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bug#29522: [bug#29555] [PATCH] gnu: rust: update rust to 1.22.1 and carg


From: Nikolai Merinov
Subject: bug#29522: [bug#29555] [PATCH] gnu: rust: update rust to 1.22.1 and cargo to 1.23.0
Date: Tue, 05 Dec 2017 11:10:21 +0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux)

Please find new version of patch: I removed linkage with libstdc++ and added 
new jemalloc-without-c++

>From 7cc263d0cbed910c9fdfcef57b52538229054e6b Mon Sep 17 00:00:00 2001
From: Nikolay Merinov <address@hidden>
Date: Sun, 3 Dec 2017 19:55:24 +0500
Subject: [PATCH] gnu: rust: update rust to 1.22.1 and cargo to 1.23.0
To: address@hidden

* gnu/packages/rust.scm (%rust-bootstrap-binaries-version): update version
(%rust-bootstrap-binaries): use x86_64 rust bootstrap package for x86_64 build
(%cargo-reference-project-file): Use specific file as "project" file when
patching rust vendored sources
(%cargo-reference-hash): sha256 sum for %cargo-reference-project-file
(rustc-bootstrap): use bootstrap package with host architecture
(cargo-bootstrap): use bootstrap package with host architecture
(rustc): Add new test dependency, fix build issues, use "./x.py" script for
build instead of "./configure"
(cargo): Update dependencies, patch shebangs for vendored sources
* gnu/packages/jemalloc.scm: add version of jemalloc without c++
---
 gnu/packages/jemalloc.scm |   10 +
 gnu/packages/rust.scm     | 1179 ++++++++++++++++++++++++++++++---------------
 2 files changed, 808 insertions(+), 381 deletions(-)

diff --git a/gnu/packages/jemalloc.scm b/gnu/packages/jemalloc.scm
index a3bd2c93a..b1f324e1a 100644
--- a/gnu/packages/jemalloc.scm
+++ b/gnu/packages/jemalloc.scm
@@ -23,6 +23,7 @@
   #:use-module ((guix licenses) #:select (bsd-2))
   #:use-module (guix packages)
   #:use-module (guix download)
+  #:use-module (guix utils)
   #:use-module (gnu packages perl)
   #:use-module (guix build-system gnu))
 
@@ -62,3 +63,12 @@
      "This library providing a malloc(3) implementation that emphasizes
 fragmentation avoidance and scalable concurrency support.")
     (license bsd-2)))
+
+(define-public jemalloc-without-c++
+  (package
+    (inherit jemalloc)
+    (name "jemalloc-without-c++")
+    (arguments
+     (substitute-keyword-arguments (package-arguments jemalloc)
+       ((#:configure-flags cf)
+        `(cons "--disable-cxx" ,cf))))))
diff --git a/gnu/packages/rust.scm b/gnu/packages/rust.scm
index 583ea37c8..11e8a8b25 100644
--- a/gnu/packages/rust.scm
+++ b/gnu/packages/rust.scm
@@ -3,6 +3,7 @@
 ;;; Copyright © 2016 Eric Le Bihan <address@hidden>
 ;;; Copyright © 2016 ng0 <address@hidden>
 ;;; Copyright © 2017 Ben Woodcroft <address@hidden>
+;;; Copyright © 2017 Nikolai Merinov <address@hidden>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -29,6 +30,7 @@
   #:use-module (gnu packages elf)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages gcc)
+  #:use-module (gnu packages gdb)
   #:use-module (gnu packages jemalloc)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages llvm)
@@ -37,17 +39,19 @@
   #:use-module (gnu packages ssh)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages version-control)
+  #:use-module (gnu packages)
   #:use-module (guix build-system cargo)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system trivial)
   #:use-module (guix download)
+  #:use-module (guix base16)      ;for generated "cargo" native-inputs
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (ice-9 match)
   #:use-module (srfi srfi-26))
 
 ;; Should be one less than the current released version.
-(define %rust-bootstrap-binaries-version "1.15.0")
+(define %rust-bootstrap-binaries-version "1.21.0")
 
 (define %rust-bootstrap-binaries
   (origin
@@ -55,10 +59,18 @@
     (uri (string-append
           "https://static.rust-lang.org/dist/";
           "rust-" %rust-bootstrap-binaries-version
-          "-i686-unknown-linux-gnu.tar.gz"))
+          "-" %host-type ".tar.gz"))
     (sha256
      (base32
-      "0wmkfx8pxmkkw021mrq9s3xhra8f0daqdl6j56pxyn4w39i0rzrw"))))
+      (match %host-type
+       ("i686-unknown-linux-gnu"
+         "1vnvqwz30hvyjcfr1f602lg43v2vlqjr3yhb5vr8xnrcc07yvjmp")
+       ("x86_64-unknown-linux-gnu"
+         "1s0866qcy0645bqhsbs3pvk2hi52ps8jzs7x096w0as033h707ml"))))))
+
+(define %cargo-reference-project-file "/dev/null")
+(define %cargo-reference-hash
+  "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")
 
 (define (increment-rust-version rust-version major patch)
   (match (string-split rust-version #\.)
@@ -92,7 +104,6 @@
     (arguments
      `(#:tests? #f
        #:strip-binaries? #f
-       #:system "i686-linux"
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)
@@ -103,8 +114,7 @@
                     (gcc:lib (assoc-ref inputs "gcc:lib"))
                     (libc (assoc-ref inputs "libc"))
                     (zlib (assoc-ref inputs "zlib"))
-                    (ld-so (string-append libc
-                                          ,(glibc-dynamic-linker 
"i686-linux")))
+                    (ld-so (string-append libc ,(glibc-dynamic-linker)))
                     (rpath (string-append out "/lib:" zlib "/lib:"
                                           libc "/lib:" gcc:lib "/lib"))
                     (rustc (string-append out "/bin/rustc"))
@@ -112,7 +122,7 @@
                (system* "bash" "install.sh"
                         (string-append "--prefix=" out)
                         (string-append "--components=rustc,"
-                                       "rust-std-i686-unknown-linux-gnu"))
+                                       "rust-std-" %host-type))
                (for-each (lambda (file)
                            (system* "patchelf" "--set-rpath" rpath file))
                          (cons* rustc rustdoc (find-files out "\\.so$")))
@@ -129,7 +139,7 @@ which can in turn be used to build the final Rust 
compiler.")
 (define cargo-bootstrap
   (package
     (name "cargo-bootstrap")
-    (version (cargo-version %rust-bootstrap-binaries-version))
+    (version (cargo-version %rust-bootstrap-binaries-version 1))
     (source %rust-bootstrap-binaries)
     (build-system gnu-build-system)
     (native-inputs
@@ -139,7 +149,6 @@ which can in turn be used to build the final Rust 
compiler.")
     (arguments
      `(#:tests? #f
        #:strip-binaries? #f
-       #:system "i686-linux"
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)
@@ -149,8 +158,7 @@ which can in turn be used to build the final Rust 
compiler.")
              (let* ((out (assoc-ref outputs "out"))
                     (gcc:lib (assoc-ref inputs "gcc:lib"))
                     (libc (assoc-ref inputs "libc"))
-                    (ld-so (string-append libc
-                                          ,(glibc-dynamic-linker 
"i686-linux")))
+                    (ld-so (string-append libc ,(glibc-dynamic-linker)))
                     (rpath (string-append out "/lib:" libc "/lib:"
                                           gcc:lib "/lib"))
                     (cargo (string-append out "/bin/cargo")))
@@ -196,11 +204,11 @@ manager, which is required to build itself.")
     (description "Meta package for a rust environment. Provides pre-compiled
 rustc-bootstrap and cargo-bootstrap packages.")
     (license license:asl2.0)))
-
+
 (define-public rustc
   (package
     (name "rustc")
-    (version (rustc-version %rust-bootstrap-binaries-version))
+    (version (rustc-version %rust-bootstrap-binaries-version 1))
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -208,109 +216,139 @@ rustc-bootstrap and cargo-bootstrap packages.")
                     "rustc-" version "-src.tar.gz"))
               (sha256
                (base32
-                "1d78jq7mc34n265by68amr9r4nzbiqrilfbwh7gx56ydn4gb6rpr"))
-            (modules '((guix build utils)))
-            (snippet
-             `(begin
-                (delete-file-recursively "src/llvm")
-                #t))))
+                "1lrzzp0nh7s61wgfs2h6ilaqi6iq89f1pd1yaf65l87bssyl4ylb"))
+              (modules '((guix build utils)))
+              (snippet
+               `(begin
+                  (delete-file-recursively "src/llvm")
+                  #t))))
     (build-system gnu-build-system)
     (native-inputs
      `(("bison" ,bison) ; For the tests
        ("cmake" ,cmake)
        ("flex" ,flex) ; For the tests
+       ("gdb" ,gdb)   ; For the tests
        ("git" ,git)
        ("procps" ,procps) ; For the tests
        ("python-2" ,python-2)
        ("rust-bootstrap" ,rust-bootstrap)
        ("which" ,which)))
     (inputs
-     `(("jemalloc" ,jemalloc)
+     `(("jemalloc" ,jemalloc-without-c++)
        ("llvm" ,llvm-3.9.1)))
     (arguments
-     `(#:phases
+     `(#:imported-modules ,%cargo-build-system-modules ;for 
`generate-checksums'
+       #:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'patch-configure
-           (lambda _
-             (substitute* "configure"
-               (("/usr/bin/env") (which "env")) ; Detect target CPU correctly.
-               (("probe_need CFG_CURL curl") "") ; Avoid curl build dependency.
-               ;; Newer LLVM has a NVPTX (NVIDIA) backend which the Rust
-               ;; Makefiles don't know about, causing a linker failure
-               ;; if we don't intervene.
-               ;; Therefore, we add NVPTX here.
-               ;; See <https://github.com/rust-lang/rust/issues/40698>.
-               ;; For the next release, we will have to use rustbuild.
-               ;; Right now, rustbuild doesn't work yet.
-               (("-DLLVM_TARGETS_TO_BUILD='")
-                "-DLLVM_TARGETS_TO_BUILD='NVPTX;")) ; Make LLVM >= 3.8.1 work.
-             (substitute* "src/tools/compiletest/src/util.rs"
-               (("(\"amd64\", \"x86_64\"),") "(\"amd64\", \"x86_64\"),
-(\"nvptx\", \"nvptx\"),")) ; Make LLVM >= 3.8.1 work.
-             (substitute* "mk/main.mk"
-               (("LLVM_OPTIONAL_COMPONENTS=")
-                "LLVM_OPTIONAL_COMPONENTS=nvptx ")) ; Make LLVM >= 3.8.1 work.
-             #t))
          (add-after 'unpack 'set-env
            (lambda _
              (setenv "SHELL" (which "sh"))
              (setenv "CONFIG_SHELL" (which "sh"))
+             ;; guix llvm-3.9.1 package install only shared libraries
+             (setenv "LLVM_LINK_SHARED" "1")
              #t))
          (add-after 'unpack 'patch-tests
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((bash (assoc-ref inputs "bash")))
-               (substitute* "src/tools/tidy/src/main.rs"
-                 (("^.*cargo.*::check.*$") ""))
+               (substitute* "src/build_helper/lib.rs"
+                 ;; In same folder as gcc there is only "gcc-ar" utility
+                 (("file\\.push_str\\(\"ar\"\\);") 
"file.push_str(\"gcc-ar\");"))
                (substitute* "src/libstd/process.rs"
                  ;; The newline is intentional.
                  ;; There's a line length "tidy" check in Rust which would
                  ;; fail otherwise.
-                 (("\"/bin/sh\"") (string-append "
-\"" bash "/bin/sh\"")))
-               ;; See 
<https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00222.html>.
+                 (("\"/bin/sh\"") (string-append "\n\"" bash "/bin/sh\"")))
+               (substitute* "src/libstd/net/tcp.rs"
+                 ;; There is no network in build environment
+                 (("fn connect_timeout_unroutable")
+                  "#[ignore]\nfn connect_timeout_unroutable"))
+               ;; 
<https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00222.html>
                (substitute* "src/libstd/sys/unix/process/process_common.rs"
-                 (("fn test_process_mask") "#[cfg_attr(target_os = \"linux\", 
ignore)]
-fn test_process_mask"))
+                 (("fn test_process_mask") "#[ignore]\nfn test_process_mask"))
                ;; Our ld-wrapper cannot process non-UTF8 bytes in LIBRARY_PATH.
-               ;; See 
<https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00193.html>.
+               ;; 
<https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00193.html>
                (delete-file-recursively 
"src/test/run-make/linker-output-non-utf8")
+               (substitute* "src/build_helper/lib.rs"
+                 ;; Bug in Rust code.
+                 ;; Current implementation assume that if dst not exist then 
it's mtime
+                 ;; is 0, but in same time "src" have 0 mtime in guix build!
+                 (("let threshold = mtime\\(dst\\);")
+                  "if !dst.exists() {\nreturn false\n}\n let threshold = 
mtime(dst);"))
                #t)))
+         (add-after 'patch-source-shebangs 'patch-cargo-checksums
+           (lambda* (#:key inputs #:allow-other-keys)
+             (substitute* "src/Cargo.lock"
+               (("(\"checksum .* = )\".*\"" all name)
+                (string-append name "\"" ,%cargo-reference-hash "\"")))
+             (for-each
+              (lambda (filename)
+                (use-modules (guix build cargo-build-system))
+                (delete-file filename)
+                (let* ((dir (dirname filename)))
+                  (display (string-append
+                            "patch-cargo-checksums: generate-checksums for "
+                            dir "\n"))
+                  (generate-checksums dir ,%cargo-reference-project-file)))
+              (find-files "src/vendor" ".cargo-checksum.json"))))
          (replace 'configure
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (gcc (assoc-ref inputs "gcc"))
+                    (gdb (assoc-ref inputs "gdb"))
                     (binutils (assoc-ref inputs "binutils"))
                     (python (assoc-ref inputs "python-2"))
                     (rustc (assoc-ref inputs "rustc-bootstrap"))
+                    (cargo (assoc-ref inputs "cargo-bootstrap"))
                     (llvm (assoc-ref inputs "llvm"))
-                    (jemalloc (assoc-ref inputs "jemalloc"))
-                    (flags (list
-                            (string-append "--prefix=" out)
-                            (string-append "--datadir=" out "/share")
-                            (string-append "--infodir=" out "/share/info")
-                            (string-append "--default-linker=" gcc "/bin/gcc")
-                            (string-append "--default-ar=" binutils "/bin/ar")
-                            (string-append "--python=" python "/bin/python2")
-                            (string-append "--local-rust-root=" rustc)
-                            (string-append "--llvm-root=" llvm)
-                            (string-append "--jemalloc-root=" jemalloc "/lib")
-                            "--release-channel=stable"
-                            "--enable-rpath"
-                            "--enable-local-rust"
-                            "--disable-rustbuild" ; rustbuild doesn't work yet.
-                            "--disable-manage-submodules")))
-               ;; Rust uses a custom configure script (no autoconf).
-               (zero? (apply system* "./configure" flags)))))
-         (add-after 'install 'wrap-rustc
+                    (jemalloc (assoc-ref inputs "jemalloc")))
+               (call-with-output-file "config.toml"
+                 (lambda (port)
+                   (display (string-append "
+[llvm]
+[build]
+cargo = \"" cargo "/bin/cargo" "\"
+rustc = \"" rustc "/bin/rustc" "\"
+python = \"" python "/bin/python2" "\"
+gdb = \"" gdb "/bin/gdb" "\"
+vendor = true
+submodules = false
+[install]
+prefix = \"" out "\"
+[rust]
+default-linker = \"" gcc "/bin/gcc" "\"
+default-ar = \"" binutils "/bin/ar" "\"
+channel = \"stable\"
+rpath = true
+# There is 2 failed codegen tests:
+# codegen/mainsubprogram.rs and codegen/mainsubprogramstart.rs
+# This tests required patched LLVM
+codegen-tests = false
+[target." %host-type "]
+llvm-config = \"" llvm "/bin/llvm-config" "\"
+cc = \"" gcc "/bin/gcc" "\"
+cxx = \"" gcc "/bin/g++" "\"
+jemalloc = \"" jemalloc "/lib/libjemalloc_pic.a" "\"
+[dist]
+") port))))))
+         (replace 'build
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (zero? (system* "./x.py" "build"))))
+         (replace 'check
            (lambda* (#:key inputs outputs #:allow-other-keys)
-             (let ((out (assoc-ref outputs "out"))
-                   (libc (assoc-ref inputs "libc"))
-                   (ld-wrapper (assoc-ref inputs "ld-wrapper")))
+             (zero? (system* "./x.py" "test"))))
+         (replace 'install
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (zero? (system* "./x.py" "install"))))
+           (add-after 'install 'wrap-rustc
+             (lambda* (#:key inputs outputs #:allow-other-keys)
+               (let ((out (assoc-ref outputs "out"))
+                     (libc (assoc-ref inputs "libc"))
+                     (ld-wrapper (assoc-ref inputs "ld-wrapper")))
                ;; Let gcc find ld and libc startup files.
-               (wrap-program (string-append out "/bin/rustc")
-                 `("PATH" ":" prefix (,(string-append ld-wrapper "/bin")))
-                 `("LIBRARY_PATH" ":" suffix (,(string-append libc "/lib"))))
-               #t))))))
+                 (wrap-program (string-append out "/bin/rustc")
+                   `("PATH" ":" prefix (,(string-append ld-wrapper "/bin")))
+                   `("LIBRARY_PATH" ":" suffix (,(string-append libc "/lib"))))
+                 #t))))))
     ;; rustc invokes gcc, so we need to set its search paths accordingly.
     (native-search-paths (package-native-search-paths gcc))
     (synopsis "Compiler for the Rust progamming language")
@@ -325,7 +363,7 @@ safety and thread safety guarantees.")
 (define-public cargo
   (package
     (name "cargo")
-    (version (cargo-version (rustc-version %rust-bootstrap-binaries-version)))
+    (version (cargo-version (rustc-version %rust-bootstrap-binaries-version) 
0))
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/rust-lang/cargo/archive/";
@@ -333,7 +371,7 @@ safety and thread safety guarantees.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "1y0zy8gk1ly0wh57y78fisk7cdd92qk0x7z664f6l7lzl2krqs7w"))))
+                "0kr7rml7v2bm7zl8jcb3056h63zpyy9m08s212i8vfwxf6lf5fzl"))))
     (build-system cargo-build-system)
     (propagated-inputs
      `(("cmake" ,cmake)
@@ -346,506 +384,870 @@ safety and thread safety guarantees.")
        ("python-2" ,python-2)
        ("zlib" ,zlib)))
     (native-inputs
-     `(("rust-openssl"
+     `(("git" ,git) ; required for tests
+       ;; Next dependencies generated with next command:
+       ;; cat Cargo.lock | awk '
+       ;;   /^"checksum/
+       ;;   { oname=name=$2; vers=$3; hash=$6;
+       ;;     if (ns[name] != 1) { ns[name]=1; } else { name = name "-" vers; }
+       ;;     print "       (\"rust-" name "\"";
+       ;;     print "        ,(origin";
+       ;;     print "           (method url-fetch)";
+       ;;     print "           (uri (crate-uri \"" oname "\" \"" vers "\"))";
+       ;;     print "           (sha256";
+       ;;     print "            (base16-string->bytevector";
+       ;;     print "             " hash "))))"
+       ;;   }'
+       ("rust-advapi32-sys"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "openssl" "0.9.6"))
+           (uri (crate-uri "advapi32-sys" "0.2.0"))
            (sha256
-            (base32
-             "0g28g692gby6izp9qmnwnyxyhf9b0870yhd500p18j9l69lxl00c"))))
-       ("rust-strsim"
+            (base16-string->bytevector
+             
"e06588080cb19d0acb6739808aafa5f26bfb2ca015b2b6370028b44cf7cb8a9a"))))
+       ("rust-aho-corasick"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "strsim" "0.5.1"))
+           (uri (crate-uri "aho-corasick" "0.5.3"))
            (sha256
-            (base32
-             "0bj4fsm1l2yqbfpspyvjf9m3m50pskapcddzm0ji9c74jbgnkh2h"))))
-       ("rust-libc"
+            (base16-string->bytevector
+             
"ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"))))
+       ("rust-aho-corasick-0.6.3"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "libc" "0.2.18"))
+           (uri (crate-uri "aho-corasick" "0.6.3"))
            (sha256
-            (base32
-             "0w5cghr0wx3hi2sclk8r9iyzlbxsakil87ada40q2ykyhky24655"))))
+            (base16-string->bytevector
+             
"500909c4f87a9e52355b26626d890833e9e1d53ac566db76c36faa984b889699"))))
+       ("rust-atty"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "atty" "0.2.3"))
+           (sha256
+            (base16-string->bytevector
+             
"21e50800ec991574876040fff8ee46b136a53e985286fbe6a3bdfe6421b78860"))))
+       ("rust-backtrace"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "backtrace" "0.3.3"))
+           (sha256
+            (base16-string->bytevector
+             
"99f2ce94e22b8e664d95c57fff45b98a966c2252b60691d0b7aeeccd88d70983"))))
+       ("rust-backtrace-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "backtrace-sys" "0.1.14"))
+           (sha256
+            (base16-string->bytevector
+             
"c63ea141ef8fdb10409d0f5daf30ac51f84ef43bff66f16627773d2a292cd189"))))
        ("rust-bitflags"
         ,(origin
            (method url-fetch)
            (uri (crate-uri "bitflags" "0.7.0"))
            (sha256
-            (base32
-             "0v8hh6wdkpk9my8z8442g4hqrqf05h0qj53dsay6mv18lqvqklda"))))
-       ("rust-unicode-normalization"
+            (base16-string->bytevector
+             
"aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"))))
+       ("rust-bitflags-0.9.1"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "unicode-normalization" "0.1.2"))
+           (uri (crate-uri "bitflags" "0.9.1"))
            (sha256
-            (base32
-             "0whi4xxqcjfsz6ywyrfd5lhgk1a44c86qwgvfqcmzidshcpklr16"))))
-       ("rust-rand"
+            (base16-string->bytevector
+             
"4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"))))
+       ("rust-bufstream"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "rand" "0.3.14"))
+           (uri (crate-uri "bufstream" "0.1.3"))
            (sha256
-            (base32
-             "1984zvj8572ig28fz6idc4r96fx39h4lzmr07yf7kb7gdn6di497"))))
-       ("rust-gcc"
+            (base16-string->bytevector
+             
"f2f382711e76b9de6c744cc00d0497baba02fb00a787f088c879f01d09468e32"))))
+       ("rust-cc"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "gcc" "0.3.39"))
+           (uri (crate-uri "cc" "1.0.0"))
            (sha256
-            (base32
-             "1q0idjvmhp6shkb9hqabh51rgfr8dqpi1xfmyzq7q8vgzybll7kp"))))
-       ("rust-tempdir"
+            (base16-string->bytevector
+             
"7db2f146208d7e0fbee761b09cd65a7f51ccc38705d4e7262dad4d73b12a76b1"))))
+       ("rust-cfg-if"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "tempdir" "0.3.5"))
+           (uri (crate-uri "cfg-if" "0.1.2"))
            (sha256
-            (base32
-             "1mij45kgzflkja0h8q9avrik76h5a0b60m9hfd6k9yqxbiplm5w7"))))
-       ("rust-memchr"
+            (base16-string->bytevector
+             
"d4c819a1287eb618df47cc647173c5c4c66ba19d888a6e50d605672aed3140de"))))
+       ("rust-cmake"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "memchr" "0.1.11"))
+           (uri (crate-uri "cmake" "0.1.26"))
            (sha256
-            (base32
-             "084d85hjfa3xf5kwdms2mhbkh78m1gl2254cp5swcxj3a7xjkdnq"))))
-       ("rust-rustc-serialize"
+            (base16-string->bytevector
+             
"357c07e7a1fc95732793c1edb5901e1a1f305cfcf63a90eb12dbd22bdb6b789d"))))
+       ("rust-commoncrypto"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "rustc-serialize" "0.3.21"))
+           (uri (crate-uri "commoncrypto" "0.2.0"))
            (sha256
-            (base32
-             "064qmyr2508qf78dwcpiv25rfjp9h9vd0wrj4mmwgppjg4fgrydz"))))
-       ("rust-cmake"
+            (base16-string->bytevector
+             
"d056a8586ba25a1e4d61cb090900e495952c7886786fc55f909ab2f819b69007"))))
+       ("rust-commoncrypto-sys"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "cmake" "0.1.19"))
+           (uri (crate-uri "commoncrypto-sys" "0.2.0"))
            (sha256
-            (base32
-             "0am8c8ns1h6b1a5x9z2r1m3rszvya5nccl2pzszzjv5aiiaydgcf"))))
-       ("rust-matches"
+            (base16-string->bytevector
+             
"1fed34f46747aa73dfaa578069fd8279d2818ade2b55f38f22a9401c7f4083e2"))))
+       ("rust-conv"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "matches" "0.1.4"))
+           (uri (crate-uri "conv" "0.3.3"))
            (sha256
-            (base32
-             "1c8190j84hbicy8jwscw5icfam12j6lcxi02lvmadq9260p65mzg"))))
-       ("rust-winapi"
+            (base16-string->bytevector
+             
"78ff10625fd0ac447827aa30ea8b861fead473bb60aeb73af6c1c58caf0d1299"))))
+       ("rust-core-foundation"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "winapi" "0.2.8"))
+           (uri (crate-uri "core-foundation" "0.4.4"))
            (sha256
-            (base32
-             "0yh816lh6lf56dpsgxy189c2ai1z3j8mw9si6izqb6wsjkbcjz8n"))))
-       ("rust-pkg-config"
+            (base16-string->bytevector
+             
"5909502e547762013619f4c4e01cc7393c20fe2d52d7fa471c1210adb2320dc7"))))
+       ("rust-core-foundation-sys"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "pkg-config" "0.3.8"))
+           (uri (crate-uri "core-foundation-sys" "0.4.4"))
            (sha256
-            (base32
-             "1ypj4nj2z9z27qg06v3g40jyhw685i3l2wi098d21bvyri781vlc"))))
-       ("rust-libssh2-sys"
+            (base16-string->bytevector
+             
"bc9fb3d6cb663e6fd7cf1c63f9b144ee2b1e4a78595a0451dd34bff85b9a3387"))))
+       ("rust-crossbeam"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "libssh2-sys" "0.2.5"))
+           (uri (crate-uri "crossbeam" "0.2.10"))
            (sha256
-            (base32
-             "0d2r36hrh9vc1821r0v4kywv30svpf37d31calwql69fbij3bqci"))))
-       ("rust-libz-sys"
+            (base16-string->bytevector
+             
"0c5ea215664ca264da8a9d9c3be80d2eaf30923c259d03e870388eb927508f97"))))
+       ("rust-crossbeam-0.3.0"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "crossbeam" "0.3.0"))
+           (sha256
+            (base16-string->bytevector
+             
"8837ab96533202c5b610ed44bc7f4183e7957c1c8f56e8cc78bb098593c8ba0a"))))
+       ("rust-crypto-hash"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "crypto-hash" "0.3.0"))
+           (sha256
+            (base16-string->bytevector
+             
"34903878eec1694faf53cae8473a088df333181de421d4d3d48061d6559fe602"))))
+       ("rust-curl"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "libz-sys" "1.0.13"))
+           (uri (crate-uri "curl" "0.4.8"))
            (sha256
-            (base32
-             "034pgvxzgsv37iafgs0lmvd1ifm0bg0zm1xcsn9x71nn8lm93vp5"))))
+            (base16-string->bytevector
+             
"7034c534a1d7d22f7971d6088aa9d281d219ef724026c3428092500f41ae9c2c"))))
        ("rust-curl-sys"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "curl-sys" "0.3.6"))
+           (uri (crate-uri "curl-sys" "0.3.15"))
            (sha256
-            (base32
-             "0fi8kjz3f8m8vfazycs3ddm0h6j3x78hw78gwbvybx71129192i1"))))
-       ("rust-error-chain"
+            (base16-string->bytevector
+             
"4bee31aa3a079d5f3ff9579ea4dcfb1b1a17a40886f5f467436d383e78134b55"))))
+       ("rust-custom_derive"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "error-chain" "0.7.2"))
+           (uri (crate-uri "custom_derive" "0.1.7"))
            (sha256
-            (base32
-             "03qjh6l2a9fkiyg0428p7q3dcpi47cbmrqf9zmlymkg43v3v731i"))))
-       ("rust-metadeps"
+            (base16-string->bytevector
+             
"ef8ae57c4978a2acd8b869ce6b9ca1dfe817bff704c220209fdef2c0b75a01b9"))))
+       ("rust-dbghelp-sys"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "metadeps" "1.1.1"))
+           (uri (crate-uri "dbghelp-sys" "0.2.0"))
            (sha256
-            (base32
-             "0l818461bslb7nrs7r1amkqv45n53fcp5sabyqipwx0xxbkzz7w2"))))
-       ("rust-openssl-sys"
+            (base16-string->bytevector
+             
"97590ba53bcb8ac28279161ca943a924d1fd4a8fb3fa63302591647c4fc5b850"))))
+       ("rust-docopt"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "openssl-sys" "0.9.6"))
+           (uri (crate-uri "docopt" "0.8.1"))
            (sha256
-            (base32
-             "1hzpyf9z8xg1yn5r9g17bl5j20nifd6s2zp10xh90v7m0sd2yj5i"))))
-       ("rust-fs2"
+            (base16-string->bytevector
+             
"3b5b93718f8b3e5544fcc914c43de828ca6c6ace23e0332c6080a2977b49787a"))))
+       ("rust-dtoa"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "fs2" "0.3.0"))
+           (uri (crate-uri "dtoa" "0.4.2"))
            (sha256
-            (base32
-             "0lg57mgcm1r0m8jm4nqpcrl6lmxg8lj854k2h0r7qp46pphh2034"))))
-       ("rust-log"
+            (base16-string->bytevector
+             
"09c3753c3db574d215cba4ea76018483895d7bff25a31b49ba45db21c48e50ab"))))
+       ("rust-env_logger"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "log" "0.3.6"))
+           (uri (crate-uri "env_logger" "0.4.3"))
            (sha256
-            (base32
-             "0m40hgs3cg57dd5kk1mabfk6gk8z6l1cihar8akx4kmzz1xlk0xb"))))
+            (base16-string->bytevector
+             
"3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"))))
+       ("rust-error-chain"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "error-chain" "0.11.0"))
+           (sha256
+            (base16-string->bytevector
+             
"ff511d5dc435d703f4971bc399647c9bc38e20cb41452e3b9feb4765419ed3f3"))))
        ("rust-filetime"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "filetime" "0.1.10"))
+           (uri (crate-uri "filetime" "0.1.12"))
            (sha256
-            (base32
-             "08p9scgv30i1141cnp5xi4pqlnkfci455nrpca55df1r867anqsk"))))
-       ("rust-tar"
+            (base16-string->bytevector
+             
"6ab199bf38537c6f38792669e081e0bb278b9b7405bba2642e4e5d15bf732c0e"))))
+       ("rust-flate2"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "flate2" "0.2.20"))
+           (sha256
+            (base16-string->bytevector
+             
"e6234dd4468ae5d1e2dbb06fe2b058696fdc50a339c68a393aefbf00bc81e423"))))
+       ("rust-fnv"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "fnv" "1.0.5"))
+           (sha256
+            (base16-string->bytevector
+             
"6cc484842f1e2884faf56f529f960cc12ad8c71ce96cc7abba0a067c98fee344"))))
+       ("rust-foreign-types"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "foreign-types" "0.2.0"))
+           (sha256
+            (base16-string->bytevector
+             
"3e4056b9bd47f8ac5ba12be771f77a0dae796d1bbaaf5fd0b9c2d38b69b8a29d"))))
+       ("rust-fs2"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "fs2" "0.4.2"))
+           (sha256
+            (base16-string->bytevector
+             
"9ab76cfd2aaa59b7bf6688ad9ba15bbae64bff97f04ea02144cfd3443e5c2866"))))
+       ("rust-git2"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "git2" "0.6.8"))
+           (sha256
+            (base16-string->bytevector
+             
"0c1c0203d653f4140241da0c1375a404f0a397249ec818cd2076c6280c50f6fa"))))
+       ("rust-git2-curl"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "tar" "0.4.9"))
+           (uri (crate-uri "git2-curl" "0.7.0"))
            (sha256
-            (base32
-             "1vi3nl8s3jjf5l20ni47gmh1p4bdjfh7q50fbg7izzqrf7i4i40c"))))
+            (base16-string->bytevector
+             
"68676bc784bf0bef83278898929bf64a251e87c0340723d0b93fa096c9c5bf8e"))))
        ("rust-glob"
         ,(origin
            (method url-fetch)
            (uri (crate-uri "glob" "0.2.11"))
            (sha256
-            (base32
-             "1ysvi72slkw784fcsymgj4308c3y03gwjjzqxp80xdjnkbh8vqcb"))))
-       ("rust-cfg-if"
+            (base16-string->bytevector
+             
"8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"))))
+       ("rust-globset"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "cfg-if" "0.1.0"))
+           (uri (crate-uri "globset" "0.2.0"))
            (sha256
-            (base32
-             "137qikjcal4h75frzcn6mknygqk8vy5bva7w851aydb5gc6pc7ny"))))
-       ("rust-winapi-build"
+            (base16-string->bytevector
+             
"feeb1b6840809ef5efcf7a4a990bc4e1b7ee3df8cf9e2379a75aeb2ba42ac9c3"))))
+       ("rust-hamcrest"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "winapi-build" "0.1.1"))
+           (uri (crate-uri "hamcrest" "0.1.1"))
            (sha256
-            (base32
-             "1g4rqsgjky0a7530qajn2bbfcrl2v0zb39idgdws9b1l7gp5wc9d"))))
-       ("rust-advapi32-sys"
+            (base16-string->bytevector
+             
"bf088f042a467089e9baa4972f57f9247e42a0cc549ba264c7a04fbb8ecb89d4"))))
+       ("rust-hex"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "advapi32-sys" "0.2.0"))
+           (uri (crate-uri "hex" "0.2.0"))
            (sha256
-            (base32
-             "16largvlrd1800vvdchml0ngnszjlnpqm01rcz5hm7di1h48hrg0"))))
-       ("rust-gdi32-sys"
+            (base16-string->bytevector
+             
"d6a22814455d41612f41161581c2883c0c6a1c41852729b17d5ed88f01e153aa"))))
+       ("rust-home"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "gdi32-sys" "0.2.0"))
+           (uri (crate-uri "home" "0.3.0"))
            (sha256
-            (base32
-             "0605d4ngjsspghwjv4jicajich1gnl0aik9f880ajjzjixd524h9"))))
-       ("rust-ws2_32-sys"
+            (base16-string->bytevector
+             
"9f25ae61099d8f3fee8b483df0bd4ecccf4b2731897aad40d50eca1b641fe6db"))))
+       ("rust-idna"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "ws2_32-sys" "0.2.1"))
+           (uri (crate-uri "idna" "0.1.4"))
            (sha256
-            (base32
-             "0ppscg5qfqaw0gzwv2a4nhn5bn01ff9iwn6ysqnzm4n8s3myz76m"))))
-       ("rust-user32-sys"
+            (base16-string->bytevector
+             
"014b298351066f1512874135335d62a789ffe78a9974f94b43ed5621951eaf7d"))))
+       ("rust-ignore"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "user32-sys" "0.2.0"))
+           (uri (crate-uri "ignore" "0.2.2"))
            (sha256
-            (base32
-             "0ivxc7hmsxax9crdhxdd1nqwik4s9lhb2x59lc8b88bv20fp3x2f"))))
-       ("rust-unicode-bidi"
+            (base16-string->bytevector
+             
"b3fcaf2365eb14b28ec7603c98c06cc531f19de9eb283d89a3dff8417c8c99f5"))))
+       ("rust-itoa"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "itoa" "0.3.4"))
+           (sha256
+            (base16-string->bytevector
+             
"8324a32baf01e2ae060e9de58ed0bc2320c9a2833491ee36cd3b4c414de4db8c"))))
+       ("rust-jobserver"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "jobserver" "0.1.6"))
+           (sha256
+            (base16-string->bytevector
+             
"443ae8bc0af6c106e6e8b77e04684faecc1a5ce94e058f4c2b0a037b0ea1b133"))))
+       ("rust-kernel32-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "kernel32-sys" "0.2.2"))
+           (sha256
+            (base16-string->bytevector
+             
"7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"))))
+       ("rust-lazy_static"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "lazy_static" "0.2.9"))
+           (sha256
+            (base16-string->bytevector
+             
"c9e5e58fa1a4c3b915a561a78a22ee0cac6ab97dca2504428bc1cb074375f8d5"))))
+       ("rust-libc"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "libc" "0.2.31"))
+           (sha256
+            (base16-string->bytevector
+             
"d1419b2939a0bc44b77feb34661583c7546b532b192feab36249ab584b86856c"))))
+       ("rust-libgit2-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "libgit2-sys" "0.6.16"))
+           (sha256
+            (base16-string->bytevector
+             
"6f74b4959cef96898f5123148724fc7dee043b9a6b99f219d948851bfbe53cb2"))))
+       ("rust-libssh2-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "libssh2-sys" "0.2.6"))
+           (sha256
+            (base16-string->bytevector
+             
"0db4ec23611747ef772db1c4d650f8bd762f07b461727ec998f953c614024b75"))))
+       ("rust-libz-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "libz-sys" "1.0.17"))
+           (sha256
+            (base16-string->bytevector
+             
"44ebbc760fd2d2f4d93de09a0e13d97e057612052e871da9985cedcb451e6bd5"))))
+       ("rust-log"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "log" "0.3.8"))
+           (sha256
+            (base16-string->bytevector
+             
"880f77541efa6e5cc74e76910c9884d9859683118839d6a1dc3b11e63512565b"))))
+       ("rust-magenta"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "unicode-bidi" "0.2.3"))
+           (uri (crate-uri "magenta" "0.1.1"))
            (sha256
-            (base32
-             "0gqbyf6slkgzr14nf6v8dw8a19l5snh6bpms8bpfvzpxdawwxxy1"))))
+            (base16-string->bytevector
+             
"4bf0336886480e671965f794bc9b6fce88503563013d1bfb7a502c81fe3ac527"))))
+       ("rust-magenta-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "magenta-sys" "0.1.1"))
+           (sha256
+            (base16-string->bytevector
+             
"40d014c7011ac470ae28e2f76a02bfea4a8480f73e701353b49ad7a8d75f4699"))))
+       ("rust-matches"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "matches" "0.1.6"))
+           (sha256
+            (base16-string->bytevector
+             
"100aabe6b8ff4e4a7e32c1c13523379802df0772b82466207ac25b013f193376"))))
+       ("rust-memchr"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "memchr" "0.1.11"))
+           (sha256
+            (base16-string->bytevector
+             
"d8b629fb514376c675b98c1421e80b151d3817ac42d7c667717d282761418d20"))))
+       ("rust-memchr-1.0.1"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "memchr" "1.0.1"))
+           (sha256
+            (base16-string->bytevector
+             
"1dbccc0e46f1ea47b9f17e6d67c5a96bd27030519c519c9c91327e31275a47b4"))))
+       ("rust-miniz-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "miniz-sys" "0.1.10"))
+           (sha256
+            (base16-string->bytevector
+             
"609ce024854aeb19a0ef7567d348aaa5a746b32fb72e336df7fcc16869d7e2b4"))))
+       ("rust-miow"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "miow" "0.2.1"))
+           (sha256
+            (base16-string->bytevector
+             
"8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"))))
        ("rust-net2"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "net2" "0.2.26"))
+           (uri (crate-uri "net2" "0.2.31"))
            (sha256
-            (base32
-             "1qp3q6xynb481rsp3ig1nmqb6qlxfba3shfrmqij88cppsv9rpsy"))))
-       ("rust-utf8-ranges"
+            (base16-string->bytevector
+             
"3a80f842784ef6c9a958b68b7516bc7e35883c614004dd94959a4dca1b716c09"))))
+       ("rust-num"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "utf8-ranges" "0.1.3"))
+           (uri (crate-uri "num" "0.1.40"))
            (sha256
-            (base32
-             "03xf604b2v51ag3jgzw92l97xnb10kw9zv948bhc7ja1ik017jm1"))))
-       ("rust-crossbeam"
+            (base16-string->bytevector
+             
"a311b77ebdc5dd4cf6449d81e4135d9f0e3b153839ac90e648a8ef538f923525"))))
+       ("rust-num-bigint"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "crossbeam" "0.2.10"))
+           (uri (crate-uri "num-bigint" "0.1.40"))
            (sha256
-            (base32
-             "15wga0kvk3iqf3l077957j931brf1pl3p74xibd698jccqas4phc"))))
-       ("rust-toml"
+            (base16-string->bytevector
+             
"8fd0f8dbb4c0960998958a796281d88c16fbe68d87b1baa6f31e2979e81fd0bd"))))
+       ("rust-num-complex"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "toml" "0.2.1"))
+           (uri (crate-uri "num-complex" "0.1.40"))
            (sha256
-            (base32
-             "1d1cz43bxrx4fd6j2p6myckf81f72bp47akg36y3flxjkhj60svk"))))
-       ("rust-aho-corasick"
+            (base16-string->bytevector
+             
"503e668405c5492d67cf662a81e05be40efe2e6bcf10f7794a07bd9865e704e6"))))
+       ("rust-num-integer"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "aho-corasick" "0.5.3"))
+           (uri (crate-uri "num-integer" "0.1.35"))
+           (sha256
+            (base16-string->bytevector
+             
"d1452e8b06e448a07f0e6ebb0bb1d92b8890eea63288c0b627331d53514d0fba"))))
+       ("rust-num-iter"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "num-iter" "0.1.34"))
+           (sha256
+            (base16-string->bytevector
+             
"7485fcc84f85b4ecd0ea527b14189281cf27d60e583ae65ebc9c088b13dffe01"))))
+       ("rust-num-rational"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "num-rational" "0.1.39"))
+           (sha256
+            (base16-string->bytevector
+             
"288629c76fac4b33556f4b7ab57ba21ae202da65ba8b77466e6d598e31990790"))))
+       ("rust-num-traits"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "num-traits" "0.1.40"))
+           (sha256
+            (base16-string->bytevector
+             
"99843c856d68d8b4313b03a17e33c4bb42ae8f6610ea81b28abe076ac721b9b0"))))
+       ("rust-num_cpus"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "num_cpus" "1.7.0"))
+           (sha256
+            (base16-string->bytevector
+             
"514f0d73e64be53ff320680ca671b64fe3fb91da01e1ae2ddc99eb51d453b20d"))))
+       ("rust-openssl"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "openssl" "0.9.19"))
+           (sha256
+            (base16-string->bytevector
+             
"816914b22eb15671d62c73442a51978f311e911d6a6f6cbdafa6abce1b5038fc"))))
+       ("rust-openssl-probe"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "openssl-probe" "0.1.1"))
+           (sha256
+            (base16-string->bytevector
+             
"d98df0270d404ccd3c050a41d579c52d1db15375168bb3471e04ec0f5f378daf"))))
+       ("rust-openssl-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "openssl-sys" "0.9.19"))
+           (sha256
+            (base16-string->bytevector
+             
"1e4c63a7d559c1e5afa6d6a9e6fa34bbc5f800ffc9ae08b72c605420b0c4f5e8"))))
+       ("rust-percent-encoding"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "percent-encoding" "1.0.0"))
+           (sha256
+            (base16-string->bytevector
+             
"de154f638187706bde41d9b4738748933d64e6b37bdbffc0b47a97d16a6ae356"))))
+       ("rust-pkg-config"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "pkg-config" "0.3.9"))
            (sha256
-            (base32
-             "0rnvdmlajikq0i4zdy1p3pv699q6apvsxfc7av7byhppllp2r5ya"))))
+            (base16-string->bytevector
+             
"3a8b4c6b8165cd1a1cd4b9b120978131389f64bdaf456435caa41e630edba903"))))
        ("rust-psapi-sys"
         ,(origin
            (method url-fetch)
            (uri (crate-uri "psapi-sys" "0.1.0"))
            (sha256
-            (base32
-             "0y14g8qshsfnmb7nk2gs1rpbrs1wrggajmzp4yby4q6k0wd5vkdb"))))
-       ("rust-idna"
+            (base16-string->bytevector
+             
"abcd5d1a07d360e29727f757a9decb3ce8bc6e0efa8969cfaad669a8317a2478"))))
+       ("rust-quote"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "idna" "0.1.0"))
+           (uri (crate-uri "quote" "0.3.15"))
            (sha256
-            (base32
-             "049c2rmlydrrrgrxdaq2v21adx9vkfh6k9x4xj56ckyf01p26lqh"))))
-       ("rust-url"
+            (base16-string->bytevector
+             
"7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"))))
+       ("rust-rand"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "rand" "0.3.16"))
+           (sha256
+            (base16-string->bytevector
+             
"eb250fd207a4729c976794d03db689c9be1d634ab5a1c9da9492a13d8fecbcdf"))))
+       ("rust-redox_syscall"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "redox_syscall" "0.1.31"))
+           (sha256
+            (base16-string->bytevector
+             
"8dde11f18c108289bef24469638a04dce49da56084f2d50618b226e47eb04509"))))
+       ("rust-redox_termios"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "redox_termios" "0.1.1"))
+           (sha256
+            (base16-string->bytevector
+             
"7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"))))
+       ("rust-regex"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "regex" "0.1.80"))
+           (sha256
+            (base16-string->bytevector
+             
"4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"))))
+       ("rust-regex-0.2.2"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "url" "1.2.3"))
+           (uri (crate-uri "regex" "0.2.2"))
            (sha256
-            (base32
-             "1myr1i8djbl2bhvvrm6n3h7bj7sl6kh5dmaaz2f7c6x8hyyzgk28"))))
+            (base16-string->bytevector
+             
"1731164734096285ec2a5ec7fea5248ae2f5485b3feeb0115af4fda2183b2d1b"))))
        ("rust-regex-syntax"
         ,(origin
            (method url-fetch)
            (uri (crate-uri "regex-syntax" "0.3.9"))
            (sha256
-            (base32
-             "0ms9hgdhhsxw9w920i7gipydvagf100bb56jbs192rz86ln01v7r"))))
-       ("rust-kernel32-sys"
+            (base16-string->bytevector
+             
"f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"))))
+       ("rust-regex-syntax-0.4.1"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "kernel32-sys" "0.2.2"))
+           (uri (crate-uri "regex-syntax" "0.4.1"))
            (sha256
-            (base32
-             "1389av0601a9yz8dvx5zha9vmkd6ik7ax0idpb032d28555n41vm"))))
-       ("rust-term"
+            (base16-string->bytevector
+             
"ad890a5eef7953f55427c50575c680c42841653abd2b028b68cd223d157f62db"))))
+       ("rust-rustc-demangle"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "term" "0.4.4"))
+           (uri (crate-uri "rustc-demangle" "0.1.5"))
            (sha256
-            (base32
-             "0jpr7jb1xidadh0arklwr99r8w1k1dfc4an3ginpsq5nnfigivrx"))))
-       ("rust-thread-id"
+            (base16-string->bytevector
+             
"aee45432acc62f7b9a108cc054142dac51f979e69e71ddce7d6fc7adf29e817e"))))
+       ("rust-rustc-serialize"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "thread-id" "2.0.0"))
+           (uri (crate-uri "rustc-serialize" "0.3.24"))
            (sha256
-            (base32
-             "00zzs2bx1xw8aqm5plqqgr7bc2zz6zkqrdxq8vpiqb8hc2srslx9"))))
-       ("rust-thread_local"
+            (base16-string->bytevector
+             
"dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"))))
+       ("rust-same-file"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "thread_local" "0.2.7"))
+           (uri (crate-uri "same-file" "0.1.3"))
            (sha256
-            (base32
-             "1mgxikqvhpsic6xk7pan95lvgsky1sdxzw2w5m2l35pgrazxnxl5"))))
-       ("rust-miow"
+            (base16-string->bytevector
+             
"d931a44fdaa43b8637009e7632a02adc4f2b2e0733c08caa4cf00e8da4a117a7"))))
+       ("rust-scoped-tls"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "miow" "0.1.3"))
+           (uri (crate-uri "scoped-tls" "0.1.0"))
            (sha256
-            (base32
-             "16jvfjsp6fr4mbd2sw5hcdmi4dsa0m0aa45gjz78mb1h4mwcdgym"))))
-       ("rust-regex"
+            (base16-string->bytevector
+             
"f417c22df063e9450888a7561788e9bd46d3bb3c1466435b4eccb903807f147d"))))
+       ("rust-scopeguard"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "regex" "0.1.80"))
+           (uri (crate-uri "scopeguard" "0.1.2"))
            (sha256
-            (base32
-             "0bs036h3vzc6pj5jj4vc909s9rppq7b808ic99qn0y6gm3karm2g"))))
-       ("rust-num_cpus"
+            (base16-string->bytevector
+             
"59a076157c1e2dc561d8de585151ee6965d910dd4dcb5dabb7ae3e83981a6c57"))))
+       ("rust-semver"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "num_cpus" "1.1.0"))
+           (uri (crate-uri "semver" "0.8.0"))
            (sha256
-            (base32
-             "1bfwcn3yhwa31rinjw9yr7b6gvn6c06hnwnjz06pvm938w4fd448"))))
-       ("rust-libgit2-sys"
+            (base16-string->bytevector
+             
"bee2bc909ab2d8d60dab26e8cad85b25d795b14603a0dcb627b78b9d30b6454b"))))
+       ("rust-semver-parser"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "libgit2-sys" "0.6.6"))
+           (uri (crate-uri "semver-parser" "0.7.0"))
            (sha256
-            (base32
-             "074h9q4p60xh6canb0sj4vrc801wqv6p53l9lp0q724bkwzf7967"))))
-       ("rust-env_logger"
+            (base16-string->bytevector
+             
"388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"))))
+       ("rust-serde"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "env_logger" "0.3.5"))
+           (uri (crate-uri "serde" "1.0.15"))
            (sha256
-            (base32
-             "0bvcjgkw4s3k1rd7glpflgc8s9a393zjd6jfdgvs8gjvwj0dgaqm"))))
-       ("rust-openssl-probe"
+            (base16-string->bytevector
+             
"6a7046c9d4c6c522d10b2d098f9bebe2bef227e0e74044d8c1bfcf6b476af799"))))
+       ("rust-serde_derive"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "openssl-probe" "0.1.0"))
+           (uri (crate-uri "serde_derive" "1.0.15"))
            (sha256
-            (base32
-             "0689h6rhzy6dypqr90lsxnf108nsnh952wsx7ggs70s48b44jvbm"))))
-       ("rust-lazy_static"
+            (base16-string->bytevector
+             
"1afcaae083fd1c46952a315062326bc9957f182358eb7da03b57ef1c688f7aa9"))))
+       ("rust-serde_derive_internals"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "lazy_static" "0.2.2"))
+           (uri (crate-uri "serde_derive_internals" "0.16.0"))
            (sha256
-            (base32
-             "16z1h7w702sxnscak38jykxlhxq0b5ip4mndlb46pkaqwzi0xgka"))))
-       ("rust-semver-parser"
+            (base16-string->bytevector
+             
"bd381f6d01a6616cdba8530492d453b7761b456ba974e98768a18cad2cd76f58"))))
+       ("rust-serde_ignored"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "semver-parser" "0.6.1"))
+           (uri (crate-uri "serde_ignored" "0.0.4"))
            (sha256
-            (base32
-             "1s8s7a7yg8xhgci17y0xhyyncg229byivhpr0wbs3ljdlyjl73p8"))))
-       ("rust-semver"
+            (base16-string->bytevector
+             
"190e9765dcedb56be63b6e0993a006c7e3b071a016a304736e4a315dc01fb142"))))
+       ("rust-serde_json"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "semver" "0.5.1"))
+           (uri (crate-uri "serde_json" "1.0.3"))
            (sha256
-            (base32
-             "1xbiv8l72rmngb3lgbmk3vd4lalcbzxcnrn085c2b75irl7gcbxf"))))
-       ("rust-docopt"
+            (base16-string->bytevector
+             
"d243424e06f9f9c39e3cd36147470fd340db785825e367625f79298a6ac6b7ac"))))
+       ("rust-shell-escape"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "shell-escape" "0.1.3"))
+           (sha256
+            (base16-string->bytevector
+             
"dd5cc96481d54583947bfe88bf30c23d53f883c6cd0145368b69989d97b84ef8"))))
+       ("rust-socket2"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "docopt" "0.6.86"))
+           (uri (crate-uri "socket2" "0.2.3"))
            (sha256
-            (base32
-             "1nf4f4zf5yk0d0l4kl7hkii4na22fhn0l2hgfb46yzv08l2g6zja"))))
-       ("rust-miniz-sys"
+            (base16-string->bytevector
+             
"9e76b159741052c7deaa9fd0b5ca6b5f79cecf525ed665abfe5002086c6b2791"))))
+       ("rust-strsim"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "miniz-sys" "0.1.7"))
+           (uri (crate-uri "strsim" "0.6.0"))
            (sha256
-            (base32
-             "0m7dlggsxash0k5jkx576p556g9r8vnhyl9244gjxhq1g8rls7wx"))))
-       ("rust-curl"
+            (base16-string->bytevector
+             
"b4d15c810519a91cf877e7e36e63fe068815c678181439f2f29e2562147c3694"))))
+       ("rust-syn"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "curl" "0.4.1"))
+           (uri (crate-uri "syn" "0.11.11"))
            (sha256
-            (base32
-             "1b0y27b6vpqffgzm2kxc1s2i6bgdzxk3wn65g2asbcdxrvys3mcg"))))
-       ("rust-flate2"
+            (base16-string->bytevector
+             
"d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"))))
+       ("rust-synom"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "flate2" "0.2.14"))
+           (uri (crate-uri "synom" "0.11.3"))
            (sha256
-            (base32
-             "1fx3zsls5bb1zfx87s5sxkgk853z4nhjsbvq5s6if13kjlg4isry"))))
-       ("rust-git2"
+            (base16-string->bytevector
+             
"a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"))))
+       ("rust-tar"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "git2" "0.6.3"))
+           (uri (crate-uri "tar" "0.4.13"))
            (sha256
-            (base32
-             "06b1bw3pwszs8617xn8js6h0j983qjgfwsychw33lshccj3cld05"))))
-       ("rust-crates-io"
+            (base16-string->bytevector
+             
"281285b717926caa919ad905ef89c63d75805c7d89437fb873100925a53f2b1b"))))
+       ("rust-tempdir"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "crates-io" "0.4.0"))
+           (uri (crate-uri "tempdir" "0.3.5"))
            (sha256
-            (base32
-             "0kk6abp1qbpv44hkq1yjp7xgpzjzafs83i1l26ycr0aph1gbwig9"))))
-       ("rust-git2-curl"
+            (base16-string->bytevector
+             
"87974a6f5c1dfb344d733055601650059a3363de2a6104819293baff662132d6"))))
+       ("rust-termcolor"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "git2-curl" "0.7.0"))
+           (uri (crate-uri "termcolor" "0.3.3"))
            (sha256
-            (base32
-             "13mzqp4rd81zp78261rlq23iw9aaysdr56484y1yy2xzhk3nnrv8"))))
-       ("rust-bufstream"
+            (base16-string->bytevector
+             
"9065bced9c3e43453aa3d56f1e98590b8455b341d2fa191a1090c0dd0b242c75"))))
+       ("rust-termion"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "bufstream" "0.1.2"))
+           (uri (crate-uri "termion" "1.5.1"))
            (sha256
-            (base32
-             "0x6h27md1fwabbhbycfldj0wklrpjr520z9p0cpzm60fzzidnj3v"))))
-       ("rust-hamcrest"
+            (base16-string->bytevector
+             
"689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"))))
+       ("rust-thread-id"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "hamcrest" "0.1.1"))
+           (uri (crate-uri "thread-id" "2.0.0"))
            (sha256
-            (base32
-             "1m49rf7bnkx0qxja56slrjh44zi4z5bjz5x4pblqjw265828y25z"))))
-       ("rust-num"
+            (base16-string->bytevector
+             
"a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"))))
+       ("rust-thread_local"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "num" "0.1.36"))
+           (uri (crate-uri "thread_local" "0.2.7"))
            (sha256
-            (base32
-             "081i1r3mdz6jasqd7qwraqqfqa3sdpvdvxl1xq0s7ip714xw1rxx"))))
-       ("rust-num-traits"
+            (base16-string->bytevector
+             
"8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"))))
+       ("rust-thread_local-0.3.4"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "num-traits" "0.1.36"))
+           (uri (crate-uri "thread_local" "0.3.4"))
            (sha256
-            (base32
-             "07688sp4z40p14lh5ywvrpm4zq8kcxzhjks8sg33jsr5da2l4sm1"))))
-       ("rust-num-integer"
+            (base16-string->bytevector
+             
"1697c4b57aeeb7a536b647165a2825faddffb1d3bad386d507709bd51a90bb14"))))
+       ("rust-toml"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "num-integer" "0.1.32"))
+           (uri (crate-uri "toml" "0.4.5"))
            (sha256
-            (base32
-             "14pvaaawl0pgdcgh4dfdd67lz58yxlfl95bry86h28pjnfzxj97v"))))
-       ("rust-num-bigint"
+            (base16-string->bytevector
+             
"a7540f4ffc193e0d3c94121edb19b055670d369f77d5804db11ae053a45b6e7e"))))
+       ("rust-unicode-bidi"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "num-bigint" "0.1.35"))
+           (uri (crate-uri "unicode-bidi" "0.3.4"))
            (sha256
-            (base32
-             "0jayfkdm33p4zvcahlv46zdfhlzg053mpw32abf2lz0z8xw47cc8"))))
-       ("rust-num-rational"
+            (base16-string->bytevector
+             
"49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"))))
+       ("rust-unicode-normalization"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "num-rational" "0.1.35"))
+           (uri (crate-uri "unicode-normalization" "0.1.5"))
            (sha256
-            (base32
-             "1bwaygv64qg7i78yqg0v4d0amfhamj598rpy4yxjz9rlhcxn1zsl"))))
-       ("rust-num-iter"
+            (base16-string->bytevector
+             
"51ccda9ef9efa3f7ef5d91e8f9b83bbe6955f9bf86aec89d5cce2c874625920f"))))
+       ("rust-unicode-xid"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "num-iter" "0.1.32"))
+           (uri (crate-uri "unicode-xid" "0.0.4"))
            (sha256
-            (base32
-             "0p74nj5c1mc33h9lx4wpmlmggmn5lnkhxv1225g0aix8d6ciqyi8"))))
-       ("rust-num-complex"
+            (base16-string->bytevector
+             
"8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"))))
+       ("rust-unreachable"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "num-complex" "0.1.35"))
+           (uri (crate-uri "unreachable" "1.0.0"))
            (sha256
-            (base32
-             "0bzrjfppnnzf9vmkpklhp2dw9sb1lqzydb8r6k83z76i9l2qxizh"))))
-       ("rust-shell-escape"
+            (base16-string->bytevector
+             
"382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"))))
+       ("rust-url"
         ,(origin
            (method url-fetch)
-           (uri (crate-uri "shell-escape" "0.1.3"))
+           (uri (crate-uri "url" "1.5.1"))
+           (sha256
+            (base16-string->bytevector
+             
"eeb819346883532a271eb626deb43c4a1bb4c4dd47c519bd78137c3e72a4fe27"))))
+       ("rust-userenv-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "userenv-sys" "0.2.0"))
+           (sha256
+            (base16-string->bytevector
+             
"71d28ea36bbd9192d75bd9fa9b39f96ddb986eaee824adae5d53b6e51919b2f3"))))
+       ("rust-utf8-ranges"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "utf8-ranges" "0.1.3"))
+           (sha256
+            (base16-string->bytevector
+             
"a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"))))
+       ("rust-utf8-ranges-1.0.0"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "utf8-ranges" "1.0.0"))
+           (sha256
+            (base16-string->bytevector
+             
"662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"))))
+       ("rust-vcpkg"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "vcpkg" "0.2.2"))
+           (sha256
+            (base16-string->bytevector
+             
"9e0a7d8bed3178a8fb112199d466eeca9ed09a14ba8ad67718179b4fd5487d0b"))))
+       ("rust-void"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "void" "1.0.2"))
+           (sha256
+            (base16-string->bytevector
+             
"6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"))))
+       ("rust-walkdir"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "walkdir" "1.0.7"))
+           (sha256
+            (base16-string->bytevector
+             
"bb08f9e670fab86099470b97cd2b252d6527f0b3cc1401acdb595ffc9dd288ff"))))
+       ("rust-winapi"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "winapi" "0.2.8"))
            (sha256
-            (base32
-             "1y2fp2brv639icv4a0fdqs1zhlrxq8qbz27ygfa86ifmh5jcjp6x"))))))
+            (base16-string->bytevector
+             
"167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"))))
+       ("rust-winapi-build"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "winapi-build" "0.1.1"))
+           (sha256
+            (base16-string->bytevector
+             
"2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"))))
+       ("rust-wincolor"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "wincolor" "0.1.4"))
+           (sha256
+            (base16-string->bytevector
+             
"a39ee4464208f6430992ff20154216ab2357772ac871d994c51628d60e58b8b0"))))
+       ("rust-ws2_32-sys"
+        ,(origin
+           (method url-fetch)
+           (uri (crate-uri "ws2_32-sys" "0.2.1"))
+           (sha256
+            (base16-string->bytevector
+             
"d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"))))))
     (arguments
      `(#:cargo ,cargo-bootstrap
-       #:tests? #f ; FIXME
+       #:rustc ,rustc ; Force to use rustc from current file
        #:modules
        ((ice-9 match)
         (srfi srfi-1) ; 'every
@@ -853,12 +1255,8 @@ safety and thread safety guarantees.")
         (guix build cargo-build-system))
        #:phases
        (modify-phases %standard-phases
-         ;; Avoid cargo complaining about missmatched checksums.
-         (delete 'patch-source-shebangs)
-         (delete 'patch-generated-file-shebangs)
-         (delete 'patch-usr-bin-file)
-         (add-after 'unpack 'unpack-submodule-sources
-           (lambda* (#:key inputs #:allow-other-keys)
+         (add-after 'unpack 'unpack-dependencies
+           (lambda* (#:key inputs outputs #:allow-other-keys)
              (define (unpack source target)
                (mkdir-p target)
                (with-directory-excursion target
@@ -871,37 +1269,56 @@ safety and thread safety guarantees.")
                (match entry
                  ((name . src)
                   (if (string-prefix? "rust-" name)
-                    (let* ((rust-length (string-length "rust-"))
-                           (rust-name (string-drop name
-                                                   rust-length))
-                           (rsrc (string-append "vendor/"
-                                                rust-name))
-                           (unpack-status (unpack src rsrc)))
-                      (touch (string-append rsrc "/.cargo-ok"))
-                      (generate-checksums rsrc src)
-                      unpack-status)))
+                      (let* ((rust-length (string-length "rust-"))
+                             (rust-name (string-drop name rust-length))
+                             (rsrc (string-append "vendor/" rust-name))
+                             (unpack-status (unpack src rsrc)))
+                        (touch (string-append rsrc "/.cargo-ok"))
+                        (generate-checksums rsrc src)
+                        unpack-status)))
                  (_ #t)))
-               (mkdir "vendor")
-               (every install-rust-library inputs)))
-         (add-after 'unpack 'set-environment-up
+             (mkdir "vendor")
+             (every install-rust-library inputs)))
+         (add-after 'patch-generated-file-shebangs 'patch-cargo-checksums
            (lambda* (#:key inputs #:allow-other-keys)
-             (let* ((gcc (assoc-ref inputs "gcc"))
-                    (cc (string-append gcc "/bin/gcc")))
-               (mkdir ".cargo")
-               (call-with-output-file ".cargo/config"
-                 (lambda (p)
-                   (format p "
+             (substitute* "Cargo.lock"
+               (("(\"checksum .* = )\".*\"" all name)
+                (string-append name "\"" ,%cargo-reference-hash "\"")))
+             (for-each
+              (lambda (filename)
+                (use-modules (guix build cargo-build-system))
+                (delete-file filename)
+                (let* ((dir (dirname filename)))
+                  (display (string-append
+                            "patch-cargo-checksums: generate-checksums for "
+                            dir "\n"))
+                  (generate-checksums dir ,%cargo-reference-project-file)))
+              (find-files "vendor" ".cargo-checksum.json"))))
+         (replace 'configure
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (substitute* "tests/build.rs"
+               (("/usr/bin/env") (which "env"))
+               ;; Guix llvm compiled without asmjs-unknown-emscripten at all
+               (("fn wasm32_final_outputs") "#[ignore]\nfn 
wasm32_final_outputs"))
+             (substitute* "tests/death.rs"
+               ;; Stuck when built in container
+               (("fn ctrl_c_kills_everyone") "#[ignore]\nfn 
ctrl_c_kills_everyone"))
+             (mkdir ".cargo")
+             (call-with-output-file ".cargo/config"
+               (lambda (port)
+                 (display "
 [source.crates-io]
 registry = 'https://github.com/rust-lang/crates.io-index'
 replace-with = 'vendored-sources'
 
 [source.vendored-sources]
 directory = 'vendor'
-")))
-               (setenv "CMAKE_C_COMPILER" cc)
-               (setenv "CC" cc))
-             #t))
-         (delete 'configure))))
+" port)))
+             ;; Disable test for cross compilation support
+             (setenv "CFG_DISABLE_CROSS_TESTS" "1")
+             (setenv "SHELL" (which "sh"))
+             (setenv "CONFIG_SHELL" (which "sh"))
+             (setenv "CC" (string-append (assoc-ref inputs "gcc") 
"/bin/gcc")))))))
     (home-page "https://github.com/rust-lang/cargo";)
     (synopsis "Build tool and package manager for Rust")
     (description "Cargo is a tool that allows Rust projects to declare their
-- 
2.15.0


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