starting phase `prepare-install-directories'
Backtrace:
          11 (primitive-load "/gnu/store/fk2ms0qy9lxv1xjz3mr3a5zclcr…")
In ice-9/eval.scm:
   191:35 10 (_ _)
In srfi/srfi-1.scm:
   863:16  9 (every1 #<procedure a68140 at /gnu/store/xhwmxry8kkmq7…> …)
In /gnu/store/xhwmxry8kkmq7897558qmcmfsx8r1z45-module-import/guix/build/gnu-build-system.scm:
   684:27  8 (_ _)
In ice-9/eval.scm:
    619:8  7 (_ #(#(#(#<directory (guile-user) 7d10a0>) ((# . #))) #))
In ice-9/boot-9.scm:
    849:4  6 (with-throw-handler _ _ _)
In ice-9/ports.scm:
   444:17  5 (call-with-input-file _ _ #:binary _ #:encoding _ # _)
In /gnu/store/xhwmxry8kkmq7897558qmcmfsx8r1z45-module-import/guix/build/utils.scm:
   609:26  4 (_ _)
   645:22  3 (_ #<input: ./src/main.cc 15> #<input-output: ./src/mai…>)
In ice-9/rdelim.scm:
   195:24  2 (read-line _ _)
In unknown file:
           1 (%read-line #<input: ./src/main.cc 15>)
In ice-9/boot-9.scm:
   760:25  0 (dispatch-exception _ _ _)

ice-9/boot-9.scm:760:25: In procedure dispatch-exception:
ice-9/boot-9.scm:760:25: Throw to key `decoding-error' with args `("peek-char" "input decoding error" 84 #<input: ./src/main.cc 15>)'.
builder for `/gnu/store/0plpd4ly1vhj849ia5dqwqbrx1g1a6by-eureka-1.21.drv' failed with exit code 1
@ build-failed /gnu/store/0plpd4ly1vhj849ia5dqwqbrx1g1a6by-eureka-1.21.drv - 1 builder for `/gnu/store/0plpd4ly1vhj849ia5dqwqbrx1g1a6by-eureka-1.21.drv' failed with exit code 1
guix build: error: build failed: build of `/gnu/store/0plpd4ly1vhj849ia5dqwqbrx1g1a6by-eureka-1.21.drv' failed

Some deprecated features have been used.  Set the environment
variable GUILE_WARN_DEPRECATED to "detailed" and rerun the
program to get more information.  Set it to "no" to suppress
this message.