[nongnu] elpa/rust-mode 8452093 278/486: put remaining defcustoms into the rust-mode group

[ELPA Syncer]

branch: elpa/rust-mode
commit 845209399c5e3e8138b5361f7fd406c7a22acbad
Author: Nathan Froyd <froydnj@gmail.com>
Commit: Nathan Froyd <froydnj@gmail.com>

    put remaining defcustoms into the rust-mode group
---
 rust-mode.el | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/rust-mode.el b/rust-mode.el
index 60a81f1..346e172 100644
--- a/rust-mode.el
+++ b/rust-mode.el
@@ -187,11 +187,13 @@ function or trait.  When nil, where will be aligned with 
fn or trait."
 (defcustom rust-format-on-save nil
   "Format future rust buffers before saving using rustfmt."
   :type 'boolean
-  :safe #'booleanp)
+  :safe #'booleanp
+  :group 'rust-mode)
 
 (defcustom rust-rustfmt-bin "rustfmt"
   "Path to rustfmt executable."
-  :type 'string)
+  :type 'string
+  :group 'rust-mode)
 
 (defface rust-unsafe-face
   '((t :inherit font-lock-warning-face))