Don't include the ', in compilation highlighting

It's more distracting than helpful.

Author: RadicalZephyr

rust-compile.el

@@ -37,8 +37,8 @@ See `compilation-error-regexp-alist' for help on their format.")
 ;; Match test run failures and panics during compilation as
 ;; compilation warnings
 (defvar cargo-compilation-regexps
-  '("', \\([^:]+\\):\\([0-9]+\\)"
-    1 2 nil nil 0)
+  '("', \\(\\([^:]+\\):\\([0-9]+\\)\\)"
+    2 3 nil nil 1)
   "Specifications for matching panics in cargo test invocations.
 See `compilation-error-regexp-alist' for help on their format.")