Merge #9086

9086: minor: try fixing proc_macro_srv tests r=jonas-schievink a=jonas-schievink

Not entirely sure what's going wrong in #9084, but this might fix it?

bors r+

Co-authored-by: Jonas Schievink <[email protected]>

Author: bors[bot]

crates/proc_macro_srv/src/tests/utils.rs

@@ -16,7 +16,7 @@ pub mod fixtures {
         let name = "proc_macro_test";
         let version = "0.0.0";
         let command = Command::new(toolchain::cargo())
-            .args(&["build", "-p", name, "--message-format", "json"])
+            .args(&["check", "--tests", "--message-format", "json"])
             .output()
             .unwrap()
             .stdout;