Update two tests for changes in rustc output

Author: petrochenkov

tests/testsuite/check.rs

@@ -367,7 +367,7 @@ fn rustc_check_err() {
         .with_status(101)
         .with_stderr_contains("[CHECKING] bar [..]")
         .with_stderr_contains("[CHECKING] foo [..]")
-        .with_stderr_contains("[..]cannot find function `qux` in module `bar`")
+        .with_stderr_contains("[..]cannot find function `qux` in [..] `bar`")
         .run();
 }
 

tests/testsuite/metabuild.rs

@@ -733,7 +733,7 @@ fn metabuild_failed_build_json() {
     "children": "{...}",
     "code": "{...}",
     "level": "error",
-    "message": "cannot find function `metabuild` in module `mb`",
+    "message": "cannot find function `metabuild` in [..] `mb`",
     "rendered": "[..]",
     "spans": "{...}"
   },