Revert "Reproduce #14076"

This reverts commit 18f4c3f.

Author: choznerol

tests/testsuite/check_cfg.rs

@@ -633,9 +633,7 @@ fn config_invalid_empty() {
 
     p.cargo("check")
         .with_status(101)
-        .with_stderr_contains(
-            "[..]missing field `level`[..] THIS RANDOM SENTENCE SHOULD FAIL THIS TEST BUT DIDN'T",
-        )
+        .with_stderr_contains("[..]missing field `level`[..]")
         .run();
 }
 

tests/testsuite/freshness.rs

@@ -2937,9 +2937,6 @@ fn use_mtime_cache_in_cargo_home() {
         .with_stderr(
             "\
 [DIRTY] foo v0.5.0 ([CWD]): [..]
-
-    THIS RANDOM SENTENCE SHOULD FAIL THIS TEST BUT DIDN'T
-
 [CHECKING] foo v0.5.0 ([CWD])
 [RUNNING] `rustc --crate-name foo --edition=2015 src/lib.rs [..]",
         )

tests/testsuite/help.rs

@@ -148,8 +148,7 @@ fn help_alias() {
     cargo_process("help empty-alias")
         .env("PATH", Path::new(""))
         .with_status(101)
-        .with_stderr_contains("THIS RANDOM SENTENCE SHOULD FAIL THIS TEST BUT DIDN'T [..] The subcommand 'empty-alias' wasn't recognized [..]",
-        )
+        .with_stderr_contains("[..]The subcommand 'empty-alias' wasn't recognized[..]")
         .run();
 
     // Because `simple-alias` aliases a subcommand with no arguments, help shows the manpage.