test: Update to snapshot style.

Author: torhovland

tests/testsuite/warn_on_failure.rs

@@ -86,13 +86,19 @@ fn no_warning_on_bin_failure() {
         .cargo("build")
         .with_status(101)
         .with_stdout_does_not_contain("hidden stdout")
-        .with_stderr_does_not_contain("hidden stderr")
-        .with_stderr_does_not_contain(&format!("[WARNING] {}", WARNING1))
-        .with_stderr_does_not_contain(&format!("[WARNING] {}", WARNING2))
-        .with_stderr_contains("[UPDATING] `[..]` index")
-        .with_stderr_contains("[DOWNLOADED] bar v0.0.1 ([..])")
-        .with_stderr_contains("[COMPILING] bar v0.0.1")
-        .with_stderr_contains("[COMPILING] foo v0.0.1 ([..])")
+        .with_stderr_data(str![[r#"
+[UPDATING] `dummy-registry` index
+[LOCKING] 2 packages to latest compatible versions
+[DOWNLOADING] crates ...
+[DOWNLOADED] bar v0.0.1 (registry `dummy-registry`)
+[COMPILING] bar v0.0.1
+[COMPILING] foo v0.0.1 ([ROOT]/foo)
+error[E0425]: cannot find function `hi` in this scope
+...
+For more information about this error, try `rustc --explain E0425`.
+[ERROR] could not compile `foo` (bin "foo") due to 1 previous error
+
+"#]])
         .run();
 }
 
@@ -105,12 +111,21 @@ fn warning_on_lib_failure() {
         .cargo("build")
         .with_status(101)
         .with_stdout_does_not_contain("hidden stdout")
-        .with_stderr_does_not_contain("hidden stderr")
-        .with_stderr_does_not_contain("[COMPILING] foo v0.0.1 ([..])")
-        .with_stderr_contains("[UPDATING] `[..]` index")
-        .with_stderr_contains("[DOWNLOADED] bar v0.0.1 ([..])")
-        .with_stderr_contains("[COMPILING] bar v0.0.1")
-        .with_stderr_contains(&format!("[WARNING] [email protected]: {}", WARNING1))
-        .with_stderr_contains(&format!("[WARNING] [email protected]: {}", WARNING2))
+        .with_stderr_data(str![[r#"
+[UPDATING] `dummy-registry` index
+[LOCKING] 2 packages to latest compatible versions
+[DOWNLOADING] crates ...
+[DOWNLOADED] bar v0.0.1 (registry `dummy-registry`)
+[COMPILING] bar v0.0.1
+error[E0425]: cannot find function `err` in this scope
+...
+The following warnings were emitted during compilation:
+
+[WARNING] [email protected]: Hello! I'm a warning. :)
+[WARNING] [email protected]: And one more!
+
+[ERROR] could not compile `bar` (lib) due to 1 previous error
+
+"#]])
         .run();
 }