test: Migrate remaining with_stdout/with_stderr calls

tests/testsuite/cargo_command.rs

@@ -358,7 +358,6 @@ fn override_cargo_home() {
     assert!(paths::root().join("foo2/.git").is_dir());
 }
 
-#[expect(deprecated)]
 #[cargo_test]
 fn cargo_subcommand_env() {
     let src = format!(
@@ -390,7 +389,7 @@ fn cargo_subcommand_env() {
 
     cargo_process("envtest")
         .env("PATH", &path)
-        .with_stdout(cargo.to_str().unwrap())
+        .with_stdout_data(format!("{}\n", cargo.to_str().unwrap()).raw())
         .run();
 
     // Check that subcommands inherit an overridden $CARGO
@@ -403,7 +402,7 @@ fn cargo_subcommand_env() {
     cargo_process("envtest")
         .env("PATH", &path)
         .env(cargo::CARGO_ENV, &envtest_bin)
-        .with_stdout(envtest_bin)
+        .with_stdout_data(format!("{}\n", envtest_bin).raw().raw())
         .run();
 }
 

tests/testsuite/global_cache_tracker.rs

@@ -993,7 +993,6 @@ fn max_size() {
     }
 }
 
-#[expect(deprecated)]
 #[cargo_test]
 fn max_size_untracked_crate() {
     // When a .crate file exists from an older version of cargo that did not
@@ -1018,7 +1017,10 @@ fn max_size_untracked_crate() {
     // This should scan the directory and populate the db with the size information.
     cargo_process("clean gc -Zgc -v --max-crate-size=100000")
         .masquerade_as_nightly_cargo(&["gc"])
-        .with_stderr("[REMOVED] 0 files")
+        .with_stderr_data(str![[r#"
+[REMOVED] 0 files
+
+"#]])
         .run();
     // Check that it stored the size data.
     let _lock = gctx
@@ -1070,7 +1072,6 @@ fn max_size_untracked_verify(gctx: &GlobalContext) {
     drop(lock);
 }
 
-#[expect(deprecated)]
 #[cargo_test]
 fn max_size_untracked_src_from_use() {
     // When a src directory exists from an older version of cargo that did not
@@ -1095,12 +1096,14 @@ fn max_size_untracked_src_from_use() {
     // Fix the size.
     p.cargo("clean gc -v --max-src-size=10000 -Zgc")
         .masquerade_as_nightly_cargo(&["gc"])
-        .with_stderr("[REMOVED] 0 files")
+        .with_stderr_data(str![[r#"
+[REMOVED] 0 files
+
+"#]])
         .run();
     max_size_untracked_verify(&gctx);
 }
 
-#[expect(deprecated)]
 #[cargo_test]
 fn max_size_untracked_src_from_clean() {
     // When a src directory exists from an older version of cargo that did not
@@ -1111,7 +1114,10 @@ fn max_size_untracked_src_from_clean() {
     // Clean should scan the src and update the db.
     p.cargo("clean gc -v --max-src-size=10000 -Zgc")
         .masquerade_as_nightly_cargo(&["gc"])
-        .with_stderr("[REMOVED] 0 files")
+        .with_stderr_data(str![[r#"
+[REMOVED] 0 files
+
+"#]])
         .run();
     max_size_untracked_verify(&gctx);
 }
@@ -1363,7 +1369,6 @@ fn delete_index_also_deletes_crates() {
     assert_eq!(get_registry_names("cache").len(), 0);
 }
 
-#[expect(deprecated)]
 #[cargo_test]
 fn clean_syncs_missing_files() {
     // When files go missing in the cache, clean operations that need to track
@@ -1417,7 +1422,10 @@ fn clean_syncs_missing_files() {
     // Clean should update the db.
     p.cargo("clean gc -v --max-download-size=1GB -Zgc")
         .masquerade_as_nightly_cargo(&["gc"])
-        .with_stderr("[REMOVED] 0 files")
+        .with_stderr_data(str![[r#"
+[REMOVED] 0 files
+
+"#]])
         .run();
 
     // Verify
@@ -1460,7 +1468,6 @@ fn offline_doesnt_auto_gc() {
     assert_eq!(get_registry_names("cache"), &[] as &[String]);
 }
 
-#[expect(deprecated)]
 #[cargo_test]
 fn can_handle_future_schema() -> anyhow::Result<()> {
     // It should work when a future version of cargo has made schema changes
@@ -1484,7 +1491,10 @@ fn can_handle_future_schema() -> anyhow::Result<()> {
     // Verify it doesn't blow up.
     p.cargo("clean gc --max-download-size=0 -Zgc")
         .masquerade_as_nightly_cargo(&["gc"])
-        .with_stderr("[REMOVED] 4 files, [..] total")
+        .with_stderr_data(str![[r#"
+[REMOVED] [FILE_NUM] files, [FILE_SIZE]B total
+
+"#]])
         .run();
     Ok(())
 }
@@ -1746,9 +1756,9 @@ fn clean_max_git_size() {
 
     p.cargo(&format!("clean gc --max-git-size={threshold} -Zgc -v"))
         .masquerade_as_nightly_cargo(&["gc"])
-        .with_stderr(&format!(
+        .with_stderr_data(&format!(
             "\
-[REMOVING] [ROOT]/home/.cargo/git/checkouts/{db_name}/{first_co_name}
+[REMOVING] [ROOT]/home/.cargo/git/checkouts/bar-[HASH]/{first_co_name}
 [REMOVED] [..]
 "
         ))

tests/testsuite/message_format.rs

@@ -68,9 +68,21 @@ fn cargo_renders() {
 
     p.cargo("check --message-format json-render-diagnostics")
         .with_status(101)
-        .with_stdout(
+        .with_stdout_data(
-            "{\"reason\":\"compiler-artifact\",[..]\n\
+            str![[r#"
-             {\"reason\":\"build-finished\",\"success\":false}",
+[
+  {
+    "reason": "compiler-artifact",
+    "...": "{...}"
+  },
+  {
+    "reason": "build-finished",
+    "success": false
+  }
+]
+"#]]
+            .is_json()
+            .against_jsonlines(),
         )
         .with_stderr_contains(
             "\