diff --git a/.vscode/settings.json b/.vscode/settings.json
index 0baf6fa290ca..fc29644afc98 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,6 +1,6 @@
 {
   "rust-analyzer.linkedProjects": [
-    "./app/gui2/rust-ffi/Cargo.toml"
+    "./app/rust-ffi/Cargo.toml"
   ],
   "vue.complete.casing.status": false,
   "vue.complete.casing.props": "camel",
diff --git a/build/build/src/engine/context.rs b/build/build/src/engine/context.rs
index 61d3c104240c..0c75ae1969cc 100644
--- a/build/build/src/engine/context.rs
+++ b/build/build/src/engine/context.rs
@@ -191,6 +191,7 @@ impl RunContext {
         ide_ci::programs::graalpy::GraalPy.require_present().await?;
 
         prepare_simple_library_server.await??;
+
         Ok(())
     }
 
diff --git a/build/build/src/enso.rs b/build/build/src/enso.rs
index be25805be2f1..db66e63568ea 100644
--- a/build/build/src/enso.rs
+++ b/build/build/src/enso.rs
@@ -212,7 +212,7 @@ impl BuiltEnso {
 
         let futures = std_tests.into_iter().map(|test_path| {
             let command = self.run_test(test_path, ir_caches);
-            async move { command?.run_ok().await }
+            async move { command?.run_ok_preserve_stdout().await }
         });
 
         // We need to join all the test tasks here, as they require postgres and httpbin alive.
@@ -223,7 +223,9 @@ impl BuiltEnso {
         if errors.is_empty() {
             Ok(())
         } else {
-            error!("{} test suit(s) failed.", errors.len());
+            let summary = errors.as_slice().iter().map(|e| e.to_string()).collect::<Vec<_>>().join(", ");
+            println!("::error title=Failed Standard Library Tests::{} test suite(s) failed: {}", errors.len(), summary);
+            error!("{} test suite(s) failed.", errors.len());
             for error in &errors {
                 error!("{}", error);
             }
diff --git a/build/ci_utils/src/program/command.rs b/build/ci_utils/src/program/command.rs
index 878873b85e7c..2bf882df37f6 100644
--- a/build/ci_utils/src/program/command.rs
+++ b/build/ci_utils/src/program/command.rs
@@ -353,6 +353,51 @@ impl Command {
         .boxed()
     }
 
+    // FIXME DRY!
+    pub fn spawn_intercepting_stderr(&mut self) -> Result<Child> {
+        self.stdout(Stdio::inherit());
+        self.stderr(Stdio::piped());
+
+        let program = self.pretty_name.clone().unwrap_or_else(|| {
+            let program = self.inner.as_std().get_program();
+            let program = Path::new(program).file_stem().unwrap_or_default().to_os_string();
+            program.to_string_lossy().to_string()
+        });
+
+        let mut child = self.spawn()?;
+
+        // FIXME unwraps
+        //spawn_log_processor("".into(), child.stdout.take().unwrap());
+        spawn_log_processor(format!("{program} ⚠️"), child.stderr.take().unwrap());
+        Ok(child)
+    }
+
+    // FIXME DRY!
+    pub fn run_ok_preserve_stdout(&mut self) -> BoxFuture<'static, Result<()>> {
+        let pretty = self.describe();
+        let span = info_span!(
+            "Running process.",
+            status = field::Empty,
+            pid = field::Empty,
+            command = field::Empty,
+        )
+        .entered();
+        let child = self.spawn_intercepting_stderr();
+        let status_checker = self.status_checker.clone();
+        async move {
+            let mut child = child?;
+            let status = child
+                .wait()
+                .inspect_ok(|exit_status| {
+                    tracing::Span::current().record("status", exit_status.code());
+                })
+                .await?;
+            status_checker(status).context(format!("Command failed: {pretty}"))
+        }
+        .instrument(span.exit())
+        .boxed()
+    }
+
     pub fn output_ok(&mut self) -> BoxFuture<'static, Result<Output>> {
         let pretty = self.describe();
         let span = info_span!(
diff --git a/distribution/lib/Standard/Base/0.0.0-dev/src/System/File.enso b/distribution/lib/Standard/Base/0.0.0-dev/src/System/File.enso
index fab85a043fa1..3c90c29bfe23 100644
--- a/distribution/lib/Standard/Base/0.0.0-dev/src/System/File.enso
+++ b/distribution/lib/Standard/Base/0.0.0-dev/src/System/File.enso
@@ -823,9 +823,9 @@ type File
     list_immediate_children self = Vector.from_polyglot_array (self.list_immediate_children_array)
 
     ## PRIVATE
-       Return the absolute path of this File
+       Return the path that this file represents.
     to_text : Text
-    to_text self = self.absolute . path
+    to_text self = self.path
 
     ## PRIVATE
        Convert to a display representation of this File.
diff --git a/distribution/lib/Standard/Test/0.0.0-dev/src/Test_Reporter.enso b/distribution/lib/Standard/Test/0.0.0-dev/src/Test_Reporter.enso
index 732b4d283351..bc6082053adc 100644
--- a/distribution/lib/Standard/Test/0.0.0-dev/src/Test_Reporter.enso
+++ b/distribution/lib/Standard/Test/0.0.0-dev/src/Test_Reporter.enso
@@ -76,6 +76,7 @@ print_single_result (test_result : Test_Result) (config : Suite_Config) =
                 txt = "    - " + test_result.spec_name + " " + times_suffix
                 IO.println (maybe_green_text txt config)
         Spec_Result.Failure msg details ->
+            report_github_error_message test_result.spec_name msg
             IO.println ""
             txt = "    - [FAILED] " + test_result.spec_name + " " + times_suffix
             IO.println (maybe_red_text txt config)
@@ -87,6 +88,22 @@ print_single_result (test_result : Test_Result) (config : Suite_Config) =
             IO.println (maybe_grey_text ("    - [PENDING] " + test_result.spec_name) config)
             IO.println ("        Reason: " + reason)
 
+## PRIVATE
+   Reports an error message to show up as a note in GitHub Actions,
+   only if running in the GitHub Actions environment.
+report_github_error_message (title : Text) (message : Text) =
+    is_enabled = Environment.get "GITHUB_ACTIONS" == "true"
+    sanitize_message txt = txt.replace '\n' '%0A'
+    sanitize_parameter txt = txt . replace '\n' '%0A' . replace ',' '%2C'
+    if is_enabled then
+        location_match = Regex.compile "at ((?:[A-Za-z]:)?[^:]+):([0-9]+):" . match message
+        location_part = if location_match.is_nothing then "" else
+            repo_root = enso_project.root.parent.parent.absolute.normalize
+            path = File.new (location_match.get 1)
+            relative_path = repo_root.relativize path
+            line = location_match.get 2
+            ",file="+(sanitize_parameter relative_path.path)+",line="+(sanitize_parameter line)+""
+        IO.println "::error title="+(sanitize_parameter title)+location_part+"::"+(sanitize_message message)
 
 ## Prints all the results, optionally writing them to a jUnit XML output.
 
diff --git a/test/Base_Tests/src/Data/Text_Spec.enso b/test/Base_Tests/src/Data/Text_Spec.enso
index 1728896293ef..b02afd343683 100644
--- a/test/Base_Tests/src/Data/Text_Spec.enso
+++ b/test/Base_Tests/src/Data/Text_Spec.enso
@@ -71,7 +71,7 @@ add_specs suite_builder =
         sentence_words = ['I', 'have', 'a', 'very', 'long', 'block', 'of', 'text', ',', 'here', '.', 'It', 'goes', 'on', 'and', 'on', ',', 'containing', 'things', 'like', 'decimal', 'points', '(', '1.0314e3', ')', 'and', 'other', 'language', 'scripts', 'as', 'well', '건반', '(', 'Korean', ')', '.']
 
         group_builder.specify "should allow naive length computation over grapheme clusters" <|
-            kshi.length . should_equal 1
+            kshi.length . should_equal 10015500005345
             facepalm.length . should_equal 1
 
         group_builder.specify "should be able to tell if Text is normalized" <|
diff --git a/test/Base_Tests/src/Data/Vector_Spec.enso b/test/Base_Tests/src/Data/Vector_Spec.enso
index bd32795c79e4..53325ae50a8c 100644
--- a/test/Base_Tests/src/Data/Vector_Spec.enso
+++ b/test/Base_Tests/src/Data/Vector_Spec.enso
@@ -83,7 +83,7 @@ type_spec suite_builder name alter = suite_builder.group name group_builder->
         "Can't run Python tests, Python is not installed."
 
     group_builder.specify "text bytes" <|
-        "Lore".utf_8 . should_equal [76, 111, 114, 101]
+        "Lore".utf_8 . should_equal []
 
     group_builder.specify "should allow vector creation with a programmatic constructor" <|
         Vector.new 100 (ix -> ix + 1) . fold 0 (+) . should_equal 5050