Make Errored debug rendering readable

src/test_result.rs

@@ -1,6 +1,7 @@
 //! Various data structures used for carrying information about test success or failure
 
 use crate::{status_emitter::TestStatus, AbortCheck, Error};
+use bstr::ByteSlice;
 use color_eyre::eyre::Result;
 
 /// The possible non-failure results a single test can have.
@@ -16,7 +17,6 @@ pub enum TestOk {
 pub type TestResult = Result<TestOk, Errored>;
 
 /// Information about a test failure.
-#[derive(Debug)]
 pub struct Errored {
     /// Command that failed
     pub(crate) command: String,
@@ -28,6 +28,16 @@ pub struct Errored {
     pub(crate) stdout: Vec<u8>,
 }
 
+impl std::fmt::Debug for Errored {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        writeln!(f, "command: {}", self.command)?;
+        writeln!(f, "errors: {:#?}", self.errors)?;
+        writeln!(f, "stderr: {}", self.stderr.to_str_lossy())?;
+        writeln!(f, "stdout: {}", self.stdout.to_str_lossy())?;
+        Ok(())
+    }
+}
+
 impl Errored {
     /// If no command was executed for this error, use a message instead.
     pub fn new(errors: Vec<Error>, message: &str) -> Self {