use utf8 lossy

README.md

@@ -96,3 +96,19 @@ SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior solution.cpp:15:8
 */
 // which is what leetcode gives you
 ```
+
+Better logging: https://docs.aws.amazon.com/lambda/latest/dg/rust-logging.html
+
+utf8 encoding regression test:
+
+```
+// Source: https://usaco.guide/general/io
+
+#include <bits/stdc++.h>
+using namespace std;
+
+int main() {
+	char c = 128;
+	cout << c << endl;
+}
+```

src/run_command.rs

@@ -116,7 +116,7 @@ pub fn run_command(
 
     let process = process.wait_with_output()?;
 
-    let timing_output = parse_timing_stderr(str::from_utf8(&process.stderr)?)?;
+    let timing_output = parse_timing_stderr(String::from_utf8_lossy(&process.stderr).as_ref())?;
 
     Ok(CommandOutput {
         exit_code: process.status.into_raw(),
@@ -125,7 +125,7 @@ pub fn run_command(
                 signal.to_string()
             })
         }),
-        stdout: str::from_utf8(&process.stdout)?.to_string(),
+        stdout: String::from_utf8_lossy(&process.stdout).into_owned(),
         stderr: timing_output.stderr,
         wall_time: timing_output.wall_time,
         memory_usage: timing_output.memory_usage,