in src/fs.rs [754:770]
fn run_ls(cwd: &str) {
info!("about to run ls -lFGa in cwd: {}", cwd);
let output = Command::new("ls")
.arg("-l")
.arg("-a")
.arg("-F")
.arg("-G")
.current_dir(cwd)
.output()
.expect("ls failed");
info!("status: {}", output.status);
info!("stdout: {}", String::from_utf8_lossy(&output.stdout));
info!("stderr: {}", String::from_utf8_lossy(&output.stderr));
assert!(output.status.success());
}