message: Correct target
diff: @@ -364,7 +364,7 @@ fn target_in_environment_contains_lower_case() {
  ];
  for target_key in &target_keys {
  - p.cargo("build -v --target X86_64_unknown_linux_musl")
  + p.cargo("build -v --target x86_64-unknown-linux-musl")
  .env(target_key, "nonexistent-linker")
  .with_status(101)
  .with_stderr_contains(format!(
  