Report correct unsupported crate type for the dummy codegen backend

Author: bjorn3

compiler/rustc_interface/src/util.rs

@@ -388,17 +388,16 @@ impl CodegenBackend for DummyCodegenBackend {
  ) {
  // JUSTIFICATION: TyCtxt no longer available here
  #[allow(rustc::bad_opt_access)]
- if codegen_results
+ if let Some(&crate_type) = codegen_results
  .crate_info
  .crate_types
  .iter()
- .any(|&crate_type| crate_type != CrateType::Rlib)
+ .find(|&&crate_type| crate_type != CrateType::Rlib)
  {
  #[allow(rustc::untranslatable_diagnostic)]
  #[allow(rustc::diagnostic_outside_of_impl)]
  sess.dcx().fatal(format!(
- "crate type {} not supported by the dummy codegen backend",
- codegen_results.crate_info.crate_types[0],
+ "crate type {crate_type} not supported by the dummy codegen backend"
  ));
  }