Fix unknown-crate when using self-profile with rustdoc

... by removing a duplicate `crate_name` field in `interface::Config`,
making it clear that rustdoc should be passing it to `config::Options`
instead.

compiler/rustc_driver/src/lib.rs

@@ -223,7 +223,6 @@ fn run_compiler(
             file_loader: None,
             diagnostic_output,
             stderr: None,
-            crate_name: None,
             lint_caps: Default::default(),
             register_lints: None,
             override_queries: None,
@@ -307,7 +306,6 @@ fn run_compiler(
         file_loader,
         diagnostic_output,
         stderr: None,
-        crate_name: None,
         lint_caps: Default::default(),
         register_lints: None,
         override_queries: None,

compiler/rustc_interface/src/interface.rs

@@ -34,7 +34,6 @@ pub struct Compiler {
     pub(crate) input_path: Option<PathBuf>,
     pub(crate) output_dir: Option<PathBuf>,
     pub(crate) output_file: Option<PathBuf>,
-    pub(crate) crate_name: Option<String>,
     pub(crate) register_lints: Option<Box<dyn Fn(&Session, &mut LintStore) + Send + Sync>>,
     pub(crate) override_queries:
         Option<fn(&Session, &mut ty::query::Providers, &mut ty::query::Providers)>,
@@ -140,7 +139,6 @@ pub struct Config {
     /// Set to capture stderr output during compiler execution
     pub stderr: Option<Arc<Mutex<Vec<u8>>>>,
 
-    pub crate_name: Option<String>,
     pub lint_caps: FxHashMap<lint::LintId, lint::Level>,
 
     /// This is a callback from the driver that is called when we're registering lints;
@@ -185,7 +183,6 @@ pub fn create_compiler_and_run<R>(config: Config, f: impl FnOnce(&Compiler) -> R
         input_path: config.input_path,
         output_dir: config.output_dir,
         output_file: config.output_file,
-        crate_name: config.crate_name,
         register_lints: config.register_lints,
         override_queries: config.override_queries,
     };

compiler/rustc_interface/src/queries.rs

@@ -156,13 +156,11 @@ impl<'tcx> Queries<'tcx> {
 
     pub fn crate_name(&self) -> Result<&Query<String>> {
         self.crate_name.compute(|| {
-            Ok(match self.compiler.crate_name {
-                Some(ref crate_name) => crate_name.clone(),
-                None => {
-                    let parse_result = self.parse()?;
-                    let krate = parse_result.peek();
-                    find_crate_name(self.session(), &krate.attrs, &self.compiler.input)
-                }
+            Ok({
+                let parse_result = self.parse()?;
+                let krate = parse_result.peek();
+                // parse `#[crate_name]` even if `--crate-name` was passed, to make sure it matches.
+                find_crate_name(self.session(), &krate.attrs, &self.compiler.input)
             })
         })
     }

compiler/rustc_session/src/session.rs

@@ -1338,7 +1338,7 @@ pub fn build_session(
 
         let profiler = SelfProfiler::new(
             directory,
-            sopts.crate_name.as_ref().map(|s| &s[..]),
+            sopts.crate_name.as_deref(),
             &sopts.debugging_opts.self_profile_events,
         );
         match profiler {

src/librustdoc/core.rs

@@ -371,6 +371,7 @@ crate fn run_core(
         error_format,
         edition,
         describe_lints,
+        crate_name,
         ..Options::default()
     };
 
@@ -384,7 +385,6 @@ crate fn run_core(
         file_loader: None,
         diagnostic_output: DiagnosticOutput::Default,
         stderr: None,
-        crate_name,
         lint_caps,
         register_lints: None,
         override_queries: Some(|_sess, providers, _external_providers| {

src/librustdoc/doctest.rs

@@ -74,6 +74,7 @@ crate fn run(options: Options) -> Result<(), ErrorReported> {
         debugging_opts: config::DebuggingOptions { ..config::basic_debugging_options() },
         edition: options.edition,
         target_triple: options.target.clone(),
+        crate_name: options.crate_name.clone(),
         ..config::Options::default()
     };
 
@@ -90,7 +91,6 @@ crate fn run(options: Options) -> Result<(), ErrorReported> {
         file_loader: None,
         diagnostic_output: DiagnosticOutput::Default,
         stderr: None,
-        crate_name: options.crate_name.clone(),
         lint_caps,
         register_lints: None,
         override_queries: None,

src/test/run-make-fulldeps/issue-19371/foo.rs

@@ -56,7 +56,6 @@ fn compile(code: String, output: PathBuf, sysroot: PathBuf) {
         file_loader: None,
         diagnostic_output: DiagnosticOutput::Default,
         stderr: None,
-        crate_name: None,
         lint_caps: Default::default(),
         register_lints: None,
         override_queries: None,