3 files changed, 9 insertions, 8 deletions
diff --git a/compiler/rustc_incremental/src/persist/dirty_clean.rs b/compiler/rustc_incremental/src/persist/dirty_clean.rs
index 79e2d371e..a8acaf659 100644
--- a/compiler/rustc_incremental/src/persist/dirty_clean.rs
+++ b/compiler/rustc_incremental/src/persist/dirty_clean.rs
@@ -438,9 +438,9 @@ fn expect_associated_value(tcx: TyCtxt<'_>, item: &NestedMetaItem) -> Symbol {
     }
 }
 
-// A visitor that collects all #[rustc_clean] attributes from
-// the HIR. It is used to verify that we really ran checks for all annotated
-// nodes.
+/// A visitor that collects all `#[rustc_clean]` attributes from
+/// the HIR. It is used to verify that we really ran checks for all annotated
+/// nodes.
 pub struct FindAllAttrs<'tcx> {
     tcx: TyCtxt<'tcx>,
     found_attrs: Vec<&'tcx Attribute>,
diff --git a/compiler/rustc_incremental/src/persist/fs.rs b/compiler/rustc_incremental/src/persist/fs.rs
index 25c1b2e1c..97ebed058 100644
--- a/compiler/rustc_incremental/src/persist/fs.rs
+++ b/compiler/rustc_incremental/src/persist/fs.rs
@@ -109,6 +109,7 @@ use rustc_data_structures::{base_n, flock};
 use rustc_errors::ErrorGuaranteed;
 use rustc_fs_util::{link_or_copy, LinkOrCopy};
 use rustc_session::{Session, StableCrateId};
+use rustc_span::Symbol;
 
 use std::fs as std_fs;
 use std::io::{self, ErrorKind};
@@ -202,7 +203,7 @@ pub fn in_incr_comp_dir(incr_comp_session_dir: &Path, file_name: &str) -> PathBu
 /// [`rustc_interface::queries::dep_graph`]: ../../rustc_interface/struct.Queries.html#structfield.dep_graph
 pub fn prepare_session_directory(
     sess: &Session,
-    crate_name: &str,
+    crate_name: Symbol,
     stable_crate_id: StableCrateId,
 ) -> Result<(), ErrorGuaranteed> {
     if sess.opts.incremental.is_none() {
@@ -322,7 +323,7 @@ pub fn finalize_session_directory(sess: &Session, svh: Svh) {
 
     let incr_comp_session_dir: PathBuf = sess.incr_comp_session_dir().clone();
 
-    if sess.has_errors_or_delayed_span_bugs() {
+    if let Some(_) = sess.has_errors_or_delayed_span_bugs() {
         // If there have been any errors during compilation, we don't want to
         // publish this session directory. Rather, we'll just delete it.
 
@@ -657,7 +658,7 @@ fn string_to_timestamp(s: &str) -> Result<SystemTime, ()> {
     Ok(UNIX_EPOCH + duration)
 }
 
-fn crate_path(sess: &Session, crate_name: &str, stable_crate_id: StableCrateId) -> PathBuf {
+fn crate_path(sess: &Session, crate_name: Symbol, stable_crate_id: StableCrateId) -> PathBuf {
     let incr_dir = sess.opts.incremental.as_ref().unwrap().clone();
 
     let stable_crate_id = base_n::encode(stable_crate_id.to_u64() as u128, INT_ENCODE_BASE);
diff --git a/compiler/rustc_incremental/src/persist/save.rs b/compiler/rustc_incremental/src/persist/save.rs
index 710350314..6e9dcdd98 100644
--- a/compiler/rustc_incremental/src/persist/save.rs
+++ b/compiler/rustc_incremental/src/persist/save.rs
@@ -28,7 +28,7 @@ pub fn save_dep_graph(tcx: TyCtxt<'_>) {
             return;
         }
         // This is going to be deleted in finalize_session_directory, so let's not create it
-        if sess.has_errors_or_delayed_span_bugs() {
+        if let Some(_) = sess.has_errors_or_delayed_span_bugs() {
             return;
         }
 
@@ -89,7 +89,7 @@ pub fn save_work_product_index(
         return;
     }
     // This is going to be deleted in finalize_session_directory, so let's not create it
-    if sess.has_errors_or_delayed_span_bugs() {
+    if let Some(_) = sess.has_errors_or_delayed_span_bugs() {
         return;
     }