rust-changes.diff

diff --git a/compiler/rustc_driver/Cargo.toml b/compiler/rustc_driver/Cargo.toml
index ae9712ad66d..81a113fe3f8 100644
--- a/compiler/rustc_driver/Cargo.toml
+++ b/compiler/rustc_driver/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.0.0"
 edition = "2021"
 
 [lib]
-crate-type = ["dylib"]
+#crate-type = ["dylib"]
 
 [dependencies]
 # tidy-alphabetical-start
diff --git a/compiler/rustc_errors/src/styled_buffer.rs b/compiler/rustc_errors/src/styled_buffer.rs
index 9aa14e1f214..cf09251c8d0 100644
--- a/compiler/rustc_errors/src/styled_buffer.rs
+++ b/compiler/rustc_errors/src/styled_buffer.rs
@@ -29,7 +29,8 @@ pub fn new() -> StyledBuffer {
     /// Returns content of `StyledBuffer` split by lines and line styles
     pub fn render(&self) -> Vec<Vec<StyledString>> {
         // Tabs are assumed to have been replaced by spaces in calling code.
-        debug_assert!(self.lines.iter().all(|r| !r.iter().any(|sc| sc.chr == '\t')));
+        // Commented out for fuzzing until https://github.com/rust-lang/rust/issues/81614 is fixed
+        // debug_assert!(self.lines.iter().all(|r| !r.iter().any(|sc| sc.chr == '\t')));
 
         let mut output: Vec<Vec<StyledString>> = vec![];
         let mut styled_vec: Vec<StyledString> = vec![];
diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs
index 22d12793464..1a03e2b2098 100644
--- a/compiler/rustc_interface/src/util.rs
+++ b/compiler/rustc_interface/src/util.rs
@@ -32,6 +32,9 @@
 /// This is performed by checking whether a set of permitted features
 /// is available on the target machine, by querying the codegen backend.
 pub fn add_configuration(cfg: &mut Cfg, sess: &mut Session, codegen_backend: &dyn CodegenBackend) {
+    //commented out for fuzzing because this leaks memory
+    /* 
+
     let tf = sym::target_feature;
 
     let unstable_target_features = codegen_backend.target_features(sess, true);
@@ -45,6 +48,8 @@ pub fn add_configuration(cfg: &mut Cfg, sess: &mut Session, codegen_backend: &dy
     if sess.crt_static(None) {
         cfg.insert((tf, Some(sym::crt_dash_static)));
     }
+
+    */
 }
 
 const STACK_SIZE: usize = 8 * 1024 * 1024;
diff --git a/compiler/rustc_middle/src/ty/error.rs b/compiler/rustc_middle/src/ty/error.rs
index 738bb5e8b19..9ad4295b9ff 100644
--- a/compiler/rustc_middle/src/ty/error.rs
+++ b/compiler/rustc_middle/src/ty/error.rs
@@ -370,9 +370,8 @@ pub fn short_ty_string(self, ty: Ty<'tcx>) -> (String, Option<PathBuf>) {
         ty.hash(&mut s);
         let hash = s.finish();
         let path = self.output_filenames(()).temp_path_ext(&format!("long-type-{hash}.txt"), None);
-        match std::fs::write(&path, &regular) {
-            Ok(_) => (short, Some(path)),
-            Err(_) => (regular, None),
-        }
+
+        // For fuzzing: don't actually write the file
+        (short, Some(path))
     }
 }