From 17004d706a4ba3eda2343bd3144ae2735dd79d75 Mon Sep 17 00:00:00 2001
From: Colin Finck <mail@colinfinck.de>
Date: Tue, 8 Oct 2024 15:26:57 +0200
Subject: [PATCH 1/2] Pass through `--remap-path-prefix` argument.

---
 src/compiler/rust.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/rust.rs b/src/compiler/rust.rs
index c72fdc51b..b05b08550 100644
--- a/src/compiler/rust.rs
+++ b/src/compiler/rust.rs
@@ -1023,7 +1023,7 @@ counted_array!(static ARGS: [ArgInfo<ArgData>; _] = [
     take_arg!("--out-dir", PathBuf, CanBeSeparated('='), OutDir),
     take_arg!("--pretty", OsString, CanBeSeparated('='), NotCompilation),
     take_arg!("--print", OsString, CanBeSeparated('='), NotCompilation),
-    take_arg!("--remap-path-prefix", OsString, CanBeSeparated('='), TooHard),
+    take_arg!("--remap-path-prefix", OsString, CanBeSeparated('='), PassThrough),
     take_arg!("--sysroot", PathBuf, CanBeSeparated('='), TooHardPath),
     take_arg!("--target", ArgTarget, CanBeSeparated('='), Target),
     take_arg!("--unpretty", OsString, CanBeSeparated('='), NotCompilation),

From 9aebab5a13f08812ef91eec0d0c5cd8a6da4280b Mon Sep 17 00:00:00 2001
From: Colin Finck <mail@colinfinck.de>
Date: Tue, 8 Oct 2024 15:29:35 +0200
Subject: [PATCH 2/2] Nothing is TooHard anymore in the Rust world!

---
 src/compiler/rust.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/compiler/rust.rs b/src/compiler/rust.rs
index b05b08550..ec35f85bf 100644
--- a/src/compiler/rust.rs
+++ b/src/compiler/rust.rs
@@ -978,7 +978,6 @@ impl IntoArg for ArgTarget {
 
 ArgData! {
     TooHardFlag,
-    TooHard(OsString),
     TooHardPath(PathBuf),
     NotCompilationFlag,
     NotCompilation(OsString),
@@ -1064,7 +1063,7 @@ fn parse_arguments(arguments: &[OsString], cwd: &Path) -> CompilerArguments<Pars
     for arg in ArgsIter::new(arguments.iter().cloned(), &ARGS[..]) {
         let arg = try_or_cannot_cache!(arg, "argument parse");
         match arg.get_data() {
-            Some(TooHardFlag) | Some(TooHard(_)) | Some(TooHardPath(_)) => {
+            Some(TooHardFlag) | Some(TooHardPath(_)) => {
                 cannot_cache!(arg.flag_str().expect("Can't be Argument::Raw/UnknownFlag",))
             }
             Some(NotCompilationFlag) | Some(NotCompilation(_)) => {