test(trim-paths): not remapped in build script gen'd code

This was discovered in
<https://github.com/rust-lang/rust/issues/111540#issuecomment-2544049895>.

Co-authored-by: Urgau <urgau@numericable.fr>

tests/testsuite/profile_trim_paths.rs

@@ -246,6 +246,78 @@ fn registry_dependency() {
         .run();
 }
 
+#[cargo_test(nightly, reason = "-Zremap-path-scope is unstable")]
+fn registry_dependency_with_build_script_codegen() {
+    Package::new("bar", "0.0.1")
+        .file("Cargo.toml", &basic_manifest("bar", "0.0.1"))
+        .file(
+            "build.rs",
+            r#"
+            fn main() {
+                let out_dir = std::env::var("OUT_DIR").unwrap();
+                let dest = std::path::PathBuf::from(out_dir);
+                std::fs::write(
+                    dest.join("bindings.rs"),
+                    "pub fn my_file() -> &'static str { file!() }",
+                )
+                .unwrap();
+            }
+            "#,
+        )
+        .file(
+            "src/lib.rs",
+            r#"
+            include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
+        "#,
+        )
+        .publish();
+    let p = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [package]
+                name = "foo"
+                version = "0.0.1"
+                edition = "2015"
+
+                [dependencies]
+                bar = "0.0.1"
+
+                [profile.dev]
+                trim-paths = "object"
+           "#,
+        )
+        .file(
+            "src/main.rs",
+            r#"fn main() { println!("{}", bar::my_file()); }"#,
+        )
+        .build();
+
+    p.cargo("run --verbose -Ztrim-paths")
+        .masquerade_as_nightly_cargo(&["-Ztrim-paths"])
+        // Macros should be sanitized
+        .with_stdout_data(str![[r#"
+[ROOT]/foo/target/debug/build/bar-[HASH]/out/bindings.rs
+
+"#]]) // Omit the hash of Source URL
+        .with_stderr_data(str![[r#"
+[UPDATING] `dummy-registry` index
+[LOCKING] 1 package to latest compatible version
+[DOWNLOADING] crates ...
+[DOWNLOADED] bar v0.0.1 (registry `dummy-registry`)
+[COMPILING] bar v0.0.1
+[RUNNING] `rustc --crate-name build_script_build [..]-Zremap-path-scope=object --remap-path-prefix=[ROOT]/home/.cargo/registry/src= --remap-path-prefix=[..]/lib/rustlib/src/rust=/rustc/[..]`
+[RUNNING] `[ROOT]/foo/target/debug/build/bar-[HASH]/build-script-build`
+[RUNNING] `rustc --crate-name bar [..]-Zremap-path-scope=object --remap-path-prefix=[ROOT]/home/.cargo/registry/src= --remap-path-prefix=[..]/lib/rustlib/src/rust=/rustc/[..]`
+[COMPILING] foo v0.0.1 ([ROOT]/foo)
+[RUNNING] `rustc --crate-name foo [..]-Zremap-path-scope=object --remap-path-prefix=[ROOT]/foo=. --remap-path-prefix=[..]/lib/rustlib/src/rust=/rustc/[..]`
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
+[RUNNING] `target/debug/foo[EXE]`
+
+"#]])
+        .run();
+}
+
 #[cargo_test(nightly, reason = "-Zremap-path-scope is unstable")]
 fn git_dependency() {
     let git_project = git::new("bar", |project| {