fix: Nomarlize the relative path for bin target

Author: linyihai

src/cargo/util/toml/targets.rs

@@ -15,6 +15,7 @@ use std::fs::{self, DirEntry};
 use std::path::{Path, PathBuf};
 
 use anyhow::Context as _;
+use cargo_util::paths;
 use cargo_util_schemas::manifest::{
     PathValue, StringOrBool, StringOrVec, TomlBenchTarget, TomlBinTarget, TomlExampleTarget,
     TomlLibTarget, TomlManifest, TomlTarget, TomlTestTarget,
@@ -315,7 +316,9 @@ fn to_bin_targets(
 
     let mut result = Vec::new();
     for bin in bins {
-        let path = package_root.join(&bin.path.as_ref().expect("previously normalized").0);
+        let path = package_root.join(paths::normalize_path(
+            &bin.path.as_ref().expect("previously normalized").0,
+        ));
         let mut target = Target::bin_target(
             name_or_panic(bin),
             bin.filename.clone(),

tests/testsuite/binary_name.rs

@@ -372,7 +372,7 @@ fn bin_target_with_relative_path() {
         .with_stderr_data(str![[r#"
 [CHECKING] relative-bar v0.1.0 ([ROOT]/foo/relative-bar)
 [WARNING] unused variable: `a`
- --> relative-bar/./src/main.rs:1:17
+ --> relative-bar/src/main.rs:1:17
   |
 1 | fn main() { let a = 1; }
   |                 ^ [HELP] if this is intentional, prefix it with an underscore: `_a`