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-rw-r--r--tvix/nix-compat/src/store_path/mod.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/tvix/nix-compat/src/store_path/mod.rs b/tvix/nix-compat/src/store_path/mod.rs
index c54ed3710123..93a1f0e88924 100644
--- a/tvix/nix-compat/src/store_path/mod.rs
+++ b/tvix/nix-compat/src/store_path/mod.rs
@@ -261,7 +261,8 @@ pub(crate) fn validate_name(s: &(impl AsRef<[u8]> + ?Sized)) -> Result<&str, Err
         unreachable!();
     }
 
-    Ok(str::from_utf8(s).unwrap())
+    // SAFETY: We permit a subset of ASCII, which guarantees valid UTF-8.
+    Ok(unsafe { str::from_utf8_unchecked(s) })
 }
 
 impl fmt::Display for StorePath {