diff options
| -rw-r--r-- | compiler/rustc_serialize/src/opaque.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_serialize/src/opaque.rs b/compiler/rustc_serialize/src/opaque.rs index f9edb073a2d..f35cc08f4fb 100644 --- a/compiler/rustc_serialize/src/opaque.rs +++ b/compiler/rustc_serialize/src/opaque.rs @@ -193,6 +193,8 @@ impl FileEncoder { // shaves an instruction off those code paths (on x86 at least). assert!(capacity <= usize::MAX - max_leb128_len()); + // Create the file for reading and writing, because some encoders do both + // (e.g. the metadata encoder when -Zmeta-stats is enabled) let file = File::options().read(true).write(true).create(true).truncate(true).open(path)?; Ok(FileEncoder { |