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-rw-r--r--compiler/rustc_parse/src/parser/token_type.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_parse/src/parser/token_type.rs b/compiler/rustc_parse/src/parser/token_type.rs
index 110546d0ba6..886438fd583 100644
--- a/compiler/rustc_parse/src/parser/token_type.rs
+++ b/compiler/rustc_parse/src/parser/token_type.rs
@@ -619,7 +619,7 @@ impl Iterator for TokenTypeSetIter {
     type Item = TokenType;
 
     fn next(&mut self) -> Option<TokenType> {
-        let num_bits: u32 = (std::mem::size_of_val(&self.0.0) * 8) as u32;
+        let num_bits: u32 = (size_of_val(&self.0.0) * 8) as u32;
         assert_eq!(num_bits, 128);
         let z = self.0.0.trailing_zeros();
         if z == num_bits {