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-rw-r--r--compiler/rustc_middle/src/mir/interpret/mod.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_middle/src/mir/interpret/mod.rs b/compiler/rustc_middle/src/mir/interpret/mod.rs
index c48cfffa05c..2675b7e0fc5 100644
--- a/compiler/rustc_middle/src/mir/interpret/mod.rs
+++ b/compiler/rustc_middle/src/mir/interpret/mod.rs
@@ -573,7 +573,7 @@ pub fn write_target_uint(
 #[inline]
 pub fn read_target_uint(endianness: Endian, mut source: &[u8]) -> Result<u128, io::Error> {
     // This u128 holds an "any-size uint" (since smaller uints can fits in it)
-    let mut buf = [0u8; std::mem::size_of::<u128>()];
+    let mut buf = [0u8; size_of::<u128>()];
     // So we do not read exactly 16 bytes into the u128, just the "payload".
     let uint = match endianness {
         Endian::Little => {