From 1bab6a4db788abae8c06cfa3cb19b0027e9cd8bf Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Fri, 1 May 2020 14:39:41 +0200
Subject: [PATCH] fix Miri error message padding

---
 src/librustc_middle/mir/interpret/error.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/librustc_middle/mir/interpret/error.rs b/src/librustc_middle/mir/interpret/error.rs
index 40454ce3b2db8..0ab14b53e1b1f 100644
--- a/src/librustc_middle/mir/interpret/error.rs
+++ b/src/librustc_middle/mir/interpret/error.rs
@@ -439,10 +439,10 @@ impl fmt::Display for UndefinedBehaviorInfo {
             DerefFunctionPointer(a) => write!(f, "accessing {} which contains a function", a),
             ValidationFailure(ref err) => write!(f, "type validation failed: {}", err),
             InvalidBool(b) => {
-                write!(f, "interpreting an invalid 8-bit value as a bool: 0x{:2x}", b)
+                write!(f, "interpreting an invalid 8-bit value as a bool: 0x{:02x}", b)
             }
             InvalidChar(c) => {
-                write!(f, "interpreting an invalid 32-bit value as a char: 0x{:8x}", c)
+                write!(f, "interpreting an invalid 32-bit value as a char: 0x{:08x}", c)
             }
             InvalidDiscriminant(val) => write!(f, "enum value has invalid discriminant: {}", val),
             InvalidFunctionPointer(p) => {