From d89f4bcea9407c5560392c875db2a1415bbc81be Mon Sep 17 00:00:00 2001
From: Matt Bilker <me@mbilker.us>
Date: Tue, 28 Dec 2021 08:14:05 +0000
Subject: [PATCH] lib: support Rust 1.48 as MSRV

---
 src/lib.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 98ea921..250625c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -486,7 +486,10 @@ fn apply_profile_override(
                     );
 
                     // Zero out the field first.
-                    config.$field.fill(0);
+                    // (`fill` was stabilized in Rust 1.50, but Debian Bullseye ships with 1.48)
+                    for v in config.$field.iter_mut() {
+                        *v = 0;
+                    }
 
                     // Write the string bytes.
                     let _ = config.$field[..].as_mut().write_all(value_bytes);