From 77bc02e110841af9886c49f95478a189b862f688 Mon Sep 17 00:00:00 2001
From: Alan Somers <asomers@gmail.com>
Date: Tue, 16 Nov 2021 17:19:12 -0700
Subject: Update the OSX test environment for Big Sur

Big Sur is the first OSX version that supports preadv/pwritev
---
 .cirrus.yml | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/.cirrus.yml b/.cirrus.yml
index a342e858..71368270 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -54,12 +54,11 @@ task:
 
 # Test OSX in a full VM
 task:
-  matrix:
-    - name: OSX x86_64
-      env:
-        TARGET: x86_64-apple-darwin
+  name: OSX x86_64
+  env:
+    TARGET: x86_64-apple-darwin
   osx_instance:
-    image: catalina-xcode
+    image: big-sur-xcode
   setup_script:
     - curl --proto '=https' --tlsv1.2 -sSf -o rustup.sh https://sh.rustup.rs
     - sh rustup.sh -y --profile=minimal --default-toolchain $TOOLCHAIN
-- 
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