From ea8d02ae0f0eee219144fe2aa96679e384b6d110 Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <jorge@japaric.io>
Date: Fri, 13 Jul 2018 22:15:21 -0500
Subject: [PATCH] make cargo fmt in ci/script.sh optional

---
 library/compiler-builtins/libm/ci/script.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/library/compiler-builtins/libm/ci/script.sh b/library/compiler-builtins/libm/ci/script.sh
index a4f1b324d660..f2a294b488f5 100644
--- a/library/compiler-builtins/libm/ci/script.sh
+++ b/library/compiler-builtins/libm/ci/script.sh
@@ -15,8 +15,10 @@ main() {
     # generate tests
     cargo run --package test-generator --target x86_64-unknown-linux-musl
 
-    # nicer syntax error messages (if any)
-    cargo fmt
+    if cargo fmt --version >/dev/null 2>&1; then
+        # nicer syntax error messages (if any)
+        cargo fmt
+    fi
 
     # run tests
     cross test --target $TARGET --release