try to fix Windows CI

diff --git a/.appveyor.yml b/.appveyor.yml
index 5b77b1895a6313a94aeaffff9a9a16be578181ef..438a65880b8704efeba691c1af4addd3fecfb112 100644 (file)
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -30,7 +30,7 @@ install:
 build_script:
     - set RUST_TEST_NOCAPTURE=1
     - set RUST_BACKTRACE=1
-    - set RUSTFLAGS="-C debug-assertions"
+    - set RUSTFLAGS=-C debug-assertions
     # Build and install miri
     - cargo build --release --all-features --all-targets
     - cargo install --all-features --force --path .