Don't run cargo-hack on Redox

It needs a newer compiler than what Redox uses.

Author: asomers

.cirrus.yml

@@ -230,6 +230,8 @@ task:
         TARGET: x86_64-unknown-netbsd
     - name: Redox x86_64
       env:
+        # cargo-hack needs a newer compiler
+        NOHACK: 1
         TARGET: x86_64-unknown-redox
         # Redox requires a nightly compiler.
         # If stuff breaks, change nightly to the date in the toolchain_*