Only pass +crt-static to cargo build (#997)

.github/workflows/build.yaml

@@ -42,7 +42,7 @@ jobs:
     runs-on: ${{matrix.os}}
 
     env:
-      RUSTFLAGS: --deny warnings --codegen target-feature=+crt-static
+      RUSTFLAGS: --deny warnings
 
     steps:
     - uses: actions/checkout@v2

bin/package

@@ -14,7 +14,8 @@ echo "Packaging $bin $version for $target..."
 test -f Cargo.lock || cargo generate-lockfile
 
 echo "Building $bin..."
-cargo build --bin $bin --target $target --release
+RUSTFLAGS='--deny warnings --codegen target-feature=+crt-static' \
+  cargo build --bin $bin --target $target --release
 executable=target/$target/release/$bin
 
 if [[ $os == windows-2016 ]]; then