create symlink to sccache to prevent path problems

.github/workflows/ci.yml

@@ -3,7 +3,7 @@ on: [pull_request]
 name: CI
 
 env:
-  RUSTC_WRAPPER: ./ci/sccache
+  RUSTC_WRAPPER: /usr/local/bin/sccache
 
 jobs:
   test:
@@ -13,11 +13,11 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - run: ./ci/sccache -V
-
       - name: Install CI Libraries
         run: sudo ./ci/install-ci-libraries.sh 10
 
+      - run: sccache -V
+
       - name: Run Zig tests
         run: pushd compiler/builtins/bitcode; ./run-tests.sh; popd;
 
@@ -72,4 +72,4 @@ jobs:
           command: test
           args: --release
 
-      - run: ./ci/sccache --show-stats
+      - run: sccache --show-stats

ci/install-ci-libraries.sh

@@ -79,3 +79,6 @@ valgrind --version
 wget -c https://ziglang.org/builds/zig-linux-x86_64-0.6.0+0088efc4b.tar.xz --no-check-certificate
 tar -xf zig-linux-x86_64-0.6.0+0088efc4b.tar.xz
 ln -s "$PWD/zig-linux-x86_64-0.6.0+0088efc4b/zig" /usr/local/bin/zig
+
+# create link to sccache to prevent current working dir problems
+ln -s ./ci/sccache /usr/local/bin/sccache