diff --git a/.github/workflows/ubuntu-ci-x86_64-gnu.yaml b/.github/workflows/ubuntu-ci-x86_64-gnu.yaml
index f85113ac7..2b4be8ffe 100644
--- a/.github/workflows/ubuntu-ci-x86_64-gnu.yaml
+++ b/.github/workflows/ubuntu-ci-x86_64-gnu.yaml
@@ -131,16 +131,6 @@ jobs:
               echo "jedi-ufs-env ..."
               spack install --fail-fast --source --no-check-signature jedi-ufs-env 2>&1 | tee log.install.gnu-11.4.0-buildcache.jedi-ufs-env
               spack buildcache create -u /home/ubuntu/spack-stack/build-cache/ jedi-ufs-env
-
-            elif [[ "${TEMPLATE}" == *"cylc-dev"* ]]; then
-              # Workaround for not being able to install rust from build-cache, see 
-              # https://github.com/spack/spack/issues/48971
-              echo "rust dependencies ..."
-              spack install --verbose --source --no-check-signature --only=dependencies rust 2>&1 | tee log.install.gnu-11.4.0-buildcache.${TEMPLATE}.001.rust-dependencies
-
-              # rust from source
-              echo "rust (from source) ..."
-              spack install --verbose --source --no-cache rust 2>&1 | tee log.install.gnu-11.4.0-buildcache.${TEMPLATE}.002.rust
             fi
 
             # the rest