The Parity CI Docker image sets RUSTC_WRAPPER=/usr/local/bin/forklift
for GCS cache optimization. On our VPS runners without GCP credentials,
forklift crashes with nil pointer dereference when trying to create
GCS client. The global env RUSTC_WRAPPER="" doesn't reliably propagate
into Docker containers.
Fix: Add explicit "Disable forklift cache wrapper" step in every
container job that runs cargo commands, using $GITHUB_ENV to ensure
the empty RUSTC_WRAPPER persists across all steps within the job.
Affected workflows: build-publish-images, checks, tests, tests-misc,
build-misc, docs (32 container jobs total).
pezkuwichain
66d4eb81d8