Tracking issue: Docker/gitlab-runner/golang incompatibility
A breaking change in golang broke Docker (https://github.com/docker/cli/issues/4437#issuecomment-1637715017). It also broke gitlab-runner (https://gitlab.com/gitlab-org/gitlab-runner/-/issues/36051).
Until fixes for these problems flow down the distribution channels, our gitlab runners are pinned to fixed versions of nixpkgs.
Original report follows.
I have had to pause zw3rk linux runners 5,6 and 7.
ERROR: Job failed (system failure): prepare environment: http: invalid Host header (exec.go:71:0s). Check https://docs.gitlab.com/runner/shells/index.html#shell-profile-loading for more information
Edited by Bryan R