these 3 derivations will be built:
  /nix/store/gp89rjg2hxa34cdmhj1yx80fnhp0qzbd-pi-src-with-lock.drv
  /nix/store/b823sq6gq0133ks01qrblacd0lyfpvrx-pi-1.4.0.drv
  /nix/store/3g6m4bv8ma8na2dx1vhwdkkh6s9254hi-check-pi.drv
building '/nix/store/gp89rjg2hxa34cdmhj1yx80fnhp0qzbd-pi-src-with-lock.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=22&system=aarch64-darwin'
building '/nix/store/gp89rjg2hxa34cdmhj1yx80fnhp0qzbd-pi-src-with-lock.drv' on farm.numtide.com:50051
pi-src-with-lock> mac02: building gp89rjg2hxa34cdmhj1yx80fnhp0qzbd-pi-src-with-lock.drv
building '/nix/store/b823sq6gq0133ks01qrblacd0lyfpvrx-pi-1.4.0.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=22&system=aarch64-darwin'
building '/nix/store/b823sq6gq0133ks01qrblacd0lyfpvrx-pi-1.4.0.drv' on farm.numtide.com:50051
pi-1.4.0> mac02: building b823sq6gq0133ks01qrblacd0lyfpvrx-pi-1.4.0.drv
building '/nix/store/3g6m4bv8ma8na2dx1vhwdkkh6s9254hi-check-pi.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=22&system=aarch64-darwin'
building '/nix/store/3g6m4bv8ma8na2dx1vhwdkkh6s9254hi-check-pi.drv' on farm.numtide.com:50051
check-pi> mac02: building 3g6m4bv8ma8na2dx1vhwdkkh6s9254hi-check-pi.drv