these 4 derivations will be built:
  /nix/store/cxkx3n4mbahm942q5qchvhf2x6sfqgxl-iets-0.2.0.drv
  /nix/store/pn12rqm76q2lmbg5f7mqrdpknizhnla6-iets-fuzz-diff-0.0.0.drv
  /nix/store/xifkbf5hw713c04xq7rfs47m2ks45cmv-iets-conformance-adapter.drv
  /nix/store/xfj8p8rvv7cvxx7jl3900jin2yvzfqgi-nix-conformance-iets.drv
warning: cxkx3n4mbahm942q5qchvhf2x6sfqgxl-iets-0.2.0.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}, waiting up to 120s for a worker
warning: pn12rqm76q2lmbg5f7mqrdpknizhnla6-iets-fuzz-diff-0.0.0.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}, waiting up to 120s for a worker
pn12rqm76q2lmbg5f7mqrdpknizhnla6-iets-fuzz-diff-0.0.0.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: build of '/nix/store/pn12rqm76q2lmbg5f7mqrdpknizhnla6-iets-fuzz-diff-0.0.0.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=20&system=aarch64-linux' failed: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: Cannot build '/nix/store/pn12rqm76q2lmbg5f7mqrdpknizhnla6-iets-fuzz-diff-0.0.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/93jxqsacnp15lybf6z7f9xr4qmd33ryb-iets-fuzz-diff-0.0.0
error: Cannot build '/nix/store/xifkbf5hw713c04xq7rfs47m2ks45cmv-iets-conformance-adapter.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/3xb7bmkrmsjhc1i34rh1y2lngdv41nby-iets-conformance-adapter
error: Cannot build '/nix/store/xfj8p8rvv7cvxx7jl3900jin2yvzfqgi-nix-conformance-iets.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/nxzyn58swpi21ff4502366a4py29zaf4-nix-conformance-iets