these 4 derivations will be built:
  /nix/store/15j8iv33z1zpvx2rf80vs9pwzww60zzv-iets-0.2.0.drv
  /nix/store/77lm8zpm2i58afc9b3j1322wykmnk9zb-iets-fuzz-diff-0.0.0.drv
  /nix/store/f0xqac2la02m876v9840xj9zwlybw65b-iets-conformance-adapter.drv
  /nix/store/xdjg1wr4cxq5yvbgx769xffb7nfrliax-nix-conformance-iets.drv
warning: 15j8iv33z1zpvx2rf80vs9pwzww60zzv-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: 77lm8zpm2i58afc9b3j1322wykmnk9zb-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
15j8iv33z1zpvx2rf80vs9pwzww60zzv-iets-0.2.0.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: build of '/nix/store/15j8iv33z1zpvx2rf80vs9pwzww60zzv-iets-0.2.0.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=21&system=aarch64-linux' failed: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: Cannot build '/nix/store/15j8iv33z1zpvx2rf80vs9pwzww60zzv-iets-0.2.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/pn254a1yfvw1fcpkb5x0id1a2bjz06sw-iets-0.2.0
77lm8zpm2i58afc9b3j1322wykmnk9zb-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/77lm8zpm2i58afc9b3j1322wykmnk9zb-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/77lm8zpm2i58afc9b3j1322wykmnk9zb-iets-fuzz-diff-0.0.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/fvghx8r6fs7wwmfsfalazkxks6vi6nr0-iets-fuzz-diff-0.0.0
error: Cannot build '/nix/store/f0xqac2la02m876v9840xj9zwlybw65b-iets-conformance-adapter.drv'.
       Reason: 2 dependencies failed.
       Output paths:
         /nix/store/rs68i6clfvxnc3m7f8zb59wyn56p84yk-iets-conformance-adapter
error: Cannot build '/nix/store/xdjg1wr4cxq5yvbgx769xffb7nfrliax-nix-conformance-iets.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/14hnrp8m0a15dqh88rv7l2mhh7aldchc-nix-conformance-iets