these 4 derivations will be built:
  /nix/store/d6yyzi5z4yzi5mrajyhjw9acgpzlwxvh-iets-0.2.0.drv
  /nix/store/lliwf5j43qdylgwss6psn5pgvpw6dmdn-iets-fuzz-diff-0.0.0.drv
  /nix/store/d4fg41jsmayry7i68pmvjqs9kgf24z17-iets-conformance-adapter.drv
  /nix/store/vn3snzghq5ca6zaaajl1xl86gglj9m38-nix-conformance-iets.drv
building '/nix/store/d6yyzi5z4yzi5mrajyhjw9acgpzlwxvh-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'
warning: d6yyzi5z4yzi5mrajyhjw9acgpzlwxvh-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
d6yyzi5z4yzi5mrajyhjw9acgpzlwxvh-iets-0.2.0.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: build of '/nix/store/d6yyzi5z4yzi5mrajyhjw9acgpzlwxvh-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/d6yyzi5z4yzi5mrajyhjw9acgpzlwxvh-iets-0.2.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/hs7d6v0xd1c8mc6n5f3c6i6d97mg6y7b-iets-0.2.0
building '/nix/store/lliwf5j43qdylgwss6psn5pgvpw6dmdn-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=22&system=aarch64-linux'
warning: lliwf5j43qdylgwss6psn5pgvpw6dmdn-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
lliwf5j43qdylgwss6psn5pgvpw6dmdn-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/lliwf5j43qdylgwss6psn5pgvpw6dmdn-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=22&system=aarch64-linux' failed: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: Cannot build '/nix/store/lliwf5j43qdylgwss6psn5pgvpw6dmdn-iets-fuzz-diff-0.0.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ymfdcy3k9s3lya7zrnsx8rjzj5fg1n47-iets-fuzz-diff-0.0.0
error: Cannot build '/nix/store/d4fg41jsmayry7i68pmvjqs9kgf24z17-iets-conformance-adapter.drv'.
       Reason: 2 dependencies failed.
       Output paths:
         /nix/store/21608a4sv8rf01swmrywpmbbq3sqhrkg-iets-conformance-adapter
error: Cannot build '/nix/store/vn3snzghq5ca6zaaajl1xl86gglj9m38-nix-conformance-iets.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/d4f541c2cldi7lfd91ihzg7dcbs48im0-nix-conformance-iets