these 4 derivations will be built:
  /nix/store/ivw4g53q0qqd958yxvykd98zpz106kr5-iets-fuzz-diff-0.0.0.drv
  /nix/store/p9p7sl8a6dvn7fs3s1693p3b10a9yr41-iets-0.2.0.drv
  /nix/store/r0yk3005pvmyypz8769dvrpgrs88mvyd-iets-conformance-adapter.drv
  /nix/store/hq8rb07amkqgni4zwjcx8qgnlc01fmhi-nix-conformance-iets.drv
warning: p9p7sl8a6dvn7fs3s1693p3b10a9yr41-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
p9p7sl8a6dvn7fs3s1693p3b10a9yr41-iets-0.2.0.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: build of '/nix/store/p9p7sl8a6dvn7fs3s1693p3b10a9yr41-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=22&system=aarch64-linux' failed: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: Cannot build '/nix/store/p9p7sl8a6dvn7fs3s1693p3b10a9yr41-iets-0.2.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/hrw1hi8q4rhx32fg1kdr5vr8ps4b46f2-iets-0.2.0
error: Cannot build '/nix/store/r0yk3005pvmyypz8769dvrpgrs88mvyd-iets-conformance-adapter.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/3x3xmlz0cj50vl54jgvzy246iyvpgqai-iets-conformance-adapter
error: Cannot build '/nix/store/hq8rb07amkqgni4zwjcx8qgnlc01fmhi-nix-conformance-iets.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/4iz6bdzwcrjazx6s52p52wfx43ba1kh5-nix-conformance-iets