these 4 derivations will be built:
  /nix/store/0z0dl3pmfxwnq0lr4k9iay0jk2l0lyn2-iets-static-x86_64-unknown-linux-musl-0.1.0.drv
  /nix/store/jac53n68mjgy22g741lxfi9rgjvc21r3-iets-static-aarch64-unknown-linux-musl-0.1.0.drv
  /nix/store/jafq97mglbhzqmj47977nkxsxzrjkkha-iets-release-0.1.0.drv
  /nix/store/pihgdy9ngp8dkrs1hbizsigqg3g24i36-inputDerivation-effect-release.drv
building '/nix/store/jac53n68mjgy22g741lxfi9rgjvc21r3-iets-static-aarch64-unknown-linux-musl-0.1.0.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'...
building '/nix/store/0z0dl3pmfxwnq0lr4k9iay0jk2l0lyn2-iets-static-x86_64-unknown-linux-musl-0.1.0.drv'...
copying 1 paths...
copying path '/nix/store/3dzz9kzxdpnha4max43imb8yw7ifizr6-source' to 'grpc://farm.numtide.com:50051'...
copying 1 paths to 'farm.numtide.com:50051'...
copying path '/nix/store/jac53n68mjgy22g741lxfi9rgjvc21r3-iets-static-aarch64-unknown-linux-musl-0.1.0.drv' to 'farm.numtide.com:50051'...
building '/nix/store/jac53n68mjgy22g741lxfi9rgjvc21r3-iets-static-aarch64-unknown-linux-musl-0.1.0.drv' on farm.numtide.com:50051...
copying 1 paths...
copying path '/nix/store/sigrdys6ckn3wkkbyp3v1fyjx071gmlw-iets-static-aarch64-unknown-linux-musl-0.1.0' from 'grpc://farm.numtide.com:50051'...
building '/nix/store/jafq97mglbhzqmj47977nkxsxzrjkkha-iets-release-0.1.0.drv'...
building '/nix/store/pihgdy9ngp8dkrs1hbizsigqg3g24i36-inputDerivation-effect-release.drv'...