these 4 derivations will be built:
  /nix/store/fbfi7nrc48bxhnrhpp54whi0b6gqgar9-iets-static-aarch64-unknown-linux-musl-0.1.0.drv
  /nix/store/xdary6ijv7bm5swxx5hzg9jrj54q7fpq-iets-static-x86_64-unknown-linux-musl-0.1.0.drv
  /nix/store/0lmvzs092nkzxp44s54hfg3qfz23shvm-iets-release-0.1.0.drv
  /nix/store/9cdmw19gyppn240cjlqyak7ld79rjya5-inputDerivation-effect-release.drv
building '/nix/store/xdary6ijv7bm5swxx5hzg9jrj54q7fpq-iets-static-x86_64-unknown-linux-musl-0.1.0.drv'...
building '/nix/store/fbfi7nrc48bxhnrhpp54whi0b6gqgar9-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=21&system=aarch64-linux'...
copying 1 paths...
copying path '/nix/store/wk5ll06w9ixvhqaj16qgg8iviri6y3j5-source' to 'grpc://farm.numtide.com:50051'...
copying 1 paths to 'farm.numtide.com:50051'...
copying path '/nix/store/fbfi7nrc48bxhnrhpp54whi0b6gqgar9-iets-static-aarch64-unknown-linux-musl-0.1.0.drv' to 'farm.numtide.com:50051'...
building '/nix/store/fbfi7nrc48bxhnrhpp54whi0b6gqgar9-iets-static-aarch64-unknown-linux-musl-0.1.0.drv' on farm.numtide.com:50051...
copying 1 paths...
copying path '/nix/store/cf7yf0nzi4vs0k5xyahddb2d7yyvlg8l-iets-static-aarch64-unknown-linux-musl-0.1.0' from 'grpc://farm.numtide.com:50051'...
building '/nix/store/0lmvzs092nkzxp44s54hfg3qfz23shvm-iets-release-0.1.0.drv'...
building '/nix/store/9cdmw19gyppn240cjlqyak7ld79rjya5-inputDerivation-effect-release.drv'...