this derivation will be built:
  /nix/store/z51y96xwj1cbvzglksji0hgrj9d1qpmh-cal-diy-6.2.0.drv
building '/nix/store/z51y96xwj1cbvzglksji0hgrj9d1qpmh-cal-diy-6.2.0.drv' on 'ssh-ng://julienmalka@aarch64-build-box.nix-community.org'