these 3 derivations will be built:
  /nix/store/9ckrkj0ilg543ndc4l7063xw7qv94dl1-clan-core-flake.drv
  /nix/store/zfvwagmj6zdkmpp5bry14g22dg506m99-clan-cli-source.drv
  /nix/store/ag6c1hml5zapznf2g2r5fnx4sgks0p6d-clan-pytest-with-core.drv
building '/nix/store/9ckrkj0ilg543ndc4l7063xw7qv94dl1-clan-core-flake.drv' on 'ssh-ng://builder@build01.clan.lol'
building '/nix/store/9ckrkj0ilg543ndc4l7063xw7qv94dl1-clan-core-flake.drv'
clan-core-flake> warning: you don't have Internet access; disabling some network-dependent features
clan-core-flake> warning: you don't have Internet access; disabling some network-dependent features
clan-core-flake> 
building '/nix/store/ag6c1hml5zapznf2g2r5fnx4sgks0p6d-clan-pytest-with-core.drv' on 'ssh-ng://builder@build01.clan.lol'
error: path '/nix/store/1305894sxjgrk18g0pv9d8984dq1xjzy-tzcode2026b.tar.gz' is not valid
error: Cannot build '/nix/store/ag6c1hml5zapznf2g2r5fnx4sgks0p6d-clan-pytest-with-core.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/xkjdw8f0wc9p1dllz010yh334d3d7r2p-clan-pytest-with-core