these 4 derivations will be built:
  /nix/store/ap4dfxa3fd2h8fvzspr8l799756rlcac-clan-runtime.drv
  /nix/store/rnzl0wc78k92ylxrd2jb3jj6rxygqfax-clan-cli-source.drv
  /nix/store/0g4ygq3dm7iskx3fclpiv9ah0hwpdc2n-clan-cli.drv
  /nix/store/pap9dbz0adbidv38h17j1yji6jgsc0gx-nix-shell.drv
building '/nix/store/pap9dbz0adbidv38h17j1yji6jgsc0gx-nix-shell.drv' on 'ssh-ng://builder@build01.clan.lol'
building '/nix/store/pap9dbz0adbidv38h17j1yji6jgsc0gx-nix-shell.drv'
nix-shell> Running phase: buildPhase

post-build step Upload to niks3: ok
time=2026-09-21T01:04:14.207Z level=INFO msg="Uploading 2 paths to niks3.clan.lol (222 already cached)"
time=2026-09-21T01:04:14.207Z level=INFO msg="Uploading fys8797hrn03xzl5j32jg07s25rj6q0h-nix-shell (6.6KB)"
time=2026-09-21T01:04:14.207Z level=INFO msg="Uploading zk79px3awmq1lhqg1p0i5c3ny0cw8sy7-source (204.6MB)"
time=2026-09-21T01:04:15.370Z level=ERROR msg="Failed to close zstd encoder" error="io: read/write on closed pipe"
time=2026-09-21T01:04:15.371Z level=INFO msg="Uploading 3 narinfos"
time=2026-09-21T01:04:15.735Z level=INFO msg="Upload complete. (1.681s)"