these 2 derivations will be built:
  /nix/store/4jpnkh49k2y6ygpd34ai6crg1mlnl1bj-cargo-vendor-dir.drv
  /nix/store/g6iahd6dc49y37bvxfv6vizghfakmflg-flakelet-0.1.0.drv
error: Cannot build '/nix/store/4jpnkh49k2y6ygpd34ai6crg1mlnl1bj-cargo-vendor-dir.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ppx9cwq9k79wxqv3bmi8gp4a6bw1sjmf-cargo-vendor-dir
       Last 2 log lines:
       > tribuchet: building on jamie
       > tribuchet worker error: connecting to the build agent at /run/tribuchet/agents/95.sock: Connection refused (os error 111)
       For full logs, run:
         nix log /nix/store/4jpnkh49k2y6ygpd34ai6crg1mlnl1bj-cargo-vendor-dir.drv
error: Cannot build '/nix/store/g6iahd6dc49y37bvxfv6vizghfakmflg-flakelet-0.1.0.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/r2dvj66wb5bz326nnrhsljjk8gvri3hy-flakelet-0.1.0