these 4 derivations will be built:
  /nix/store/cjhnzcb5f1dmplhqnaf2f7j93yjwpyiv-options.json.drv
  /nix/store/sx2n7w39afc24w8zcqvlyw6vsvqfmz8a-options.md.drv
  /nix/store/k12r9gifazbhg0dik7kax45pmvf5swwd-disko-options.md.drv
  /nix/store/idyya12lrhvd0wj5lp6f8vmrzrxdl04d-disko.html.drv
building '/nix/store/cjhnzcb5f1dmplhqnaf2f7j93yjwpyiv-options.json.drv'
options.json> tribuchet: building on jamie
options.json> tribuchet worker error: peer error: creating the sandbox root skeleton: File exists (os error 17)
error: Cannot build '/nix/store/cjhnzcb5f1dmplhqnaf2f7j93yjwpyiv-options.json.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/k1p4adwf8an8rb7zjvhx4zdpl53r2k3j-options.json
       Last 2 log lines:
       > tribuchet: building on jamie
       > tribuchet worker error: peer error: creating the sandbox root skeleton: File exists (os error 17)
       For full logs, run:
         nix log /nix/store/cjhnzcb5f1dmplhqnaf2f7j93yjwpyiv-options.json.drv
error: Cannot build '/nix/store/sx2n7w39afc24w8zcqvlyw6vsvqfmz8a-options.md.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/bpd295rxp49ckf5hlw27ryii2a5lx2ix-options.md
error: Cannot build '/nix/store/k12r9gifazbhg0dik7kax45pmvf5swwd-disko-options.md.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/fqwd9r36r1c32knddblb6bz6qmbdxb0x-disko-options.md
error: Cannot build '/nix/store/idyya12lrhvd0wj5lp6f8vmrzrxdl04d-disko.html.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/vhl159i3aqf0wxx1injb1szfrfla0p85-disko.html