these 4 derivations will be built:
  /nix/store/w2h72m5ml34dfqk7r09c06wds4x03q7i-test-script.drv
  /nix/store/6yw7pzgivrfn559y2wsw4irfsvgvg7i0-driverConfiguration.json.drv
  /nix/store/f4yqkwc43hi51qbbxfc31w3w9p5xmkcw-nixos-test-driver-disko-test.drv
  /nix/store/vp4svxk8pghk94fg9cfniqmg15fj7bgm-vm-test-run-disko-test.drv
building '/nix/store/w2h72m5ml34dfqk7r09c06wds4x03q7i-test-script.drv'
test-script> tribuchet: building on jamie
test-script> tribuchet worker error: peer error: creating the sandbox root skeleton: File exists (os error 17)
error: Cannot build '/nix/store/w2h72m5ml34dfqk7r09c06wds4x03q7i-test-script.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/igpn30g3qxii06afj4s9cvrpn0i6xkn5-test-script
       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/w2h72m5ml34dfqk7r09c06wds4x03q7i-test-script.drv
error: Cannot build '/nix/store/6yw7pzgivrfn559y2wsw4irfsvgvg7i0-driverConfiguration.json.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/qghyn4g9dm62rg006pfgy8xrz2ys8djm-driverConfiguration.json
error: Cannot build '/nix/store/f4yqkwc43hi51qbbxfc31w3w9p5xmkcw-nixos-test-driver-disko-test.drv'.
       Reason: 2 dependencies failed.
       Output paths:
         /nix/store/3qzw7ig70y9bc2dpdpqvfl53xjyn0xz2-nixos-test-driver-disko-test
error: Cannot build '/nix/store/vp4svxk8pghk94fg9cfniqmg15fj7bgm-vm-test-run-disko-test.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/ws21p8ya3avk4v0f0jffsmdwmyxvf0xg-vm-test-run-disko-test