this derivation will be built:
  /nix/store/4p6i22s0bs50dip5f4zwawiavj20lmcs-tribuchet-darwin-module.drv
building '/nix/store/4p6i22s0bs50dip5f4zwawiavj20lmcs-tribuchet-darwin-module.drv'
tribuchet-darwin-module> tribuchet: building on jamie
tribuchet-darwin-module> mv: cannot remove '/build/.attr-1lf969yddshzhld7sr1vbagr07bnygg99lgl6gk5kxcnp4z9wbcq': Operation not permitted
error: Cannot build '/nix/store/4p6i22s0bs50dip5f4zwawiavj20lmcs-tribuchet-darwin-module.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/1ylkjm6s7cwcm686pifqzplbh4xpaxln-tribuchet-darwin-module
       Last 2 log lines:
       > tribuchet: building on jamie
       > mv: cannot remove '/build/.attr-1lf969yddshzhld7sr1vbagr07bnygg99lgl6gk5kxcnp4z9wbcq': Operation not permitted
       For full logs, run:
         nix log /nix/store/4p6i22s0bs50dip5f4zwawiavj20lmcs-tribuchet-darwin-module.drv