this derivation will be built:
  /nix/store/iqyj14xx6avasn5dh3vgfk109z3pqbk4-flaky-4.drv
building '/nix/store/iqyj14xx6avasn5dh3vgfk109z3pqbk4-flaky-4.drv'
flaky-4> tribuchet: building on jamie
error: Cannot build '/nix/store/iqyj14xx6avasn5dh3vgfk109z3pqbk4-flaky-4.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/k0pv3y24kfi7w80djwzick4qh0nz0k1q-flaky-4
       Last 1 log lines:
       > tribuchet: building on jamie
       For full logs, run:
         nix log /nix/store/iqyj14xx6avasn5dh3vgfk109z3pqbk4-flaky-4.drv