these 2 derivations will be built:
  /nix/store/0az0rj1kshx6d6vyrr45f408nijjjh2z-fence-0.1.67.drv
  /nix/store/0kpf79dwmj10m3sdpprrz5yih6pqdrc7-check-fence.drv
these 2 paths will be fetched (58.4 MiB download, 172.8 MiB unpacked):
  /nix/store/941d0qk186nvyk30whmdwcsbp9ng2rqk-bcc-0.37.0
  /nix/store/3fs0s8zj98syn11w3xngzairb1jriksc-bpftrace-0.27.0