these 3 derivations will be built:
  /nix/store/c5bn872l4kixgz0dkgi6nvfn6w0hk80q-source.drv
  /nix/store/sbnbr17yxlay0abpdr136s2gai138n6c-hax-0.6.1.drv
  /nix/store/41xkzwa7brbbf1zi9mkgcawla7r0r4gn-check-hax.drv
these 3 paths will be fetched (0.0 KiB download, 16.9 MiB unpacked):
  /nix/store/36ps18p5xx4m2g3010wcxvc2l15g3x5x-jansson-2.15.0-dev
  /nix/store/yjl5dwm08zmfsjrqyidrvcgm59qlgmxz-meson-1.12.1
  /nix/store/infm4vlx71q83bqz0k559w1gn4b0rq4i-ninja-1.13.2