these 4 derivations will be built:
  /nix/store/vdnlllhdla5h7dldnnxsz2259gg93rkc-rustfmt-1.95.0.drv
  /nix/store/cfwb7ybd5sk8bgyawg1cjk30m72x1x6i-rustc-1.96.0.drv
  /nix/store/rpkhciixbc5j0x3ck2mlpn8i99jx7rdm-rustc-wrapper-1.96.0.drv
  /nix/store/r6jvaf0n6xdp80xwp9h7031143bipfzk-bcachefs-module-7.0.12-1-cachyos-bmq.drv
these 3 paths will be fetched (1204.57 MiB download, 1630.26 MiB unpacked):
  /nix/store/b7n44dj0nvgm7krgcrl80swbif2qqxid-linux-7.0.13-dev
  /nix/store/6wq4v4hfgx2875qszshp9x06wmlc5z65-rustc-1.95.0-src.tar.gz
  /nix/store/fa9n4kyl8m3495vc6ra9bg8xg0lmn8b4-rustc-1.96.0-src.tar.gz
copying path '/nix/store/b7n44dj0nvgm7krgcrl80swbif2qqxid-linux-7.0.13-dev' from 'https://cache.nixos.org'...
copying path '/nix/store/fa9n4kyl8m3495vc6ra9bg8xg0lmn8b4-rustc-1.96.0-src.tar.gz' from 'https://cache.nixos.org'...
copying path '/nix/store/6wq4v4hfgx2875qszshp9x06wmlc5z65-rustc-1.95.0-src.tar.gz' from 'https://cache.nixos.org'...
building '/nix/store/r6jvaf0n6xdp80xwp9h7031143bipfzk-bcachefs-module-7.0.12-1-cachyos-bmq.drv'...