unpacking 'https://github.com/NixOS/nixpkgs/archive/643809054d65fdd466a63e3155b8c498cb483c04.tar.gz' into the Git cache...
unpacking 'https://github.com/NixOS/nixpkgs/archive/e7a3ca8092b61ff85b6a45bf863ea2b2d6a661b3.tar.gz' into the Git cache...
this derivation will be built:
  /nix/store/zj6kq04xqw4skp7dgfq88rnp8njmj7mx-bcachefs-module-7.0.0-29-generic.drv
these 3 paths will be fetched (85.23 MiB download, 265.36 MiB unpacked):
  /nix/store/c8yvv2dm95ny3zsbldv6fzzvyi04j7hy-gcc-15.3.0
  /nix/store/wv53i0c5inwp99yjy0b828mcpyrr8gqz-gcc-wrapper-15.3.0
  /nix/store/c3h7z3rjipqw1xvpwks7avnb8828jn1q-stdenv-linux
copying path '/nix/store/c8yvv2dm95ny3zsbldv6fzzvyi04j7hy-gcc-15.3.0' from 'https://cache.nixos.org'...
building '/nix/store/zj6kq04xqw4skp7dgfq88rnp8njmj7mx-bcachefs-module-7.0.0-29-generic.drv'...