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/4gjdni9qlk8fg3b7ni53aqpkgi6jb9yb-bcachefs-module-7.0.0-29-generic.drv
these 5 paths will be fetched (88.32 MiB download, 275.52 MiB unpacked):
  /nix/store/c8yvv2dm95ny3zsbldv6fzzvyi04j7hy-gcc-15.3.0
  /nix/store/1chms11nj1wyg01wnchj4dvrc35bhh0v-gcc-15.3.0-lib
  /nix/store/23p05bv039n0ldgcb2af0v2rmhj2y2s1-gcc-15.3.0-libgcc
  /nix/store/wv53i0c5inwp99yjy0b828mcpyrr8gqz-gcc-wrapper-15.3.0
  /nix/store/c3h7z3rjipqw1xvpwks7avnb8828jn1q-stdenv-linux
copying path '/nix/store/23p05bv039n0ldgcb2af0v2rmhj2y2s1-gcc-15.3.0-libgcc' from 'https://cache.nixos.org'...
copying path '/nix/store/1chms11nj1wyg01wnchj4dvrc35bhh0v-gcc-15.3.0-lib' from 'https://cache.nixos.org'...
copying path '/nix/store/c8yvv2dm95ny3zsbldv6fzzvyi04j7hy-gcc-15.3.0' from 'https://cache.nixos.org'...
copying path '/nix/store/wv53i0c5inwp99yjy0b828mcpyrr8gqz-gcc-wrapper-15.3.0' from 'https://cache.nixos.org'...
copying path '/nix/store/c3h7z3rjipqw1xvpwks7avnb8828jn1q-stdenv-linux' from 'https://cache.nixos.org'...
building '/nix/store/4gjdni9qlk8fg3b7ni53aqpkgi6jb9yb-bcachefs-module-7.0.0-29-generic.drv'...