unpacking 'https://github.com/NixOS/nixpkgs/archive/3d46470bb3030020f7e1361f33514854f5bfa86d.tar.gz' into the Git cache...
these 3 derivations will be built:
  /nix/store/4v5jskw8f4pkln80r47d822xfgp0d1za-rust-bindgen-unwrapped-0.72.1.drv
  /nix/store/bn3qx12x7yv9cj42mv7bp60aq193c953-rust-bindgen-0.72.1.drv
  /nix/store/b9wi1h0jpfl7fx6z3f6hrwk17lqfimvc-bcachefs-module-6.18.38-1-lts.drv
these 11 paths will be fetched (522.27 MiB download, 2319.41 MiB unpacked):
  /nix/store/r45cvg1lvp4mzvanqvnbnqsf33mys7jd-bindgen-cli-0.72.1.tar.gz
  /nix/store/a52p6ml86agl0zzq404j57c8nzhc8d88-clang-22.1.8
  /nix/store/fkpqai4h165xiv0n0ky9wcmrq517vijw-clang-22.1.8-lib
  /nix/store/5k3whqjzsr9qj51hb9b23jdn6p9nhwlp-clang-wrapper-22.1.8
  /nix/store/hdvh9qrg5xwgp3i9gv9n06s3h5xzcv7k-compiler-rt-libc-22.1.8
  /nix/store/ic91zg82wikifaahwk1c4x3jspiv0lvm-compiler-rt-libc-22.1.8-dev
  /nix/store/z4gv37hd656zb6iljmqycfi5160qmav0-linux-6.18.36
  /nix/store/q78ww39p0v5y4sjj2idpp7xlpr0s9q7z-linux-6.18.36-dev
  /nix/store/xlbyq2k7xi205dhsq95l8qbgnsnpnjsi-llvm-22.1.8-lib
  /nix/store/kskx26b8ppfvvz6xjf411q6kd1s7sfq3-rust-bindgen-unwrapped-0.72.1-vendor
  /nix/store/ffllnlm0zqzc2dsd03r0yz9cc1klylv7-rustfmt-nightly-1.95.0
copying path '/nix/store/z4gv37hd656zb6iljmqycfi5160qmav0-linux-6.18.36' from 'https://cache.nixos.org'...
copying path '/nix/store/hdvh9qrg5xwgp3i9gv9n06s3h5xzcv7k-compiler-rt-libc-22.1.8' from 'https://cache.nixos.org'...
copying path '/nix/store/xlbyq2k7xi205dhsq95l8qbgnsnpnjsi-llvm-22.1.8-lib' from 'https://cache.nixos.org'...
copying path '/nix/store/kskx26b8ppfvvz6xjf411q6kd1s7sfq3-rust-bindgen-unwrapped-0.72.1-vendor' from 'https://cache.nixos.org'...
copying path '/nix/store/r45cvg1lvp4mzvanqvnbnqsf33mys7jd-bindgen-cli-0.72.1.tar.gz' from 'https://cache.nixos.org'...
copying path '/nix/store/ffllnlm0zqzc2dsd03r0yz9cc1klylv7-rustfmt-nightly-1.95.0' from 'https://cache.nixos.org'...
copying path '/nix/store/q78ww39p0v5y4sjj2idpp7xlpr0s9q7z-linux-6.18.36-dev' from 'https://cache.nixos.org'...
copying path '/nix/store/ic91zg82wikifaahwk1c4x3jspiv0lvm-compiler-rt-libc-22.1.8-dev' from 'https://cache.nixos.org'...
warning: download buffer is full; consider increasing the 'download-buffer-size' setting
copying path '/nix/store/fkpqai4h165xiv0n0ky9wcmrq517vijw-clang-22.1.8-lib' from 'https://cache.nixos.org'...
copying path '/nix/store/a52p6ml86agl0zzq404j57c8nzhc8d88-clang-22.1.8' from 'https://cache.nixos.org'...
copying path '/nix/store/5k3whqjzsr9qj51hb9b23jdn6p9nhwlp-clang-wrapper-22.1.8' from 'https://cache.nixos.org'...
building '/nix/store/4v5jskw8f4pkln80r47d822xfgp0d1za-rust-bindgen-unwrapped-0.72.1.drv'...
building '/nix/store/bn3qx12x7yv9cj42mv7bp60aq193c953-rust-bindgen-0.72.1.drv'...
building '/nix/store/b9wi1h0jpfl7fx6z3f6hrwk17lqfimvc-bcachefs-module-6.18.38-1-lts.drv'...