unpacking 'https://github.com/NixOS/nixpkgs/archive/a1bab9e494f5f4939442a57a58d0449a109593fe.tar.gz' into the Git cache...
these 3 derivations will be built:
  /nix/store/2pa23a0gan94svms6xg201fi9lx5q2c2-rustc-1.93.1.drv
  /nix/store/aw7kkn754li1339bp5a70jipj4fil2gw-rustc-wrapper-1.93.1.drv
  /nix/store/9cnn7lxv8xlf3b4743cpngifw7wn8289-bcachefs-module-7.0.0-26-generic.drv
these 8 paths will be fetched (142.56 MiB download, 1136.77 MiB unpacked):
  /nix/store/rm8isfm4fd14is3fv3h4m459rbiy91bx-clang-21.1.8
  /nix/store/xibf2ayyaljj1r7wgjf4n7n4vg5z8n2v-clang-21.1.8-lib
  /nix/store/6n5r46icm0bl55s9p5z2zgcv93m39r5l-clang-wrapper-21.1.8
  /nix/store/cw5ha8x0x0819q7g92zkriz8mfzl4jmk-gcc-15.2.0
  /nix/store/ydfiyj1jc570z9fgsabm1arvr458ckp9-gcc-wrapper-15.2.0
  /nix/store/vl2fblcbq55b195y7ip2qvs906a4s3sb-rust-bindgen-0.72.1
  /nix/store/mqhrlz4kx87s45q42175jyzq4galmvb4-rust-bindgen-unwrapped-0.72.1
  /nix/store/dy13n7152mld755vbpw7fd01ycrnx9vj-stdenv-linux
copying path '/nix/store/xibf2ayyaljj1r7wgjf4n7n4vg5z8n2v-clang-21.1.8-lib' from 'https://cache.nixos.org'...
copying path '/nix/store/cw5ha8x0x0819q7g92zkriz8mfzl4jmk-gcc-15.2.0' from 'https://cache.nixos.org'...
building '/nix/store/9cnn7lxv8xlf3b4743cpngifw7wn8289-bcachefs-module-7.0.0-26-generic.drv'...