unpacking 'https://github.com/NixOS/nixpkgs/archive/a5cbcfe954791221bfffe2307f7d1a1bf61a871e.tar.gz' into the Git cache...
these 3 derivations will be built:
  /nix/store/l7mql4mn34rfx7hvixspdqskbrcddxjn-rustc-1.97.1.drv
  /nix/store/j03isdxpqpm0qbq32kz92a2mm4aggkzg-rustc-wrapper-1.97.1.drv
  /nix/store/4x3bmm5mp94rybgbzcn9y9qig6b1wsbn-bcachefs-module-7.1.6-arch1-1.drv
these 11 paths will be fetched (542.20 MiB download, 1673.09 MiB unpacked):
  /nix/store/a1jbdq0szrvyrla7pla7hvlz8khjjbjw-cargo-bootstrap-1.97.1
  /nix/store/jfdn7bk2k40afmmaqv85b8v043jrigm5-cmake-4.3.4
  /nix/store/0dmj6qp810qflchcl4phcw7fmxnqcaa5-linux-7.1.5
  /nix/store/wfal4k8pci142mcpx9nimq8ff9g0zsgj-linux-7.1.5-dev
  /nix/store/4jvagbzp2zdjn32q8i2mfxrwj239nfh4-llvm-21.1.8
  /nix/store/nyl9mbjlvi046d7i6c1qci1bkc3n97xs-llvm-21.1.8-dev
  /nix/store/haxjvirj4hk92rpjhx0qygqsf3a5iimz-perl-5.42.0
  /nix/store/gh92jc3sgw1lr7372arhjbn15zwxir7a-python3-minimal-3.14.6
  /nix/store/5sq7f9y0miafjngnmrgbkbq57q06y787-rust-lib-src
  /nix/store/gxsncs522ajv9ynw09lf38a0snaz82sm-rustc-bootstrap-1.97.1
  /nix/store/hv06hf22knb2r165hpkb9zv4hf68n9sj-rustc-bootstrap-wrapper-1.97.1
copying path '/nix/store/0dmj6qp810qflchcl4phcw7fmxnqcaa5-linux-7.1.5' from 'https://cache.nixos.org'...
copying path '/nix/store/5sq7f9y0miafjngnmrgbkbq57q06y787-rust-lib-src' from 'https://cache.nixos.org'...
copying path '/nix/store/haxjvirj4hk92rpjhx0qygqsf3a5iimz-perl-5.42.0' from 'https://cache.nixos.org'...
copying path '/nix/store/gh92jc3sgw1lr7372arhjbn15zwxir7a-python3-minimal-3.14.6' from 'https://cache.nixos.org'...
copying path '/nix/store/jfdn7bk2k40afmmaqv85b8v043jrigm5-cmake-4.3.4' from 'https://cache.nixos.org'...
copying path '/nix/store/4jvagbzp2zdjn32q8i2mfxrwj239nfh4-llvm-21.1.8' from 'https://cache.nixos.org'...
copying path '/nix/store/gxsncs522ajv9ynw09lf38a0snaz82sm-rustc-bootstrap-1.97.1' from 'https://cache.nixos.org'...
copying path '/nix/store/wfal4k8pci142mcpx9nimq8ff9g0zsgj-linux-7.1.5-dev' from 'https://cache.nixos.org'...
building '/nix/store/4x3bmm5mp94rybgbzcn9y9qig6b1wsbn-bcachefs-module-7.1.6-arch1-1.drv'...