unpacking 'https://github.com/NixOS/nixpkgs/archive/56c02bc00adcf003215cc4bd996d6efaf4cff188.tar.gz' into the Git cache...
unpacking 'https://github.com/NixOS/nixpkgs/archive/e7a3ca8092b61ff85b6a45bf863ea2b2d6a661b3.tar.gz' into the Git cache...
these 6 derivations will be built:
  /nix/store/7900gwk2m1g0nspvw6aymc8kj7v61rxn-rustc-bootstrap-1.98.0.drv
  /nix/store/pcf4v288bfkh3y90wcv82qci39i71aln-rustc-bootstrap-wrapper-1.98.0.drv
  /nix/store/ywvfx1s4qqvnzb456jnd5fflpnnq62r6-cargo-bootstrap-1.98.0.drv
  /nix/store/h2mc5gzi0kqays4b75vwlm940varskhm-rustc-1.98.0.drv
  /nix/store/imaq1y4hcwjmxlyylzqypjriixgj2vb8-rustc-wrapper-1.98.0.drv
  /nix/store/qf914syjlrmc9nqvvaips8rbx2hrz46r-bcachefs-module-6.18.46-1-lts.drv
these 2 paths will be fetched (227.87 MiB download, 615.42 MiB unpacked):
  /nix/store/ihln1jf4znsh3grm3c8xff9j434fl625-linux-6.18.45
  /nix/store/qb1vm5aig0w3vp40bs508aif5fjqhky2-linux-6.18.45-dev
copying path '/nix/store/ihln1jf4znsh3grm3c8xff9j434fl625-linux-6.18.45' from 'https://cache.nixos.org'...
building '/nix/store/7900gwk2m1g0nspvw6aymc8kj7v61rxn-rustc-bootstrap-1.98.0.drv'...
copying path '/nix/store/qb1vm5aig0w3vp40bs508aif5fjqhky2-linux-6.18.45-dev' from 'https://cache.nixos.org'...
warning: download buffer is full; consider increasing the 'download-buffer-size' setting
building '/nix/store/pcf4v288bfkh3y90wcv82qci39i71aln-rustc-bootstrap-wrapper-1.98.0.drv'...
building '/nix/store/ywvfx1s4qqvnzb456jnd5fflpnnq62r6-cargo-bootstrap-1.98.0.drv'...
building '/nix/store/h2mc5gzi0kqays4b75vwlm940varskhm-rustc-1.98.0.drv'...
building '/nix/store/imaq1y4hcwjmxlyylzqypjriixgj2vb8-rustc-wrapper-1.98.0.drv'...
building '/nix/store/qf914syjlrmc9nqvvaips8rbx2hrz46r-bcachefs-module-6.18.46-1-lts.drv'...