Installing bash-completion
warning: there are multiple derivations named 'bash-completion-2.11'; using the first one
installing 'bash-completion-2.11'
these derivations will be built:
  /opt/personal/nix/store/3mixbgi4kgm2jbqr1ald573mhbzz1806-source.drv
  /opt/personal/nix/store/7iq5ln22fqq8h8p2qr8qrl57ph4ifqmg-bash-completion-2.11.drv
building '/opt/personal/nix/store/3mixbgi4kgm2jbqr1ald573mhbzz1806-source.drv'...
trying https://github.com/scop/bash-completion/archive/2.11.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   126  100   126    0     0    386      0 --:--:-- --:--:-- --:--:--   386
100  349k    0  349k    0     0   382k      0 --:--:-- --:--:-- --:--:--  382k
unpacking source archive /private/var/folders/1w/brt5v4lj1k71055bghsw8nfm000xbj/T/nix-build-source.drv-0/2.11.tar.gz
hash mismatch in fixed-output derivation '/opt/personal/nix/store/mcll1q71rick2kpk0pldabmfby6c9jr6-source':
  wanted: sha256:0m3brd5jx7w07h8vxvvcmbyrlnadrx6hra3cvx6grzv6rin89liv
  got:    sha256:1kyj62wp4sd8629r1gx5ggnkkjfkwvggj98d6cwlx14y3iri0l87
cannot build derivation '/opt/personal/nix/store/7iq5ln22fqq8h8p2qr8qrl57ph4ifqmg-bash-completion-2.11.drv': 1 dependencies couldn't be built
error: build of '/opt/personal/nix/store/7iq5ln22fqq8h8p2qr8qrl57ph4ifqmg-bash-completion-2.11.drv' failed