Partial build log
this derivation will be built:
/nix/store/2mc6qjd152fh4069879ps5ihznpg2ff3-writechar.patch.drv
building '/nix/store/8cc6lnb8f44p9d2s73b8h7jxy8pjyb5q-writechar.patch.drv'...
writechar.patch> error checking the existence of file:///dev/null/sha256/1kkg4gbpm4hp87l25zw2a3r9c58g7vvgzcqgiman734i66zsbb9l:
writechar.patch> curl: (37) Couldn't open file /dev/null/sha256/1kkg4gbpm4hp87l25zw2a3r9c58g7vvgzcqgiman734i66zsbb9l
writechar.patch> trying https://src.fedoraproject.org/cgit/rpms/dbus-c++.git/plain/dbus-c++-writechar.patch?id=7f371172f5c
writechar.patch> % Total % Received % Xferd Average Speed Time Time Time Current
writechar.patch> Dload Upload Total Spent Left Speed
writechar.patch> 100 345 100 345 0 0 497 0 --:--:-- --:--:-- --:--:-- 498
writechar.patch> 0 3565 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
writechar.patch> curl: (22) The requested URL returned error: 404
writechar.patch> error: cannot download writechar.patch from any mirror
error: builder for '/nix/store/8cc6lnb8f44p9d2s73b8h7jxy8pjyb5q-writechar.patch.drv' failed with exit code 1
error: