Partial build log
this derivation will be built:
/nix/store/ds03338dwl2ss3i0ldjaa1vkk0a74zjc-gcl-2.6.12-gcc5.patch.drv
building '/nix/store/9clf06s40a6x6x0k1lksxiqrkjc8xys2-gcl-2.6.12-gcc5.patch.drv'...
gcl> trying https://gitweb.gentoo.org/repo/gentoo.git/plain/dev-lisp/gcl/files/gcl-2.6.12-gcc5.patch
gcl> % Total % Received % Xferd Average Speed Time Time Time Current
gcl> Dload Upload Total Spent Left Speed
gcl> 0 8609 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
gcl> curl: (22) The requested URL returned error: 404
gcl> error checking the existence of file:///dev/null/sha256/00jbsn0qp8ki2w7dx8caha7g2hr9076xa6bg48j3qqqncff93zdh:
gcl> curl: (37) Couldn't open file /dev/null/sha256/00jbsn0qp8ki2w7dx8caha7g2hr9076xa6bg48j3qqqncff93zdh
gcl> error: cannot download gcl-2.6.12-gcc5.patch from any mirror
error: builder for '/nix/store/9clf06s40a6x6x0k1lksxiqrkjc8xys2-gcl-2.6.12-gcc5.patch.drv' failed with exit code 1
error: