Partial build log
this derivation will be built:
/nix/store/5q9g0ay6hj3v2r2974n0naa3d0d4vfyf-pari_2_11.patch.drv
building '/nix/store/vld4p0sfnhxnbcvh5jwm0cf2v6p0jq3a-pari_2_11.patch.drv'...
pari_2_11.patch> trying https://git.sagemath.org/sage.git/plain/build/pkgs/giac/patches/pari_2_11.patch?id=21ba7540d385a9864b44850d6987893dfa16bfc0
pari_2_11.patch> % Total % Received % Xferd Average Speed Time Time Time Current
pari_2_11.patch> Dload Upload Total Spent Left Speed
pari_2_11.patch> 0 9115 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
pari_2_11.patch> curl: (22) The requested URL returned error: 404
pari_2_11.patch> error checking the existence of file:///dev/null/sha256/sha256-vEo/5MNzMdYRPWgLFPsDcMT1W80Qzj4EPBjx/B8j68k=:
pari_2_11.patch> curl: (37) Couldn't open file /dev/null/sha256/sha256-vEo/5MNzMdYRPWgLFPsDcMT1W80Qzj4EPBjx/B8j68k=
pari_2_11.patch> error: cannot download pari_2_11.patch from any mirror
error: builder for '/nix/store/vld4p0sfnhxnbcvh5jwm0cf2v6p0jq3a-pari_2_11.patch.drv' failed with exit code 1
error: