these 2 derivations will be built:
  /nix/store/gi125b2sr3rxg48q8d473kkjf93mqx3r-snes9x-1.53-cross-compile.patch.drv
  /nix/store/qk7d1q3bxl9gkr6fxwarprm6jk3y0l1i-snes9x-gtk-1.61.drv
building '/nix/store/0361hxqf13apprmjciw09c3a3jghwdcp-snes9x-1.53-cross-compile.patch.drv'
snes9x-1.53-cross-compile.patch> 
snes9x-1.53-cross-compile.patch> trying https://mirror.its.dal.ca/gentoo-portage/games-emulation/snes9x/files/snes9x-1.53-cross-compile.patch
snes9x-1.53-cross-compile.patch>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
snes9x-1.53-cross-compile.patch>                                  Dload  Upload   Total   Spent    Left  Speed
snes9x-1.53-cross-compile.patch>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: mirror.its.dal.ca
snes9x-1.53-cross-compile.patch> Warning: Problem : timeout. Will retry in 1 seconds. 3 retries left.
snes9x-1.53-cross-compile.patch>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: mirror.its.dal.ca
snes9x-1.53-cross-compile.patch> Warning: Problem : timeout. Will retry in 2 seconds. 2 retries left.
snes9x-1.53-cross-compile.patch>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: mirror.its.dal.ca
snes9x-1.53-cross-compile.patch> Warning: Problem : timeout. Will retry in 4 seconds. 1 retries left.
snes9x-1.53-cross-compile.patch>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: mirror.its.dal.ca
snes9x-1.53-cross-compile.patch> error: cannot download snes9x-1.53-cross-compile.patch from any mirror
error: Cannot build '/nix/store/0361hxqf13apprmjciw09c3a3jghwdcp-snes9x-1.53-cross-compile.patch.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/6iasyzm2ym76fgcbkh6kq2zkf2wqc0l6-snes9x-1.53-cross-compile.patch
       Last 12 log lines:
       >
       > trying https://mirror.its.dal.ca/gentoo-portage/games-emulation/snes9x/files/snes9x-1.53-cross-compile.patch
       >   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
       >                                  Dload  Upload   Total   Spent    Left  Speed
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: mirror.its.dal.ca
       > Warning: Problem : timeout. Will retry in 1 seconds. 3 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: mirror.its.dal.ca
       > Warning: Problem : timeout. Will retry in 2 seconds. 2 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: mirror.its.dal.ca
       > Warning: Problem : timeout. Will retry in 4 seconds. 1 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: mirror.its.dal.ca
       > error: cannot download snes9x-1.53-cross-compile.patch from any mirror
       For full logs, run:
         nix log /nix/store/0361hxqf13apprmjciw09c3a3jghwdcp-snes9x-1.53-cross-compile.patch.drv
error: build of resolved derivation '/nix/store/0361hxqf13apprmjciw09c3a3jghwdcp-snes9x-1.53-cross-compile.patch.drv' failed
error: Cannot build '/nix/store/qk7d1q3bxl9gkr6fxwarprm6jk3y0l1i-snes9x-gtk-1.61.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/6fk7hbjxm9i9c7xczf6xmwc45yq36kv1-snes9x-gtk-1.61