Partial build log
this derivation will be built:
/nix/store/66asrjgnzqi5icq5l3kjb584p59hs9rs-Sylk-3.0.1-x86_64.AppImage.drv
building '/nix/store/k7jmv1i2z5i7s2a0b7qnv9a8y89idk6g-Sylk-3.0.1-x86_64.AppImage.drv'...
Sylk> error checking the existence of file:///dev/null//sha256-VgepO7LHFmNKq/H0RFcIkafgtiVGt8K/LdiCO5Dw2s4=:
Sylk> curl: (37) Couldn't open file /dev/null//sha256-VgepO7LHFmNKq/H0RFcIkafgtiVGt8K/LdiCO5Dw2s4=
Sylk> trying http://download.ag-projects.com/Sylk/Sylk-3.0.1-x86_64.AppImage
Sylk> % Total % Received % Xferd Average Speed Time Time Time Current
Sylk> Dload Upload Total Spent Left Speed
Sylk> 100 272 100 272 0 0 683 0 --:--:-- --:--:-- --:--:-- 681
Sylk> 0 229 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
Sylk> curl: (22) The requested URL returned error: 404
Sylk> error: cannot download Sylk-3.0.1-x86_64.AppImage from any mirror
error: builder for '/nix/store/k7jmv1i2z5i7s2a0b7qnv9a8y89idk6g-Sylk-3.0.1-x86_64.AppImage.drv' failed with exit code 1
error: