Partial build log
this derivation will be built:
/nix/store/6x53mqwiwqi5k70y2ggl90m612gqlwng-20_svg_attribute_syntax.drv
building '/nix/store/g07cqkyc4k4812wj3920h0yn5dwagm4n-20_svg_attribute_syntax.drv'...
20_svg_attribute_syntax> trying https://sources.debian.org/data/main/p/plotutils/2.6-9/debian/patches/20_svg_attribute_syntax
20_svg_attribute_syntax> % Total % Received % Xferd Average Speed Time Time Time Current
20_svg_attribute_syntax> Dload Upload Total Spent Left Speed
20_svg_attribute_syntax> 0 265 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
20_svg_attribute_syntax> curl: (22) The requested URL returned error: 404
20_svg_attribute_syntax> error checking the existence of file:///dev/null/sha256/0vy089w00x2zh87igv3dcqq7kggqxpc4javb694pa5xl5bvddnqk:
20_svg_attribute_syntax> curl: (37) Couldn't open file /dev/null/sha256/0vy089w00x2zh87igv3dcqq7kggqxpc4javb694pa5xl5bvddnqk
20_svg_attribute_syntax> error: cannot download 20_svg_attribute_syntax from any mirror
error: builder for '/nix/store/g07cqkyc4k4812wj3920h0yn5dwagm4n-20_svg_attribute_syntax.drv' failed with exit code 1
error: