The source code cannot be downloaded on an IPv6-only node and accordingly cannot be compiled.
$ git clone https://github.com/int08h/roughenough.git
Cloning into 'roughenough'...
fatal: unable to access 'https://github.com/int08h/roughenough.git/': Failed to connect to github.com port 443 after 32 ms: Couldn't connect to server
$ wget "https://github.com/int08h/roughenough/archive/refs/heads/master.zip"
--2023-10-12 18:34:42-- https://github.com/int08h/roughenough/archive/refs/heads/master.zip
Resolving github.com (github.com)... 140.82.121.4
Connecting to github.com (github.com)|140.82.121.4|:443... failed: Network is unreachable.
Hmm, this doesn't look specific to this project. Seems to be a general issue with the system doing the clone (this should impact anything accessing github). Closing.
The source code cannot be downloaded on an IPv6-only node and accordingly cannot be compiled.