Partial build log
this derivation will be built:
/nix/store/f0as6561i1dzgvicnskcbsi6x6441pay-source.drv
building '/nix/store/ka3nv8crn50dahx8xjana6ijlf1fl5ly-source.drv'...
source> trying https://github.com/att/ast/archive/2020.0.0.tar.gz
source> % Total % Received % Xferd Average Speed Time Time Time Current
source> Dload Upload Total Spent Left Speed
source> 100 105 100 105 0 0 396 0 --:--:-- --:--:-- --:--:-- 397
source> unpacking source archive /build/2020.0.0.tar.gz
source> tar: This does not look like a tar archive
source> gzip: stdin: not in gzip format
source> tar: Child returned status 1
source> tar: Error is not recoverable: exiting now
source> do not know how to unpack source archive /build/2020.0.0.tar.gz
error: builder for '/nix/store/ka3nv8crn50dahx8xjana6ijlf1fl5ly-source.drv' failed with exit code 1
error: