Partial build log
this derivation will be built:
/nix/store/000b3cxil31b7phg37l8xbjd60x31a5c-mpack-1.6.tar.gz.drv
building '/nix/store/4achax13ziwky77wb0aqmlwp5iqzdn3i-mpack-1.6.tar.gz.drv'...
mpack> trying http://ftp.andrew.cmu.edu/pub/mpack/mpack-1.6.tar.gz
mpack> % Total % Received % Xferd Average Speed Time Time Time Current
mpack> Dload Upload Total Spent Left Speed
mpack> 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0curl: (6) Could not resolve host: ftp.andrew.cmu.edu
mpack> Warning: Problem : timeout. Will retry in 1 seconds. 3 retries left.
mpack> 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0curl: (6) Could not resolve host: ftp.andrew.cmu.edu
mpack> Warning: Problem : timeout. Will retry in 2 seconds. 2 retries left.
mpack> 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0curl: (6) Could not resolve host: ftp.andrew.cmu.edu
mpack> Warning: Problem : timeout. Will retry in 4 seconds. 1 retries left.
mpack> 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0curl: (6) Could not resolve host: ftp.andrew.cmu.edu
mpack> error checking the existence of file:///dev/null/sha256/0k590z96509k96zxmhv72gkwhrlf55jkmyqlzi72m61r7axhhh97:
mpack> curl: (37) Couldn't open file /dev/null/sha256/0k590z96509k96zxmhv72gkwhrlf55jkmyqlzi72m61r7axhhh97
mpack> error: cannot download mpack-1.6.tar.gz from any mirror
error: builder for '/nix/store/4achax13ziwky77wb0aqmlwp5iqzdn3i-mpack-1.6.tar.gz.drv' failed with exit code 1
error: