Partial build log
this derivation will be built:
/nix/store/imkypk43r6xpf9a1ybbi4ldxcz7wqdfb-ardour.drv
building '/nix/store/imkypk43r6xpf9a1ybbi4ldxcz7wqdfb-ardour.drv'...
ardour> exporting git://git.ardour.org/ardour/ardour.git (rev 6.9) into /nix/store/vy5832hsh01b5awdq12f2yf4mh0bac54-ardour
ardour> Initialized empty Git repository in /nix/store/vy5832hsh01b5awdq12f2yf4mh0bac54-ardour/.git/
ardour> remote: Enumerating objects: 4837, done.
ardour> remote: Counting objects: 100% (4837/4837), done.
ardour> remote: Compressing objects: 100% (4137/4137), done.
ardour> remote: Total 4837 (delta 1407), reused 2129 (delta 627), pack-reused 0
ardour> Receiving objects: 100% (4837/4837), 15.83 MiB | 3.47 MiB/s, done.
ardour> Resolving deltas: 100% (1407/1407), done.
ardour> From git://git.ardour.org/ardour/ardour
ardour> * tag 6.9 -> FETCH_HEAD
ardour> Switched to a new branch 'fetchgit'
ardour> removing `.git'...