these 2 derivations will be built:
  /nix/store/i7z23pf4qiqfwxypgh61w51rx8k2z5k9-faac-1_30.tar.gz.drv
  /nix/store/qwc7f4ri2lr57c28ia5b5l8d32rsv6iy-faac-1.30.drv
this path will be fetched (407.2 KiB download, 1.7 MiB unpacked):
  /nix/store/hbjz8dsv0vg2cj403qkd5fsapnp2s65y-mp4v2-5.0.1
error: Cannot build '/nix/store/vjxmyabxvgn47l2d72n2ibcwlziknf9j-faac-1_30.tar.gz.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ab4ql8cikj303jdry3ksaw2mxarg2fwh-faac-1_30.tar.gz
       Last 25 log lines:
       > trying https://freefr.dl.sourceforge.net/sourceforge/faac/faac-1_30.tar.gz
       >   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
       >                                  Dload  Upload   Total   Spent    Left  Speed
       >   0   303    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       >   0   154    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
       > curl: (22) The requested URL returned error: 404
       >
       > trying https://osdn.dl.sourceforge.net/sourceforge/faac/faac-1_30.tar.gz
       >   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
       >                                  Dload  Upload   Total   Spent    Left  Speed
       > 100   162  100   162    0     0    317      0 --:--:-- --:--:-- --:--:--   317
       >   0   154    0     0    0     0      0      0 --:--:--  0:00:02 --:--:--     0
       > curl: (22) The requested URL returned error: 404
       >
       > trying https://kent.dl.sourceforge.net/sourceforge/faac/faac-1_30.tar.gz
       >   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
       >                                  Dload  Upload   Total   Spent    Left  Speed
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: kent.dl.sourceforge.net
       > Warning: Problem : timeout. Will retry in 1 seconds. 3 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: kent.dl.sourceforge.net
       > Warning: Problem : timeout. Will retry in 2 seconds. 2 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: kent.dl.sourceforge.net
       > Warning: Problem : timeout. Will retry in 4 seconds. 1 retries left.
       >   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: kent.dl.sourceforge.net
       > error: cannot download faac-1_30.tar.gz from any mirror
       For full logs, run:
         nix log /nix/store/vjxmyabxvgn47l2d72n2ibcwlziknf9j-faac-1_30.tar.gz.drv
error: build of resolved derivation '/nix/store/vjxmyabxvgn47l2d72n2ibcwlziknf9j-faac-1_30.tar.gz.drv' failed
error: Cannot build '/nix/store/qwc7f4ri2lr57c28ia5b5l8d32rsv6iy-faac-1.30.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/483ranbrzwxb29di6l7vb8wr2rkciy3k-faac-1.30