Otherwise:
Mar 25 13:33:22 nix-bitcoin systemd[1]: Starting Bitcoin daemon...
Mar 25 13:33:22 nix-bitcoin f3ickn20fqrz5gd0zm7hgm247b9ajdl8-unit-script-bitcoind-pre-start[1883]: chmod: cannot access '/var/lib/bitcoind/blocks': No such fi>
Mar 25 13:33:22 nix-bitcoin systemd[1]: bitcoind.service: Control process exited, code=exited status=1
Mar 25 13:33:22 nix-bitcoin systemd[1]: bitcoind.service: Failed with result 'exit-code'.
The strategy of invoking node2nix inside a derivation (installPhase in
this case) does not work, as under NixOS installations there is no
network traffic allowed during a derivation build. Hence, we move
node2nix outside and rewrite the packaging into the modules.
Also switch to callPackage instead of plain imports. This could
probably be done on all other imported packages inside of
nix-bitcoin-pkgs.nix.
Clemens Fruhwirth