Dependencies would be pulled into snapshot:
    [snap1]: Snapshot from mirror [wheezy-main]: http://mirror.yandex.ru/debian/ wheezy
from snapshot:
    [snap2]: Snapshot from mirror [wheezy-non-free]: http://mirror.yandex.ru/debian/ wheezy
and result would be saved as new snapshot snap3.
Loading packages (56782)...
Building indexes...
[+] mame_0.146-5_amd64 added
[+] unrar_1:4.1.4-1_amd64 added
[+] mame_0.146-5_i386 added
[+] unrar_1:4.1.4-1_i386 added

Snapshot snap3 successfully created.
You can run 'aptly publish snapshot snap3' to publish snapshot as Debian repository.