=> Bootstrap dependency digest>=20010302: found digest-20080510
WARNING: [bsd.prefs.mk] The package thunderbird-bin-20090825 misses DESTDIR support.
WARNING: [license.mk] Every package should define a LICENSE.
=> Fetching thunderbird-3.0b2pre.en-US.linux-i686.tar.bz2
Failed to change directory.
fetch: Unable to fetch expected file thunderbird-3.0b2pre.en-US.linux-i686.tar.bz2
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file thunderbird-3.0b2pre.en-US.linux-i686.tar.bz2
Failed to change directory.
fetch: Unable to fetch expected file thunderbird-3.0b2pre.en-US.linux-i686.tar.bz2
Can't change directory to thunderbird-bin-20090825: No such file or directory
fetch: Unable to fetch expected file thunderbird-3.0b2pre.en-US.linux-i686.tar.bz2
thunderbird-bin-20090825: No such file or directory.
fetch: Unable to fetch expected file thunderbird-3.0b2pre.en-US.linux-i686.tar.bz2
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file thunderbird-3.0b2pre.en-US.linux-i686.tar.bz2
thunderbird-bin-20090825: No such file or directory.
fetch: Unable to fetch expected file thunderbird-3.0b2pre.en-US.linux-i686.tar.bz2
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/mail/thunderbird-bin-nightly