poudriere: problems building ports

[O. Hartmann]

Running poudriere (most recent installation from ports) on recent CURRENT
(FreeBSD 11.0-CURRENT #25 r294905: Wed Jan 27 08:52:04 CET 2016 amd64) leads to
problems when building the following ports:

www/nginx: Failed: fetch

and 

print/tex-formats: Failed: build-depends

The latter leads to a bunch of dependend, unbuilt ports, so texlive doesn
build, for instance.

Building www/nginx on the same host via the "manual" way works flawless - I can
fetch the tarball with no error. Also the build of texlive works, too.

The logfile presents me with the following errors:
www/nginx:

===>  License BSD2CLAUSE accepted by the user
===>  Found saved configuration for nginx-1.8.0_3,2
=> nginx-1.8.0.tar.gz doesn't seem to exist in /portdistfiles/.
=> Attempting to fetch http://nginx.org/download/nginx-1.8.0.tar.gz
nginx-1.8.0.tar.gz                                       0  B    0  Bps
[...]
=> Attempting to fetch
http://distcache.FreeBSD.org/ports-distfiles/nginx_udplog_module-1.0.0.tar.gz
fetch:
http://distcache.FreeBSD.org/ports-distfiles/nginx_udplog_module-1.0.0.tar.gz:
Not Found => Couldn't fetch it - please try to retrieve this => port manually
into /portdistfiles/ and try again. *** Error code 1

The fun part is: On my attempt to fetch the tarball via "make fetch" in
www/nginx the first source for the tarball works. Since I build many other
ports via the very same jail (in a rather vanilla setup taken from the
handbook), i do not suspect any network problems or specialities concerning
http/ftp proxy (do not use proxy either way).


Mot confusing is 

print/tex-formats:
[...]
 Extracting texlive-texmf-20150523_3: ......
pkg-static: archive_read_extract(): Lzma library error:  No progress is possible

so all depending ports fail to build. I see no problems on a non-jailed build.

Is there a rsource limit set for the jail supposed to build the port running in
RAM or diskspace shortage I do not see?

Thanks for your suggestions/help and regards,

Oliver