docker build . return Twiki error

[danielgomezrico]

Hi

I'm running docker build . and getting:

...
twiki/robots.txt
 ---> 298f77061706
Removing intermediate container 51d8245b88e4
Step 6 : ADD perl/cpanfile /tmp/cpanfile
 ---> be879176a910
Removing intermediate container d4d49be4321c
Step 7 : ADD http://cpansearch.perl.org/src/THALJEF/Pinto-0.09995/etc/cpanm /tmp/cpanm
Downloading [==================================================>] 268.4 kB/268.4 kB
 ---> cb006a2320db
Removing intermediate container 953c7dd56bc9
Step 8 : RUN chmod +x /tmp/cpanm && /tmp/cpanm -l /var/www/twiki/lib/CPAN --installdeps /tmp/ && rm -rf /.cpanm /tmp/cpanm /tmp/cpanfile /var/www/twiki/lib/CPAN/man
 ---> Running in 060089438a7f
/bin/sh: 1: /tmp/cpanm: Text file busy
The command '/bin/sh -c chmod +x /tmp/cpanm && /tmp/cpanm -l /var/www/twiki/lib/CPAN --installdeps /tmp/ && rm -rf /.cpanm /tmp/cpanm /tmp/cpanfile /var/www/twiki/lib/CPAN/man' returned a non-zero code: 2

Why?