{s10:~} whoami
root
{s10:~} cpan CPAN
CPAN: Storable loaded ok (v2.41)
Reading '/var/root/.cpan/Metadata'
  Database was generated on Thu, 08 Oct 2015 10:41:02 GMT
Running install for module 'CPAN'
Running make for A/AN/ANDK/CPAN-2.10.tar.gz
CPAN: Digest::SHA loaded ok (v5.84_01)
CPAN: Compress::Zlib loaded ok (v2.069)
Checksum for /var/root/.cpan/sources/authors/id/A/AN/ANDK/CPAN-2.10.tar.gz ok
CPAN: File::Temp loaded ok (v0.23)
CPAN: Parse::CPAN::Meta loaded ok (v1.4417)
CPAN: CPAN::Meta loaded ok (v2.150005)
CPAN: Module::CoreList loaded ok (v3.03)

  CPAN.pm: Building A/AN/ANDK/CPAN-2.10.tar.gz


Checking if your kit is complete...
Looks good
Generating a Unix-style Makefile
Writing Makefile for CPAN
Writing MYMETA.yml and MYMETA.json

<snip>

All tests successful.
Files=30, Tests=701, 28 wallclock secs ( 0.39 usr  0.06 sys + 18.83 cusr  3.16 csys = 22.44 CPU)
Result: PASS
  ANDK/CPAN-2.10.tar.gz
  /usr/bin/make test -- OK
Running make install
Manifying 2 pod documents
Manifying 16 pod documents
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ERROR: Can't create '/usr/bin'
Do not have write permissions on '/usr/bin'
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 at -e line 1.
make: *** [pure_perl_install] Error 1
  ANDK/CPAN-2.10.tar.gz
  /usr/bin/make install  -- NOT OK
{s10:~}