==> Creating clean working copy [build]...done
==> Making package: pip3line 2.6.0-4 (Fri Oct  9 14:04:12 EDT 2015)
==> Retrieving sources...
  -> Found v2.6.0.tar.gz
  -> Found libdir.patch
==> Validating source files with sha512sums...
    v2.6.0.tar.gz ... Passed
    libdir.patch ... Passed
==> Making package: pip3line 2.6.0-4 (Fri Oct  9 14:04:12 EDT 2015)
==> Checking runtime dependencies...
==> Installing missing dependencies...
resolving dependencies...
:: There are 4 providers available for libgl:
:: Repository extra
   1) mesa-libgl  2) nvidia-304xx-libgl  3) nvidia-340xx-libgl  4) nvidia-libgl

Enter a number (default=1): 
looking for conflicting packages...
:: gcc-libs-multilib and gcc-libs are in conflict. Remove gcc-libs? [y/N] error: unresolvable package conflicts detected
error: failed to prepare transaction (conflicting dependencies)

:: gcc-libs-multilib and gcc-libs are in conflict
==> ERROR: 'pacman' failed to install missing dependencies.
==> WARNING: Failed to remove installed dependencies.
==> ERROR: Build failed, check /chroot/x86_64/build/build