updating 'refs/heads/master'
  from eed4528c2a6bb1e3e397e69df6eea8832e760c48
  to   4f1985377bcaefd19a345f8aaaaa57b0b438d9d8
Generating pack...
Done counting 78 objects.
Result has 57 objects.
Deltifying 57 objects...
 100% (57/57) done
Writing 57 objects...
 100% (57/57) done
Total 57 (delta 41), reused 0 (delta 0)
error: unable to create temporary sha1 filename ./objects/tmp_obj_JX5T4W: Permission denied

fatal: failed to write object
unpack unpacker exited with error code
ng refs/heads/master n/a (unpacker error)
error: failed to push to 'ssh://doc@*url*/usr/www/git/file.git'