| errors | Package errors implements functions to manipulate errors. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/docker/docker/pkg/archive | Package archive provides helper functions for dealing with archive files. |
| github.com/docker/docker/pkg/chrootarchive | |
| github.com/docker/docker/pkg/ioutils | |
| github.com/docker/docker/pkg/log | |
| github.com/docker/docker/pkg/mount | |
| github.com/docker/docker/utils | |
| os | Package os provides a platform-independent interface to operating system functionality. |
| path | Package path implements utility routines for manipulating slash-separated paths. |
| time | Package time provides functionality for measuring and displaying time. |