| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/docker/docker/pkg/idtools | |
| github.com/docker/docker/pkg/reexec | Package reexec facilitates the busybox style reexec of a binary. |
| golang.org/x/sys/windows | Package windows contains an interface to the low-level operating system primitives. |
| os | Package os provides a platform-independent interface to operating system functionality. |