podman-remote: podman push - invalid memory address or nil pointer dereference

[bszeti]

Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line)

/kind bug

Description

Using podman-remote on MacOS with a remote Fedora 31. Command 'podman push' drops a go error:

$ podman push 56d835d0d82f docker://quay.io/bszeti/podmantest:latest
panic: runtime error: invalid memory address or nil pointer dereference

Steps to reproduce the issue:

1. Pull or build and image (in my case image Id: 56d835d0d82f)
2. Try to push the image to a remote registry using podman-remote
   podman push 56d835d0d82f docker://quay.io/bszeti/podmantest:latest

Describe the results you received:
Command drops error.

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x50 pc=0x1ec883c]

goroutine 1 [running]:
main.pushCmd(0x33552e0, 0x0, 0x0)
	cmd/podman/push.go:97 +0x29c
main.glob..func57(0x332fb40, 0xc000393b80, 0x2, 0x2, 0x0, 0x0)
	cmd/podman/push.go:36 +0x94
github.com/spf13/cobra.(*Command).execute(0x332fb40, 0xc0000bc020, 0x2, 0x2, 0x332fb40, 0xc0000bc020)
	vendor/github.com/spf13/cobra/command.go:826 +0x465
github.com/spf13/cobra.(*Command).ExecuteC(0x3331440, 0x6, 0xc000044047, 0x31)
	vendor/github.com/spf13/cobra/command.go:914 +0x2fc
github.com/spf13/cobra.(*Command).Execute(...)
	vendor/github.com/spf13/cobra/command.go:864
main.main()
	cmd/podman/main.go:160 +0xb0

Describe the results you expected:
Successful push.

Additional information you deem important (e.g. issue happens only occasionally):
Same command works without issue if it's executed on the Linux host.

Output of podman version:

Client:
Version:            1.6.1-dev
RemoteAPI Version:  1
Go Version:         go1.12.9
OS/Arch:            darwin/amd64

Service:
Version:            1.6.2
RemoteAPI Version:  1
Go Version:         go1.13.1
OS/Arch:            linux/amd64

Output of podman info --debug:

client:
  Connection: unix:/run/podman/io.podman
  Connection Type: DirectConnection
  OS Arch: darwin/amd64
  Podman Version: 1.6.1-dev
  RemoteAPI Version: 1
host:
  arch: amd64
  buildah_version: 1.11.3
  cpus: 1
  distribution:
    distribution: fedora
    version: "31"
  eventlogger: journald
  hostname: localhost.localdomain
  kernel: 5.3.15-300.fc31.x86_64
  mem_free: 409231360
  mem_total: 2084048896
  os: linux
  swap_free: 2112167936
  swap_total: 2147479552
  uptime: 2h 45m 59.63s (Approximately 0.08 days)
insecure registries:
  registries: null
registries:
  registries: null
store:
  containers: 7
  graph_driver_name: overlay
  graph_driver_options: map[overlay.mountopt:nodev,metacopy=on]
  graph_root: /var/lib/containers/storage
  graph_status:
    backing_filesystem: extfs
    native_overlay_diff: "false"
    supports_d_type: "true"
  images: 21
  run_root: /var/run/containers/storage

Package info (e.g. output of rpm -q podman or apt list podman):

MacOS: podman-v1.6.0-28-gdac7889d
Linux host: podman-1.6.2-2.fc31.x86_64

Additional environment details (AWS, VirtualBox, physical, etc.):
MacOS: 10.15.2
Remote linux: Fedora 31

[github-actions]

A friendly reminder that this issue had no activity for 30 days.

[rhatdan]

I believe this is still an issue.