intercept with --local-only and --docker-run crashes

[mleclercq]

Describe the bug

When running an intercept with --local-only and --docker-run telepresence crashes with the following error:

telepresence intercept my-deployment --local-only --docker-run -- alpine:latest
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x80 pc=0x101774fd2]

goroutine 1 [running]:
github.com/telepresenceio/telepresence/v2/pkg/client/cli/intercept.(*state).startInDocker(0xc000206050, {0x1027a2ac8, 0xc000a58b70}, {0xc0001a1510, 0xd}, {0xc00005e140, 0x43}, {0xc0005a59f0, 0x1, 0x8})
        github.com/telepresenceio/telepresence/v2@v2.13.1/pkg/client/cli/intercept/docker_run.go:200 +0x952
github.com/telepresenceio/telepresence/v2/pkg/client/cli/intercept.runCommand({0x1027a8438, 0xc00037c030}, {0x1027a2ac8, 0xc00056d230})
        github.com/telepresenceio/telepresence/v2@v2.13.1/pkg/client/cli/intercept/state.go:387 +0x497
github.com/telepresenceio/telepresence/v2/pkg/client.WithEnsuredState[...]({0x1027a2ac8, 0xc00056d230}, {0x1027a8438, 0xc00037c030}, 0x10001bb53, 0x10251b7f0?, 0x10251b7e0)
        github.com/telepresenceio/telepresence/v2@v2.13.1/pkg/client/ensured_state.go:39 +0x1b9
github.com/telepresenceio/telepresence/v2/pkg/client/cli/intercept.Run({0x1027a2ac8, 0xc00056d230}, {0x1027a8438?, 0xc00037c030?})
        github.com/telepresenceio/telepresence/v2@v2.13.1/pkg/client/cli/intercept/state.go:202 +0x170
github.com/datawire/telepresence-pro/pkg/client/cli/intercept.Run({0x1027a2ac8, 0xc00056d230}, {0x1027a8438?, 0xc00037c030?}, {0xc00032ac00, 0x24})
        github.com/datawire/telepresence-pro/pkg/client/cli/intercept/state.go:51 +0xbc
github.com/datawire/telepresence-pro/pkg/client/cli/intercept.(*Command).Run(0xc000384d80, 0xc000a0a900, {0xc0005a59e0, 0x2, 0x9})
        github.com/datawire/telepresence-pro/pkg/client/cli/intercept/intercept.go:238 +0x41e
github.com/spf13/cobra.(*Command).execute(0xc000a0a900, {0xc0005a5950, 0x9, 0x9})
        github.com/spf13/cobra@v1.6.1/command.go:916 +0x862
github.com/spf13/cobra.(*Command).ExecuteC(0xc000a0bb00)
        github.com/spf13/cobra@v1.6.1/command.go:1044 +0x3bd
github.com/telepresenceio/telepresence/v2/pkg/client/cli/output.Execute(0x1027a2ac8?)
        github.com/telepresenceio/telepresence/v2@v2.13.1/pkg/client/cli/output/output.go:114 +0x3d
github.com/telepresenceio/telepresence/v2/pkg/client/cli.Main({0x1027a2ac8, 0xc0009e1020})
        github.com/telepresenceio/telepresence/v2@v2.13.1/pkg/client/cli/main.go:68 +0x30f
main.main()
        github.com/datawire/telepresence-pro/cmd/telepresence/main.go:11 +0x2c

To Reproduce
Steps to reproduce the behavior:

1. Run telepresence intercept my-deployment --local-only --docker-run -- alpine:latest
2. telepresence crash

Versions (please complete the following information):

> telepresence version         
Client             : v2.13.1
Daemon in container: v2.13.1
Traffic Manager    : v2.13.1

Running on MacOS Monterey and GKE

Additional context

Looking at the code it seems to be failing at:

telepresence/pkg/client/cli/intercept/docker_run.go

Line 200 in 6855291

m := s.info.Mount

I think s.info is null when --local-only flag is set because of the early return at

telepresence/pkg/client/cli/intercept/state.go

Lines 260 to 262 in 6855291

	if s.AgentName == "" {
	// local-only
	return true, nil

Note: I've tried to add --mount false since the code is crashing when trying to create the mounts but this doesn't work either as I get this error instead

telepresence intercept: error: a local-only intercept cannot have mounts

Which is a bit misleading since I'm actually saying I don't want mounts.