! cue cmd notool
! stdout .
cmp stderr cmd_baddisplay.out

-- cmd_baddisplay.out --
cmd must be run as one of its subcommands: unknown subcommand "notool"
Ensure commands are defined in a "_tool.cue" file.
Run 'cue help cmd' for known subcommands.
-- task.cue --
package home
message: "Hello world!"

command: notool: {
	task: display: {
		kind: "print"
		text: 42
	}
}
