macos: flamegraph --pid #### results in xctrace failing with "Mutually exclusive options provided: target-stdout, attach"

[theJC]

flamegraph -o my_flamegraph.svg --pid 4756
Mutually exclusive options provided: target-stdout, attach
usage: xctrace record [<options>] [--attach | --all-processes | --launch -- command ]

description:
	Perform a new recording on the specified device and target with the given template

options:
	--output <path>                        Output .trace file to the given path
	--append-run                           Appends a new run to an existing trace file
	--template <path|name>                 Record using given trace template name or path
	--device <name|UDID>                   Record on device with the given name or UDID
	--instrument <name>                    Add Instrument with the given name to the recording
	--time-limit <time[ms|s|m|h]>          Limit recording time to the specified value
	--window <duration[ms|s|m]>            Keep only events from the specified end time window
	--package <file>                       Load Instruments Package from given path for duration of the command
	--all-processes                        Record all processes
	--attach <pid|name>                    Attach and record process with the given name or pid
	--launch -- command [arguments]        Launch process with the given name or path
	--target-stdin <name>                  Redirect standard input of the launched process
	--target-stdout <name>                 Redirect standard output of the launched process
	--env <VAR=value>                      Set specified environment variable for the launched process
	--notify-tracing-started               Send Darwin notification with this name when a recording has started
	--no-prompt                            Skip any prompts that would be otherwise presented (like privacy warnings)

global options:
	--quiet        Make terminal ouput less verbose

notes:
	If an output path is not specified, a uniquely named file will be created in the current directory.
	If the output path is a directory, then a unique file is created in it. If the path contains the .trace
	extension, a file will be created at the specified path. If trace file already exists, then --append-run
	needs to be specified to add a run to it. In this case, specified template will be ignored
	and the one used to record original trace file will be used.

	If target device UDID or name is not specified — host device is used for the recording.
	Specifying environment variables or stream redirection is only available when using launch option.

examples:
	xctrace record --template 'Time Profiler' --all-processes --time-limit 5s
	xctrace record --template 'Time Profiler' --all-processes --output 'recording.trace'
	xctrace record --all-processes --append-run --output 'existing.trace'
	xctrace record --template 'System Trace' --attach 4215
	xctrace record --template 'Time Profiler' --device-name "Chad's iPhone" --attach 'Trailblazer'
	xctrace record --template 'Metal System Trace' --device-name 'iPhone SE Simulator' --all-processes
	xctrace record --template 'Allocations' --env KEY=VALUE --launch -- MyApp.app
	xctrace record --template 'Time Profiler' --target-stdout - --launch -- /tmp/tool arg1 arg2
failed to sample program, exited with code: Some(47)

[theJC]

Running it in verbose mode result with:

flamegraph -o my_flamegraph.svg --pid 4756 --verbose
command "xctrace" "record" "--template" "Time Profiler" "--target-stdout" "-" "--output" "cargo-flamegraph.trace" "--attach" "4756"
Mutually exclusive options provided: target-stdout, attach

[djc]

I guess that makes sense. Want to submit a PR that avoids adding --target-stdout if --pid is passed in?