When scanning directory fails, actually report the failure to the caller #6

	# Macos Build

	name: jacknife-osx10.15

	# Controls when the workflow will run
	on:
	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:
	push:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build_osx_11:
	# The type of runner that the job will run on
	runs-on: macos-10.15

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	- uses: actions/checkout@v2

	# Runs a set of commands using the runners shell
	- name: Do the work
	run: \|
	./build_linux_mac.sh
	file jacknife.wcx
	# https://github.com/rust-lang/rust/issues/93988#issuecomment-1042572902
	# suggests strip -u, so...
	strip -u jacknife.wcx
	mv jacknife.wcx jacknife_osx_x64.wcx
	- name: "Upload artifacts"
	uses: actions/upload-artifact@v3
	with:
	name: jacknife_osx_x64-${{ github.sha }}
	path: jacknife_osx_x64.wcx

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