Wait for spawn child in order to avoid concurrency problems. #2067

	name: Fuzz test
	on:
	push:

	jobs:
	run-fuzz:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	directory: [alloc, profiling, ddcommon-ffi, trace-utils]
	env:
	CARGO_TERM_COLOR: always
	steps:
	- uses: actions/checkout@v4
	- name: Set up Rust
	run: \|
	set -e
	rustup set profile minimal
	rustup toolchain install nightly
	rustup default nightly
	- uses: taiki-e/install-action@v2
	with:
	tool: cargo-bolero
	- run: \|
	set -e
	# cargo bolero list outputs {"package":"package-name","test":"test-name"}
	pushd ${{ matrix.directory }}
	cargo bolero list \| \
	# And the following command will parse package-name's and test-name's one in each line
	grep -oP '"(package\|test)"\s:\s"\K[^"]+' \| \
	# awk will stitch package and test names back separated by a tab
	awk 'NR%2{printf "%s\t", $0; next}1' \| \
	while read -r package test;
	do
	echo "**** Starting bolero test for $package $test ****" 1>&2
	cargo bolero test -T 1min --package $package $test
	done
	popd

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