more projectile tracking work #66

Job	Run time
matrix	40s
check	2m 16s
clippy	1m 45s
msrv	1m 29s
build (parse_demo, parser-x86_64-linux, x86_64-unknown-linux-musl)	1m 47s
build (parse_demo, parser-i686-linux, i686-unknown-linux-musl)	1m 47s
check-schema	3m 44s
build (parse_demo, parser-armv7-linux, armv7-unknown-linux-musleabihf)	1m 42s
build (parse_demo, parser-aarch64-linux, aarch64-unknown-linux-musl)	1m 40s
build (parse_demo.exe, parser-x86_64-windows.exe, x86_64-pc-windows-gnu)	1m 48s
test	2m 27s
build (parse_demo, parser-x86_64-linux, x86_64-unknown-linux-gnu)	1m 44s
	22m 49s

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