Upgrade Rust toolchain to nightly-2024-06-17 #6944

# to view logs

Job	Run time
write-json-symtab-regression	11m 47s
regression (macos-13)	25m 34s
regression (ubuntu-20.04)	19m 55s
benchcomp-tests	3m 26s
regression (ubuntu-22.04)	22m 33s
regression (macos-14)	17m 5s
documentation	2m 24s
perf	30m 6s
	2h 12m 50s

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