make sure No uses HIT idiom #1611

Job	Run time
nix	3m 45s
build (supported)	3m 57s
quick-build (supported, ubuntu-latest)	4m 43s
opam-build (supported, ubuntu-latest)	5m 13s
build (latest)	3m 47s
quick-build (latest, ubuntu-latest)	3m 13s
opam-build (8.17, ubuntu-latest)	5m 0s
build (dev, --warnings)	3m 35s
quick-build (dev, ubuntu-latest)	4m 16s
opam-build (latest, ubuntu-latest)	5m 13s
opam-build (dev, ubuntu-latest)	5m 6s
doc-alectryon	1m 6s
doc-timing	58s
doc-dep-graphs	1m 5s
doc-coqdoc	1m 1s
install (supported)	1m 4s
install (latest)	1m 7s
install (dev)	1m 4s
coqchk (supported)	58s
coqchk (latest)	1m 6s
coqchk (dev)	1m 2s
deploy-doc	1s
delete-artifacts	9s
	58m 29s

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