AsyncOnce is used at run time in 14 crates (of which 1 optionally). It's used only as a dev dependency in 3 crates.

Depender (with downloads and own rev deps) AsyncOnce version
900 enigmatick ^0.2
600 game_pathfinding ^0.2
300 remindee-bot ^0.2
210 mongoose ^0.2.6
190 proxy-rs ^0.2.6
150 db_server ^0.2
700 sn_api optional ~0.2.6
narwhal-tooth ^0.2.6
awwsy ^0.2.6
rusdb-core ^0.2.1
steel-plate ^0.2.6
nacos-tonic-adapter ^0
1 mat_clockwork_plugin ^0.2.6
180 1 ydb dev ^0.2
jotta-osd dev ^0.2.6
aws-secretsmanager-cache dev ^0.2.6