smol

smol is used at run time in 265 crates (of which 97 optionally). It is a direct run-time dependency in 173 crates. It's used at build time in 1 crate. It's used only as a dev dependency in 114 crates (of which 98 directly).

Number of dependers	smol version	Downloads/month
104	2.0.0	35K
242	1.3.0	208K
4	1.2.5	3.5K
3	0.4.3	5
7	0.3.3	240
20	0.1.18	8.7K

Depender (with downloads and own rev deps)			smol version
2.5M	5050	criterion	optional	^1.2
598K	129	quinn	optional	^2
442K	38	fs4	optional	^2
247K	12	if-watch	optional	^1.2.5
113K	2	smoldot-light	optional	^2.0.0
27K	2	async-condvar-fair	optional	^1
25K	25	socketcan	optional	^1.3
23K	16	codspeed-criterion-compat	optional	^1.2
21K	6	poll-promise	optional	^1.2.5
6.7K	3	retty		^2.0.0
6.7K	1	delay_timer		^1.2.5
19K	22	iced_futures	optional	^1.0
6.6K	1	async-transport	optional	^2.0.0
1.7K		eventure		^2.0.0
5.4K	2	criterion2	optional	^2.0
3.9K	3	hwaddr	optional build	>=1.0.0, <2.0.0
3.6K	2	streamcatcher	optional	^1
3.0K	4	fmmap	optional	^1.3
500	8	melprot		^1.2.5
430	6	melnet2		^1.2.5
400	3	nanorpc-http		^1.3.0
320	3	sosistab		^1.2.5
320		melminter		^1.2.5
320	4	geph4-aioutils		^1.2.5
290	2	distant-ssh2		^1.3.0
280		melwallet-cli		^1.2.5
270		pcap-async		^1.2
250	1	melib		^1.0.0
240		rublk		^1.3.0
240	5	sosistab2		^1.3.0
210	3	geph4-protocol		^1.2.5
1.1K	2	timer-kit	optional	^1
200	3	sosistab2-obfsudp		^1.3.0
200	1	grafix-toolbox		^2
170	2	sosistab2-obfstls		^1.3.0
170		cargo-fixture		^1.3.0
160		psychophysics		^1.3.0
160		webrtc-streaming-actix		^2
160	1	nursery_macro		^1.3.0
160	1	earendil		^1.3.0
140		melnode		^1.3.0
120		smoldot-full-node		^2.0.0
120	3	themelio-nodeprot		^1.2.5
120	1	melwallet-client		^1.2.5
110		lottie-player		^2.0.0
110		env-select		^2.0.0
110		geph4-exit		^1.3.0
		suricata-ipc		^1.2
	2	feature-extension-for-smol		^2
	2	naia-server-socket		^1.3
		melwalletd		^1.2.5
		dir-meta		^2.0.0
	1	asuran		^0.1.18
	2	wezterm-ssh		^1.2
		melminter-mod		^1.2.5
		themelio-node		^1.2.5
		direct_http		^1.3.0
		libpylon		^1.3.0
		benchrs		^1.2.5
		asuran-cli		^0.1.18
		geph4-client		^1.3.0
		sosistab2-obfsws		^1.3.0
		gstreamer_iced		^2.0.0
		erldash		^2
	1	tundevice		^1.2.5
		geph4-binder-transport		^1.2.5
	1	novasymph		^1.2.5
		rtcps		^1.3
		scripthookv-rs		^1.2.4
		blindspot		^1.2.5
600	1	spawns-compat	optional	^2.0.0
		gfuckw		^1.2.5
		poseidon-client		^1.2.5
		empath		^1.2
	1	smol-executor-trait		^2.0
		digtask		^2.0.0
		rust-with-kafka-tls		^1.2.4
		async-ssh2		^0.1
		geph4-vpn-helper		^1.2.5
		scd30-modbus		^2.0.0
		sqlui		^1.2.5
		karma-p2p-webrtc		^1.2.5
		ikill		^1.2.5
		cait-sith		^1.3.0
		caspaxos-kv		^1.0.1
		narwhalol		^0.1.4
		sosistun		^1.2.5
		wechat-mp		^0.1
		ether-dream-dac-emulator		^0.1
		meows		~0.1.11
	4	runa-io		^1.2.5
		ap_kcp		^1.2
		crescent		^1.2.5
		kapiti		^1.2
		rmus		^0.1.18
		rust-tunnel		^1.2.5
		turingdb-server		^0.3.3
		manx		^0.1.4
		rkill_lib		^1.2.5
		wez-mdns		^1.3
		cooper		^1.2
	1	erl_rpc		^2
		isostatic		^0.3.3
	1	libublk		^1.3.0
		smol-attributes		^0.1
		smtp-server		^1.2
		stocker		^0.1.18
		gremlin-cli		^0.4.3
		puppeteer		^2.0.0
		rkill		^1.2.5
		hup		^0.1.11
		lkj		^0.1.11
		neu		^1.2.5
		persia-futures		^1.0
		wirectl		^1.2.5
		delay_timer_wf		^1.2.5
		is-prime2		^1.3.0
	3	melnet		^1.2.5
		seagulldoro		^1.2.5
		stream-merge		^1.0.0
		ai-agents		^2.0
	2	libtun		^0.1.11
		smtp-client		^1.2
		smtp-queue		^1.2
		twitch_chat_wrapper		^0.3.3
	1	virta		^2.0.0
		hitdns		^2.0.0
		mxdns		^2
	1	melblkidx		^1.2.5
		earendil-gui		^1
	2	runa-core		^1.2.5
	1	streamlette		^1.2.5
		scl-core		^1.2
470	2	async-send-fd	optional	^2
310	1	rsdns	optional	^2
300	5	product-os-async-executor	optional	^1.3.0
290	1	cargo-fixture-lib	optional	^1.3.0
230	2	karyon_core	optional	^2.0.0
210		agnostik	optional	^1.2.4
160	2	twitchchat	optional	^1.2
140		wtx	optional	^2.0
130		rucron	optional	^1.3.0
130		zallocator	optional	^2
120	1	dnsclientx	optional	^2
120	4	xtra	optional	^1.1
110	1	close_already	optional	^2
	1	asuran-chunker	optional	^0.1.18
		kludgine-app	optional	^1.2.5
	1	async-abci	optional	^1.2.5
		async-vfs-os	optional	^1.2.5
	3	lnk-thrussh-agent	optional	^1.2
		servt	optional	^2.0.0
		abci-rs	optional	^1.2.5
		blynk_io	optional	^1.2
		ch4	optional	^2
	1	credent_cli	optional	^1.2.5
	1	credent_cli_model	optional	^1.2.5
		doomsday-clock	optional	^1
		drteeth	optional	^1.3.0
		embedded-td	optional	^1.2.5
		hls_lfcd_lds_driver	optional	^1.2
	2	kvarn-quinn	optional	^2
		megumax	optional	^1.2.2
		mqrstt	optional	^1.3.0
		redis_tang	optional	^1
		riptun	optional	^1.2.5
		tasic	optional	^1.3.0
		task-collection	optional	^1.0
2.0M	49	async-task	dev	^2
1.0M	126	aws-sdk-s3	dev	^1.2.0
815K	93	rdkafka	dev	^1.2.4
659K	184	enum_dispatch	dev	^1.3.0
368K	94	sea-orm	dev	^1.2
257K	32	futures-rustls	dev	^1
195K	36	async-mutex	dev	^0.1.18
154K	17	async_once	dev	^1.2.4
124K	1	sea-orm-cli	dev	^1.2.5
105K	30	async-dup	dev	^1
92K	2	futures-ticker	dev	^1.2.5
58K	28	nats	dev	^1.2.5
48K	8	async-rustls	dev	^2.0
15K		graceful-shutdown	dev	^1.2
13K	16	portable-pty	dev	^1.2
11K	18	smol-potat	dev	^1.2
10K		madsim-rdkafka	dev	^1.2.4
9.8K	6	fixed-buffer	dev	^1
9.0K	5	wg	dev	^2
6.3K	1	oxide-auth-async	dev	^1.3.0
4.3K	11	trillium-http	dev	^2.0.0
3.9K	12	rustls-acme	dev	^2.0.0
2.6K	1	async-web-client	dev	^2.0.0
2.5K	3	async-http-codec	dev	^1.2.5
2.5K	5	retainer	dev	^1.2
2.3K	3	isotest	dev	^1.2
1.7K	2	wait-for-me	dev	^1.3.0
1.7K		stabby	dev	^2.0.0
1.2K		apecs	dev	^2.0
950	1	priority-async-mutex	dev	^1
900	2	rustdds	dev	^2.0
850	13	nanorpc	dev	^1.2.5
850		ros2-client	dev	^1.3
750	2	mprocs-pty	dev	^1.2
750		crossmist	dev	^2
650	4	keepcalm	dev	^1
490	2	erl_dist	dev	^1
420	1	onetime	dev	^2
290		ticque	dev	^2
280		async-skipdb	dev	^2
220		ethercrab	dev	^2.0.0
200		mosquitto-rs	dev	^2.0
170		async-hidg	dev	^2
170	1	unicom-nres	dev	^2
160		async-gpiod	dev	^2
160		unicom-tcp	dev	^2
160		poster	dev	^1.2
120	1	lottie-renderer-bevy	dev	^2.0.0
120		vuot	dev	^2
110	2	vmcircbuffer	dev	^1.2.5
		interthread	dev	^2.0.0
	1	karyon_net	dev	^2.0.0
	3	tintanum	dev	^1.3.0
		karyon_jsonrpc	dev	^2.0.0
		elegant-departure	dev	^1
	1	fastudp	dev	^1
		lapinou	dev	^1.0
	1	image2	dev	^1
		async-cron-scheduler	dev	^2.0.0
		stream_multiplexer	dev	^0.3.3
		trillium-acme	dev	^2.0.0
	1	sfu	dev	^2
	1	async-peek	dev	^0.4
		async-mavlink	dev	^1
	1	credent_fs	dev	^1.2.5
		msedge-tts	dev	^2.0.0
		aiven_rs	dev	^1.2.5
	1	async-cpupool	dev	^2.0.0
	1	picomux	dev	^2
		bench-rs	dev	^1.2.1
		messages	dev	^1.2
		tophat	dev	^1.2.5
		async-quic	dev	^1.2.5
		interactsh-rs	dev	^1
		pg_wire	dev	^1.2.5
		coil	dev	^1.2
		credent	dev	^1.2.5
		nats-aflowt	dev	^1.2.5
		curseforge	dev	^1.2
		async-tcp	dev	^0.4
		async-time-mock-smol	dev	^2
		async-task-ffi	dev	^1.0.1
		async-scgi	dev	^1.2
		radicle-keystore	dev	^1.2
		futures-mockstream	dev	^0.1.4
		juggle	dev	^1.0.1
		starfish-ql	dev	^1.2
	2	tang-rs	dev	^0.1.10
		trillium-tracing	dev	^1.2.5
		gsi	dev	^1.0.0
		modrinth	dev	^1
		see-you-later	dev	^0.1
		alhc	dev	^1.3.0
	2	mfio	dev	^1
		pipe_macro	dev	^0.1
		rmw_ttlmap	dev	^1.2.5
		tdn_permission	dev	^1
		tdn_storage	dev	^1
	2	async-web-server	dev	^1.2.5
		autolog	dev	^1.2
	1	mfio-rt	dev	^1
		retainer_nickbp	dev	^1.2
	1	sllm-rs	dev	^2.0
		borrow_mutex	dev	^1.3