Source: doc.rust-lang.org (std library reference) · crates.io database dump, 2026-07-25 (crates directory)Contact
UPDATE YEAR

Crates last updated in 2020

The 643 crates in this directory whose own rendered Last-updated date falls in 2020.

Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.

643 crates last updated in 2020
RustyXML2020 accelerometer2020 access-json2020 acl-sys2020 actix-connect2020 actix-testing2020 actix-threadpool2020 adler322020 advisory-lock2020 again2020 alga2020 alga_derive2020 align-data2020 alloc-traits2020 amcl_wrapper2020 amethyst2020 amethyst_animation2020 amethyst_assets2020 amethyst_audio2020 amethyst_config2020 amethyst_controls2020 amethyst_core2020 amethyst_derive2020 amethyst_error2020 amethyst_input2020 amethyst_locale2020 amethyst_network2020 amethyst_rendy2020 amethyst_ui2020 amethyst_utils2020 amethyst_window2020 andrew2020 apply2020 approx_eq2020 array-const-fn-init2020 as-dyn-trait2020 aspect-weave2020 assert-panic2020 assert_into2020 assign2020 async-ctrlc2020 async-listen2020 async-watch2020 async_logger2020 atom2020 atty2020 audiotags-dev-macro2020 audir-sles2020 backtrace-sys2020 bare-metal2020 bastion-utils2020 battery2020 bbs2020 beau_collector2020 bevy-glsl-to-spirv2020 bigint2020 binascii2020 bincode22020 binwrite2020 binwrite_derive2020 bisection2020 bitmatch2020 bitness2020 bitset-core2020 blake2b-rs2020 blingfire2020 blingfire-sys2020 block-cipher2020 bluenrg2020 bluetooth-hci2020 boolenum2020 bstringify2020 btc_spv_bin2020 buf-read-ext2020 buffering2020 bv2020 c_vec2020 cargo-husky2020 cargo-pkg2020 cargo-strip2020 cargo-tree2020 cargo_gn2020 chalk-macros2020 change-case2020 chunky-vec2020 ckb-always-success-script2020 claxon2020 clickhouse-rs-cityhash-sys2020 closure2020 codemap2020 codicon2020 collectable2020 comedy2020 compile-time-lua-bind-hash2020 compress2020 conquer-util2020 conrod2020 consistent_hash_ring2020 cooked-waker2020 copyless2020 core-error2020 core-media-sys2020 core-video-sys2020 cortex-m-rtfm2020 cortex-m-rtfm-macros2020 coz2020 cpuio2020 cranelift-simplejit2020 crt0stack2020 csound2020 csound-sys2020 css-color-parser22020 cuckoofilter2020 cuda-driver-sys2020 darwin-libproc2020 darwin-libproc-sys2020 dasp2020 dasp_envelope2020 dasp_frame2020 dasp_interpolate2020 dasp_peak2020 dasp_ring_buffer2020 dasp_rms2020 dasp_sample2020 dasp_signal2020 dasp_slice2020 date-calculations2020 debug_panic2020 debug_print2020 deepsize2020 demonstrate2020 derive-try-from-primitive2020 derive_deref2020 did_url2020 dir-assert2020 directories-next2020 dirs-next2020 dirs22020 discord-indexmap2020 dispatch2020 dodrio2020 dont_disappear2020 dpl_test2020 ducc2020 dynamic-pool2020 dync-derive2020 dynomite2020 dynomite-derive2020 ec2_instance_metadata2020 econtext2020 eieio2020 email2020 empty-library2020 encoding_c2020 encoding_c_mem2020 encoding_rs_io2020 endian-type-rs2020 enum-repr2020 enum_access2020 env-test-util2020 env_proxy2020 error-chain2020 eui482020 evcxr_input2020 evmap-derive2020 exonum2020 extprim2020 factori2020 factori-impl2020 faerie2020 failure2020 failure_derive2020 faketime2020 fasteval2020 fehler2020 fehler-macros2020 ff-zeroize2020 ff_derive-zeroize2020 field_count2020 field_count_derive2020 file-size2020 filecheck2020 filesize2020 filetime_win2020 flat_map2020 floatconv2020 flv-util2020 fnv2020 font-loader2020 forest_hash_utils2020 format_num2020 formdata2020 from_map2020 fs-utils2020 fs32020 fscommon2020 fstab2020 func_wrap2020 futures-diagnose2020 fuzzy-matcher2020 fuzzywuzzy2020 garando_errors2020 garando_pos2020 gearhash2020 gen-z2020 genawaiter2020 genawaiter-macro2020 genawaiter-proc-macro2020 generic_static2020 geo-booleanop2020 gflags-derive2020 gfx-descriptor2020 gfx-memory2020 gfx_gl2020 glutin_emscripten_sys2020 gobuild2020 gsgdt2020 guid_win2020 handlebars-iron2020 handy2020 hash_ring2020 hashmap_derive2020 heim2020 heim-common2020 heim-cpu2020 heim-disk2020 heim-host2020 heim-memory2020 heim-net2020 heim-process2020 heim-runtime2020 heim-sensors2020 heim-virt2020 hmac-drbg2020 httlib-huffman2020 http-service2020 httpbis2020 hubcaps2020 hwaddr2020 hyper-sync-rustls2020 hyper-unix-connector2020 ibmfloat2020 ichwh2020 idalloc2020 ieee7542020 if-addrs-sys2020 ihex2020 includedir2020 includedir_codegen2020 index-fixed2020 indexed2020 influent2020 ini2020 intbits2020 integer-sqrt2020 interpol2020 intervalier2020 iobuffer2020 iou2020 ip-in-subnet2020 ip_network_table-deps-treebitmap2020 ipfs-unixfs2020 isocountry2020 job_scheduler2020 json2020 json-pointer2020 json-spanned-value2020 json_diff2020 json_env_logger2020 jurisdiction2020 k8-diff2020 kanaria2020 kernlog2020 kuchiki2020 kv-log-macro2020 lapin-async2020 lapin-futures2020 lazycell2020 lettre_email2020 leveldb2020 lexical-sort2020 lib3h2020 lib3h_crypto_api2020 libp2p-core-derive2020 libp2p-secio2020 lifeguard2020 line-col2020 liquid-compiler2020 liquid-error2020 liquid-interpreter2020 liquid-value2020 literally2020 lmdb-rkv2020 locate-cargo-manifest2020 log-derive2020 logtest2020 lrpc2020 lrpc-macros2020 lru-disk-cache2020 lua_bind_hash2020 luhn2020 macaddr2020 maidsafe_utilities2020 maligned2020 managed2020 mapr2020 markdown-gen2020 markov2020 matrixcompare-core2020 matter2020 maybe-owned2020 md62020 memcached-rs2020 memory-module-sys2020 metrics-exporter-http2020 metrics-exporter-log2020 metrics-observer-prometheus2020 metrics-runtime2020 midi-consts2020 mini_paste2020 mini_paste-proc_macro2020 minilp2020 mio-named-pipes2020 mio-uds2020 mkpasswd2020 moz_cbor2020 mp3-duration2020 mqtt4bytes2020 msgpack_simple2020 mshio2020 multi-map2020 multicache2020 multitask2020 must_future2020 mutex-trait2020 named_type2020 named_type_derive2020 natural2020 nbytes2020 near-runtime-fees2020 neon-serde2020 neptune-triton2020 nested2020 netrc-rs2020 network-framework-sys2020 never2020 nias2020 nibble_vec2020 no-comment2020 no-std-compat2020 node-sys2020 nohash-hasher2020 noop_proc_macro2020 npm-package-json2020 number_prefix2020 numerals2020 numeric-enum-macro2020 numext-constructor2020 numext-fixed-uint2020 numext-fixed-uint-core2020 numext-fixed-uint-hack2020 obj2020 odbc2020 odds2020 once-cell-regex2020 ordered_iter2020 owned-read2020 owning_ref2020 packet2020 pad-adapter2020 padlock2020 pairing-plus2020 palaver2020 panic-itm2020 parity-bytes2020 parity-multihash2020 parity-path2020 parity-util-mem-derive2020 parity-wordlist2020 paste-impl2020 path_macro2020 pathfinder_color2020 pathfinder_geometry2020 pathsearch2020 pcap-async2020 pelite-macros2020 pennereq2020 pic8259_simple2020 pin-utils2020 pipe2020 piston-shaders_graphics2d2020 piston2d-drag_controller2020 pkcs112020 plain_hasher2020 platform-dirs2020 plotlib2020 ply-rs2020 podio2020 portaudio-rs2020 pretty-lint2020 prettyprint2020 probabilistic-collections2020 proc-macro-error2020 proc-macro-error-attr2020 proc-quote-impl2020 procedural-masquerade2020 prolog_parser2020 prometrics2020 propfuzz2020 propfuzz-macro2020 prost-amino2020 prost-amino-derive2020 protoc-grpcio2020 pyo3-derive-backend2020 pyo3cls2020 qstring2020 quickcheck_async2020 quickcheck_derive2020 quicksilver2020 quicksink2020 r02020 ra_vfs2020 raw_sync2020 rawkey2020 rawslice2020 refpool2020 regex-cache2020 require_unsafe_in_body2020 reqwest_mock2020 riker2020 riker-macros2020 rio2020 riscv-target2020 routing2020 rs-es2020 rust-hsluv2020 rust-webvr2020 rust_hawktracer2020 rust_hawktracer_normal_macro2020 rust_hawktracer_proc_macro2020 rust_hawktracer_sys2020 rustacuda_core2020 rustacuda_derive2020 rustc-ap-arena2020 rustc-ap-graphviz2020 rustc-ap-serialize2020 rustc-ap-syntax2020 rustc-hex2020 rustc-semver2020 rustc-test2020 rustfmt-nightly2020 rusty-hook2020 ryu_floating_decimal2020 safe-mix2020 safe_core2020 same-file2020 sample2020 sapp-dummy2020 sapp-ios2020 scanlex2020 sdset2020 seccomp2020 sentry-failure2020 serde-command-opts2020 serde-detach2020 serde-value2020 serde-with-expand-env2020 serde_alias2020 serde_str_helpers2020 servo-fontconfig2020 servo-fontconfig-sys2020 setjmp2020 shader_version2020 shell-escape2020 shellwords2020 shh2020 shorthand2020 shunkakinoki2020 signifix2020 simpl2020 simple-mutex2020 sitemap2020 slack2020 slack_api2020 slippy-map-tiles2020 smol-potat2020 smol-potat-macro2020 sobol2020 sodalite2020 solana-btc-spv-program2020 solana-chacha-sys2020 solana-genesis-programs2020 sortedvec2020 soup-sys2020 souper-ir2020 spandoc-attribute2020 specs-derive2020 specs-hierarchy2020 spin_on2020 spinning2020 sql-builder2020 srec2020 static_assert_macro2020 stm32-device-signature2020 storage-map2020 storage-proofs2020 str-concat2020 stream-cipher2020 stream-flatten-iters2020 stream-reduce2020 streaming-stats2020 string_concat2020 stringly_conversions2020 strip_bom2020 sublime_fuzzy2020 substrate-wasm-builder-runner2020 substrate-wasmtime2020 subtle-encoding2020 suffix_array2020 swc_ecma_parser_macros2020 symbolic-proguard2020 syn-test-suite2020 synattra2020 sysfs-class2020 task-compat2020 telegram-bot2020 term_grid2020 term_size2020 termbox-sys2020 termios2020 test-cdylib2020 text_trees2020 text_unit2020 textnonce2020 thin-dst2020 threadpool2020 threshold_crypto2020 timed_proc_macros2020 tiny-keccak2020 tinystr-macros2020 tokio-codec2020 tokio-compat2020 tokio-core2020 tokio-current-thread2020 tokio-executor2020 tokio-file-unix2020 tokio-fs2020 tokio-io2020 tokio-io-pool2020 tokio-process2020 tokio-reactor2020 tokio-signal2020 tokio-sync2020 tokio-tcp2020 tokio-threadpool2020 tokio-timer2020 tokio-tls2020 tokio-tls-api2020 tokio-udp2020 tokio-uds2020 toml-query_derive2020 tower-limit2020 tower-ready-cache2020 tower-util2020 trace-time2020 trackable_derive2020 tracy-rs2020 trait-async2020 trait_enum2020 transaction-pool2020 tree_magic2020 try-traits2020 twapi-oauth2020 twiml2020 twitchchat2020 two-rusty-forks2020 two-rusty-forks-macro2020 type-layout2020 type-layout-derive2020 unix_str2020 unroll2020 uring-sys2020 uritemplate-next2020 url22020 urlocator2020 users2020 usize_cast2020 utf16string2020 utfx2020 uwl2020 v_eval2020 varisat2020 varisat-checker2020 varisat-dimacs2020 varisat-formula2020 varisat-internal-macros2020 varisat-internal-proof2020 vec_map2020 vint642020 vsprintf2020 wabt2020 wabt-sys2020 wagyu-zcash-parameters2020 wagyu-zcash-parameters-12020 wagyu-zcash-parameters-22020 wagyu-zcash-parameters-32020 wagyu-zcash-parameters-42020 wagyu-zcash-parameters-52020 wagyu-zcash-parameters-62020 waitgroup2020 wasabi_leb1282020 wasm-bindgen-anyref-xform2020 wasm-timer2020 wasm-webidl-bindings2020 wasmer-clif-backend2020 wasmer-clif-fork-frontend2020 wasmer-clif-fork-wasm2020 wasmer-runtime-core2020 wasmer-singlepass-backend2020 wasmer-win-exception-handler2020 weblog2020 weblog-proc-macro2020 wepoll-binding2020 wepoll-sys2020 wepoll-sys-stjepang2020 wgpu-native2020 winapi2020 wincolor2020 winconsole2020 winrt_gen2020 winrt_gen_macros2020 winrt_macros2020 wit-text2020 wit-validator2020 wit-writer2020 x509-signature2020 xi-unicode2020 xoroshiro1282020 xxtea-nostd2020 yansi-term2020 zigzag2020 zookeeper_derive2020 zwohash2020