Rust crate feature flags: what to turn on, and the line to copy

By real use

• hashbrown7 features, 5 on by default, MSRV 1.85.0
• syn11 features, 5 on by default, MSRV 1.71
• getrandom3 features, 0 on by default, MSRV 1.85
• rand10 features, 4 on by default, MSRV 1.85
• bitflags3 features, 0 on by default, MSRV 1.56.0
• windows-sys246 features, 0 on by default, MSRV 1.71
• thiserror1 features, 1 on by default, MSRV 1.77
• quote1 features, 1 on by default, MSRV 1.71
• libc6 features, 1 on by default, MSRV 1.65
• proc-macro23 features, 1 on by default, MSRV 1.71
• indexmap3 features, 1 on by default, MSRV 1.85
• memchr6 features, 1 on by default, MSRV 1.61
• base643 features, 2 on by default, MSRV 1.71.0
• itertools2 features, 1 on by default, MSRV 1.63.0
• serde5 features, 1 on by default, MSRV 1.56
• serde_json7 features, 1 on by default, MSRV 1.71
• cfg-if1 features, 0 on by default, MSRV 1.32
• serde_derive1 features, 0 on by default, MSRV 1.71
• socket21 features, 0 on by default, MSRV 1.70
• rand_chacha2 features, 1 on by default, MSRV 1.85
• log23 features, 0 on by default, MSRV 1.71.0
• smallvec9 features, 0 on by default
• digest8 features, 1 on by default, MSRV 1.85
• cc3 features, 0 on by default, MSRV 1.65.0
• serde_core5 features, 2 on by default, MSRV 1.56
• once_cell8 features, 1 on by default, MSRV 1.65
• crypto-common3 features, 0 on by default, MSRV 1.85
• regex-syntax10 features, 2 on by default, MSRV 1.65
• winnow9 features, 3 on by default, MSRV 1.65.0
• regex-automata30 features, 8 on by default, MSRV 1.65
• sha23 features, 2 on by default, MSRV 1.88
• bytes1 features, 1 on by default, MSRV 1.57
• rustix30 features, 1 on by default, MSRV 1.65
• regex21 features, 4 on by default, MSRV 1.65
• mio3 features, 1 on by default, MSRV 1.71
• aho-corasick3 features, 2 on by default, MSRV 1.60.0
• linux-raw-sys27 features, 3 on by default, MSRV 1.63
• shlex1 features, 1 on by default, MSRV 1.46.0
• http1 features, 1 on by default, MSRV 1.57.0
• zerocopy7 features, 0 on by default, MSRV 1.56.0
• toml_datetime3 features, 1 on by default, MSRV 1.85
• futures-core4 features, 1 on by default, MSRV 1.36
• futures-util15 features, 3 on by default, MSRV 1.71
• futures-task4 features, 1 on by default, MSRV 1.71
• clap20 features, 6 on by default, MSRV 1.85
• ryu1 features, 0 on by default, MSRV 1.71
• tokio16 features, 0 on by default, MSRV 1.85
• either2 features, 1 on by default, MSRV 1.63.0
• foldhash2 features, 1 on by default, MSRV 1.60
• typenum4 features, 0 on by default, MSRV 1.41.0
• slab1 features, 1 on by default, MSRV 1.51
• rustc-hash3 features, 1 on by default, MSRV 1.77
• parking_lot_core2 features, 0 on by default, MSRV 1.95
• futures-channel5 features, 1 on by default, MSRV 1.71
• parking_lot6 features, 0 on by default, MSRV 1.95
• toml8 features, 4 on by default, MSRV 1.85
• futures-sink2 features, 1 on by default, MSRV 1.36
• fastrand3 features, 1 on by default, MSRV 1.63
• num-traits3 features, 1 on by default, MSRV 1.60
• anyhow2 features, 1 on by default, MSRV 1.68
• lock_api2 features, 1 on by default, MSRV 1.95
• generic-array9 features, 0 on by default, MSRV 1.65
• futures-io2 features, 1 on by default, MSRV 1.36
• errno1 features, 1 on by default, MSRV 1.56
• hyper9 features, 0 on by default, MSRV 1.63
• semver2 features, 1 on by default, MSRV 1.68
• rustls12 features, 5 on by default, MSRV 1.71
• clap_builder17 features, 6 on by default, MSRV 1.85
• scopeguard1 features, 1 on by default
• toml_edit5 features, 2 on by default, MSRV 1.85
• crossbeam-utils2 features, 1 on by default, MSRV 1.60
• percent-encoding2 features, 1 on by default, MSRV 1.51
• rustls-webpki6 features, 1 on by default, MSRV 1.71
• anstyle1 features, 1 on by default, MSRV 1.66.0
• tracing-core1 features, 2 on by default, MSRV 1.65.0
• tracing17 features, 2 on by default, MSRV 1.65.0
• yoke4 features, 2 on by default, MSRV 1.82
• idna3 features, 2 on by default, MSRV 1.57
• writeable2 features, 1 on by default, MSRV 1.82
• darling_core2 features, 0 on by default, MSRV 1.88.0
• darling3 features, 1 on by default, MSRV 1.88.0
• synstructure1 features, 1 on by default, MSRV 1.71
• uuid19 features, 1 on by default, MSRV 1.89.0
• litemap5 features, 1 on by default, MSRV 1.82
• displaydoc1 features, 1 on by default, MSRV 1.71.0
• reqwest29 features, 4 on by default, MSRV 1.85.0
• tinystr5 features, 1 on by default, MSRV 1.82
• icu_provider11 features, 0 on by default, MSRV 1.88
• url4 features, 1 on by default, MSRV 1.63
• zerovec8 features, 0 on by default, MSRV 1.83
• miniz_oxide5 features, 1 on by default
• icu_collections3 features, 0 on by default, MSRV 1.88
• icu_properties8 features, 1 on by default, MSRV 1.88
• futures-executor2 features, 1 on by default, MSRV 1.71
• clap_derive5 features, 0 on by default, MSRV 1.85
• zerofrom2 features, 1 on by default, MSRV 1.71.1
• icu_normalizer8 features, 3 on by default, MSRV 1.88
• anstream3 features, 2 on by default, MSRV 1.66.0
• lazy_static1 features, 0 on by default
• anstyle-parse2 features, 1 on by default, MSRV 1.66.0
• tempfile1 features, 1 on by default, MSRV 1.63
• ppv-lite863 features, 1 on by default, MSRV 1.61
• stable_deref_trait2 features, 1 on by default
• form_urlencoded2 features, 1 on by default, MSRV 1.51
• time16 features, 1 on by default, MSRV 1.88.0
• idna_adapter1 features, 0 on by default, MSRV 1.86
• futures12 features, 3 on by default, MSRV 1.71
• zeroize5 features, 1 on by default, MSRV 1.85
• nix34 features, 0 on by default, MSRV 1.69
• schemars5 features, 2 on by default, MSRV 1.74
• chrono17 features, 4 on by default, MSRV 1.62.0
• tower19 features, 0 on by default, MSRV 1.64.0
• tinyvec15 features, 0 on by default
• tokio-rustls9 features, 3 on by default, MSRV 1.71
• h22 features, 0 on by default, MSRV 1.63
• tokio-util10 features, 0 on by default, MSRV 1.85
• zerotrie8 features, 0 on by default, MSRV 1.82
• tracing-attributes1 features, 0 on by default, MSRV 1.65.0
• potential_utf5 features, 1 on by default, MSRV 1.82
• serde_spanned3 features, 2 on by default, MSRV 1.85
• phf_shared2 features, 1 on by default, MSRV 1.85
• icu_locale_core4 features, 0 on by default, MSRV 1.88
• crc32fast2 features, 1 on by default, MSRV 1.63
• redox_syscall3 features, 1 on by default
• time-core1 features, 0 on by default, MSRV 1.88.0
• unicode-width3 features, 1 on by default, MSRV 1.66
• utf8parse1 features, 0 on by default
• hyper-rustls9 features, 5 on by default, MSRV 1.85
• httparse1 features, 1 on by default
• rustls-pki-types3 features, 1 on by default, MSRV 1.60
• wasi2 features, 1 on by default, MSRV 1.82.0
• phf5 features, 1 on by default, MSRV 1.85
• subtle5 features, 2 on by default
• nom3 features, 1 on by default, MSRV 1.65.0
• fnv1 features, 1 on by default
• time-macros4 features, 0 on by default, MSRV 1.88.0
• flate213 features, 2 on by default, MSRV 1.67.0
• hmac1 features, 0 on by default, MSRV 1.85
• ring10 features, 2 on by default, MSRV 1.66.0
• sync_wrapper1 features, 0 on by default
• const-oid1 features, 0 on by default, MSRV 1.85
• crossbeam-epoch4 features, 1 on by default, MSRV 1.61
• deranged10 features, 0 on by default, MSRV 1.85.0
• byteorder2 features, 1 on by default, MSRV 1.60
• r-efi2 features, 0 on by default, MSRV 1.68
• thread_local1 features, 0 on by default, MSRV 1.63
• tower-http34 features, 0 on by default, MSRV 1.65
• num-integer2 features, 1 on by default, MSRV 1.31
• iana-time-zone1 features, 0 on by default, MSRV 1.62.0
• sha13 features, 2 on by default, MSRV 1.85
• ipnet8 features, 1 on by default
• adler22 features, 1 on by default
• hex2 features, 1 on by default
• http-body-util2 features, 0 on by default, MSRV 1.61
• bumpalo6 features, 0 on by default, MSRV 1.71.1
• ahash6 features, 2 on by default, MSRV 1.60.0
• siphasher3 features, 1 on by default
• hyper-util16 features, 0 on by default, MSRV 1.85
• simd-adler323 features, 2 on by default
• crossbeam-deque1 features, 1 on by default, MSRV 1.61
• tracing-subscriber11 features, 5 on by default, MSRV 1.65.0
• strum2 features, 1 on by default, MSRV 1.71
• num-bigint8 features, 1 on by default, MSRV 1.60
• powerfmt3 features, 2 on by default, MSRV 1.79.0
• spin15 features, 7 on by default, MSRV 1.71
• portable-atomic9 features, 1 on by default, MSRV 1.34
• prost3 features, 2 on by default, MSRV 1.85
• nu-ansi-term3 features, 1 on by default, MSRV 1.62.1
• toml_parser5 features, 1 on by default, MSRV 1.85
• wasm-bindgen9 features, 1 on by default, MSRV 1.81
• wasm-bindgen-macro-support2 features, 0 on by default, MSRV 1.81
• wasm-bindgen-macro1 features, 0 on by default, MSRV 1.81
• chacha203 features, 1 on by default, MSRV 1.85
• arrayvec1 features, 1 on by default, MSRV 1.51
• unicode-segmentation1 features, 0 on by default, MSRV 1.85.0
• bit-vec2 features, 1 on by default, MSRV 1.85.0
• tracing-log3 features, 2 on by default, MSRV 1.56.0
• allocator-api24 features, 1 on by default, MSRV 1.64.0
• memoffset2 features, 0 on by default
• js-sys3 features, 2 on by default, MSRV 1.81
• rayon1 features, 0 on by default, MSRV 1.80
• derive_more28 features, 1 on by default, MSRV 1.81.0
• matchit1 features, 0 on by default, MSRV 1.66
• axum15 features, 9 on by default, MSRV 1.80
• phf_generator1 features, 0 on by default, MSRV 1.85
• prettyplease1 features, 0 on by default, MSRV 1.71
• matchers1 features, 0 on by default
• libloading1 features, 1 on by default, MSRV 1.88.0
• axum-core2 features, 0 on by default, MSRV 1.78
• rayon-core1 features, 0 on by default, MSRV 1.80
• crossbeam-channel1 features, 1 on by default, MSRV 1.60
• libm6 features, 1 on by default, MSRV 1.63
• windows-core2 features, 2 on by default, MSRV 1.95
• petgraph11 features, 4 on by default, MSRV 1.64
• quick-xml6 features, 0 on by default, MSRV 1.86
• event-listener3 features, 1 on by default, MSRV 1.60
• der9 features, 0 on by default, MSRV 1.85
• core-foundation4 features, 1 on by default, MSRV 1.65
• fixedbitset1 features, 1 on by default, MSRV 1.56
• bit-set4 features, 1 on by default, MSRV 1.85.0
• quinn-proto13 features, 3 on by default, MSRV 1.85
• windows-result1 features, 1 on by default, MSRV 1.95
• object25 features, 2 on by default, MSRV 1.85
• tokio-stream8 features, 1 on by default, MSRV 1.71
• unicode-xid2 features, 0 on by default, MSRV 1.17
• minimal-lexical5 features, 1 on by default
• quinn-udp3 features, 2 on by default, MSRV 1.88.0
• static_assertions1 features, 0 on by default
• quinn17 features, 5 on by default, MSRV 1.85
• signature2 features, 0 on by default, MSRV 1.85
• prost-types2 features, 1 on by default, MSRV 1.85
• half6 features, 1 on by default, MSRV 1.81
• data-encoding2 features, 1 on by default, MSRV 1.48
• encoding_rs12 features, 1 on by default, MSRV 1.88
• wit-bindgen10 features, 6 on by default
• ordered-float15 features, 1 on by default, MSRV 1.90
• unicode-normalization1 features, 1 on by default, MSRV 1.36
• windows-strings1 features, 1 on by default, MSRV 1.95
• md-53 features, 2 on by default, MSRV 1.85
• hashlink1 features, 0 on by default, MSRV 1.85
• bytemuck25 features, 0 on by default
• cipher7 features, 0 on by default, MSRV 1.85
• base64ct2 features, 0 on by default, MSRV 1.85
• spki6 features, 0 on by default, MSRV 1.85
• derive_more-impl27 features, 0 on by default, MSRV 1.81.0
• target-lexicon4 features, 0 on by default
• hybrid-array2 features, 0 on by default, MSRV 1.85
• bstr4 features, 2 on by default, MSRV 1.65
• winapi399 features, 0 on by default
• pkcs88 features, 0 on by default, MSRV 1.85
• core-foundation-sys3 features, 1 on by default
• web-sys1726 features, 1 on by default, MSRV 1.81
• tonic14 features, 3 on by default, MSRV 1.88
• toml_writer2 features, 1 on by default, MSRV 1.85
• unicase1 features, 0 on by default
• num-complex7 features, 1 on by default, MSRV 1.60
• gimli8 features, 2 on by default, MSRV 1.88
• lru1 features, 1 on by default, MSRV 1.85.0
• rustc-demangle3 features, 0 on by default
• aws-lc-sys7 features, 1 on by default, MSRV 1.71.0
• serde_with23 features, 2 on by default, MSRV 1.88
• arc-swap5 features, 0 on by default
• security-framework10 features, 3 on by default, MSRV 1.85
• aws-lc-rs12 features, 4 on by default, MSRV 1.71.0
• hermit-abi1 features, 0 on by default
• num-iter2 features, 1 on by default, MSRV 1.31
• aes1 features, 0 on by default, MSRV 1.89
• serde_with_macros3 features, 0 on by default, MSRV 1.88
• web-time1 features, 0 on by default, MSRV 1.60
• crunchy7 features, 1 on by default
• tungstenite7 features, 1 on by default, MSRV 1.85
• wasip23 features, 2 on by default, MSRV 1.87.0
• crossbeam-queue3 features, 1 on by default, MSRV 1.60
• dashmap3 features, 0 on by default, MSRV 1.65
• zstd-safe18 features, 3 on by default, MSRV 1.64
• foreign-types1 features, 1 on by default
• wasm-bindgen-futures2 features, 1 on by default, MSRV 1.81
• phf_macros3 features, 0 on by default, MSRV 1.85
• pem-rfc74682 features, 0 on by default, MSRV 1.85
• phf_codegen2 features, 0 on by default, MSRV 1.85
• console4 features, 3 on by default, MSRV 1.71
• zstd17 features, 3 on by default, MSRV 1.64
• addr2line7 features, 5 on by default, MSRV 1.88
• prost-build2 features, 1 on by default, MSRV 1.85
• unicode-bidi6 features, 2 on by default, MSRV 1.47.0
• zstd-sys16 features, 2 on by default, MSRV 1.64
• windows673 features, 1 on by default, MSRV 1.82
• env_logger6 features, 3 on by default, MSRV 1.71
• png3 features, 0 on by default, MSRV 1.73
• num-rational4 features, 2 on by default, MSRV 1.60
• concurrent-queue1 features, 1 on by default, MSRV 1.60
• zlib-rs11 features, 2 on by default, MSRV 1.75
• openssl-sys4 features, 0 on by default, MSRV 1.80.0
• pem2 features, 1 on by default, MSRV 1.71.0
• tokio-tungstenite9 features, 2 on by default, MSRV 1.85
• wasmparser9 features, 7 on by default, MSRV 1.88.0
• bindgen10 features, 3 on by default, MSRV 1.71.0
• rustls-platform-verifier4 features, 0 on by default, MSRV 1.85
• libsqlite3-sys16 features, 1 on by default
• jiff16 features, 7 on by default, MSRV 1.70
• zip24 features, 9 on by default, MSRV 1.88
• simdutf85 features, 1 on by default
• fallible-iterator2 features, 1 on by default
• openssl9 features, 0 on by default, MSRV 1.80.0
• rustls-pemfile1 features, 1 on by default
• crypto-bigint7 features, 1 on by default, MSRV 1.87
• rand_pcg1 features, 0 on by default, MSRV 1.85
• constant_time_eq1 features, 1 on by default, MSRV 1.66.0
• security-framework-sys8 features, 1 on by default, MSRV 1.70
• valuable3 features, 1 on by default, MSRV 1.56
• base16ct1 features, 0 on by default, MSRV 1.85
• tracing-serde1 features, 0 on by default, MSRV 1.63.0
• pest4 features, 2 on by default, MSRV 1.83
• backtrace10 features, 1 on by default, MSRV 1.82.0
• fancy-regex7 features, 4 on by default, MSRV 1.66
• combine8 features, 1 on by default
• event-listener-strategy3 features, 1 on by default, MSRV 1.60
• multimap1 features, 1 on by default
• async-channel2 features, 1 on by default, MSRV 1.60
• curve25519-dalek7 features, 3 on by default, MSRV 1.85.0
• camino2 features, 0 on by default, MSRV 1.61.0
• whoami4 features, 3 on by default, MSRV 1.75
• ff4 features, 2 on by default, MSRV 1.85
• mime_guess1 features, 1 on by default
• elliptic-curve10 features, 1 on by default, MSRV 1.85
• sec17 features, 2 on by default, MSRV 1.85
• group3 features, 1 on by default, MSRV 1.85
• opentelemetry8 features, 5 on by default, MSRV 1.75.0
• brotli17 features, 1 on by default, MSRV 1.59.0
• ureq22 features, 2 on by default, MSRV 1.85
• humantime1 features, 0 on by default, MSRV 1.60
• ctutils2 features, 0 on by default, MSRV 1.87
• pyo3-build-config3 features, 0 on by default, MSRV 1.85
• clang-sys25 features, 0 on by default
• unicode-properties2 features, 2 on by default
• ecdsa10 features, 1 on by default, MSRV 1.85
• brotli-decompressor8 features, 1 on by default
• pest_derive2 features, 1 on by default, MSRV 1.83
• ucd-trie1 features, 1 on by default
• pest_meta1 features, 0 on by default, MSRV 1.83
• wasm-encoder2 features, 2 on by default, MSRV 1.88.0
• pest_generator3 features, 1 on by default, MSRV 1.83
• aead4 features, 1 on by default, MSRV 1.85
• async-lock2 features, 1 on by default, MSRV 1.85
• which3 features, 1 on by default, MSRV 1.70
• pyo325 features, 1 on by default, MSRV 1.85
• pyo3-ffi12 features, 0 on by default, MSRV 1.85
• pyo3-macros-backend2 features, 0 on by default, MSRV 1.85
• pyo3-macros3 features, 0 on by default, MSRV 1.85
• num6 features, 1 on by default, MSRV 1.60
• xattr1 features, 1 on by default
• bitvec4 features, 2 on by default, MSRV 1.56
• cast1 features, 0 on by default
• rand_xorshift1 features, 0 on by default, MSRV 1.85
• alloc-stdlib1 features, 0 on by default
• ed25519-dalek11 features, 2 on by default, MSRV 1.85
• jni2 features, 0 on by default, MSRV 1.85.0
• ciborium1 features, 1 on by default, MSRV 1.58
• ciborium-ll2 features, 0 on by default, MSRV 1.58
• ciborium-io2 features, 0 on by default, MSRV 1.58
• radium2 features, 0 on by default, MSRV 1.60
• flume4 features, 3 on by default
• alloc-no-stdlib1 features, 0 on by default
• wyz2 features, 1 on by default, MSRV 1.40
• opentelemetry_sdk17 features, 4 on by default, MSRV 1.75.0
• native-tls3 features, 0 on by default, MSRV 1.80
• funty1 features, 1 on by default
• twox-hash8 features, 6 on by default, MSRV 1.81
• futures-lite3 features, 2 on by default, MSRV 1.60
• erased-serde3 features, 1 on by default, MSRV 1.68
• ed255193 features, 1 on by default, MSRV 1.85
• num_enum3 features, 1 on by default, MSRV 1.70.0
• num_enum_derive3 features, 1 on by default, MSRV 1.70.0
• ctr3 features, 0 on by default, MSRV 1.85
• bs584 features, 1 on by default
• criterion11 features, 3 on by default, MSRV 1.86
• libredox6 features, 6 on by default
• hyper-tls2 features, 0 on by default
• tar0 features, 1 on by default, MSRV 1.63
• yansi6 features, 1 on by default, MSRV 1.63
• image22 features, 2 on by default, MSRV 1.88.0
• cookie5 features, 0 on by default, MSRV 1.56
• embedded-io3 features, 0 on by default, MSRV 1.81
• regex-lite2 features, 2 on by default, MSRV 1.65
• toml_write2 features, 1 on by default, MSRV 1.66
• p25616 features, 5 on by default, MSRV 1.85
• cargo_metadata2 features, 0 on by default, MSRV 1.86.0
• litrs1 features, 0 on by default, MSRV 1.56
• rsa8 features, 3 on by default, MSRV 1.65
• linked-hash-map3 features, 0 on by default
• similar7 features, 2 on by default, MSRV 1.85
• compact_str23 features, 1 on by default, MSRV 1.71
• async-compression18 features, 0 on by default, MSRV 1.83
• pbkdf27 features, 1 on by default, MSRV 1.85
• polyval1 features, 0 on by default, MSRV 1.85
• signal-hook4 features, 2 on by default, MSRV 1.66
• pkcs14 features, 0 on by default, MSRV 1.60
• vsimd4 features, 0 on by default, MSRV 1.63
• document-features1 features, 0 on by default, MSRV 1.56
• jsonwebtoken3 features, 1 on by default, MSRV 1.88.0
• textwrap7 features, 4 on by default, MSRV 1.88
• atoi1 features, 1 on by default, MSRV 1.86.0
• env_filter2 features, 2 on by default, MSRV 1.71
• csv-core1 features, 0 on by default
• ctor3 features, 3 on by default, MSRV 1.60
• globset3 features, 1 on by default, MSRV 1.88
• tonic-build1 features, 1 on by default, MSRV 1.88
• tiny-keccak10 features, 0 on by default
• wit-parser4 features, 3 on by default, MSRV 1.88.0
• borsh5 features, 1 on by default, MSRV 1.77.0
• num-bigint-dig6 features, 2 on by default, MSRV 1.65
• sha1_smol2 features, 0 on by default
• anes1 features, 0 on by default
• proptest13 features, 4 on by default, MSRV 1.88
• aws-smithy-http2 features, 0 on by default, MSRV 1.94.1
• dotenvy1 features, 0 on by default, MSRV 1.56.1
• ghash1 features, 0 on by default, MSRV 1.85
• aes-gcm7 features, 3 on by default, MSRV 1.85
• redox_users1 features, 1 on by default
• iri-string2 features, 1 on by default, MSRV 1.60
• tokio-native-tls1 features, 0 on by default
• indicatif5 features, 2 on by default, MSRV 1.85
• plotters23 features, 12 on by default
• jiff-static3 features, 0 on by default, MSRV 1.70
• sysinfo14 features, 5 on by default, MSRV 1.95
• id-arena1 features, 1 on by default
• plotters-svg2 features, 0 on by default
• primeorder7 features, 0 on by default, MSRV 1.85
• derive_builder3 features, 1 on by default
• derive_builder_core3 features, 0 on by default
• leb128fmt2 features, 1 on by default, MSRV 1.56.0
• colored1 features, 0 on by default, MSRV 1.80
• castaway2 features, 1 on by default
• pulldown-cmark3 features, 2 on by default, MSRV 1.71.1
• derive_builder_macro3 features, 0 on by default
• tracing-opentelemetry1 features, 2 on by default, MSRV 1.75.0
• blake315 features, 1 on by default
• opentelemetry-proto13 features, 1 on by default, MSRV 1.75.0
• glam33 features, 2 on by default, MSRV 1.85.0
• zune-core1 features, 0 on by default, MSRV 1.75.0
• x509-parser3 features, 0 on by default, MSRV 1.67.1
• objc228 features, 1 on by default, MSRV 1.71
• string_cache1 features, 1 on by default, MSRV 1.85
• zune-jpeg5 features, 3 on by default, MSRV 1.75.0
• asn1-rs7 features, 1 on by default, MSRV 1.68
• base64-simd4 features, 2 on by default, MSRV 1.63
• byteorder-lite1 features, 1 on by default, MSRV 1.60
• moxcms24 features, 10 on by default, MSRV 1.89.0
• der-parser5 features, 1 on by default, MSRV 1.63
• wasm-metadata2 features, 2 on by default, MSRV 1.88.0
• wit-component3 features, 0 on by default, MSRV 1.88.0
• weezl3 features, 1 on by default, MSRV 1.88.0
• crossterm8 features, 4 on by default, MSRV 1.63.0
• oid-registry12 features, 1 on by default, MSRV 1.63
• ureq-proto2 features, 2 on by default, MSRV 1.85
• futures-timer1 features, 0 on by default
• heapless12 features, 0 on by default, MSRV 1.87
• arbitrary1 features, 0 on by default, MSRV 1.71.0
• sha33 features, 2 on by default, MSRV 1.85
• wit-bindgen-core2 features, 0 on by default, MSRV 1.85.0
• wit-bindgen-rust2 features, 0 on by default
• opentelemetry-otlp21 features, 6 on by default, MSRV 1.75.0
• downcast-rs2 features, 2 on by default, MSRV 1.56
• hostname1 features, 0 on by default, MSRV 1.74
• wit-bindgen-rust-macro1 features, 1 on by default
• fallible-streaming-iterator1 features, 0 on by default
• predicates3 features, 5 on by default, MSRV 1.74
• zopfli4 features, 3 on by default, MSRV 1.88.0
• encode_unicode1 features, 1 on by default
• keccak1 features, 0 on by default, MSRV 1.85
• futures-intrusive2 features, 1 on by default
• serde_bytes2 features, 1 on by default, MSRV 1.68
• compression-codecs14 features, 0 on by default, MSRV 1.83
• sqlx-core18 features, 0 on by default, MSRV 1.94.0
• bytes-utils2 features, 1 on by default
• sqlx46 features, 4 on by default, MSRV 1.94.0
• sqlx-macros28 features, 0 on by default, MSRV 1.94.0
• objc2-core-foundation55 features, 51 on by default, MSRV 1.71
• block212 features, 1 on by default, MSRV 1.71
• portable-atomic-util2 features, 0 on by default, MSRV 1.36
• inotify1 features, 1 on by default, MSRV 1.70
• approx1 features, 1 on by default
• sqlx-macros-core29 features, 0 on by default, MSRV 1.94.0
• windows-future1 features, 1 on by default, MSRV 1.95
• windows-numerics1 features, 1 on by default, MSRV 1.95
• sqlx-postgres13 features, 0 on by default, MSRV 1.94.0
• windows-collections1 features, 1 on by default, MSRV 1.95
• moka6 features, 0 on by default, MSRV 1.71.1
• aws-smithy-async2 features, 0 on by default, MSRV 1.94.1
• pretty_assertions3 features, 1 on by default
• cbc3 features, 1 on by default, MSRV 1.85
• ptr_meta2 features, 2 on by default, MSRV 1.81
• objc2-foundation185 features, 175 on by default, MSRV 1.71
• aws-smithy-types8 features, 0 on by default, MSRV 1.94.1
• winreg2 features, 0 on by default, MSRV 1.60
• aws-credential-types2 features, 0 on by default, MSRV 1.94.1
• notify4 features, 1 on by default, MSRV 1.77
• opentelemetry-http5 features, 1 on by default, MSRV 1.75.0
• xmlparser1 features, 1 on by default
• proc-macro-error1 features, 1 on by default
• gif3 features, 3 on by default, MSRV 1.62
• rkyv14 features, 2 on by default, MSRV 1.81
• rkyv_derive1 features, 0 on by default, MSRV 1.81
• markup5ever1 features, 0 on by default, MSRV 1.85
• aws-smithy-runtime-api6 features, 0 on by default, MSRV 1.94.1
• rend1 features, 0 on by default
• aws-types1 features, 0 on by default, MSRV 1.94.1
• html5ever2 features, 0 on by default, MSRV 1.85
• raw-cpuid4 features, 0 on by default
• rusqlite38 features, 2 on by default
• rusty-fork1 features, 1 on by default
• aws-sigv45 features, 2 on by default, MSRV 1.94.1
• ignore1 features, 0 on by default, MSRV 1.88
• rusticata-macros1 features, 1 on by default, MSRV 1.65
• blake24 features, 1 on by default, MSRV 1.85
• wasip36 features, 2 on by default, MSRV 1.87.0
• sqlx-mysql10 features, 0 on by default, MSRV 1.94.0
• aws-runtime5 features, 0 on by default, MSRV 1.94.1
• inotify-sys1 features, 0 on by default
• windows-registry1 features, 1 on by default, MSRV 1.95
• sqlx-sqlite20 features, 0 on by default, MSRV 1.94.0
• aws-smithy-runtime10 features, 0 on by default, MSRV 1.94.1
• proc-macro-error22 features, 1 on by default, MSRV 1.61
• chrono-tz4 features, 1 on by default, MSRV 1.65
• async-task1 features, 1 on by default, MSRV 1.57
• objc2-encode2 features, 1 on by default, MSRV 1.71
• shell-words1 features, 1 on by default
• md51 features, 1 on by default
• borsh-derive2 features, 0 on by default, MSRV 1.77.0
• float-cmp2 features, 1 on by default
• instant3 features, 0 on by default
• owo-colors2 features, 0 on by default, MSRV 1.83
• aws-config11 features, 4 on by default, MSRV 1.94.1
• bytecheck0 features, 1 on by default, MSRV 1.81
• bytecount3 features, 0 on by default
• lz4_flex7 features, 5 on by default, MSRV 1.81
• aws-smithy-http-client12 features, 0 on by default, MSRV 1.94.1
• const_format18 features, 0 on by default, MSRV 1.71.0
• tendril1 features, 0 on by default, MSRV 1.71.0
• rust_decimal31 features, 2 on by default, MSRV 1.67.1
• critical-section8 features, 0 on by default
• deadpool5 features, 2 on by default, MSRV 1.85
• tiff6 features, 4 on by default, MSRV 1.85.0
• rcgen5 features, 3 on by default, MSRV 1.88
• aws-sdk-sts9 features, 4 on by default, MSRV 1.94.1
• password-hash3 features, 0 on by default, MSRV 1.85
• deadpool-runtime3 features, 0 on by default, MSRV 1.85
• libz-sys5 features, 2 on by default
• fiat-crypto1 features, 1 on by default, MSRV 1.83.0
• rand_xoshiro1 features, 0 on by default, MSRV 1.85
• piper2 features, 1 on by default, MSRV 1.36
• yasna1 features, 0 on by default, MSRV 1.60
• const_format_proc_macros3 features, 0 on by default, MSRV 1.57.0
• smol_str2 features, 1 on by default, MSRV 1.89
• seahash1 features, 0 on by default
• bzip22 features, 1 on by default, MSRV 1.82.0
• rand_distr4 features, 1 on by default, MSRV 1.85
• cssparser4 features, 2 on by default, MSRV 1.85
• serial_test5 features, 2 on by default, MSRV 1.93.1
• async-executor1 features, 0 on by default, MSRV 1.65
• serial_test_derive3 features, 0 on by default, MSRV 1.93.1
• xxhash-rust7 features, 0 on by default
• fs-err3 features, 0 on by default
• backon6 features, 4 on by default, MSRV 1.85
• getopts2 features, 1 on by default, MSRV 1.66
• io-lifetimes1 features, 0 on by default, MSRV 1.70
• signal-hook-mio4 features, 0 on by default, MSRV 1.66
• matrixmultiply5 features, 2 on by default, MSRV 1.75.0
• mockall1 features, 0 on by default, MSRV 1.77.0
• mockall_derive1 features, 0 on by default
• enumflags21 features, 0 on by default, MSRV 1.56
• fluent-uri4 features, 1 on by default, MSRV 1.68
• notify-types2 features, 0 on by default, MSRV 1.85
• image-webp1 features, 0 on by default, MSRV 1.80.1
• quanta3 features, 2 on by default, MSRV 1.87
• enum-ordinalize2 features, 2 on by default, MSRV 1.89
• rgb8 features, 3 on by default, MSRV 1.64
• p38416 features, 5 on by default, MSRV 1.85
• opentelemetry-semantic-conventions1 features, 0 on by default, MSRV 1.75.0
• raw-window-handle3 features, 0 on by default, MSRV 1.64
• json-patch1 features, 1 on by default
• rstest2 features, 2 on by default, MSRV 1.85.0
• educe13 features, 12 on by default, MSRV 1.89
• cesu81 features, 0 on by default
• atomic4 features, 1 on by default
• insta10 features, 1 on by default, MSRV 1.66.0
• crossbeam3 features, 1 on by default, MSRV 1.61
• lexical-util12 features, 1 on by default, MSRV 1.60.0
• lexical-parse-float8 features, 1 on by default, MSRV 1.60.0
• zvariant_utils1 features, 0 on by default, MSRV 1.87
• lexical-parse-integer6 features, 1 on by default, MSRV 1.60.0
• protobuf1 features, 0 on by default
• axum-macros1 features, 0 on by default, MSRV 1.80
• rmp1 features, 1 on by default, MSRV 1.85
• rstest_macros2 features, 2 on by default, MSRV 1.85
• bigdecimal3 features, 1 on by default
• selectors2 features, 0 on by default
• clap_complete4 features, 0 on by default, MSRV 1.85
• zvariant4 features, 0 on by default, MSRV 1.87
• zvariant_derive1 features, 0 on by default, MSRV 1.87
• enum-ordinalize-derive1 features, 0 on by default, MSRV 1.89
• redis29 features, 5 on by default, MSRV 1.88
• ttf-parser7 features, 5 on by default, MSRV 1.63.0
• jsonptr7 features, 6 on by default, MSRV 1.79.0
• infer2 features, 1 on by default, MSRV 1.74
• ndarray6 features, 1 on by default, MSRV 1.64
• zbus_macros3 features, 3 on by default, MSRV 1.89
• zbus21 features, 5 on by default, MSRV 1.89
• write161 features, 0 on by default
• lexical-core16 features, 5 on by default, MSRV 1.60.0
• fragile2 features, 1 on by default, MSRV 1.56.0
• codespan-reporting4 features, 2 on by default, MSRV 1.67
• jsonschema12 features, 4 on by default, MSRV 1.85.0
• cfg-expr1 features, 0 on by default, MSRV 1.85.0
• ark-std4 features, 1 on by default
• slotmap2 features, 1 on by default, MSRV 1.58.0
• ark-ff3 features, 0 on by default, MSRV 1.75
• ark-serialize5 features, 0 on by default, MSRV 1.75
• hickory-proto10 features, 1 on by default, MSRV 1.88
• headers1 features, 0 on by default, MSRV 1.57
• relative-path4 features, 2 on by default, MSRV 1.85
• prometheus4 features, 1 on by default, MSRV 1.81
• downcast2 features, 1 on by default
• fraction8 features, 3 on by default, MSRV 1.70
• aligned-vec2 features, 1 on by default
• aws-smithy-eventstream4 features, 0 on by default, MSRV 1.94.1
• hickory-resolver23 features, 2 on by default, MSRV 1.88
• cpp_demangle5 features, 1 on by default
• bzip2-sys2 features, 0 on by default
• chacha20poly13057 features, 2 on by default, MSRV 1.85
• nohash-hasher1 features, 1 on by default
• aws-sdk-sso8 features, 3 on by default, MSRV 1.94.1
• resolv-conf1 features, 0 on by default, MSRV 1.61
• derivative1 features, 0 on by default
• arrow-buffer1 features, 0 on by default, MSRV 1.88
• arrow-schema3 features, 0 on by default, MSRV 1.88
• arrow-array4 features, 0 on by default, MSRV 1.88
• aws-sdk-ssooidc8 features, 3 on by default, MSRV 1.94.1
• cookie_store7 features, 2 on by default, MSRV 1.88.0
• flatbuffers2 features, 1 on by default, MSRV 1.51
• arrow-data3 features, 0 on by default, MSRV 1.88
• roxmltree2 features, 2 on by default, MSRV 1.60
• multer4 features, 0 on by default
• lexical-write-float8 features, 1 on by default, MSRV 1.60.0
• lexical-write-integer6 features, 1 on by default, MSRV 1.60.0
• ascii2 features, 1 on by default
• core-graphics4 features, 1 on by default, MSRV 1.65
• widestring3 features, 1 on by default, MSRV 1.58
• profiling7 features, 1 on by default, MSRV 1.60
• rust-ini3 features, 0 on by default, MSRV 1.64
• indenter1 features, 0 on by default, MSRV 1.39
• tikv-jemalloc-sys10 features, 1 on by default, MSRV 1.71.0
• gloo-timers1 features, 0 on by default, MSRV 1.82
• proc-macro2-diagnostics1 features, 0 on by default
• arrow-cast1 features, 0 on by default, MSRV 1.88
• salsa201 features, 0 on by default, MSRV 1.85
• tikv-jemallocator11 features, 1 on by default
• os_pipe1 features, 0 on by default, MSRV 1.63
• ntapi4 features, 1 on by default
• dlv-list2 features, 1 on by default
• logos5 features, 2 on by default, MSRV 1.80.0
• logos-derive3 features, 0 on by default, MSRV 1.80.0
• sketches-ddsketch1 features, 0 on by default
• ordered-multimap1 features, 1 on by default, MSRV 1.64.0
• eyre2 features, 2 on by default, MSRV 1.65.0
• prost-reflect4 features, 0 on by default, MSRV 1.82.0
• aws-sdk-s311 features, 5 on by default, MSRV 1.94.1
• hdrhistogram3 features, 2 on by default, MSRV 1.88
• openssl-src9 features, 0 on by default
• number_prefix1 features, 1 on by default
• arrow-ipc1 features, 0 on by default, MSRV 1.88
• secp256k17 features, 1 on by default, MSRV 1.63.0
• ctrlc1 features, 0 on by default, MSRV 1.69.0
• secp256k1-sys4 features, 1 on by default, MSRV 1.63.0
• x25519-dalek6 features, 2 on by default, MSRV 1.85
• bytesize3 features, 1 on by default, MSRV 1.85
• ron4 features, 1 on by default, MSRV 1.64.0
• wasm-bindgen-backend1 features, 0 on by default, MSRV 1.57
• object_store15 features, 1 on by default, MSRV 1.85
• wayland-sys8 features, 0 on by default, MSRV 1.71
• snafu13 features, 2 on by default, MSRV 1.65
• snafu-derive1 features, 0 on by default, MSRV 1.65
• arrow14 features, 3 on by default, MSRV 1.88
• config9 features, 8 on by default, MSRV 1.88.0
• scroll2 features, 1 on by default, MSRV 1.85
• comfy-table5 features, 1 on by default, MSRV 1.88
• reqwest-middleware8 features, 0 on by default
• integer-encoding2 features, 0 on by default
• vte3 features, 1 on by default, MSRV 1.62.1
• metrics-util7 features, 5 on by default, MSRV 1.71.1
• k25617 features, 6 on by default, MSRV 1.85
• tracing-futures4 features, 2 on by default
• scc1 features, 0 on by default, MSRV 1.85.0
• triomphe2 features, 3 on by default, MSRV 1.85
• sdd1 features, 0 on by default, MSRV 1.85.0
• lazycell2 features, 0 on by default
• governor4 features, 4 on by default
• value-bag14 features, 0 on by default
• assert_cmd2 features, 0 on by default, MSRV 1.85
• dialoguer5 features, 2 on by default, MSRV 1.66
• Inflector2 features, 1 on by default
• typed-arena1 features, 1 on by default
• lalrpop-util3 features, 3 on by default, MSRV 1.86
• ansi_term1 features, 0 on by default
• procfs2 features, 3 on by default, MSRV 1.70
• cbindgen1 features, 1 on by default, MSRV 1.74
• thrift2 features, 1 on by default
• os_str_bytes3 features, 2 on by default, MSRV 1.81.0
• backoff4 features, 0 on by default
• doc-comment2 features, 0 on by default
• nalgebra25 features, 2 on by default, MSRV 1.89.0
• vec_map1 features, 0 on by default
• sha-15 features, 1 on by default
• libgit2-sys6 features, 0 on by default
• git28 features, 0 on by default
• adler2 features, 1 on by default
• handlebars6 features, 0 on by default, MSRV 1.85
• waker-fn1 features, 0 on by default, MSRV 1.51
• ouroboros1 features, 1 on by default
• ouroboros_macro1 features, 0 on by default
• serde_qs11 features, 0 on by default, MSRV 1.85
• crypto-mac2 features, 0 on by default
• bytestring1 features, 0 on by default, MSRV 1.88
• wit-bindgen-rt1 features, 0 on by default
• async-global-executor2 features, 1 on by default, MSRV 1.80
• void1 features, 1 on by default
• actix-rt3 features, 3 on by default, MSRV 1.88
• adler322 features, 1 on by default
• jpeg-decoder2 features, 1 on by default, MSRV 1.61.0
• serde_cbor4 features, 1 on by default
• async-std9 features, 8 on by default, MSRV 1.63
• lru-cache1 features, 0 on by default
• chrono-tz-build3 features, 0 on by default, MSRV 1.65
• remove_dir_all3 features, 0 on by default
• tokio-retry1 features, 1 on by default, MSRV 1.85
• webpki2 features, 0 on by default, MSRV 1.61.0
• match_cfg1 features, 1 on by default
• structopt9 features, 1 on by default
• structopt-derive1 features, 0 on by default

Feature flags in 4 lines

• Features are switches a crate offers to compile optional code or dependencies.
• default lists what is on unless you write default-features = false.
• Features add up across your whole dependency tree: if any crate turns one on, everyone gets it.
• Turning off defaults is the main way to cut compile time and binary size.