proc-macro-error2 is used at run time in 2,789 crates (of which 672 optionally). It is a direct run-time dependency in 93 crates. It's used at build time in 167 crates (of which 71 optionally, ). It's used only as a dev dependency in 138 crates.

Depender (with downloads and own rev deps) proc-macro-error2 version
1.4M 17 validator_derive ^2
970K 1 tabled_derive ^2.0.1
920K 290 getset ^2
801K 4 sea-bae ^2
518K 10 alloy-sol-macro >=2.0.0, <=2.0.1
477K 3 alloy-sol-macro-expander >=2.0.0, <=2.0.1
373K 9 syn_derive ^2.0
372K 61 aquamarine ^2
318K 1 defmt-macros ^2
259K 3 subxt-macro ^2.0.0
190K 1 mysql-common-derive ^2.0.1
178K 1 fastrace-macro ^2.0.1
137K 1 cmd_lib_macros ^2
128K 1 axum_typed_multipart_macros ^2.0.1
103K 5 wasmer-derive ^2.0.1
86K 5 leptos_macro ^2.0
78K 24 dynasm ^2.0.1
61K 1 serde_valid_derive ^2.0.0
52K 23 i18n-embed-fl ^2.0.1
42K 1 iai-callgrind-macros ^2.0.1
33K 1 arrow_convert_derive ^2
33K 2 reactive_stores_macro ^2.0
31K 1 typescript-type-def-derive ^2.0.1
29K 2 merge_derive ^2.0
88K 4 mlua_derive optional ^2.0.1
26K 13 impl-tools ^2.0
26K 2 impl-tools-lib ^2.0
24K 14 test-with ^2.0
23K 2 leptos_router_macro ^2.0
23K 2 shuttle-codegen ^2.0.1
21K 4 esp-hal-procmacros ^2.0.1
16K 1 nu-derive-value ^2.0
12K 3 paperclip-macros ^2.0.1
12K 13 pio-proc ^2.0
8.6K 1 multi_index_map_derive ^2.0
7.8K 1 matrix-pickle-derive ^2.0.1
7.7K 1 hdf5-metno-derive ^2.0
6.9K 1 hax-lib-macros ^2.0
6.6K 1 build-info-proc ^2.0
6.4K 1 sqlx-conditional-queries-macros ^2.0.1
4.6K 2 avian_derive ^2.0
4.5K 1 trait-gen ^2.0.1
4.2K 1 rtic-macros ^2.0
3.3K 1 nom-rule ^2
2.8K 1 conflate_derive ^2.0
2.5K 1 quork-proc ^2.0
2.2K 1 hcaptcha_derive ^2.0.1
750 9 savefile-derive ^2.0.1
750 2 qty-macros ^2
600 1 knus-derive ^2.0.1
600 1 git-ref-format-macro ^2
550 2 easy_proc_common ^2.0.1
550 1 easy_proc_derive ^2.0.1
550 1 easy_proc ^2.0.1
470 1 deriving_via_macros ^2.0.1
300 1 disjoint_impls ^2.0.1
260 1 leptos-routable-macro ^2.0.1
250 1 graphql-starter-macros ^2
240 1 partial_config_derive ^2.0
220 1 ferrishot-knus-derive ^2.0.1
210 1 frozen-collections-macros ^2.0.1
200 1 const-type-layout-derive ^2.0
180 1 positional_derive ^2.0
180 variants-struct ^2.0.1
170 yew-html-ext ^2
160 static_table ^2.0.1
140 1 exemplar_proc_macro ^2.0.1
130 1 collage-macros ^2.0.1
110 1 abstract-bits-derive ^2
100 1 model-mapper-macros ^2
1 derive-mmio-macro ^2.0.1
single-trait-impl ^2.0.1
1 captval_derive ^2.0.1
1 staticrypt_macros ^2.0.1
1 leptos-mview-macro ^2
1 leptos-mview-core ^2
1 dynamic-plugin-macros ^2.0.1
1 despatma-dependency-container ^2.0.0
1 leptos-routes-macro ^2.0.1
1 toml-example-derive ^2.0
5 getset2 ^2
enumtrait ^2.0.1
1 hcaptcha_derive_no_wasm ^2.0.1
1 fn-bnf-macro ^2
1 hdf5-dst-derive ^2
lazyregex ^2
altgetset ^2
1 mdsycx-macro ^2.0.1
zyc_getset ^2
1 sqlx-utils-macro ^2.0.1
vfs-shadow ^2
1 combi ^2.0.1
1 covey-manifest-macros ^2