proc-macro-error2 is used at run time in 2,691 crates (of which 637 optionally). It is a direct run-time dependency in 85 crates. It's used at build time in 168 crates (of which 71 optionally, ). It's used only as a dev dependency in 133 crates.

Depender (with downloads and own rev deps) proc-macro-error2 version
1.3M 17 validator_derive ^2
994K 1 tabled_derive ^2.0.1
952K 282 getset ^2
859K 4 sea-bae ^2
493K 10 alloy-sol-macro >=2.0.0, <=2.0.1
450K 3 alloy-sol-macro-expander >=2.0.0, <=2.0.1
420K 9 syn_derive ^2.0
352K 60 aquamarine ^2
342K 1 defmt-macros ^2
250K 3 subxt-macro ^2.0.0
204K 1 fastrace-macro ^2.0.1
193K 1 mysql-common-derive ^2.0.1
145K 1 cmd_lib_macros ^2
139K 5 wasmer-derive ^2.0.1
126K 1 axum_typed_multipart_macros ^2.0.1
105K 24 dynasm ^2.0.1
76K 5 leptos_macro ^2.0
69K 1 serde_valid_derive ^2.0.0
51K 23 i18n-embed-fl ^2.0.1
37K 1 iai-callgrind-macros ^2.0.1
32K 2 merge_derive ^2.0
93K 4 mlua_derive optional ^2.0.1
29K 1 arrow_convert_derive ^2
29K 1 typescript-type-def-derive ^2.0.1
28K 1 reactive_stores_macro ^2.0
25K 13 impl-tools ^2.0
25K 2 impl-tools-lib ^2.0
25K 12 test-with ^2.0
20K 2 leptos_router_macro ^2.0
19K 2 shuttle-codegen ^2.0.1
18K 4 esp-hal-procmacros ^2.0.1
16K 3 paperclip-macros ^2.0.1
13K 1 nu-derive-value ^2.0
11K 13 pio-proc ^2.0
8.0K 1 build-info-proc ^2.0
7.4K 1 matrix-pickle-derive ^2.0.1
7.2K 1 multi_index_map_derive ^2.0
6.5K 1 hdf5-metno-derive ^2.0
4.7K 2 avian_derive ^2.0
3.8K 1 rtic-macros ^2.0
3.5K 1 nom-rule ^2
3.1K 1 sqlx-conditional-queries-macros ^2.0.1
2.5K 1 quork-proc ^2.0
1.8K 1 conflate_derive ^2.0
1.7K 1 hcaptcha_derive ^2.0.1
700 1 positional_derive ^2.0
650 1 deriving_via_macros ^2.0.1
500 1 git-ref-format-macro ^2
500 9 savefile-derive ^2.0.1
460 2 qty-macros ^2
450 1 disjoint_impls ^2.0.1
380 1 partial_config_derive ^2.0
360 1 derive-mmio-macro ^2.0.1
320 1 easy_proc_derive ^2.0.1
320 1 easy_proc ^2.0.1
310 1 leptos-routable-macro ^2.0.1
300 2 easy_proc_common ^2.0.1
300 1 graphql-starter-macros ^2
240 1 staticrypt_macros ^2.0.1
220 static_table ^2.0.1
210 1 frozen-collections-macros ^2.0.1
190 1 leptos-mview-core ^2
180 1 leptos-mview-macro ^2
170 1 dynamic-plugin-macros ^2.0.1
130 lazyregex ^2
100 1 hdf5-dst-derive ^2
100 yew-html-ext ^2
1 mdsycx-macro ^2.0.1
single-trait-impl ^2.0.1
1 despatma-dependency-container ^2.0.0
1 toml-example-derive ^2.0
5 getset2 ^2
1 model-mapper-macros ^2
1 combi ^2.0.1
enumtrait ^2.0.1
1 leptos-routes-macro ^2.0.1
altgetset ^2
1 fn-bnf-macro ^2
zyc_getset ^2
1 hcaptcha_derive_no_wasm ^2.0.1
1 exemplar_proc_macro ^2.0.1
vfs-shadow ^2
1 sqlx-utils-macro ^2.0.1
1 const-type-layout-derive ^2.0
1 covey-manifest-macros ^2