proc-macro-error2 is used at run time in 2,183 crates (of which 567 optionally). It is a direct run-time dependency in 68 crates. It's used at build time in 168 crates (of which 69 optionally, ). It's used only as a dev dependency in 121 crates.

Depender (with downloads and own rev deps) proc-macro-error2 version
993K 17 validator_derive ^2
684K 246 getset ^2
661K 4 sea-bae ^2
622K 1 tabled_derive ^2.0.1
558K 11 alloy-sol-macro >=2.0.0, <=2.0.1
527K 8 syn_derive ^2.0
399K 52 aquamarine ^2
396K 2 alloy-sol-macro-expander >=2.0.0, <=2.0.1
198K 1 defmt-macros ^2
190K 1 mysql-common-derive ^2.0.1
171K 3 subxt-macro ^2.0.0
119K 1 cmd_lib_macros ^2
110K 5 wasmer-derive ^2.0.1
90K 24 dynasm ^2.0.1
75K 1 serde_valid_derive ^2.0.0
71K 1 fastrace-macro ^2.0.1
66K 1 axum_typed_multipart_macros ^2.0.1
65K 5 leptos_macro ^2.0
50K 21 i18n-embed-fl ^2.0.1
27K 2 impl-tools-lib ^2.0
27K 11 impl-tools ^2.0
24K 2 shuttle-codegen ^2.0.1
22K 1 reactive_stores_macro ^2.0
69K 4 mlua_derive optional ^2.0.1
22K 4 esp-hal-procmacros ^2.0.1
22K 1 iai-callgrind-macros ^2.0.1
20K 12 test-with ^2.0
16K 2 leptos_router_macro ^2.0
17K 3 paperclip-macros ^2.0.1
13K 1 arrow_convert_derive ^2
12K 1 build-info-proc ^2.0
8.5K 1 matrix-pickle-derive ^2.0.1
5.8K 1 hdf5-metno-derive ^2.0
5.1K 1 rtic-macros ^2.0
4.1K 2 avian_derive ^2.0
3.7K 1 sqlx-conditional-queries-macros ^2.0.1
3.7K 1 typescript-type-def-derive ^2.0.1
2.7K 1 nom-rule ^2
2.0K 1 hcaptcha_derive ^2.0.1
1.3K 1 positional_derive ^2.0
1.2K 1 quork-proc ^2.0
950 8 savefile-derive ^2.0.1
950 1 conflate_derive ^2.0
500 1 deriving_via_macros ^2.0.1
490 1 git-ref-format-macro ^2
350 1 graphql-starter-macros ^2
230 1 partial_config_derive ^2.0
220 1 derive-mmio-macro ^2.0.1
220 1 model-mapper-macros ^2
190 1 toml-example-derive ^2.0
190 1 leptos-mview-core ^2
190 1 leptos-mview-macro ^2
170 1 leptos-routable-macro ^2.0.1
130 static_table ^2.0.1
110 single-trait-impl ^2.0.1
100 1 fn-bnf-macro ^2
100 1 leptos-routes-macro ^2.0.1
1 mdsycx-macro ^2.0.1
1 const-type-layout-derive ^2.0
1 easy_proc_derive ^2.0.1
vfs-shadow ^2
2 easy_proc_common ^2.0.1
1 easy_proc ^2.0.1
5 getset2 ^2
1 hcaptcha_derive_no_wasm ^2.0.1
1 hdf5-dst-derive ^2
zyc_getset ^2
altgetset ^2