Can't compile when the header is enabled and the form feature is disabled.

[MarcelCoding]

Bug Report

Version

├── axum v0.5.8
│   ├── axum-core v0.2.6
├── axum-extra v0.3.4
│   ├── axum v0.5.8 (*)

Platform

Linux pc-marcel 5.18.5-200.fc36.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Jun 16 14:51:11 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

Crates

https://github.com/MarcelCoding/jitsi-openid/blob/681f0f68806edae42dd7b06fce1de8547199bbba/Cargo.toml#L7-L20

Description

If you try to compile using the header but not using the form feature the following error happens:

/home/marcel/.cargo/bin/cargo build --color=always --message-format=json-diagnostic-rendered-ansi --package jitsi-openid --bin jitsi-openid
   Compiling axum v0.5.8
error[E0432]: unresolved import `form`
   --> /home/marcel/.cargo/registry/src/github.com-1ecc6299db9ec823/axum-0.5.8/src/lib.rs:441:9
    |
441 | pub use form::Form;
    |         ^^^^ use of undeclared crate or module `form`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0432`.
error: could not compile `axum` due to 2 previous errors
Process finished with exit code 101

This error does not happen if you activate the form feature.

My uneducated guess is that the is missing a feature check for the form feature:
https://github.com/tokio-rs/axum/blob/main/axum/src/lib.rs#L440

[davidpdrsn]

Thanks! Looks like I fat fingered that in #1095. Kinda surprised CI didn't catch it 🤔