Compilation Broke on Nightly

[HTGAzureX1212]

With the latest nightly build, the compilation fails with the following errors:

error: Expected literal
   --> /home/REDACTED/.cargo/registry/src/gh.neting.cc-1ecc6299db9ec823/rdkafka-sys-4.3.0+1.9.2/src/bindings.rs:182:32
    |
182 |     RD_KAFKA_RESP_ERR__BEGIN = -200,
    |                                ^^^^

error[E0277]: the trait bound `rd_kafka_resp_err_t: From<i32>` is not satisfied
   --> /home/REDACTED/.cargo/registry/src/gh.neting.cc-1ecc6299db9ec823/rdkafka-sys-4.3.0+1.9.2/src/types.rs:455:58
    |
455 |         let description = match RDKafkaRespErr::try_from(*self as i32) {
    |                                 ------------------------ ^^^^^^^^^^^^ the trait `From<i32>` is not implemented for `rd_kafka_resp_err_t`
    |                                 |
    |                                 required by a bound introduced by this call
    |
    = note: required for `i32` to implement `Into<rd_kafka_resp_err_t>`
    = note: required for `rd_kafka_resp_err_t` to implement `TryFrom<i32>`

error[E0277]: the trait bound `rd_kafka_resp_err_t: From<i32>` is not satisfied
   --> /home/REDACTED/.cargo/registry/src/gh.neting.cc-1ecc6299db9ec823/rdkafka-sys-4.3.0+1.9.2/src/types.rs:455:33
    |
455 |         let description = match RDKafkaRespErr::try_from(*self as i32) {
    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `From<i32>` is not implemented for `rd_kafka_resp_err_t`
    |
    = note: required for `i32` to implement `Into<rd_kafka_resp_err_t>`
    = note: required for `rd_kafka_resp_err_t` to implement `TryFrom<i32>`

Toolchain Metadata

rustc 1.68.0-nightly (3020239de 2023-01-09)
binary: rustc
commit-hash: 3020239de947ec52677e9b4e853a6a9fc073d1f9
commit-date: 2023-01-09
host: x86_64-unknown-linux-gnu
release: 1.68.0-nightly
LLVM version: 15.0.6

[Dhghomon]

I've been getting the same thing on stable (stable-x86_64-pc-windows-msvc) as of a few hours ago. Looks like I'm not alone!

[jaudiger]

I also got this error this morning on Rust 1.66.0 after having updated my dependencies, it was the delta (not sure if it can help):

    Updating crates.io index
    Updating axum v0.6.1 -> v0.6.2
    Updating axum-core v0.3.0 -> v0.3.1
    Updating num_enum v0.5.7 -> v0.5.8
    Updating num_enum_derive v0.5.7 -> v0.5.8
    Updating regex v1.7.0 -> v1.7.1
    Updating schannel v0.1.20 -> v0.1.21
    Removing windows-sys v0.36.1
    Removing windows_aarch64_msvc v0.36.1
    Removing windows_i686_gnu v0.36.1
    Removing windows_i686_msvc v0.36.1
    Removing windows_x86_64_gnu v0.36.1
    Removing windows_x86_64_msvc v0.36.1

[sirius1223]

same issue happed on linux and macos

[SergeStrashko]

its because of num_enum pin it to 0.5.0 and be happy.

[Degete]

Exactly, the new update for the num_enum package is causing the issue, which was release 5h ago, around when everyone started to have issues.
illicitonion/num_enum@7acc582

As a temporary measure, you can just pin the version in your Cargo.toml until they release a new version fixing it:
num_enum = "=0.5.0"

If your Cargo.lock is already updated and still have issues, you might want to pin as well:
num_enum_derive =“=0.5.0"

[jaudiger]

The num_enum crate version responsible for this build failure has been yanked. The problem should now be solved.

[HTGAzureX1212]

Closing as solved.