error[E0658]: match is not allowed in a const fn

[shangsony]

error[E0658]: match is not allowed in a const fn
-->/socket2-0.4.0/src/lib.rs:156:9
|
156 | / match address {
157 | | SocketAddr::V4() => Domain::IPV4,
158 | | SocketAddr::V6() => Domain::IPV6,
159 | | }
| |_________^
|
= note: see issue #49146 rust-lang/rust#49146 for more information

Compiling time v0.1.43
error: aborting due to previous error

[Thomasdezeeuw]

Socket2 v0.4 requires rustc v1.46.

[tychota]

Note: the readme speak about minimum supported version of rust.

For me that means that new version should works.

Except they doesn't:

can you consider making compatibility to new rust version a goal to v0.5 ?

[tychota]

@Thomasdezeeuw can you reopen ?

[Thomasdezeeuw]

@tychota I think you're doing something wrong. socket2 rust on rustc 1.46 stable. Are you sure you're calling the same rustc?

P.S. could you also not use images of texts, it's very annoying to read.

[tychota]

@Thomasdezeeuw i will try to make a minimal example that reproduce and then report here.

My bad for the image, i will paste texte next time.

[Thomasdezeeuw]

@tychota you're really running a different/incorrect rustc binary. Per the 1.46 blogpost: https://blog.rust-lang.org/2020/08/27/Rust-1.46.0.html#const-fn-improvements, match statements are const, which the error is about.

[tychota]

All clear. I indeed has an old rust binary somewhere.

Sorry for the noise.