rust 1.47.0, cargo 0.47.0 fail to build

[essandess (Steve Smith)]

I'm trying to update rust to version 1.47.0 and cargo to version 0.47.0.

I'm hitting a lot of compiler errors:

:info:build    Compiling std v0.0.0 (/opt/local/var/macports/build/_opt_local_ports_lang_rust/rust/work/rustc-1.47.0-src/library/std)
:info:build error: unknown lint: `clashing_extern_declarations`
:info:build    --> library/core/src/lib.rs:301:9
:info:build     |
:info:build 301 | #[allow(clashing_extern_declarations)]
:info:build     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
:info:build     |
:info:build     = note: `-D unknown-lints` implied by `-D warnings`
:info:build error: unknown lint: `clashing_extern_declarations`
:info:build    --> library/core/src/lib.rs:301:9
:info:build     |
:info:build 301 | #[allow(clashing_extern_declarations)]
:info:build     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
:info:build    Compiling hashbrown v0.8.2
:info:build error[E0658]: the `#[track_caller]` attribute is an experimental feature
:info:build   --> library/core/src/ops/index.rs:65:5
:info:build    |
:info:build 65 |     #[track_caller]
:info:build    |     ^^^^^^^^^^^^^^^

Full log attached.

Also see:

• ​https://github.com/macports/macports-ports/pull/8694
• ​https://github.com/macports/macports-ports/pull/8695

[ryandesign (Ryan Carsten Schmidt)]

Maybe ​https://github.com/rust-lang/rust/issues/74628?

[g5pw (Aljaž Srebrnič)]

Please don’t open tickets for errors that are not in the tree (yet)... the build error is due to the fact that the bootstrap rustc version is too old. A good place to check when trying to update a port is to look at the git history to see how it was updated in the past.

[chrstphrchvz (Christopher Chavez)]

I think it would be valid to have opened this as an "update" ticket i.e. to request it be updated, but then explaining the difficulty encountered when trying to do so.

[ryandesign (Ryan Carsten Schmidt)]

rust and cargo have been updated to 1.47.0 and 0.47.0. Is this ticket still relevant?

[g5pw (Aljaž Srebrnič)]

No, and it has been closed :)