Hi,
This looks like a bug either in proc-macro2 (which means that you could
try changing the version with a different constraint in Cargo.toml) or a
bug in this nightly of rustc from what I can gather online. I've never
seen this error.
On 10/16/24 3:39 PM, PIERRE AUGIER wrote:
Hi,
I try to run Mercurial tests from the mercurial-devel repository and I get an
error related to Rust. I'm using rustc 1.81.0-nightly (24d2ac0b5 2024-07-15)
and I obtain:
Compiling proc-macro2 v1.0.47
Compiling quote v1.0.21
Compiling unicode-ident v1.0.5
Compiling syn v1.0.109
Compiling typenum v1.15.0
error[E0635]: unknown feature `proc_macro_span_shrink`
-->
/home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
|
92 | feature(proc_macro_span, proc_macro_span_shrink)
| ^^^^^^^^^^^^^^^^^^^^^^
How can I avoid this error?
Regards,
Pierre
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