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Explicit 'extern crate proc_macro;' is needed for stable channel #5690
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It looks like @infinity0 signed our Contributor License Agreement. 👍 Many thanks, Parity Technologies CLA Bot |
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You are linking issues from 2018, I don't think that anything from 2018 applies today. Especially as with 1.42, it is not required anymore to put a And, we always compile with Rust stable and everything works ;) |
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Ah, the issue must be cargo, we still have an outdated version of cargo in Debian. |
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Probably. |
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As a follow-up to PR #3844, this PR is needed to make things work for rustc 1.42 stable with nightly features enabled.
The background is rust-lang/rust#54116 and in particular see rust-lang/rust#53166 (comment)