Transition future compat lints to {ERROR, DENY} - Take 2 #65785

Centril · 2019-10-25T00:55:40Z

Follow up to #63247 implementing #63247 (comment).

legacy_ctor_visibility (ERROR) -- closes Tracking issue for legacy_constructor_visibility compatibility lint #39207
legacy_directory_ownership (ERROR) -- closes legacy_directory_ownership future-compatibility warnings #37872
safe_extern_static (ERROR) -- closes Tracking issue for safe_extern_statics compatibility lint #36247
parenthesized_params_in_types_and_modules (ERROR) -- closes parenthesized_params_in_types_and_modules future-compatibility warnings #42238
duplicate_macro_exports (ERROR)
nested_impl_trait (ERROR) -- closes Tracking issue for nested_impl_trait compatibility lint #59014
ill_formed_attribute_input (DENY) -- transitions Tracking issue for future-incompatibility lint ill_formed_attribute_input #57571
patterns_in_fns_without_body (DENY) -- transitions Tracking issue for future-incompatibility lint patterns_in_fns_without_body #35203

Centril · 2019-10-25T08:22:44Z

The PR builder is finally happy. 🎉

src/libsyntax/attr/builtin.rs

petrochenkov · 2019-10-25T20:22:02Z

Also, legacy_ctor_visibility had a large number of regressions in the crater run in #63247, but most of them from unstable syntex_syntax (expected function, found struct ast::Name), so it should be ok.

Centril · 2019-10-27T15:39:15Z

@petrochenkov @varkor This should be ready again for review now.

oli-obk · 2019-11-06T12:20:42Z

I'm all for this, but the precedent also had fix-PRs open for the crates that will break and did a reverse dependency analysis.

I know that doing so is a lot of work, but we do have our stability story. Picking an arbitrary threshold (like 5) of broken crates where it's ok to go to an error, seems a bit odd to me. Then again, we have to do this PR at some point and the forward compat lints have been triggering for a while.

I'm unsure how to proceed, thus my question about talking this through in a team meeting or just giving everyone a chance to sign off or comment.

oli-obk · 2019-11-08T12:30:24Z

Seems like all the crates affected are abandoned (which would explain why they haven't been fixed).

@bors r+

bors · 2019-11-08T12:30:26Z

📌 Commit 574d2b8 has been approved by oli-obk

@varkor

Transition future compat lints to {ERROR, DENY} - Take 2 Follow up to rust-lang#63247 implementing rust-lang#63247 (comment). - `legacy_ctor_visibility` (ERROR) -- closes rust-lang#39207 - `legacy_directory_ownership` (ERROR) -- closes rust-lang#37872 - `safe_extern_static` (ERROR) -- closes rust-lang#36247 - `parenthesized_params_in_types_and_modules` (ERROR) -- closes rust-lang#42238 - `duplicate_macro_exports` (ERROR) - `nested_impl_trait` (ERROR) -- closes rust-lang#59014 - `ill_formed_attribute_input` (DENY) -- transitions rust-lang#57571 - `patterns_in_fns_without_body` (DENY) -- transitions rust-lang#35203 r? @varkor cc @petrochenkov

bors · 2019-11-08T15:43:41Z

⌛ Testing commit 574d2b8 with merge 230ebbbe9d0ea2faf5fe586b8f3f049b6f571c4b...

@varkor

Transition future compat lints to {ERROR, DENY} - Take 2 Follow up to rust-lang#63247 implementing rust-lang#63247 (comment). - `legacy_ctor_visibility` (ERROR) -- closes rust-lang#39207 - `legacy_directory_ownership` (ERROR) -- closes rust-lang#37872 - `safe_extern_static` (ERROR) -- closes rust-lang#36247 - `parenthesized_params_in_types_and_modules` (ERROR) -- closes rust-lang#42238 - `duplicate_macro_exports` (ERROR) - `nested_impl_trait` (ERROR) -- closes rust-lang#59014 - `ill_formed_attribute_input` (DENY) -- transitions rust-lang#57571 - `patterns_in_fns_without_body` (DENY) -- transitions rust-lang#35203 r? @varkor cc @petrochenkov

Centril · 2019-11-08T15:52:08Z

@bors retry rolled up.

@ghost

Rollup of 5 pull requests Successful merges: - #65785 (Transition future compat lints to {ERROR, DENY} - Take 2) - #66007 (Remove "here" from "expected one of X here") - #66043 (rename Memory::get methods to get_raw to indicate their unchecked nature) - #66154 (miri: Rename to_{u,i}size to to_machine_{u,i}size) - #66188 (`MethodSig` -> `FnSig` & Use it in `ItemKind::Fn`) Failed merges: r? @ghost

bors · 2019-11-08T19:10:06Z

⌛ Testing commit 574d2b8 with merge 1465351c3dbabfa79ff87afa4e90c34d77be68ae...

rust-highfive · 2019-11-08T19:12:12Z

Your PR failed (pretty log, raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

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I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

resolve: Minor cleanup of duplicate macro reexports Enabled by rust-lang#65785 which changed `duplicate_macro_exports` from a lint to a hard error.

It was not initially clear to me why, after changing `.filter(...).next()` to `.find(...)`, the borrow checker as of Rust 1.41.1 required me to inline `all.lines()` at this point : error[E0596]: cannot borrow `lines` as mutable, as it is not declared as mutable --> tyrga-bin/../build.rs:53:33 | 52 | let lines = all.lines(); | ----- help: consider changing this to be mutable: `mut lines` 53 | let wrote = lines | ^^^^^ cannot borrow as mutable error: aborting due to previous error For more information about this error, try `rustc --explain E0596`. but it [appears][0] that the new error is [expected][1], and that if I had been using `.find()` previously instead of `.filter(...).next()`, I would have seen a non-fatal "compat" lint under previous compiler versions, leading me in the same direction. [0]: rust-lang/rust#68729 [1]: rust-lang/rust#65785

The panics are removed as rust-lang/rust#65785 has made them an error and the compiler will complain anyway for ill formed attributes. The use _could_ allow them, technically. But this doesn't really exist: https://github.com/search?q=allow%28ill_formed_attribute_input%29&type=code Shows 4 occurences at time of commit. I would also think that users that enable this, should know what they are doing ;) Signed-off-by: Marcel Müller <[email protected]>

rust-highfive assigned varkor Oct 25, 2019

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Oct 25, 2019

Centril force-pushed the compat-to-error-2 branch from 4b41197 to a512b6c Compare October 25, 2019 01:00

Centril changed the title ~~[WIP] Transition future compat lints to {ERROR, DENY} - Take 2~~ Transition future compat lints to {ERROR, DENY} - Take 2 Oct 25, 2019

Centril force-pushed the compat-to-error-2 branch from a512b6c to adfa047 Compare October 25, 2019 01:19

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Centril force-pushed the compat-to-error-2 branch from adfa047 to af3b20a Compare October 25, 2019 03:51

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Centril force-pushed the compat-to-error-2 branch from f193001 to 165f3f1 Compare October 27, 2019 15:36

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Centril added 2 commits November 6, 2019 11:08

legacy_ctor_visibility -> error

c0056c0

legacy_directory_ownership -> error

79b35e9

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 8, 2019

Centril mentioned this pull request Nov 8, 2019

Rollup of 5 pull requests #66218

Closed

Centril mentioned this pull request Nov 8, 2019

Rollup of 5 pull requests #66225

Merged

bors merged commit 574d2b8 into rust-lang:master Nov 8, 2019

Centril deleted the compat-to-error-2 branch November 8, 2019 19:12

This was referenced Nov 8, 2019

Tracking issue for future-incompatibility lint ill_formed_attribute_input #57571

Open

Tracking issue for future-incompatibility lint patterns_in_fns_without_body #35203

Open

petrochenkov mentioned this pull request Dec 28, 2019

resolve: Minor cleanup of duplicate macro reexports #67677

Merged

This was referenced Jan 30, 2020

Dependence on syntex_syntax causes breakage as of nightly-2019-11-09. jmacdonald/amp#173

Closed

Unable to compile syntex_syntax using Rust 1.41 #68729

Closed

petrochenkov mentioned this pull request Mar 11, 2020

ICE on inconsistent resolution for a macro #69932

Closed

ehuss mentioned this pull request Apr 21, 2020

duplicate_macro_exports lint says it will be a hard error in 2018 but it is still a lint #61221

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Transition future compat lints to {ERROR, DENY} - Take 2 #65785

Transition future compat lints to {ERROR, DENY} - Take 2 #65785

Centril commented Oct 25, 2019 •

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rust-highfive commented Nov 8, 2019

Transition future compat lints to {ERROR, DENY} - Take 2 #65785

Transition future compat lints to {ERROR, DENY} - Take 2 #65785

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