Rust 2015 regression notes

r.md

tracking sheet

https://docs.google.com/spreadsheets/d/1t3Wb77_hNsfnD2ZsCRiBaMYCw3qBQoVhUyP9hPNiczg/edit#gid=0

crater reports

• https://internals.rust-lang.org/t/regression-report-beta-2015-04-03-vs-nightly-2015-04-10/1860
• https://internals.rust-lang.org/t/regression-report-beta-2015-04-03-vs-beta-2015-04-17/1931
• https://internals.rust-lang.org/t/regression-report-beta-2015-04-03-vs-nightly-2015-04-24/1967
• https://internals.rust-lang.org/t/regression-report-beta-2015-05-01-vs-nightly-2015-05-03/1990
• https://internals.rust-lang.org/t/regression-report-stable-2015-05-15-vs-nightly-2015-05-28/2157
• https://internals.rust-lang.org/t/regression-report-stable-2015-05-15-vs-nightly-2015-06-12/2240
• https://internals.rust-lang.org/t/new-crater-reports-1-1-stable-vs-beta-2015-07-10-and-nightly-2015-07-10/2358
• https://internals.rust-lang.org/t/regression-analysis-for-1-2-beta-and-1-3-nightly/2395
• https://internals.rust-lang.org/t/regression-report-stable-vs-1-2-0-beta-4/2456
• https://internals.rust-lang.org/t/regression-reports-for-stable-2015-08-06-beta-2015-08-11-nightly-2015-08-12/2508
• https://internals.rust-lang.org/t/regression-report-stable-2015-08-06-vs-nightly-2015-08-27/2575
• https://internals.rust-lang.org/t/regression-report-stable-2015-08-06-vs-nightly-2015-09-04/2618
• https://internals.rust-lang.org/t/regression-report-stable-2015-08-06-vs-nightly-2015-09-08/2622
• https://internals.rust-lang.org/t/regression-reports-stable-2015-09-17-vs-beta-2015-10-02-nightly-10-06/2737
• https://internals.rust-lang.org/t/regression-report-stable-2015-10-29-vs-beta-2015-11-05-vs-nightly-2015-11-19/2922

other reports

• https://internals.rust-lang.org/t/rfc-1214-regression-report-where-to-go-from-here/2788
• https://users.rust-lang.org/t/drop-check-regression-overflow-while-adding-drop-check-rules-for-struct/3617
• https://internals.rust-lang.org/t/nightly-regression-for-rustlex-codegen-crate/2396

regression bugs

• https://github.com/rust-lang/rust/issues?q=is%3Aissue+label%3Aregression-from-stable-to-nightly
• https://github.com/rust-lang/rust/issues?q=is%3Aissue+label%3Aregression-from-stable-to-beta
• https://github.com/rust-lang/rust/issues?q=is%3Aissue+label%3Aregression-from-stable-to-stable

API evolution regressions

libcpocalypse

• https://www.reddit.com/r/rust/comments/3s43n4/discussion_lessons_learned_following_the_recent/?ref=search_posts

read_exact

• rust-lang/rust#27588
• https://internals.rust-lang.org/t/breaking-changes-by-adding-default-method-e-g-read-exact/2586

AsRef

• rust-lang/rust#28811

Extend<&T>

• https://internals.rust-lang.org/t/new-crater-reports-1-1-stable-vs-beta-2015-07-10-and-nightly-2015-07-10/2358/27

Crater 1.0 -> 1.5 run

5047 of 5243 crates that work on 1.0 continue to compile on 1.5. That's 96.3%.

• https://gist.github.com/brson/0b25d17fd70a418c973b