{"action":"created","issue":{"url":"https://api.github.com/repos/rust-lang/rust/issues/35687","repository_url":"https://api.github.com/repos/rust-lang/rust","labels_url":"https://api.github.com/repos/rust-lang/rust/issues/35687/labels{/name}","comments_url":"https://api.github.com/repos/rust-lang/rust/issues/35687/comments","events_url":"https://api.github.com/repos/rust-lang/rust/issues/35687/events","html_url":"https://github.com/rust-lang/rust/issues/35687","id":171230213,"number":35687,"title":"rustbuild: found crate `*` compiled by an incompatible version of rustc","user":{"login":"TimNN","id":1178249,"avatar_url":"https://avatars.githubusercontent.com/u/1178249?v=3","gravatar_id":"","url":"https://api.github.com/users/TimNN","html_url":"https://github.com/TimNN","followers_url":"https://api.github.com/users/TimNN/followers","following_url":"https://api.github.com/users/TimNN/following{/other_user}","gists_url":"https://api.github.com/users/TimNN/gists{/gist_id}","starred_url":"https://api.github.com/users/TimNN/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/TimNN/subscriptions","organizations_url":"https://api.github.com/users/TimNN/orgs","repos_url":"https://api.github.com/users/TimNN/repos","events_url":"https://api.github.com/users/TimNN/events{/privacy}","received_events_url":"https://api.github.com/users/TimNN/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/rust-lang/rust/labels/A-rustbuild","name":"A-rustbuild","color":"d7e102"}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":5,"created_at":"2016-08-15T18:26:16Z","updated_at":"2016-08-25T17:32:50Z","closed_at":"2016-08-22T16:54:46Z","body":"I regularly invoke rustbuild using `python ../../rust/src/bootstrap/bootstrap.py --step check --stage 2` and often get the following (or similar) error:\r\n\r\n```\r\nerror[E0514]: found crate `matches` compiled by an incompatible version of rustc\r\n  --> /home/logic/.cargo/registry/src/github.com-1ecc6299db9ec823/idna-0.1.0/src/lib.rs:35:14\r\n   |\r\n35 | #[macro_use] extern crate matches;\r\n   |              ^^^^^^^^^^^^^^^^^^^^^\r\n   |\r\n   = help: please recompile that crate using this compiler (rustc 1.12.0-dev (c0c9967c8 2016-08-15))\r\n   = note: crate `matches` path #1: /home/logic/build/rust-out/dev-build/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libmatches-5d5580ffd528031c.rlib compiled by \"rustc 1.12.0-dev (bcee2edc5 2016-08-14)\"\r\n\r\nerror: aborting due to previous error\r\n\r\nerror: Could not compile `idna`.\r\n\r\nTo learn more, run the command again with --verbose.\r\n\r\n\r\ncommand did not execute successfully: \"/home/logic/build/rust-out/dev-build/build/x86_64-unknown-linux-gnu/stage0/bin/cargo\" \"build\" \"-j\" \"8\" \"--target\" \"x86_64-unknown-linux-gnu\" \"--release\" \"--manifest-path\" \"/home/logic/build/rust/src/tools/linkchecker/Cargo.toml\"\r\nexpected success, got: exit code: 101\r\n```\r\n\r\nThis can easily be fixed by removing the offending `deps` directory but is nevertheless annoying, there's probably some cleanup not happening.\r\n\r\nThis sometimes manifest itself differently, I believe something like ``found multiple versions of crate `log` `` (I don't have the exact error at the moment, but I believe it's the same issue)."},"comment":{"url":"https://api.github.com/repos/rust-lang/rust/issues/comments/242474399","html_url":"https://github.com/rust-lang/rust/issues/35687#issuecomment-242474399","issue_url":"https://api.github.com/repos/rust-lang/rust/issues/35687","id":242474399,"user":{"login":"eddyb","id":77424,"avatar_url":"https://avatars.githubusercontent.com/u/77424?v=3","gravatar_id":"","url":"https://api.github.com/users/eddyb","html_url":"https://github.com/eddyb","followers_url":"https://api.github.com/users/eddyb/followers","following_url":"https://api.github.com/users/eddyb/following{/other_user}","gists_url":"https://api.github.com/users/eddyb/gists{/gist_id}","starred_url":"https://api.github.com/users/eddyb/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/eddyb/subscriptions","organizations_url":"https://api.github.com/users/eddyb/orgs","repos_url":"https://api.github.com/users/eddyb/repos","events_url":"https://api.github.com/users/eddyb/events{/privacy}","received_events_url":"https://api.github.com/users/eddyb/received_events","type":"User","site_admin":false},"created_at":"2016-08-25T17:32:49Z","updated_at":"2016-08-25T17:32:49Z","body":"@nagisa I think what you're seeing is the unfixed beta - maybe a backport is warranted?"}}
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