Sep 10 08:07:20.226 INFO checking tailrec-0.0.4 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 08:07:20.226 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 08:07:20.226 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/try#3a2610c2a16575649896925631bf8cec4f4b1961:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 08:07:20.414 INFO blam! 8539bd2d408e005728497aa3c122211b6a7e3c7b0c044b430eafa7bfc6d0bb59
Sep 10 08:07:20.416 INFO running `"docker" "start" "-a" "8539bd2d408e005728497aa3c122211b6a7e3c7b0c044b430eafa7bfc6d0bb59"`
Sep 10 08:07:21.066 INFO kablam! usermod: no changes
Sep 10 08:07:21.106 INFO kablam!     Checking tailrec v0.0.4 (file:///source)
Sep 10 08:07:21.302 INFO kablam! warning: the trait `TailRec` cannot be made into an object
Sep 10 08:07:21.302 INFO kablam!   --> src/lib.rs:14:5
Sep 10 08:07:21.302 INFO kablam!    |
Sep 10 08:07:21.302 INFO kablam! 14 | /     fn rec_ref<'a>(&'a self, iterate: F) -> Output where
Sep 10 08:07:21.302 INFO kablam! 15 | |         F: for<'r> Fn(&'r Self) -> Result<Output, &'r Self>
Sep 10 08:07:21.302 INFO kablam! 16 | |     {
Sep 10 08:07:21.302 INFO kablam! 17 | |         let mut state = iterate(self);
Sep 10 08:07:21.302 INFO kablam! ...  |
Sep 10 08:07:21.302 INFO kablam! 21 | |         }}
Sep 10 08:07:21.302 INFO kablam! 22 | |     }
Sep 10 08:07:21.302 INFO kablam!    | |_____^
Sep 10 08:07:21.302 INFO kablam!    |
Sep 10 08:07:21.302 INFO kablam!    = note: #[warn(where_clauses_object_safety)] on by default
Sep 10 08:07:21.302 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Sep 10 08:07:21.302 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.302 INFO kablam!    = note: method `rec_ref` references the `Self` type in where clauses
Sep 10 08:07:21.302 INFO kablam! 
Sep 10 08:07:21.302 INFO kablam! warning: the trait `TailRec` cannot be made into an object
Sep 10 08:07:21.302 INFO kablam!   --> src/lib.rs:36:5
Sep 10 08:07:21.302 INFO kablam!    |
Sep 10 08:07:21.302 INFO kablam! 36 | /     fn rec_ref_mut<'a>(&'a mut self, mut iterate: F) -> Output where
Sep 10 08:07:21.302 INFO kablam! 37 | |         F: for<'r> FnMut(&'r mut Self) -> Result<Output, &'r mut Self>
Sep 10 08:07:21.302 INFO kablam! 38 | |     {
Sep 10 08:07:21.302 INFO kablam! 39 | |         let mut state = iterate(self);
Sep 10 08:07:21.302 INFO kablam! ...  |
Sep 10 08:07:21.302 INFO kablam! 43 | |         }}
Sep 10 08:07:21.302 INFO kablam! 44 | |     }
Sep 10 08:07:21.302 INFO kablam!    | |_____^
Sep 10 08:07:21.302 INFO kablam!    |
Sep 10 08:07:21.302 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Sep 10 08:07:21.302 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.302 INFO kablam!    = note: method `rec_ref_mut` references the `Self` type in where clauses
Sep 10 08:07:21.302 INFO kablam! 
Sep 10 08:07:21.324 INFO kablam! warning: the trait `TailRec` cannot be made into an object
Sep 10 08:07:21.324 INFO kablam!   --> src/lib.rs:14:5
Sep 10 08:07:21.324 INFO kablam!    |
Sep 10 08:07:21.324 INFO kablam! 14 | /     fn rec_ref<'a>(&'a self, iterate: F) -> Output where
Sep 10 08:07:21.324 INFO kablam! 15 | |         F: for<'r> Fn(&'r Self) -> Result<Output, &'r Self>
Sep 10 08:07:21.324 INFO kablam! 16 | |     {
Sep 10 08:07:21.324 INFO kablam! 17 | |         let mut state = iterate(self);
Sep 10 08:07:21.324 INFO kablam! ...  |
Sep 10 08:07:21.324 INFO kablam! 21 | |         }}
Sep 10 08:07:21.324 INFO kablam! 22 | |     }
Sep 10 08:07:21.324 INFO kablam!    | |_____^
Sep 10 08:07:21.324 INFO kablam!    |
Sep 10 08:07:21.324 INFO kablam!    = note: #[warn(where_clauses_object_safety)] on by default
Sep 10 08:07:21.324 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Sep 10 08:07:21.324 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.324 INFO kablam!    = note: method `rec_ref` references the `Self` type in where clauses
Sep 10 08:07:21.324 INFO kablam! 
Sep 10 08:07:21.324 INFO kablam! warning: the trait `TailRec` cannot be made into an object
Sep 10 08:07:21.324 INFO kablam!   --> src/lib.rs:36:5
Sep 10 08:07:21.324 INFO kablam!    |
Sep 10 08:07:21.324 INFO kablam! 36 | /     fn rec_ref_mut<'a>(&'a mut self, mut iterate: F) -> Output where
Sep 10 08:07:21.324 INFO kablam! 37 | |         F: for<'r> FnMut(&'r mut Self) -> Result<Output, &'r mut Self>
Sep 10 08:07:21.324 INFO kablam! 38 | |     {
Sep 10 08:07:21.324 INFO kablam! 39 | |         let mut state = iterate(self);
Sep 10 08:07:21.324 INFO kablam! ...  |
Sep 10 08:07:21.324 INFO kablam! 43 | |         }}
Sep 10 08:07:21.324 INFO kablam! 44 | |     }
Sep 10 08:07:21.324 INFO kablam!    | |_____^
Sep 10 08:07:21.324 INFO kablam!    |
Sep 10 08:07:21.330 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Sep 10 08:07:21.330 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.330 INFO kablam!    = note: method `rec_ref_mut` references the `Self` type in where clauses
Sep 10 08:07:21.330 INFO kablam! 
Sep 10 08:07:21.565 INFO kablam! warning: the trait `tailrec::TailRec` cannot be made into an object
Sep 10 08:07:21.565 INFO kablam!   --> /source/src/lib.rs:14:5
Sep 10 08:07:21.565 INFO kablam!    |
Sep 10 08:07:21.565 INFO kablam! 14 | /     fn rec_ref<'a>(&'a self, iterate: F) -> Output where
Sep 10 08:07:21.565 INFO kablam! 15 | |         F: for<'r> Fn(&'r Self) -> Result<Output, &'r Self>
Sep 10 08:07:21.565 INFO kablam! 16 | |     {
Sep 10 08:07:21.565 INFO kablam! 17 | |         let mut state = iterate(self);
Sep 10 08:07:21.565 INFO kablam! ...  |
Sep 10 08:07:21.565 INFO kablam! 21 | |         }}
Sep 10 08:07:21.565 INFO kablam! 22 | |     }
Sep 10 08:07:21.565 INFO kablam!    | |_____^
Sep 10 08:07:21.566 INFO kablam!    |
Sep 10 08:07:21.566 INFO kablam!    = note: #[warn(where_clauses_object_safety)] on by default
Sep 10 08:07:21.566 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Sep 10 08:07:21.566 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.566 INFO kablam!    = note: method `rec_ref` references the `Self` type in where clauses
Sep 10 08:07:21.566 INFO kablam! 
Sep 10 08:07:21.566 INFO kablam! warning: the trait `tailrec::TailRec` cannot be made into an object
Sep 10 08:07:21.566 INFO kablam!   --> /source/src/lib.rs:36:5
Sep 10 08:07:21.566 INFO kablam!    |
Sep 10 08:07:21.566 INFO kablam! 36 | /     fn rec_ref_mut<'a>(&'a mut self, mut iterate: F) -> Output where
Sep 10 08:07:21.566 INFO kablam! 37 | |         F: for<'r> FnMut(&'r mut Self) -> Result<Output, &'r mut Self>
Sep 10 08:07:21.566 INFO kablam! 38 | |     {
Sep 10 08:07:21.566 INFO kablam! 39 | |         let mut state = iterate(self);
Sep 10 08:07:21.566 INFO kablam! ...  |
Sep 10 08:07:21.566 INFO kablam! 43 | |         }}
Sep 10 08:07:21.566 INFO kablam! 44 | |     }
Sep 10 08:07:21.566 INFO kablam!    | |_____^
Sep 10 08:07:21.566 INFO kablam!    |
Sep 10 08:07:21.566 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Sep 10 08:07:21.566 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.566 INFO kablam!    = note: method `rec_ref_mut` references the `Self` type in where clauses
Sep 10 08:07:21.566 INFO kablam! 
Sep 10 08:07:21.631 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
Sep 10 08:07:21.634 INFO kablam! su: No module specific data is present
Sep 10 08:07:22.364 INFO running `"docker" "rm" "-f" "8539bd2d408e005728497aa3c122211b6a7e3c7b0c044b430eafa7bfc6d0bb59"`
Sep 10 08:07:22.538 INFO blam! 8539bd2d408e005728497aa3c122211b6a7e3c7b0c044b430eafa7bfc6d0bb59