Sep 10 08:07:20.257 INFO checking tailrec-0.0.4 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 08:07:20.257 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 08:07:20.257 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 08:07:20.452 INFO blam! 39f3a5b6119cfb617d8e3dc9d71462319762d177e3ef7438defc4abb51fa20a1
Sep 10 08:07:20.454 INFO running `"docker" "start" "-a" "39f3a5b6119cfb617d8e3dc9d71462319762d177e3ef7438defc4abb51fa20a1"`
Sep 10 08:07:21.178 INFO kablam! usermod: no changes
Sep 10 08:07:21.206 INFO kablam!     Checking tailrec v0.0.4 (file:///source)
Sep 10 08:07:21.464 INFO kablam! warning: the trait `TailRec` cannot be made into an object
Sep 10 08:07:21.464 INFO kablam!   --> src/lib.rs:14:5
Sep 10 08:07:21.464 INFO kablam!    |
Sep 10 08:07:21.464 INFO kablam! 14 | /     fn rec_ref<'a>(&'a self, iterate: F) -> Output where
Sep 10 08:07:21.464 INFO kablam! 15 | |         F: for<'r> Fn(&'r Self) -> Result<Output, &'r Self>
Sep 10 08:07:21.464 INFO kablam! 16 | |     {
Sep 10 08:07:21.464 INFO kablam! 17 | |         let mut state = iterate(self);
Sep 10 08:07:21.464 INFO kablam! ...  |
Sep 10 08:07:21.464 INFO kablam! 21 | |         }}
Sep 10 08:07:21.464 INFO kablam! 22 | |     }
Sep 10 08:07:21.464 INFO kablam!    | |_____^
Sep 10 08:07:21.470 INFO kablam!    |
Sep 10 08:07:21.470 INFO kablam!    = note: #[warn(where_clauses_object_safety)] on by default
Sep 10 08:07:21.470 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 08:07:21.470 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.470 INFO kablam!    = note: method `rec_ref` references the `Self` type in where clauses
Sep 10 08:07:21.470 INFO kablam! 
Sep 10 08:07:21.470 INFO kablam! warning: the trait `TailRec` cannot be made into an object
Sep 10 08:07:21.470 INFO kablam!   --> src/lib.rs:36:5
Sep 10 08:07:21.470 INFO kablam!    |
Sep 10 08:07:21.470 INFO kablam! 36 | /     fn rec_ref_mut<'a>(&'a mut self, mut iterate: F) -> Output where
Sep 10 08:07:21.470 INFO kablam! 37 | |         F: for<'r> FnMut(&'r mut Self) -> Result<Output, &'r mut Self>
Sep 10 08:07:21.470 INFO kablam! 38 | |     {
Sep 10 08:07:21.470 INFO kablam! 39 | |         let mut state = iterate(self);
Sep 10 08:07:21.470 INFO kablam! ...  |
Sep 10 08:07:21.470 INFO kablam! 43 | |         }}
Sep 10 08:07:21.470 INFO kablam! 44 | |     }
Sep 10 08:07:21.470 INFO kablam!    | |_____^
Sep 10 08:07:21.470 INFO kablam!    |
Sep 10 08:07:21.470 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 08:07:21.470 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.470 INFO kablam!    = note: method `rec_ref_mut` references the `Self` type in where clauses
Sep 10 08:07:21.470 INFO kablam! 
Sep 10 08:07:21.550 INFO kablam! warning: the trait `TailRec` cannot be made into an object
Sep 10 08:07:21.550 INFO kablam!   --> src/lib.rs:14:5
Sep 10 08:07:21.550 INFO kablam!    |
Sep 10 08:07:21.550 INFO kablam! 14 | /     fn rec_ref<'a>(&'a self, iterate: F) -> Output where
Sep 10 08:07:21.550 INFO kablam! 15 | |         F: for<'r> Fn(&'r Self) -> Result<Output, &'r Self>
Sep 10 08:07:21.550 INFO kablam! 16 | |     {
Sep 10 08:07:21.550 INFO kablam! 17 | |         let mut state = iterate(self);
Sep 10 08:07:21.550 INFO kablam! ...  |
Sep 10 08:07:21.550 INFO kablam! 21 | |         }}
Sep 10 08:07:21.550 INFO kablam! 22 | |     }
Sep 10 08:07:21.550 INFO kablam!    | |_____^
Sep 10 08:07:21.550 INFO kablam!    |
Sep 10 08:07:21.550 INFO kablam!    = note: #[warn(where_clauses_object_safety)] on by default
Sep 10 08:07:21.550 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 08:07:21.550 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.550 INFO kablam!    = note: method `rec_ref` references the `Self` type in where clauses
Sep 10 08:07:21.550 INFO kablam! 
Sep 10 08:07:21.550 INFO kablam! warning: the trait `TailRec` cannot be made into an object
Sep 10 08:07:21.550 INFO kablam!   --> src/lib.rs:36:5
Sep 10 08:07:21.550 INFO kablam!    |
Sep 10 08:07:21.551 INFO kablam! 36 | /     fn rec_ref_mut<'a>(&'a mut self, mut iterate: F) -> Output where
Sep 10 08:07:21.551 INFO kablam! 37 | |         F: for<'r> FnMut(&'r mut Self) -> Result<Output, &'r mut Self>
Sep 10 08:07:21.551 INFO kablam! 38 | |     {
Sep 10 08:07:21.551 INFO kablam! 39 | |         let mut state = iterate(self);
Sep 10 08:07:21.551 INFO kablam! ...  |
Sep 10 08:07:21.551 INFO kablam! 43 | |         }}
Sep 10 08:07:21.551 INFO kablam! 44 | |     }
Sep 10 08:07:21.551 INFO kablam!    | |_____^
Sep 10 08:07:21.551 INFO kablam!    |
Sep 10 08:07:21.551 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 08:07:21.551 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.551 INFO kablam!    = note: method `rec_ref_mut` references the `Self` type in where clauses
Sep 10 08:07:21.551 INFO kablam! 
Sep 10 08:07:21.748 INFO kablam! warning: the trait `tailrec::TailRec` cannot be made into an object
Sep 10 08:07:21.748 INFO kablam!   --> /source/src/lib.rs:14:5
Sep 10 08:07:21.748 INFO kablam!    |
Sep 10 08:07:21.748 INFO kablam! 14 | /     fn rec_ref<'a>(&'a self, iterate: F) -> Output where
Sep 10 08:07:21.748 INFO kablam! 15 | |         F: for<'r> Fn(&'r Self) -> Result<Output, &'r Self>
Sep 10 08:07:21.748 INFO kablam! 16 | |     {
Sep 10 08:07:21.748 INFO kablam! 17 | |         let mut state = iterate(self);
Sep 10 08:07:21.748 INFO kablam! ...  |
Sep 10 08:07:21.748 INFO kablam! 21 | |         }}
Sep 10 08:07:21.748 INFO kablam! 22 | |     }
Sep 10 08:07:21.748 INFO kablam!    | |_____^
Sep 10 08:07:21.748 INFO kablam!    |
Sep 10 08:07:21.748 INFO kablam!    = note: #[warn(where_clauses_object_safety)] on by default
Sep 10 08:07:21.748 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 08:07:21.748 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.748 INFO kablam!    = note: method `rec_ref` references the `Self` type in where clauses
Sep 10 08:07:21.748 INFO kablam! 
Sep 10 08:07:21.748 INFO kablam! warning: the trait `tailrec::TailRec` cannot be made into an object
Sep 10 08:07:21.748 INFO kablam!   --> /source/src/lib.rs:36:5
Sep 10 08:07:21.748 INFO kablam!    |
Sep 10 08:07:21.748 INFO kablam! 36 | /     fn rec_ref_mut<'a>(&'a mut self, mut iterate: F) -> Output where
Sep 10 08:07:21.748 INFO kablam! 37 | |         F: for<'r> FnMut(&'r mut Self) -> Result<Output, &'r mut Self>
Sep 10 08:07:21.748 INFO kablam! 38 | |     {
Sep 10 08:07:21.748 INFO kablam! 39 | |         let mut state = iterate(self);
Sep 10 08:07:21.748 INFO kablam! ...  |
Sep 10 08:07:21.748 INFO kablam! 43 | |         }}
Sep 10 08:07:21.748 INFO kablam! 44 | |     }
Sep 10 08:07:21.748 INFO kablam!    | |_____^
Sep 10 08:07:21.748 INFO kablam!    |
Sep 10 08:07:21.748 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 08:07:21.758 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Sep 10 08:07:21.758 INFO kablam!    = note: method `rec_ref_mut` references the `Self` type in where clauses
Sep 10 08:07:21.758 INFO kablam! 
Sep 10 08:07:21.791 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Sep 10 08:07:21.798 INFO kablam! su: No module specific data is present
Sep 10 08:07:22.509 INFO running `"docker" "rm" "-f" "39f3a5b6119cfb617d8e3dc9d71462319762d177e3ef7438defc4abb51fa20a1"`
Sep 10 08:07:22.669 INFO blam! 39f3a5b6119cfb617d8e3dc9d71462319762d177e3ef7438defc4abb51fa20a1