Aug 30 00:30:16.350 INFO checking travis-0.1.1 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 00:30:16.350 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 00:30:16.350 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-0/master#ede55518431154bc761f7b2438cce9078c162700:/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=500" "-e" "CMD=cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 00:30:16.522 INFO blam! 27af7e4a1ad0d0602b5c7fc89e6e2af5ae22b6655103a0f785f5f12e6f261735
Aug 30 00:30:16.524 INFO running `"docker" "start" "-a" "27af7e4a1ad0d0602b5c7fc89e6e2af5ae22b6655103a0f785f5f12e6f261735"`
Aug 30 00:30:17.568 INFO kablam!    Compiling derive_builder_core v0.2.0
Aug 30 00:30:20.261 INFO kablam!    Compiling derive_builder v0.5.1
Aug 30 00:30:23.666 INFO kablam!     Checking travis v0.1.1 (file:///source)
Aug 30 00:30:27.761 INFO kablam! warning: variable does not need to be mutable
Aug 30 00:30:27.761 INFO kablam!    --> src/lib.rs:264:29
Aug 30 00:30:27.761 INFO kablam!     |
Aug 30 00:30:27.761 INFO kablam! 264 |                         let mut headers = req.headers_mut();
Aug 30 00:30:27.761 INFO kablam!     |                             ----^^^^^^^
Aug 30 00:30:27.761 INFO kablam!     |                             |
Aug 30 00:30:27.761 INFO kablam!     |                             help: remove this `mut`
Aug 30 00:30:27.761 INFO kablam!     |
Aug 30 00:30:27.761 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 30 00:30:27.761 INFO kablam! 
Aug 30 00:30:27.782 INFO kablam! warning: variable does not need to be mutable
Aug 30 00:30:27.783 INFO kablam!    --> src/lib.rs:264:29
Aug 30 00:30:27.783 INFO kablam!     |
Aug 30 00:30:27.783 INFO kablam! 264 |                         let mut headers = req.headers_mut();
Aug 30 00:30:27.783 INFO kablam!     |                             ----^^^^^^^
Aug 30 00:30:27.783 INFO kablam!     |                             |
Aug 30 00:30:27.783 INFO kablam!     |                             help: remove this `mut`
Aug 30 00:30:27.783 INFO kablam!     |
Aug 30 00:30:27.783 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 30 00:30:27.783 INFO kablam! 
Aug 30 00:30:27.790 INFO kablam! warning: variable does not need to be mutable
Aug 30 00:30:27.790 INFO kablam!    --> src/lib.rs:442:21
Aug 30 00:30:27.790 INFO kablam!     |
Aug 30 00:30:27.790 INFO kablam! 442 |                 let mut headers = req.headers_mut();
Aug 30 00:30:27.790 INFO kablam!     |                     ----^^^^^^^
Aug 30 00:30:27.790 INFO kablam!     |                     |
Aug 30 00:30:27.790 INFO kablam!     |                     help: remove this `mut`
Aug 30 00:30:27.790 INFO kablam! 
Aug 30 00:30:27.837 INFO kablam! warning: variable does not need to be mutable
Aug 30 00:30:27.837 INFO kablam!    --> src/lib.rs:442:21
Aug 30 00:30:27.837 INFO kablam!     |
Aug 30 00:30:27.837 INFO kablam! 442 |                 let mut headers = req.headers_mut();
Aug 30 00:30:27.837 INFO kablam!     |                     ----^^^^^^^
Aug 30 00:30:27.837 INFO kablam!     |                     |
Aug 30 00:30:27.837 INFO kablam!     |                     help: remove this `mut`
Aug 30 00:30:27.837 INFO kablam! 
Aug 30 00:30:30.466 INFO kablam! error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
Aug 30 00:30:30.466 INFO kablam!   --> examples/demo.rs:60:50
Aug 30 00:30:30.466 INFO kablam!    |
Aug 30 00:30:30.466 INFO kablam! 60 |             let builds = travis.builds(repo.slug.as_ref());
Aug 30 00:30:30.466 INFO kablam!    |                                                  ^^^^^^
Aug 30 00:30:30.466 INFO kablam! 
Aug 30 00:30:30.471 INFO kablam! error: aborting due to previous error
Aug 30 00:30:30.471 INFO kablam! 
Aug 30 00:30:30.472 INFO kablam! For more information about this error, try `rustc --explain E0283`.
Aug 30 00:30:30.493 INFO kablam! error: Could not compile `travis`.
Aug 30 00:30:30.493 INFO kablam! 
Aug 30 00:30:30.493 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 00:30:30.493 INFO kablam! su: No module specific data is present
Aug 30 00:30:30.899 INFO running `"docker" "rm" "-f" "27af7e4a1ad0d0602b5c7fc89e6e2af5ae22b6655103a0f785f5f12e6f261735"`
Aug 30 00:30:30.988 INFO blam! 27af7e4a1ad0d0602b5c7fc89e6e2af5ae22b6655103a0f785f5f12e6f261735