Sep 05 20:27:11.222 INFO checking xxcalc-0.2.1 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 20:27:11.222 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 20:27:11.222 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-0/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 20:27:11.359 INFO blam! cd9ecf2dfb9acb9620646778a94f420a8e224f5272805ce37e644fab3d4ba0f2
Sep 05 20:27:11.360 INFO running `"docker" "start" "-a" "cd9ecf2dfb9acb9620646778a94f420a8e224f5272805ce37e644fab3d4ba0f2"`
Sep 05 20:27:12.081 INFO kablam! usermod: no changes
Sep 05 20:27:12.116 INFO kablam!     Checking xxcalc v0.2.1 (file:///source)
Sep 05 20:27:12.294 INFO kablam! warning: unused macro definition
Sep 05 20:27:12.294 INFO kablam!    --> src/tokenizer.rs:267:1
Sep 05 20:27:12.294 INFO kablam!     |
Sep 05 20:27:12.294 INFO kablam! 267 | / macro_rules! tokenize {
Sep 05 20:27:12.294 INFO kablam! 268 | |   ($x:expr) => (Tokenizer::default().process($x).to_owned())
Sep 05 20:27:12.294 INFO kablam! 269 | | }
Sep 05 20:27:12.294 INFO kablam!     | |_^
Sep 05 20:27:12.294 INFO kablam!     |
Sep 05 20:27:12.294 INFO kablam!     = note: #[warn(unused_macros)] on by default
Sep 05 20:27:12.294 INFO kablam! 
Sep 05 20:27:12.294 INFO kablam! warning: unused macro definition
Sep 05 20:27:12.294 INFO kablam!    --> src/tokenizer.rs:271:1
Sep 05 20:27:12.294 INFO kablam!     |
Sep 05 20:27:12.294 INFO kablam! 271 | / macro_rules! tokenize_ref {
Sep 05 20:27:12.294 INFO kablam! 272 | |   ($x:expr) => (Tokenizer::default().process($x))
Sep 05 20:27:12.294 INFO kablam! 273 | | }
Sep 05 20:27:12.294 INFO kablam!     | |_^
Sep 05 20:27:12.294 INFO kablam! 
Sep 05 20:27:12.383 INFO kablam! warning: unused macro definition
Sep 05 20:27:12.383 INFO kablam!    --> src/tokenizer.rs:267:1
Sep 05 20:27:12.383 INFO kablam!     |
Sep 05 20:27:12.383 INFO kablam! 267 | / macro_rules! tokenize {
Sep 05 20:27:12.383 INFO kablam! 268 | |   ($x:expr) => (Tokenizer::default().process($x).to_owned())
Sep 05 20:27:12.383 INFO kablam! 269 | | }
Sep 05 20:27:12.383 INFO kablam!     | |_^
Sep 05 20:27:12.383 INFO kablam!     |
Sep 05 20:27:12.383 INFO kablam!     = note: #[warn(unused_macros)] on by default
Sep 05 20:27:12.383 INFO kablam! 
Sep 05 20:27:12.593 INFO kablam! warning: unused arithmetic operation which must be used
Sep 05 20:27:12.593 INFO kablam!    --> src/polynomial.rs:416:5
Sep 05 20:27:12.593 INFO kablam!     |
Sep 05 20:27:12.593 INFO kablam! 416 |     self + &other;
Sep 05 20:27:12.593 INFO kablam!     |     ^^^^^^^^^^^^^
Sep 05 20:27:12.593 INFO kablam!     |
Sep 05 20:27:12.593 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 05 20:27:12.593 INFO kablam! 
Sep 05 20:27:12.593 INFO kablam! warning: unused arithmetic operation which must be used
Sep 05 20:27:12.593 INFO kablam!    --> src/polynomial.rs:500:5
Sep 05 20:27:12.594 INFO kablam!     |
Sep 05 20:27:12.594 INFO kablam! 500 |     self - &other;
Sep 05 20:27:12.594 INFO kablam!     |     ^^^^^^^^^^^^^
Sep 05 20:27:12.594 INFO kablam! 
Sep 05 20:27:12.594 INFO kablam! warning: unused arithmetic operation which must be used
Sep 05 20:27:12.594 INFO kablam!    --> src/polynomial.rs:596:5
Sep 05 20:27:12.594 INFO kablam!     |
Sep 05 20:27:12.594 INFO kablam! 596 |     self * &other;
Sep 05 20:27:12.594 INFO kablam!     |     ^^^^^^^^^^^^^
Sep 05 20:27:12.594 INFO kablam! 
Sep 05 20:27:12.594 INFO kablam! warning: unused return value of `std::ops::Mul::mul` which must be used
Sep 05 20:27:12.594 INFO kablam!    --> src/polynomial.rs:618:5
Sep 05 20:27:12.594 INFO kablam!     |
Sep 05 20:27:12.594 INFO kablam! 618 |     self.mul(other);
Sep 05 20:27:12.594 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Sep 05 20:27:12.594 INFO kablam! 
Sep 05 20:27:13.498 INFO kablam! warning: unused arithmetic operation which must be used
Sep 05 20:27:13.498 INFO kablam!    --> src/polynomial.rs:416:5
Sep 05 20:27:13.498 INFO kablam!     |
Sep 05 20:27:13.498 INFO kablam! 416 |     self + &other;
Sep 05 20:27:13.498 INFO kablam!     |     ^^^^^^^^^^^^^
Sep 05 20:27:13.498 INFO kablam!     |
Sep 05 20:27:13.498 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 05 20:27:13.498 INFO kablam! 
Sep 05 20:27:13.498 INFO kablam! warning: unused arithmetic operation which must be used
Sep 05 20:27:13.498 INFO kablam!    --> src/polynomial.rs:500:5
Sep 05 20:27:13.498 INFO kablam!     |
Sep 05 20:27:13.498 INFO kablam! 500 |     self - &other;
Sep 05 20:27:13.498 INFO kablam!     |     ^^^^^^^^^^^^^
Sep 05 20:27:13.498 INFO kablam! 
Sep 05 20:27:13.498 INFO kablam! warning: unused arithmetic operation which must be used
Sep 05 20:27:13.498 INFO kablam!    --> src/polynomial.rs:596:5
Sep 05 20:27:13.498 INFO kablam!     |
Sep 05 20:27:13.498 INFO kablam! 596 |     self * &other;
Sep 05 20:27:13.498 INFO kablam!     |     ^^^^^^^^^^^^^
Sep 05 20:27:13.498 INFO kablam! 
Sep 05 20:27:13.498 INFO kablam! warning: unused return value of `std::ops::Mul::mul` which must be used
Sep 05 20:27:13.498 INFO kablam!    --> src/polynomial.rs:618:5
Sep 05 20:27:13.498 INFO kablam!     |
Sep 05 20:27:13.498 INFO kablam! 618 |     self.mul(other);
Sep 05 20:27:13.498 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Sep 05 20:27:13.498 INFO kablam! 
Sep 05 20:27:13.544 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
Sep 05 20:27:13.550 INFO kablam! su: No module specific data is present
Sep 05 20:27:14.261 INFO running `"docker" "rm" "-f" "cd9ecf2dfb9acb9620646778a94f420a8e224f5272805ce37e644fab3d4ba0f2"`
Sep 05 20:27:14.343 INFO blam! cd9ecf2dfb9acb9620646778a94f420a8e224f5272805ce37e644fab3d4ba0f2