Sep 10 05:38:16.729 INFO checking BurntSushi/cargo-benchcmp against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 05:38:16.729 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 05:38:16.730 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/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 05:38:16.948 INFO blam! 525213e4afe8ce2e1334694c3b951e3671308c0dfeff565bf75e7e47befc628e
Sep 10 05:38:16.950 INFO running `"docker" "start" "-a" "525213e4afe8ce2e1334694c3b951e3671308c0dfeff565bf75e7e47befc628e"`
Sep 10 05:38:17.978 INFO kablam! usermod: no changes
Sep 10 05:38:18.210 INFO kablam!    Compiling proc-macro2 v0.4.19
Sep 10 05:38:18.210 INFO kablam!    Compiling serde v1.0.78
Sep 10 05:38:18.218 INFO kablam!     Checking rand_core v0.2.1
Sep 10 05:38:18.232 INFO kablam!     Checking encode_unicode v0.3.2
Sep 10 05:38:18.263 INFO kablam!     Checking second_law v0.3.1
Sep 10 05:38:18.274 INFO kablam!     Checking env_logger v0.5.13
Sep 10 05:38:19.573 INFO kablam! error[E0282]: type annotations needed
Sep 10 05:38:19.573 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/second_law-0.3.1/src/atpath.rs:66:52
Sep 10 05:38:19.573 INFO kablam!    |
Sep 10 05:38:19.573 INFO kablam! 66 |                 unprefixed.push(component.as_ref().to_str().unwrap());
Sep 10 05:38:19.573 INFO kablam!    |                                                    ^^^^^^ cannot infer type for `T`
Sep 10 05:38:19.622 INFO kablam!    |
Sep 10 05:38:19.622 INFO kablam!    = note: type must be known at this point
Sep 10 05:38:19.622 INFO kablam! 
Sep 10 05:38:20.797 INFO kablam! error: aborting due to previous error
Sep 10 05:38:20.797 INFO kablam! 
Sep 10 05:38:20.798 INFO kablam! For more information about this error, try `rustc --explain E0282`.
Sep 10 05:38:20.818 INFO kablam!     Checking rand v0.5.5
Sep 10 05:38:20.829 INFO kablam! error: Could not compile `second_law`.
Sep 10 05:38:20.830 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 05:38:24.650 INFO kablam! error: build failed
Sep 10 05:38:24.658 INFO kablam! su: No module specific data is present
Sep 10 05:38:25.445 INFO running `"docker" "rm" "-f" "525213e4afe8ce2e1334694c3b951e3671308c0dfeff565bf75e7e47befc628e"`
Sep 10 05:38:25.559 INFO blam! 525213e4afe8ce2e1334694c3b951e3671308c0dfeff565bf75e7e47befc628e