Sep 05 01:34:16.912 INFO checking bson-0.13.0 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 05 01:34:16.912 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 05 01:34:16.912 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-1/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 01:34:17.071 INFO blam! 0594737e592a69292bd0ef59c1b9952dfd4087be2b7de2a9395a84e216f67bf8
Sep 05 01:34:17.073 INFO running `"docker" "start" "-a" "0594737e592a69292bd0ef59c1b9952dfd4087be2b7de2a9395a84e216f67bf8"`
Sep 05 01:34:17.842 INFO kablam!     Checking bson v0.13.0 (file:///source)
Sep 05 01:34:23.932 INFO kablam! warning: unused variable: `tmp`
Sep 05 01:34:23.932 INFO kablam!  --> examples/test.rs:7:9
Sep 05 01:34:23.932 INFO kablam!   |
Sep 05 01:34:23.932 INFO kablam! 7 |     let tmp = bson::to_bson(&map).unwrap();
Sep 05 01:34:23.932 INFO kablam!   |         ^^^ help: consider using `_tmp` instead
Sep 05 01:34:23.932 INFO kablam!   |
Sep 05 01:34:23.932 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 05 01:34:23.932 INFO kablam! 
Sep 05 01:34:27.003 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.27s
Sep 05 01:34:27.022 INFO kablam! su: No module specific data is present
Sep 05 01:34:27.605 INFO running `"docker" "rm" "-f" "0594737e592a69292bd0ef59c1b9952dfd4087be2b7de2a9395a84e216f67bf8"`
Sep 05 01:34:27.814 INFO blam! 0594737e592a69292bd0ef59c1b9952dfd4087be2b7de2a9395a84e216f67bf8