Sep 01 09:16:28.081 INFO checking bson-0.10.0 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Sep 01 09:16:28.081 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Sep 01 09:16:28.081 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-3/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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 +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 09:16:28.322 INFO blam! f5f7afc406092d9f2343c0e0b4f74ad27f8c418e0e2b9e2af343d3d5dae49d05
Sep 01 09:16:28.325 INFO running `"docker" "start" "-a" "f5f7afc406092d9f2343c0e0b4f74ad27f8c418e0e2b9e2af343d3d5dae49d05"`
Sep 01 09:16:29.300 INFO kablam!     Checking bson v0.10.0 (file:///source)
Sep 01 09:16:36.936 INFO kablam! warning: unused variable: `tmp`
Sep 01 09:16:36.936 INFO kablam!  --> examples/test.rs:7:9
Sep 01 09:16:36.936 INFO kablam!   |
Sep 01 09:16:36.936 INFO kablam! 7 |     let tmp = bson::to_bson(&map).unwrap(); 
Sep 01 09:16:36.936 INFO kablam!   |         ^^^ help: consider using `_tmp` instead
Sep 01 09:16:36.936 INFO kablam!   |
Sep 01 09:16:36.936 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 01 09:16:36.936 INFO kablam! 
Sep 01 09:16:38.850 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.68s
Sep 01 09:16:38.866 INFO kablam! su: No module specific data is present
Sep 01 09:16:39.233 INFO running `"docker" "rm" "-f" "f5f7afc406092d9f2343c0e0b4f74ad27f8c418e0e2b9e2af343d3d5dae49d05"`
Sep 01 09:16:39.323 INFO blam! f5f7afc406092d9f2343c0e0b4f74ad27f8c418e0e2b9e2af343d3d5dae49d05