Sep 01 23:20:21.780 INFO checking daemon-engine-0.1.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 23:20:21.780 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 23:20:21.780 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-3/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 23:20:21.934 INFO blam! 120a064bf1fe042b3d9f5e48aa527228f2dacea79a1c7aeafd9e3b08f0f6f10c
Sep 01 23:20:21.936 INFO running `"docker" "start" "-a" "120a064bf1fe042b3d9f5e48aa527228f2dacea79a1c7aeafd9e3b08f0f6f10c"`
Sep 01 23:20:23.145 INFO kablam!     Checking tokio-serde-json-mirror v0.1.0
Sep 01 23:20:23.930 INFO kablam!     Checking daemon-engine v0.1.0 (file:///source)
Sep 01 23:20:27.539 INFO kablam! warning: unused import: `Instant`
Sep 01 23:20:27.539 INFO kablam!   --> src/lib.rs:51:31
Sep 01 23:20:27.539 INFO kablam!    |
Sep 01 23:20:27.539 INFO kablam! 51 |     use std::time::{Duration, Instant};
Sep 01 23:20:27.539 INFO kablam!    |                               ^^^^^^^
Sep 01 23:20:27.539 INFO kablam!    |
Sep 01 23:20:27.540 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 01 23:20:27.540 INFO kablam! 
Sep 01 23:20:35.506 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 12.54s
Sep 01 23:20:35.523 INFO kablam! su: No module specific data is present
Sep 01 23:20:36.031 INFO running `"docker" "rm" "-f" "120a064bf1fe042b3d9f5e48aa527228f2dacea79a1c7aeafd9e3b08f0f6f10c"`
Sep 01 23:20:36.151 INFO blam! 120a064bf1fe042b3d9f5e48aa527228f2dacea79a1c7aeafd9e3b08f0f6f10c