Sep 21 07:18:19.784 INFO checking mackerel_client-0.2.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 07:18:19.784 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 07:18:19.784 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-5/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 07:18:19.897 INFO blam! 72fd1c4ca9b65711fe1966e0d1cf4ec8515a5f67096e835921344c74b9ebc793
Sep 21 07:18:19.899 INFO running `"docker" "start" "-a" "72fd1c4ca9b65711fe1966e0d1cf4ec8515a5f67096e835921344c74b9ebc793"`
Sep 21 07:18:20.770 INFO kablam! usermod: no changes
Sep 21 07:18:21.017 INFO kablam!     Checking mackerel_client v0.2.0 (/source)
Sep 21 07:18:22.972 INFO kablam! warning: unused `#[macro_use]` import
Sep 21 07:18:22.972 INFO kablam!   --> src/lib.rs:28:1
Sep 21 07:18:22.972 INFO kablam!    |
Sep 21 07:18:22.972 INFO kablam! 28 | #[macro_use]
Sep 21 07:18:22.972 INFO kablam!    | ^^^^^^^^^^^^
Sep 21 07:18:22.972 INFO kablam!    |
Sep 21 07:18:22.972 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 21 07:18:22.972 INFO kablam! 
Sep 21 07:18:24.582 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.79s
Sep 21 07:18:24.592 INFO kablam! su: No module specific data is present
Sep 21 07:18:25.087 INFO running `"docker" "rm" "-f" "72fd1c4ca9b65711fe1966e0d1cf4ec8515a5f67096e835921344c74b9ebc793"`
Sep 21 07:18:25.157 INFO blam! 72fd1c4ca9b65711fe1966e0d1cf4ec8515a5f67096e835921344c74b9ebc793