Nov 01 20:05:27.008 INFO checking mackerel_client-0.2.0 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 20:05:27.009 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +d7816399d50d407bbce1efe9dbadf8faaaf568fc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 01 20:05:27.524 INFO blam! 0f2896c52999a7995f41e2c0b330f5c52c0511551f8df3d23add144eb2c4cd6c
Nov 01 20:05:27.526 INFO running `"docker" "start" "-a" "0f2896c52999a7995f41e2c0b330f5c52c0511551f8df3d23add144eb2c4cd6c"`
Nov 01 20:05:29.167 INFO kablam! usermod: no changes
Nov 01 20:05:29.544 INFO kablam!     Checking mackerel_client v0.2.0 (/source)
Nov 01 20:05:37.648 INFO kablam! warning: unused `#[macro_use]` import
Nov 01 20:05:37.649 INFO kablam!   --> src/lib.rs:28:1
Nov 01 20:05:37.649 INFO kablam!    |
Nov 01 20:05:37.650 INFO kablam! 28 | #[macro_use]
Nov 01 20:05:37.650 INFO kablam!    | ^^^^^^^^^^^^
Nov 01 20:05:37.651 INFO kablam!    |
Nov 01 20:05:37.652 INFO kablam!    = note: #[warn(unused_imports)] on by default
Nov 01 20:05:37.652 INFO kablam! 
Nov 01 20:05:40.107 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.90s
Nov 01 20:05:40.124 INFO kablam! su: No module specific data is present
Nov 01 20:05:40.536 INFO running `"docker" "rm" "-f" "0f2896c52999a7995f41e2c0b330f5c52c0511551f8df3d23add144eb2c4cd6c"`
Nov 01 20:05:40.612 INFO blam! 0f2896c52999a7995f41e2c0b330f5c52c0511551f8df3d23add144eb2c4cd6c