Dec 11 20:09:38.190 INFO checking danielpclark/bench_ruby_ffi_example against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 20:09:38.190 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 20:09:38.664 INFO [stdout] c2071742bb1a25994d1c588bedb6f758838e9f3a15ed3b8cdcf23e52da95d38e
Dec 11 20:09:38.666 INFO running `"docker" "start" "-a" "c2071742bb1a25994d1c588bedb6f758838e9f3a15ed3b8cdcf23e52da95d38e"`
Dec 11 20:09:40.000 INFO [stderr] usermod: no changes
Dec 11 20:09:40.141 INFO [stderr]     Checking array_tool v0.4.1
Dec 11 20:09:40.141 INFO [stderr]     Checking ruby-sys v0.2.20
Dec 11 20:09:41.024 INFO [stderr]     Checking ruru v0.9.3
Dec 11 20:09:41.892 INFO [stderr]     Checking ffi_example v0.0.1 (/source)
Dec 11 20:09:42.668 INFO [stderr] warning: unused import: `self::array_tool::string::Squeeze`
Dec 11 20:09:42.668 INFO [stderr]   --> src/lib.rs:11:7
Dec 11 20:09:42.668 INFO [stderr]    |
Dec 11 20:09:42.668 INFO [stderr] 11 |   use self::array_tool::string::Squeeze;
Dec 11 20:09:42.668 INFO [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 20:09:42.668 INFO [stderr]    |
Dec 11 20:09:42.668 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 20:09:42.668 INFO [stderr] 
Dec 11 20:09:42.696 INFO [stderr] warning: unused import: `self::array_tool::string::Squeeze`
Dec 11 20:09:42.696 INFO [stderr]   --> src/lib.rs:11:7
Dec 11 20:09:42.696 INFO [stderr]    |
Dec 11 20:09:42.696 INFO [stderr] 11 |   use self::array_tool::string::Squeeze;
Dec 11 20:09:42.696 INFO [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 20:09:42.696 INFO [stderr]    |
Dec 11 20:09:42.696 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 20:09:42.696 INFO [stderr] 
Dec 11 20:09:42.816 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.76s
Dec 11 20:09:42.818 INFO [stderr] su: No module specific data is present
Dec 11 20:09:43.200 INFO running `"docker" "inspect" "c2071742bb1a25994d1c588bedb6f758838e9f3a15ed3b8cdcf23e52da95d38e"`
Dec 11 20:09:43.391 INFO running `"docker" "rm" "-f" "c2071742bb1a25994d1c588bedb6f758838e9f3a15ed3b8cdcf23e52da95d38e"`
Dec 11 20:09:43.520 INFO [stdout] c2071742bb1a25994d1c588bedb6f758838e9f3a15ed3b8cdcf23e52da95d38e