Dec 12 07:26:06.708 INFO checking slackrbot-0.1.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 07:26:06.708 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 12 07:26:07.124 INFO [stdout] c6a94f23479498c995eefc5d25ecee5f994e402ccc618f92d5927a17cf8c987f
Dec 12 07:26:07.126 INFO running `"docker" "start" "-a" "c6a94f23479498c995eefc5d25ecee5f994e402ccc618f92d5927a17cf8c987f"`
Dec 12 07:26:08.305 INFO [stderr] usermod: no changes
Dec 12 07:26:08.356 INFO [stderr]     Checking slackrbot v0.1.0 (/source)
Dec 12 07:26:08.840 INFO [stderr] warning: unused import: `rustc_serialize::json`
Dec 12 07:26:08.840 INFO [stderr]  --> src/lib.rs:2:5
Dec 12 07:26:08.840 INFO [stderr]   |
Dec 12 07:26:08.840 INFO [stderr] 2 | use rustc_serialize::json;
Dec 12 07:26:08.840 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 12 07:26:08.840 INFO [stderr]   |
Dec 12 07:26:08.840 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 07:26:08.840 INFO [stderr] 
Dec 12 07:26:09.092 INFO [stderr] warning: unused import: `rustc_serialize::json`
Dec 12 07:26:09.092 INFO [stderr]  --> src/lib.rs:2:5
Dec 12 07:26:09.092 INFO [stderr]   |
Dec 12 07:26:09.092 INFO [stderr] 2 | use rustc_serialize::json;
Dec 12 07:26:09.092 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 12 07:26:09.092 INFO [stderr]   |
Dec 12 07:26:09.092 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 07:26:09.092 INFO [stderr] 
Dec 12 07:26:09.128 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 12 07:26:09.128 INFO [stderr] su: No module specific data is present
Dec 12 07:26:09.871 INFO running `"docker" "inspect" "c6a94f23479498c995eefc5d25ecee5f994e402ccc618f92d5927a17cf8c987f"`
Dec 12 07:26:10.170 INFO running `"docker" "rm" "-f" "c6a94f23479498c995eefc5d25ecee5f994e402ccc618f92d5927a17cf8c987f"`
Dec 12 07:26:10.476 INFO [stdout] c6a94f23479498c995eefc5d25ecee5f994e402ccc618f92d5927a17cf8c987f