Dec 04 13:05:56.139 INFO checking nooberfsh/heartbeat against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 13:05:56.139 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 13:05:56.567 INFO [stdout] 67dca599e440f3df078e0bb2388b35b268d9b956deba7280ad7704a8462a97e6
Dec 04 13:05:56.569 INFO running `"docker" "start" "-a" "67dca599e440f3df078e0bb2388b35b268d9b956deba7280ad7704a8462a97e6"`
Dec 04 13:05:57.217 INFO [stderr] usermod: no changes
Dec 04 13:05:57.292 INFO [stderr]     Checking test-tokio v0.1.0 (/source)
Dec 04 13:05:58.263 INFO [stderr] warning: unused import: `tokio_io::AsyncRead`
Dec 04 13:05:58.263 INFO [stderr]   --> src/main.rs:19:5
Dec 04 13:05:58.263 INFO [stderr]    |
Dec 04 13:05:58.263 INFO [stderr] 19 | use tokio_io::AsyncRead;
Dec 04 13:05:58.263 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:58.263 INFO [stderr]    |
Dec 04 13:05:58.263 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 13:05:58.263 INFO [stderr] 
Dec 04 13:05:58.327 INFO [stderr] warning: unused import: `tokio_io::AsyncRead`
Dec 04 13:05:58.327 INFO [stderr]   --> src/main.rs:19:5
Dec 04 13:05:58.327 INFO [stderr]    |
Dec 04 13:05:58.327 INFO [stderr] 19 | use tokio_io::AsyncRead;
Dec 04 13:05:58.327 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:58.327 INFO [stderr]    |
Dec 04 13:05:58.327 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 13:05:58.327 INFO [stderr] 
Dec 04 13:05:58.389 INFO [stderr] warning: method is never used: `conns_num`
Dec 04 13:05:58.390 INFO [stderr]    --> src/main.rs:103:5
Dec 04 13:05:58.390 INFO [stderr]     |
Dec 04 13:05:58.390 INFO [stderr] 103 |     fn conns_num(&self) -> usize {
Dec 04 13:05:58.390 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:58.390 INFO [stderr]     |
Dec 04 13:05:58.390 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 13:05:58.390 INFO [stderr] 
Dec 04 13:05:58.391 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 13:05:58.391 INFO [stderr]  --> src/main.rs:1:12
Dec 04 13:05:58.391 INFO [stderr]   |
Dec 04 13:05:58.391 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 04 13:05:58.391 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:58.392 INFO [stderr]   |
Dec 04 13:05:58.392 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 13:05:58.392 INFO [stderr] 
Dec 04 13:05:58.515 INFO [stderr] warning: method is never used: `conns_num`
Dec 04 13:05:58.515 INFO [stderr]    --> src/main.rs:103:5
Dec 04 13:05:58.515 INFO [stderr]     |
Dec 04 13:05:58.515 INFO [stderr] 103 |     fn conns_num(&self) -> usize {
Dec 04 13:05:58.515 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:58.515 INFO [stderr]     |
Dec 04 13:05:58.515 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 13:05:58.515 INFO [stderr] 
Dec 04 13:05:58.515 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 13:05:58.515 INFO [stderr]  --> src/main.rs:1:12
Dec 04 13:05:58.515 INFO [stderr]   |
Dec 04 13:05:58.515 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 04 13:05:58.515 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:05:58.515 INFO [stderr]   |
Dec 04 13:05:58.515 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 13:05:58.515 INFO [stderr] 
Dec 04 13:05:58.551 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Dec 04 13:05:58.555 INFO [stderr] su: No module specific data is present
Dec 04 13:05:59.265 INFO running `"docker" "inspect" "67dca599e440f3df078e0bb2388b35b268d9b956deba7280ad7704a8462a97e6"`
Dec 04 13:05:59.573 INFO running `"docker" "rm" "-f" "67dca599e440f3df078e0bb2388b35b268d9b956deba7280ad7704a8462a97e6"`
Dec 04 13:05:59.859 INFO [stdout] 67dca599e440f3df078e0bb2388b35b268d9b956deba7280ad7704a8462a97e6