Dec 11 14:01:17.765 INFO checking matklad/select-2018 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 14:01:17.765 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 14:01:18.340 INFO [stdout] 89354df09c11e3aaeccb8560daaba74a8ac4af8b8ff369811c0f2bcede69670e
Dec 11 14:01:18.342 INFO running `"docker" "start" "-a" "89354df09c11e3aaeccb8560daaba74a8ac4af8b8ff369811c0f2bcede69670e"`
Dec 11 14:01:20.105 INFO [stderr] usermod: no changes
Dec 11 14:01:20.240 INFO [stderr]     Checking crossbeam-epoch v0.5.0
Dec 11 14:01:21.056 INFO [stderr]     Checking crossbeam-channel v0.2.2
Dec 11 14:01:22.358 INFO [stderr]     Checking macro_select v0.1.0 (/source)
Dec 11 14:01:23.700 INFO [stderr] warning: struct is never constructed: `ConcurrentJob`
Dec 11 14:01:23.701 INFO [stderr]  --> src/concurrency.rs:4:1
Dec 11 14:01:23.701 INFO [stderr]   |
Dec 11 14:01:23.702 INFO [stderr] 4 | pub struct ConcurrentJob {
Dec 11 14:01:23.702 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 14:01:23.702 INFO [stderr]   |
Dec 11 14:01:23.703 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 14:01:23.703 INFO [stderr] 
Dec 11 14:01:23.703 INFO [stderr] warning: function is never used: `wait_for_all`
Dec 11 14:01:23.704 INFO [stderr]  --> src/concurrency.rs:8:1
Dec 11 14:01:23.704 INFO [stderr]   |
Dec 11 14:01:23.704 INFO [stderr] 8 | pub fn wait_for_all(mut jobs: Vec<ConcurrentJob>,) {
Dec 11 14:01:23.705 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 14:01:23.705 INFO [stderr] 
Dec 11 14:01:23.886 INFO [stderr] warning: struct is never constructed: `ConcurrentJob`
Dec 11 14:01:23.886 INFO [stderr]  --> src/concurrency.rs:4:1
Dec 11 14:01:23.886 INFO [stderr]   |
Dec 11 14:01:23.886 INFO [stderr] 4 | pub struct ConcurrentJob {
Dec 11 14:01:23.886 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 14:01:23.886 INFO [stderr]   |
Dec 11 14:01:23.886 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 14:01:23.886 INFO [stderr] 
Dec 11 14:01:23.886 INFO [stderr] warning: function is never used: `wait_for_all`
Dec 11 14:01:23.886 INFO [stderr]  --> src/concurrency.rs:8:1
Dec 11 14:01:23.886 INFO [stderr]   |
Dec 11 14:01:23.886 INFO [stderr] 8 | pub fn wait_for_all(mut jobs: Vec<ConcurrentJob>,) {
Dec 11 14:01:23.886 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 14:01:23.886 INFO [stderr] 
Dec 11 14:01:23.928 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.79s
Dec 11 14:01:23.932 INFO [stderr] su: No module specific data is present
Dec 11 14:01:25.060 INFO running `"docker" "inspect" "89354df09c11e3aaeccb8560daaba74a8ac4af8b8ff369811c0f2bcede69670e"`
Dec 11 14:01:25.392 INFO running `"docker" "rm" "-f" "89354df09c11e3aaeccb8560daaba74a8ac4af8b8ff369811c0f2bcede69670e"`
Dec 11 14:01:25.753 INFO [stdout] 89354df09c11e3aaeccb8560daaba74a8ac4af8b8ff369811c0f2bcede69670e