Dec 12 09:02:26.715 INFO checking rio-0.2.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 09:02:26.715 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 09:02:27.066 INFO [stdout] 9f66d88215e924320aa298d4b1b32538392f681adc8bac8cc1caf6efa8e04bfb
Dec 12 09:02:27.070 INFO running `"docker" "start" "-a" "9f66d88215e924320aa298d4b1b32538392f681adc8bac8cc1caf6efa8e04bfb"`
Dec 12 09:02:28.478 INFO [stderr] usermod: no changes
Dec 12 09:02:28.584 INFO [stderr]     Checking rio v0.2.0 (/source)
Dec 12 09:02:29.347 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 09:02:29.347 INFO [stderr]  --> src/lib.rs:1:1
Dec 12 09:02:29.347 INFO [stderr]   |
Dec 12 09:02:29.347 INFO [stderr] 1 | #[macro_use]
Dec 12 09:02:29.347 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 09:02:29.347 INFO [stderr]   |
Dec 12 09:02:29.347 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 09:02:29.347 INFO [stderr] 
Dec 12 09:02:29.775 INFO [stderr] warning: unused imports: `ThreadId`, `current`
Dec 12 09:02:29.775 INFO [stderr]  --> src/thread/mod.rs:2:31
Dec 12 09:02:29.775 INFO [stderr]   |
Dec 12 09:02:29.775 INFO [stderr] 2 | use std::thread::{JoinHandle, ThreadId, current};
Dec 12 09:02:29.775 INFO [stderr]   |                               ^^^^^^^^  ^^^^^^^
Dec 12 09:02:29.775 INFO [stderr]   |
Dec 12 09:02:29.775 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 09:02:29.775 INFO [stderr] 
Dec 12 09:02:29.775 INFO [stderr] warning: unused imports: `LockResult as StdLockResult`, `TryLockResult as StdTryLockResult`
Dec 12 09:02:29.776 INFO [stderr]  --> src/sync/mod.rs:2:17
Dec 12 09:02:29.776 INFO [stderr]   |
Dec 12 09:02:29.776 INFO [stderr] 2 | use std::sync::{LockResult as StdLockResult, Mutex as StdMutex,
Dec 12 09:02:29.776 INFO [stderr]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 09:02:29.776 INFO [stderr] ...
Dec 12 09:02:29.776 INFO [stderr] 6 |                 TryLockResult as StdTryLockResult};
Dec 12 09:02:29.776 INFO [stderr]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 09:02:29.776 INFO [stderr] 
Dec 12 09:02:29.776 INFO [stderr] warning: unused import: `std::sync::atomic::AtomicUsize as RAtomicUsize`
Dec 12 09:02:29.776 INFO [stderr]  --> src/sync/mod.rs:7:5
Dec 12 09:02:29.776 INFO [stderr]   |
Dec 12 09:02:29.776 INFO [stderr] 7 | use std::sync::atomic::AtomicUsize as RAtomicUsize;
Dec 12 09:02:29.776 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 09:02:29.776 INFO [stderr] 
Dec 12 09:02:29.776 INFO [stderr] warning: unused imports: `Rng`, `XorShiftRng`
Dec 12 09:02:29.776 INFO [stderr]  --> src/sched.rs:7:27
Dec 12 09:02:29.776 INFO [stderr]   |
Dec 12 09:02:29.776 INFO [stderr] 7 | use ayn_rand_is_garbage::{Rng, XorShiftRng};
Dec 12 09:02:29.776 INFO [stderr]   |                           ^^^  ^^^^^^^^^^^
Dec 12 09:02:29.776 INFO [stderr] 
Dec 12 09:02:29.852 INFO [stderr] warning: unused variable: `dur`
Dec 12 09:02:29.852 INFO [stderr]   --> src/sched.rs:55:32
Dec 12 09:02:29.852 INFO [stderr]    |
Dec 12 09:02:29.852 INFO [stderr] 55 |     pub(crate) fn sleep(&self, dur: Duration) {}
Dec 12 09:02:29.852 INFO [stderr]    |                                ^^^ help: consider using `_dur` instead
Dec 12 09:02:29.852 INFO [stderr]    |
Dec 12 09:02:29.852 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 09:02:29.852 INFO [stderr] 
Dec 12 09:02:29.867 INFO [stderr] warning: method is never used: `new`
Dec 12 09:02:29.867 INFO [stderr]   --> src/sched.rs:22:5
Dec 12 09:02:29.867 INFO [stderr]    |
Dec 12 09:02:29.867 INFO [stderr] 22 |     fn new() -> Process {
Dec 12 09:02:29.867 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 12 09:02:29.867 INFO [stderr]    |
Dec 12 09:02:29.867 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 09:02:29.867 INFO [stderr] 
Dec 12 09:02:29.867 INFO [stderr] warning: field is never used: `tid_to_group`
Dec 12 09:02:29.867 INFO [stderr]   --> src/sched.rs:28:5
Dec 12 09:02:29.867 INFO [stderr]    |
Dec 12 09:02:29.867 INFO [stderr] 28 |     tid_to_group: Mutex<HashMap<ThreadId, Arc<Process>>>,
Dec 12 09:02:29.867 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 09:02:29.867 INFO [stderr] 
Dec 12 09:02:29.867 INFO [stderr] warning: method is never used: `run`
Dec 12 09:02:29.867 INFO [stderr]   --> src/sched.rs:32:5
Dec 12 09:02:29.867 INFO [stderr]    |
Dec 12 09:02:29.867 INFO [stderr] 32 | /     pub fn run<F, T>(&self, f: F) -> T
Dec 12 09:02:29.867 INFO [stderr] 33 | |         where F: FnOnce() -> T,
Dec 12 09:02:29.867 INFO [stderr] 34 | |               F: panic::UnwindSafe,
Dec 12 09:02:29.867 INFO [stderr] 35 | |               F: Send + 'static,
Dec 12 09:02:29.867 INFO [stderr] ...  |
Dec 12 09:02:29.867 INFO [stderr] 46 | |         f()
Dec 12 09:02:29.867 INFO [stderr] 47 | |     }
Dec 12 09:02:29.867 INFO [stderr]    | |_____^
Dec 12 09:02:29.867 INFO [stderr] 
Dec 12 09:02:29.867 INFO [stderr] warning: function is never used: `tid`
Dec 12 09:02:29.867 INFO [stderr]   --> src/sched.rs:92:1
Dec 12 09:02:29.867 INFO [stderr]    |
Dec 12 09:02:29.867 INFO [stderr] 92 | fn tid() -> ThreadId {
Dec 12 09:02:29.868 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^
Dec 12 09:02:29.868 INFO [stderr] 
Dec 12 09:02:29.896 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
Dec 12 09:02:29.904 INFO [stderr] su: No module specific data is present
Dec 12 09:02:30.856 INFO running `"docker" "inspect" "9f66d88215e924320aa298d4b1b32538392f681adc8bac8cc1caf6efa8e04bfb"`
Dec 12 09:02:31.178 INFO running `"docker" "rm" "-f" "9f66d88215e924320aa298d4b1b32538392f681adc8bac8cc1caf6efa8e04bfb"`
Dec 12 09:02:31.503 INFO [stdout] 9f66d88215e924320aa298d4b1b32538392f681adc8bac8cc1caf6efa8e04bfb