Dec 19 13:29:11.732 INFO checking lowellmower/server against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 13:29:11.732 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/lowellmower/server:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:29:11.904 INFO [stdout] b5be5577dd8e5b605daf5b407ae768f244ebdd1887d5dfbabe699fc77979052a
Dec 19 13:29:11.906 INFO running `"docker" "start" "-a" "b5be5577dd8e5b605daf5b407ae768f244ebdd1887d5dfbabe699fc77979052a"`
Dec 19 13:29:12.708 INFO [stderr]     Checking server v0.1.0 (/opt/crater/workdir)
Dec 19 13:29:12.926 INFO [stderr] warning: private type `(dyn FnBox + std::marker::Send + 'static)` in public interface (error E0446)
Dec 19 13:29:12.926 INFO [stderr]   --> src/lib.rs:21:1
Dec 19 13:29:12.926 INFO [stderr]    |
Dec 19 13:29:12.926 INFO [stderr] 21 | pub type Job = Box<FnBox + Send + 'static>;
Dec 19 13:29:12.926 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:29:12.926 INFO [stderr]    |
Dec 19 13:29:12.926 INFO [stderr]    = note: #[warn(private_in_public)] on by default
Dec 19 13:29:12.926 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 13:29:12.926 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 19 13:29:12.926 INFO [stderr] 
Dec 19 13:29:12.926 INFO [stderr] warning: private type `(dyn FnBox + std::marker::Send + 'static)` in public interface (error E0446)
Dec 19 13:29:12.926 INFO [stderr]   --> src/lib.rs:69:5
Dec 19 13:29:12.926 INFO [stderr]    |
Dec 19 13:29:12.926 INFO [stderr] 69 | /     pub fn new(id: usize, receiver: Arc<Mutex<mpsc::Receiver<Job>>>) -> Worker {
Dec 19 13:29:12.926 INFO [stderr] 70 | |         let thread = thread::spawn(move || loop {
Dec 19 13:29:12.926 INFO [stderr] 71 | |             let job = receiver.lock().unwrap().recv().unwrap();
Dec 19 13:29:12.926 INFO [stderr] 72 | |
Dec 19 13:29:12.926 INFO [stderr] ...  |
Dec 19 13:29:12.926 INFO [stderr] 85 | |         Worker { id, thread }
Dec 19 13:29:12.926 INFO [stderr] 86 | |     }
Dec 19 13:29:12.926 INFO [stderr]    | |_____^
Dec 19 13:29:12.926 INFO [stderr]    |
Dec 19 13:29:12.926 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 13:29:12.926 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 19 13:29:12.926 INFO [stderr] 
Dec 19 13:29:12.935 INFO [stderr] warning: field is never used: `workers`
Dec 19 13:29:12.935 INFO [stderr]  --> src/lib.rs:7:5
Dec 19 13:29:12.935 INFO [stderr]   |
Dec 19 13:29:12.935 INFO [stderr] 7 |     workers: Vec<Worker>,
Dec 19 13:29:12.935 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 13:29:12.935 INFO [stderr]   |
Dec 19 13:29:12.935 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 13:29:12.935 INFO [stderr] 
Dec 19 13:29:12.935 INFO [stderr] warning: field is never used: `id`
Dec 19 13:29:12.935 INFO [stderr]   --> src/lib.rs:58:5
Dec 19 13:29:12.935 INFO [stderr]    |
Dec 19 13:29:12.935 INFO [stderr] 58 |     id: usize,
Dec 19 13:29:12.935 INFO [stderr]    |     ^^^^^^^^^
Dec 19 13:29:12.935 INFO [stderr] 
Dec 19 13:29:12.935 INFO [stderr] warning: field is never used: `thread`
Dec 19 13:29:12.935 INFO [stderr]   --> src/lib.rs:59:5
Dec 19 13:29:12.935 INFO [stderr]    |
Dec 19 13:29:12.936 INFO [stderr] 59 |     thread: thread::JoinHandle<()>,
Dec 19 13:29:12.936 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:29:12.936 INFO [stderr] 
Dec 19 13:29:13.005 INFO [stderr] warning: private type `(dyn FnBox + std::marker::Send + 'static)` in public interface (error E0446)
Dec 19 13:29:13.005 INFO [stderr]   --> src/lib.rs:21:1
Dec 19 13:29:13.005 INFO [stderr]    |
Dec 19 13:29:13.005 INFO [stderr] 21 | pub type Job = Box<FnBox + Send + 'static>;
Dec 19 13:29:13.005 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:29:13.005 INFO [stderr]    |
Dec 19 13:29:13.005 INFO [stderr]    = note: #[warn(private_in_public)] on by default
Dec 19 13:29:13.005 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 13:29:13.005 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 19 13:29:13.005 INFO [stderr] 
Dec 19 13:29:13.005 INFO [stderr] warning: private type `(dyn FnBox + std::marker::Send + 'static)` in public interface (error E0446)
Dec 19 13:29:13.005 INFO [stderr]   --> src/lib.rs:69:5
Dec 19 13:29:13.005 INFO [stderr]    |
Dec 19 13:29:13.005 INFO [stderr] 69 | /     pub fn new(id: usize, receiver: Arc<Mutex<mpsc::Receiver<Job>>>) -> Worker {
Dec 19 13:29:13.005 INFO [stderr] 70 | |         let thread = thread::spawn(move || loop {
Dec 19 13:29:13.005 INFO [stderr] 71 | |             let job = receiver.lock().unwrap().recv().unwrap();
Dec 19 13:29:13.005 INFO [stderr] 72 | |
Dec 19 13:29:13.005 INFO [stderr] ...  |
Dec 19 13:29:13.005 INFO [stderr] 85 | |         Worker { id, thread }
Dec 19 13:29:13.005 INFO [stderr] 86 | |     }
Dec 19 13:29:13.005 INFO [stderr]    | |_____^
Dec 19 13:29:13.005 INFO [stderr]    |
Dec 19 13:29:13.005 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 13:29:13.005 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 19 13:29:13.005 INFO [stderr] 
Dec 19 13:29:13.021 INFO [stderr] warning: field is never used: `workers`
Dec 19 13:29:13.021 INFO [stderr]  --> src/lib.rs:7:5
Dec 19 13:29:13.021 INFO [stderr]   |
Dec 19 13:29:13.021 INFO [stderr] 7 |     workers: Vec<Worker>,
Dec 19 13:29:13.021 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 13:29:13.021 INFO [stderr]   |
Dec 19 13:29:13.021 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 13:29:13.021 INFO [stderr] 
Dec 19 13:29:13.021 INFO [stderr] warning: field is never used: `id`
Dec 19 13:29:13.021 INFO [stderr]   --> src/lib.rs:58:5
Dec 19 13:29:13.021 INFO [stderr]    |
Dec 19 13:29:13.021 INFO [stderr] 58 |     id: usize,
Dec 19 13:29:13.021 INFO [stderr]    |     ^^^^^^^^^
Dec 19 13:29:13.021 INFO [stderr] 
Dec 19 13:29:13.021 INFO [stderr] warning: field is never used: `thread`
Dec 19 13:29:13.021 INFO [stderr]   --> src/lib.rs:59:5
Dec 19 13:29:13.021 INFO [stderr]    |
Dec 19 13:29:13.021 INFO [stderr] 59 |     thread: thread::JoinHandle<()>,
Dec 19 13:29:13.021 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:29:13.021 INFO [stderr] 
Dec 19 13:29:13.184 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
Dec 19 13:29:13.429 INFO running `"docker" "inspect" "b5be5577dd8e5b605daf5b407ae768f244ebdd1887d5dfbabe699fc77979052a"`
Dec 19 13:29:13.520 INFO running `"docker" "rm" "-f" "b5be5577dd8e5b605daf5b407ae768f244ebdd1887d5dfbabe699fc77979052a"`
Dec 19 13:29:13.620 INFO [stdout] b5be5577dd8e5b605daf5b407ae768f244ebdd1887d5dfbabe699fc77979052a