Nov 27 21:31:47.956 INFO checking rust-gjk/ChatApp against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 21:31:47.956 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 27 21:31:48.192 INFO [stdout] abe6b3b380125f1ba3326de6c814bfd73cd0e28e9cc5c683dfe830f9caf3233e
Nov 27 21:31:48.192 INFO running `"docker" "start" "-a" "abe6b3b380125f1ba3326de6c814bfd73cd0e28e9cc5c683dfe830f9caf3233e"`
Nov 27 21:31:49.004 INFO [stderr] usermod: no changes
Nov 27 21:31:49.061 INFO [stderr]     Checking serde v1.0.44
Nov 27 21:31:49.062 INFO [stderr]    Compiling syn v0.13.4
Nov 27 21:32:01.072 INFO [stderr]    Compiling serde_derive_internals v0.23.1
Nov 27 21:32:07.962 INFO [stderr]     Checking serde_cbor v0.8.2
Nov 27 21:32:08.181 INFO [stderr]    Compiling serde_derive v1.0.44
Nov 27 21:32:19.712 INFO [stderr]     Checking ChatApp v0.1.0 (/source)
Nov 27 21:32:20.840 INFO [stderr] warning: crate `ChatApp` should have a snake case name such as `chat_app`
Nov 27 21:32:20.841 INFO [stderr]   |
Nov 27 21:32:20.842 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 27 21:32:20.843 INFO [stderr] 
Nov 27 21:32:20.884 INFO [stderr] warning: crate `ChatApp` should have a snake case name such as `chat_app`
Nov 27 21:32:20.885 INFO [stderr]   |
Nov 27 21:32:20.886 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 27 21:32:20.887 INFO [stderr] 
Nov 27 21:32:21.534 INFO [stderr] warning: variable does not need to be mutable
Nov 27 21:32:21.535 INFO [stderr]  --> src/server.rs:4:9
Nov 27 21:32:21.535 INFO [stderr]   |
Nov 27 21:32:21.536 INFO [stderr] 4 |     let mut socket = UdpSocket::bind("0.0.0.0:12345").unwrap();
Nov 27 21:32:21.537 INFO [stderr]   |         ----^^^^^^
Nov 27 21:32:21.537 INFO [stderr]   |         |
Nov 27 21:32:21.538 INFO [stderr]   |         help: remove this `mut`
Nov 27 21:32:21.539 INFO [stderr]   |
Nov 27 21:32:21.539 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 27 21:32:21.540 INFO [stderr] 
Nov 27 21:32:21.540 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 21:32:21.541 INFO [stderr]   --> src/client.rs:14:5
Nov 27 21:32:21.542 INFO [stderr]    |
Nov 27 21:32:21.542 INFO [stderr] 14 |     recv_socket.send(b"connected");
Nov 27 21:32:21.543 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 21:32:21.544 INFO [stderr]    |
Nov 27 21:32:21.544 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 21:32:21.545 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 21:32:21.545 INFO [stderr] 
Nov 27 21:32:21.546 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 21:32:21.546 INFO [stderr]   --> src/client.rs:19:6
Nov 27 21:32:21.547 INFO [stderr]    |
Nov 27 21:32:21.548 INFO [stderr] 19 |         send_socket.send(zprava.as_bytes());
Nov 27 21:32:21.548 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 21:32:21.549 INFO [stderr]    |
Nov 27 21:32:21.549 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 21:32:21.550 INFO [stderr] 
Nov 27 21:32:21.674 INFO [stderr] warning: variable does not need to be mutable
Nov 27 21:32:21.675 INFO [stderr]  --> src/server.rs:4:9
Nov 27 21:32:21.676 INFO [stderr]   |
Nov 27 21:32:21.676 INFO [stderr] 4 |     let mut socket = UdpSocket::bind("0.0.0.0:12345").unwrap();
Nov 27 21:32:21.677 INFO [stderr]   |         ----^^^^^^
Nov 27 21:32:21.678 INFO [stderr]   |         |
Nov 27 21:32:21.678 INFO [stderr]   |         help: remove this `mut`
Nov 27 21:32:21.679 INFO [stderr]   |
Nov 27 21:32:21.679 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 27 21:32:21.680 INFO [stderr] 
Nov 27 21:32:21.682 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 21:32:21.682 INFO [stderr]   --> src/client.rs:14:5
Nov 27 21:32:21.683 INFO [stderr]    |
Nov 27 21:32:21.683 INFO [stderr] 14 |     recv_socket.send(b"connected");
Nov 27 21:32:21.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 21:32:21.685 INFO [stderr]    |
Nov 27 21:32:21.685 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 21:32:21.686 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 21:32:21.686 INFO [stderr] 
Nov 27 21:32:21.688 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 21:32:21.688 INFO [stderr]   --> src/client.rs:19:6
Nov 27 21:32:21.689 INFO [stderr]    |
Nov 27 21:32:21.689 INFO [stderr] 19 |         send_socket.send(zprava.as_bytes());
Nov 27 21:32:21.690 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 21:32:21.690 INFO [stderr]    |
Nov 27 21:32:21.691 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 21:32:21.691 INFO [stderr] 
Nov 27 21:32:21.724 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.71s
Nov 27 21:32:21.729 INFO [stderr] su: No module specific data is present
Nov 27 21:32:22.852 INFO running `"docker" "inspect" "abe6b3b380125f1ba3326de6c814bfd73cd0e28e9cc5c683dfe830f9caf3233e"`
Nov 27 21:32:23.152 INFO running `"docker" "rm" "-f" "abe6b3b380125f1ba3326de6c814bfd73cd0e28e9cc5c683dfe830f9caf3233e"`
Nov 27 21:32:23.294 INFO [stdout] abe6b3b380125f1ba3326de6c814bfd73cd0e28e9cc5c683dfe830f9caf3233e