Dec 11 10:32:21.126 INFO checking rust-gjk/ChatApp against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 10:32:21.126 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 10:32:21.570 INFO [stdout] 92b50846cb1fd863387f0cf05254ecdfac008e85b8c6ee510dcfc5f838ffd443
Dec 11 10:32:21.572 INFO running `"docker" "start" "-a" "92b50846cb1fd863387f0cf05254ecdfac008e85b8c6ee510dcfc5f838ffd443"`
Dec 11 10:32:23.208 INFO [stderr] usermod: no changes
Dec 11 10:32:23.296 INFO [stderr]     Checking serde v1.0.44
Dec 11 10:32:23.296 INFO [stderr]     Checking text_io v0.1.7
Dec 11 10:32:23.296 INFO [stderr]    Compiling syn v0.13.4
Dec 11 10:32:35.272 INFO [stderr]    Compiling serde_derive_internals v0.23.1
Dec 11 10:32:39.864 INFO [stderr]    Compiling serde_derive v1.0.44
Dec 11 10:32:43.302 INFO [stderr]     Checking serde_cbor v0.8.2
Dec 11 10:32:51.493 INFO [stderr]     Checking ChatApp v0.1.0 (/source)
Dec 11 10:32:52.596 INFO [stderr] warning: crate `ChatApp` should have a snake case name such as `chat_app`
Dec 11 10:32:52.596 INFO [stderr]   |
Dec 11 10:32:52.596 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 10:32:52.596 INFO [stderr] 
Dec 11 10:32:52.676 INFO [stderr] warning: crate `ChatApp` should have a snake case name such as `chat_app`
Dec 11 10:32:52.677 INFO [stderr]   |
Dec 11 10:32:52.677 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 11 10:32:52.677 INFO [stderr] 
Dec 11 10:32:53.509 INFO [stderr] warning: variable does not need to be mutable
Dec 11 10:32:53.509 INFO [stderr]  --> src/server.rs:4:9
Dec 11 10:32:53.510 INFO [stderr]   |
Dec 11 10:32:53.510 INFO [stderr] 4 |     let mut socket = UdpSocket::bind("0.0.0.0:12345").unwrap();
Dec 11 10:32:53.510 INFO [stderr]   |         ----^^^^^^
Dec 11 10:32:53.510 INFO [stderr]   |         |
Dec 11 10:32:53.510 INFO [stderr]   |         help: remove this `mut`
Dec 11 10:32:53.511 INFO [stderr]   |
Dec 11 10:32:53.511 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 11 10:32:53.511 INFO [stderr] 
Dec 11 10:32:53.511 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:32:53.511 INFO [stderr]   --> src/client.rs:14:5
Dec 11 10:32:53.512 INFO [stderr]    |
Dec 11 10:32:53.512 INFO [stderr] 14 |     recv_socket.send(b"connected");
Dec 11 10:32:53.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:32:53.512 INFO [stderr]    |
Dec 11 10:32:53.513 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 10:32:53.513 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:32:53.513 INFO [stderr] 
Dec 11 10:32:53.513 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:32:53.513 INFO [stderr]   --> src/client.rs:19:6
Dec 11 10:32:53.514 INFO [stderr]    |
Dec 11 10:32:53.514 INFO [stderr] 19 |         send_socket.send(zprava.as_bytes());
Dec 11 10:32:53.514 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:32:53.514 INFO [stderr]    |
Dec 11 10:32:53.514 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:32:53.515 INFO [stderr] 
Dec 11 10:32:53.595 INFO [stderr] warning: variable does not need to be mutable
Dec 11 10:32:53.595 INFO [stderr]  --> src/server.rs:4:9
Dec 11 10:32:53.595 INFO [stderr]   |
Dec 11 10:32:53.595 INFO [stderr] 4 |     let mut socket = UdpSocket::bind("0.0.0.0:12345").unwrap();
Dec 11 10:32:53.595 INFO [stderr]   |         ----^^^^^^
Dec 11 10:32:53.595 INFO [stderr]   |         |
Dec 11 10:32:53.595 INFO [stderr]   |         help: remove this `mut`
Dec 11 10:32:53.595 INFO [stderr]   |
Dec 11 10:32:53.595 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 11 10:32:53.595 INFO [stderr] 
Dec 11 10:32:53.596 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:32:53.596 INFO [stderr]   --> src/client.rs:14:5
Dec 11 10:32:53.596 INFO [stderr]    |
Dec 11 10:32:53.596 INFO [stderr] 14 |     recv_socket.send(b"connected");
Dec 11 10:32:53.596 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:32:53.596 INFO [stderr]    |
Dec 11 10:32:53.596 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 10:32:53.596 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:32:53.596 INFO [stderr] 
Dec 11 10:32:53.605 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:32:53.605 INFO [stderr]   --> src/client.rs:19:6
Dec 11 10:32:53.605 INFO [stderr]    |
Dec 11 10:32:53.605 INFO [stderr] 19 |         send_socket.send(zprava.as_bytes());
Dec 11 10:32:53.605 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:32:53.605 INFO [stderr]    |
Dec 11 10:32:53.606 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:32:53.606 INFO [stderr] 
Dec 11 10:32:53.634 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.39s
Dec 11 10:32:53.638 INFO [stderr] su: No module specific data is present
Dec 11 10:32:54.214 INFO running `"docker" "inspect" "92b50846cb1fd863387f0cf05254ecdfac008e85b8c6ee510dcfc5f838ffd443"`
Dec 11 10:32:54.478 INFO running `"docker" "rm" "-f" "92b50846cb1fd863387f0cf05254ecdfac008e85b8c6ee510dcfc5f838ffd443"`
Dec 11 10:32:54.752 INFO [stdout] 92b50846cb1fd863387f0cf05254ecdfac008e85b8c6ee510dcfc5f838ffd443