Dec 19 09:45:20.653 INFO checking rust-gjk/ChatApp against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 09:45:20.653 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/rust-gjk/ChatApp:/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 09:45:20.889 INFO [stdout] 2fdd4f818046182168d51362efa216389a09d4c9bbb33fe99e8ba4a617a3ef55
Dec 19 09:45:20.894 INFO running `"docker" "start" "-a" "2fdd4f818046182168d51362efa216389a09d4c9bbb33fe99e8ba4a617a3ef55"`
Dec 19 09:45:22.024 INFO [stderr]     Checking serde v1.0.44
Dec 19 09:45:22.024 INFO [stderr]    Compiling syn v0.13.4
Dec 19 09:45:35.449 INFO [stderr]    Compiling serde_derive_internals v0.23.1
Dec 19 09:45:40.218 INFO [stderr]    Compiling serde_derive v1.0.44
Dec 19 09:45:44.292 INFO [stderr]     Checking serde_cbor v0.8.2
Dec 19 09:45:49.900 INFO [stderr]     Checking ChatApp v0.1.0 (/opt/crater/workdir)
Dec 19 09:45:50.736 INFO [stderr] warning: crate `ChatApp` should have a snake case name such as `chat_app`
Dec 19 09:45:50.736 INFO [stderr]   |
Dec 19 09:45:50.736 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 19 09:45:50.736 INFO [stderr] 
Dec 19 09:45:50.813 INFO [stderr] warning: crate `ChatApp` should have a snake case name such as `chat_app`
Dec 19 09:45:50.813 INFO [stderr]   |
Dec 19 09:45:50.813 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 19 09:45:50.813 INFO [stderr] 
Dec 19 09:45:51.328 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:45:51.328 INFO [stderr]  --> src/server.rs:4:9
Dec 19 09:45:51.328 INFO [stderr]   |
Dec 19 09:45:51.328 INFO [stderr] 4 |     let mut socket = UdpSocket::bind("0.0.0.0:12345").unwrap();
Dec 19 09:45:51.328 INFO [stderr]   |         ----^^^^^^
Dec 19 09:45:51.328 INFO [stderr]   |         |
Dec 19 09:45:51.328 INFO [stderr]   |         help: remove this `mut`
Dec 19 09:45:51.328 INFO [stderr]   |
Dec 19 09:45:51.328 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 09:45:51.328 INFO [stderr] 
Dec 19 09:45:51.328 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:45:51.328 INFO [stderr]   --> src/client.rs:14:5
Dec 19 09:45:51.328 INFO [stderr]    |
Dec 19 09:45:51.328 INFO [stderr] 14 |     recv_socket.send(b"connected");
Dec 19 09:45:51.328 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:45:51.328 INFO [stderr]    |
Dec 19 09:45:51.328 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 09:45:51.328 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:45:51.328 INFO [stderr] 
Dec 19 09:45:51.328 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:45:51.328 INFO [stderr]   --> src/client.rs:19:6
Dec 19 09:45:51.328 INFO [stderr]    |
Dec 19 09:45:51.328 INFO [stderr] 19 |         send_socket.send(zprava.as_bytes());
Dec 19 09:45:51.328 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:45:51.328 INFO [stderr]    |
Dec 19 09:45:51.328 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:45:51.328 INFO [stderr] 
Dec 19 09:45:51.369 INFO [stderr] warning: variable does not need to be mutable
Dec 19 09:45:51.369 INFO [stderr]  --> src/server.rs:4:9
Dec 19 09:45:51.370 INFO [stderr]   |
Dec 19 09:45:51.370 INFO [stderr] 4 |     let mut socket = UdpSocket::bind("0.0.0.0:12345").unwrap();
Dec 19 09:45:51.370 INFO [stderr]   |         ----^^^^^^
Dec 19 09:45:51.370 INFO [stderr]   |         |
Dec 19 09:45:51.370 INFO [stderr]   |         help: remove this `mut`
Dec 19 09:45:51.370 INFO [stderr]   |
Dec 19 09:45:51.370 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 09:45:51.370 INFO [stderr] 
Dec 19 09:45:51.370 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:45:51.370 INFO [stderr]   --> src/client.rs:14:5
Dec 19 09:45:51.370 INFO [stderr]    |
Dec 19 09:45:51.370 INFO [stderr] 14 |     recv_socket.send(b"connected");
Dec 19 09:45:51.370 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:45:51.370 INFO [stderr]    |
Dec 19 09:45:51.370 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 09:45:51.370 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:45:51.370 INFO [stderr] 
Dec 19 09:45:51.370 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 09:45:51.370 INFO [stderr]   --> src/client.rs:19:6
Dec 19 09:45:51.370 INFO [stderr]    |
Dec 19 09:45:51.370 INFO [stderr] 19 |         send_socket.send(zprava.as_bytes());
Dec 19 09:45:51.370 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:45:51.370 INFO [stderr]    |
Dec 19 09:45:51.370 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 09:45:51.370 INFO [stderr] 
Dec 19 09:45:51.408 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.48s
Dec 19 09:45:52.034 INFO running `"docker" "inspect" "2fdd4f818046182168d51362efa216389a09d4c9bbb33fe99e8ba4a617a3ef55"`
Dec 19 09:45:52.331 INFO running `"docker" "rm" "-f" "2fdd4f818046182168d51362efa216389a09d4c9bbb33fe99e8ba4a617a3ef55"`
Dec 19 09:45:52.440 INFO [stdout] 2fdd4f818046182168d51362efa216389a09d4c9bbb33fe99e8ba4a617a3ef55