Dec 11 13:56:14.205 INFO checking mattyw/rust-udp-play against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 13:56:14.205 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 13:56:14.807 INFO [stdout] 0807c44521f9bbca08a551a59fa8451e4258912093f04a677a4d353706112563
Dec 11 13:56:14.809 INFO running `"docker" "start" "-a" "0807c44521f9bbca08a551a59fa8451e4258912093f04a677a4d353706112563"`
Dec 11 13:56:16.368 INFO [stderr] usermod: no changes
Dec 11 13:56:16.428 INFO [stderr]     Checking hello v0.1.0 (/source)
Dec 11 13:56:16.960 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Dec 11 13:56:16.960 INFO [stderr]  --> src/main.rs:3:23
Dec 11 13:56:16.960 INFO [stderr]   |
Dec 11 13:56:16.960 INFO [stderr] 3 | use std::sync::mpsc::{Sender, Receiver};
Dec 11 13:56:16.960 INFO [stderr]   |                       ^^^^^^  ^^^^^^^^
Dec 11 13:56:16.960 INFO [stderr]   |
Dec 11 13:56:16.960 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:56:16.960 INFO [stderr] 
Dec 11 13:56:16.960 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 11 13:56:16.960 INFO [stderr]  --> src/main.rs:4:5
Dec 11 13:56:16.960 INFO [stderr]   |
Dec 11 13:56:16.960 INFO [stderr] 4 | use std::sync::mpsc;
Dec 11 13:56:16.960 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:56:16.960 INFO [stderr] 
Dec 11 13:56:17.076 INFO [stderr] warning: unused variable: `i`
Dec 11 13:56:17.076 INFO [stderr]   --> src/main.rs:38:9
Dec 11 13:56:17.076 INFO [stderr]    |
Dec 11 13:56:17.076 INFO [stderr] 38 |     for i in 0..50 {
Dec 11 13:56:17.076 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 11 13:56:17.076 INFO [stderr]    |
Dec 11 13:56:17.076 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 13:56:17.076 INFO [stderr] 
Dec 11 13:56:17.076 INFO [stderr] warning: unused variable: `listen_on`
Dec 11 13:56:17.076 INFO [stderr]   --> src/main.rs:37:52
Dec 11 13:56:17.076 INFO [stderr]    |
Dec 11 13:56:17.076 INFO [stderr] 37 | fn listen(server_name: &str, sock: net::UdpSocket, listen_on: net::SocketAddr) {
Dec 11 13:56:17.076 INFO [stderr]    |                                                    ^^^^^^^^^ help: consider using `_listen_on` instead
Dec 11 13:56:17.076 INFO [stderr] 
Dec 11 13:56:17.076 INFO [stderr] warning: variable does not need to be mutable
Dec 11 13:56:17.076 INFO [stderr]  --> src/main.rs:8:9
Dec 11 13:56:17.076 INFO [stderr]   |
Dec 11 13:56:17.076 INFO [stderr] 8 |     let mut socket;
Dec 11 13:56:17.076 INFO [stderr]   |         ----^^^^^^
Dec 11 13:56:17.076 INFO [stderr]   |         |
Dec 11 13:56:17.076 INFO [stderr]   |         help: remove this `mut`
Dec 11 13:56:17.076 INFO [stderr]   |
Dec 11 13:56:17.077 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 11 13:56:17.077 INFO [stderr] 
Dec 11 13:56:17.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:56:17.084 INFO [stderr]   --> src/main.rs:44:5
Dec 11 13:56:17.084 INFO [stderr]    |
Dec 11 13:56:17.084 INFO [stderr] 44 |     sock.send_to(&msg, addr);
Dec 11 13:56:17.084 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:56:17.084 INFO [stderr]    |
Dec 11 13:56:17.084 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:56:17.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:56:17.084 INFO [stderr] 
Dec 11 13:56:17.262 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Dec 11 13:56:17.262 INFO [stderr]  --> src/main.rs:3:23
Dec 11 13:56:17.262 INFO [stderr]   |
Dec 11 13:56:17.262 INFO [stderr] 3 | use std::sync::mpsc::{Sender, Receiver};
Dec 11 13:56:17.262 INFO [stderr]   |                       ^^^^^^  ^^^^^^^^
Dec 11 13:56:17.262 INFO [stderr]   |
Dec 11 13:56:17.262 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:56:17.262 INFO [stderr] 
Dec 11 13:56:17.262 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 11 13:56:17.262 INFO [stderr]  --> src/main.rs:4:5
Dec 11 13:56:17.262 INFO [stderr]   |
Dec 11 13:56:17.262 INFO [stderr] 4 | use std::sync::mpsc;
Dec 11 13:56:17.262 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 13:56:17.262 INFO [stderr] 
Dec 11 13:56:17.315 INFO [stderr] warning: unused variable: `i`
Dec 11 13:56:17.315 INFO [stderr]   --> src/main.rs:38:9
Dec 11 13:56:17.315 INFO [stderr]    |
Dec 11 13:56:17.315 INFO [stderr] 38 |     for i in 0..50 {
Dec 11 13:56:17.315 INFO [stderr]    |         ^ help: consider using `_i` instead
Dec 11 13:56:17.315 INFO [stderr]    |
Dec 11 13:56:17.315 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 13:56:17.315 INFO [stderr] 
Dec 11 13:56:17.315 INFO [stderr] warning: unused variable: `listen_on`
Dec 11 13:56:17.315 INFO [stderr]   --> src/main.rs:37:52
Dec 11 13:56:17.315 INFO [stderr]    |
Dec 11 13:56:17.315 INFO [stderr] 37 | fn listen(server_name: &str, sock: net::UdpSocket, listen_on: net::SocketAddr) {
Dec 11 13:56:17.315 INFO [stderr]    |                                                    ^^^^^^^^^ help: consider using `_listen_on` instead
Dec 11 13:56:17.315 INFO [stderr] 
Dec 11 13:56:17.318 INFO [stderr] warning: variable does not need to be mutable
Dec 11 13:56:17.318 INFO [stderr]  --> src/main.rs:8:9
Dec 11 13:56:17.318 INFO [stderr]   |
Dec 11 13:56:17.318 INFO [stderr] 8 |     let mut socket;
Dec 11 13:56:17.318 INFO [stderr]   |         ----^^^^^^
Dec 11 13:56:17.318 INFO [stderr]   |         |
Dec 11 13:56:17.318 INFO [stderr]   |         help: remove this `mut`
Dec 11 13:56:17.318 INFO [stderr]   |
Dec 11 13:56:17.318 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 11 13:56:17.318 INFO [stderr] 
Dec 11 13:56:17.326 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:56:17.326 INFO [stderr]   --> src/main.rs:44:5
Dec 11 13:56:17.326 INFO [stderr]    |
Dec 11 13:56:17.326 INFO [stderr] 44 |     sock.send_to(&msg, addr);
Dec 11 13:56:17.326 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:56:17.326 INFO [stderr]    |
Dec 11 13:56:17.326 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:56:17.326 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:56:17.326 INFO [stderr] 
Dec 11 13:56:17.360 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
Dec 11 13:56:17.362 INFO [stderr] su: No module specific data is present
Dec 11 13:56:18.980 INFO running `"docker" "inspect" "0807c44521f9bbca08a551a59fa8451e4258912093f04a677a4d353706112563"`
Dec 11 13:56:19.302 INFO running `"docker" "rm" "-f" "0807c44521f9bbca08a551a59fa8451e4258912093f04a677a4d353706112563"`
Dec 11 13:56:19.584 INFO [stdout] 0807c44521f9bbca08a551a59fa8451e4258912093f04a677a4d353706112563