Dec 11 05:10:08.844 INFO checking zerovolts/rust-chat against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 05:10:08.844 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 05:10:09.274 INFO [stdout] 5acf7f0700655b3ef5cb81c818f23f2934860d61c056d0194259f8edf9f088d8
Dec 11 05:10:09.275 INFO running `"docker" "start" "-a" "5acf7f0700655b3ef5cb81c818f23f2934860d61c056d0194259f8edf9f088d8"`
Dec 11 05:10:10.796 INFO [stderr] usermod: no changes
Dec 11 05:10:10.836 INFO [stderr]     Checking rust-chat v0.1.0 (/source)
Dec 11 05:10:11.124 INFO [stderr] warning: unused import: `Write`
Dec 11 05:10:11.125 INFO [stderr]  --> src/server.rs:3:21
Dec 11 05:10:11.125 INFO [stderr]   |
Dec 11 05:10:11.125 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 11 05:10:11.126 INFO [stderr]   |                     ^^^^^
Dec 11 05:10:11.126 INFO [stderr]   |
Dec 11 05:10:11.126 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 05:10:11.126 INFO [stderr] 
Dec 11 05:10:11.127 INFO [stderr] warning: unused import: `TcpListener`
Dec 11 05:10:11.127 INFO [stderr]  --> src/client.rs:1:16
Dec 11 05:10:11.127 INFO [stderr]   |
Dec 11 05:10:11.128 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream};
Dec 11 05:10:11.128 INFO [stderr]   |                ^^^^^^^^^^^
Dec 11 05:10:11.128 INFO [stderr] 
Dec 11 05:10:11.128 INFO [stderr] warning: unused imports: `Arc`, `Mutex`
Dec 11 05:10:11.129 INFO [stderr]  --> src/client.rs:2:17
Dec 11 05:10:11.129 INFO [stderr]   |
Dec 11 05:10:11.129 INFO [stderr] 2 | use std::sync::{Arc, Mutex};
Dec 11 05:10:11.129 INFO [stderr]   |                 ^^^  ^^^^^
Dec 11 05:10:11.130 INFO [stderr] 
Dec 11 05:10:11.130 INFO [stderr] warning: unused import: `Read`
Dec 11 05:10:11.130 INFO [stderr]  --> src/client.rs:3:15
Dec 11 05:10:11.130 INFO [stderr]   |
Dec 11 05:10:11.131 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 11 05:10:11.131 INFO [stderr]   |               ^^^^
Dec 11 05:10:11.131 INFO [stderr] 
Dec 11 05:10:11.131 INFO [stderr] warning: unused imports: `thread`, `time`
Dec 11 05:10:11.132 INFO [stderr]  --> src/client.rs:4:11
Dec 11 05:10:11.132 INFO [stderr]   |
Dec 11 05:10:11.132 INFO [stderr] 4 | use std::{thread, time};
Dec 11 05:10:11.133 INFO [stderr]   |           ^^^^^^  ^^^^
Dec 11 05:10:11.133 INFO [stderr] 
Dec 11 05:10:11.164 INFO [stderr] warning: unused import: `Write`
Dec 11 05:10:11.165 INFO [stderr]  --> src/server.rs:3:21
Dec 11 05:10:11.165 INFO [stderr]   |
Dec 11 05:10:11.165 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 11 05:10:11.166 INFO [stderr]   |                     ^^^^^
Dec 11 05:10:11.166 INFO [stderr]   |
Dec 11 05:10:11.166 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 05:10:11.166 INFO [stderr] 
Dec 11 05:10:11.166 INFO [stderr] warning: unused import: `TcpListener`
Dec 11 05:10:11.166 INFO [stderr]  --> src/client.rs:1:16
Dec 11 05:10:11.166 INFO [stderr]   |
Dec 11 05:10:11.166 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream};
Dec 11 05:10:11.166 INFO [stderr]   |                ^^^^^^^^^^^
Dec 11 05:10:11.166 INFO [stderr] 
Dec 11 05:10:11.166 INFO [stderr] warning: unused imports: `Arc`, `Mutex`
Dec 11 05:10:11.166 INFO [stderr]  --> src/client.rs:2:17
Dec 11 05:10:11.166 INFO [stderr]   |
Dec 11 05:10:11.166 INFO [stderr] 2 | use std::sync::{Arc, Mutex};
Dec 11 05:10:11.166 INFO [stderr]   |                 ^^^  ^^^^^
Dec 11 05:10:11.166 INFO [stderr] 
Dec 11 05:10:11.166 INFO [stderr] warning: unused import: `Read`
Dec 11 05:10:11.166 INFO [stderr]  --> src/client.rs:3:15
Dec 11 05:10:11.166 INFO [stderr]   |
Dec 11 05:10:11.166 INFO [stderr] 3 | use std::io::{Read, Write};
Dec 11 05:10:11.166 INFO [stderr]   |               ^^^^
Dec 11 05:10:11.167 INFO [stderr] 
Dec 11 05:10:11.167 INFO [stderr] warning: unused imports: `thread`, `time`
Dec 11 05:10:11.167 INFO [stderr]  --> src/client.rs:4:11
Dec 11 05:10:11.167 INFO [stderr]   |
Dec 11 05:10:11.167 INFO [stderr] 4 | use std::{thread, time};
Dec 11 05:10:11.167 INFO [stderr]   |           ^^^^^^  ^^^^
Dec 11 05:10:11.167 INFO [stderr] 
Dec 11 05:10:11.228 INFO [stderr] warning: unused variable: `e`
Dec 11 05:10:11.228 INFO [stderr]   --> src/server.rs:32:21
Dec 11 05:10:11.228 INFO [stderr]    |
Dec 11 05:10:11.228 INFO [stderr] 32 |                 Err(e) => ()
Dec 11 05:10:11.228 INFO [stderr]    |                     ^ help: consider using `_e` instead
Dec 11 05:10:11.228 INFO [stderr]    |
Dec 11 05:10:11.228 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 05:10:11.228 INFO [stderr] 
Dec 11 05:10:11.243 INFO [stderr] warning: variable does not need to be mutable
Dec 11 05:10:11.243 INFO [stderr]   --> src/server.rs:37:22
Dec 11 05:10:11.243 INFO [stderr]    |
Dec 11 05:10:11.243 INFO [stderr] 37 |     fn handle_client(mut stream: Arc<Mutex<TcpStream>>) {
Dec 11 05:10:11.243 INFO [stderr]    |                      ----^^^^^^
Dec 11 05:10:11.243 INFO [stderr]    |                      |
Dec 11 05:10:11.243 INFO [stderr]    |                      help: remove this `mut`
Dec 11 05:10:11.243 INFO [stderr]    |
Dec 11 05:10:11.243 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 05:10:11.243 INFO [stderr] 
Dec 11 05:10:11.245 INFO [stderr] warning: field is never used: `address`
Dec 11 05:10:11.245 INFO [stderr]  --> src/server.rs:6:5
Dec 11 05:10:11.245 INFO [stderr]   |
Dec 11 05:10:11.245 INFO [stderr] 6 |     address: String,
Dec 11 05:10:11.245 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 05:10:11.245 INFO [stderr]   |
Dec 11 05:10:11.245 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 05:10:11.245 INFO [stderr] 
Dec 11 05:10:11.245 INFO [stderr] warning: field is never used: `messages`
Dec 11 05:10:11.245 INFO [stderr]  --> src/server.rs:9:5
Dec 11 05:10:11.245 INFO [stderr]   |
Dec 11 05:10:11.245 INFO [stderr] 9 |     messages: Vec<String>
Dec 11 05:10:11.245 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:10:11.245 INFO [stderr] 
Dec 11 05:10:11.245 INFO [stderr] warning: field is never used: `address`
Dec 11 05:10:11.245 INFO [stderr]  --> src/client.rs:7:5
Dec 11 05:10:11.245 INFO [stderr]   |
Dec 11 05:10:11.245 INFO [stderr] 7 |     address: String,
Dec 11 05:10:11.245 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 05:10:11.245 INFO [stderr] 
Dec 11 05:10:11.264 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:10:11.268 INFO [stderr]   --> src/server.rs:39:9
Dec 11 05:10:11.268 INFO [stderr]    |
Dec 11 05:10:11.268 INFO [stderr] 39 |         stream.lock().unwrap().read_to_string(&mut buffer);
Dec 11 05:10:11.268 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:10:11.268 INFO [stderr]    |
Dec 11 05:10:11.268 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 05:10:11.268 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:10:11.268 INFO [stderr] 
Dec 11 05:10:11.269 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:10:11.269 INFO [stderr]   --> src/client.rs:25:9
Dec 11 05:10:11.269 INFO [stderr]    |
Dec 11 05:10:11.269 INFO [stderr] 25 |         self.stream.write(String::from(message).as_bytes());
Dec 11 05:10:11.269 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:10:11.270 INFO [stderr]    |
Dec 11 05:10:11.270 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:10:11.270 INFO [stderr] 
Dec 11 05:10:11.320 INFO [stderr] warning: unused variable: `e`
Dec 11 05:10:11.320 INFO [stderr]   --> src/server.rs:32:21
Dec 11 05:10:11.320 INFO [stderr]    |
Dec 11 05:10:11.320 INFO [stderr] 32 |                 Err(e) => ()
Dec 11 05:10:11.320 INFO [stderr]    |                     ^ help: consider using `_e` instead
Dec 11 05:10:11.320 INFO [stderr]    |
Dec 11 05:10:11.320 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 05:10:11.320 INFO [stderr] 
Dec 11 05:10:11.378 INFO [stderr] warning: variable does not need to be mutable
Dec 11 05:10:11.378 INFO [stderr]   --> src/server.rs:37:22
Dec 11 05:10:11.378 INFO [stderr]    |
Dec 11 05:10:11.378 INFO [stderr] 37 |     fn handle_client(mut stream: Arc<Mutex<TcpStream>>) {
Dec 11 05:10:11.378 INFO [stderr]    |                      ----^^^^^^
Dec 11 05:10:11.378 INFO [stderr]    |                      |
Dec 11 05:10:11.378 INFO [stderr]    |                      help: remove this `mut`
Dec 11 05:10:11.378 INFO [stderr]    |
Dec 11 05:10:11.378 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 05:10:11.378 INFO [stderr] 
Dec 11 05:10:11.379 INFO [stderr] warning: field is never used: `address`
Dec 11 05:10:11.379 INFO [stderr]  --> src/server.rs:6:5
Dec 11 05:10:11.379 INFO [stderr]   |
Dec 11 05:10:11.379 INFO [stderr] 6 |     address: String,
Dec 11 05:10:11.379 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 05:10:11.379 INFO [stderr]   |
Dec 11 05:10:11.379 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 05:10:11.379 INFO [stderr] 
Dec 11 05:10:11.379 INFO [stderr] warning: field is never used: `messages`
Dec 11 05:10:11.379 INFO [stderr]  --> src/server.rs:9:5
Dec 11 05:10:11.379 INFO [stderr]   |
Dec 11 05:10:11.379 INFO [stderr] 9 |     messages: Vec<String>
Dec 11 05:10:11.379 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:10:11.379 INFO [stderr] 
Dec 11 05:10:11.379 INFO [stderr] warning: field is never used: `address`
Dec 11 05:10:11.379 INFO [stderr]  --> src/client.rs:7:5
Dec 11 05:10:11.379 INFO [stderr]   |
Dec 11 05:10:11.379 INFO [stderr] 7 |     address: String,
Dec 11 05:10:11.379 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 05:10:11.379 INFO [stderr] 
Dec 11 05:10:11.388 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:10:11.388 INFO [stderr]   --> src/server.rs:39:9
Dec 11 05:10:11.388 INFO [stderr]    |
Dec 11 05:10:11.388 INFO [stderr] 39 |         stream.lock().unwrap().read_to_string(&mut buffer);
Dec 11 05:10:11.388 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:10:11.388 INFO [stderr]    |
Dec 11 05:10:11.388 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 05:10:11.392 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:10:11.392 INFO [stderr] 
Dec 11 05:10:11.392 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:10:11.392 INFO [stderr]   --> src/client.rs:25:9
Dec 11 05:10:11.392 INFO [stderr]    |
Dec 11 05:10:11.392 INFO [stderr] 25 |         self.stream.write(String::from(message).as_bytes());
Dec 11 05:10:11.392 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:10:11.392 INFO [stderr]    |
Dec 11 05:10:11.392 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:10:11.392 INFO [stderr] 
Dec 11 05:10:11.437 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
Dec 11 05:10:11.439 INFO [stderr] su: No module specific data is present
Dec 11 05:10:12.316 INFO running `"docker" "inspect" "5acf7f0700655b3ef5cb81c818f23f2934860d61c056d0194259f8edf9f088d8"`
Dec 11 05:10:12.714 INFO running `"docker" "rm" "-f" "5acf7f0700655b3ef5cb81c818f23f2934860d61c056d0194259f8edf9f088d8"`
Dec 11 05:10:13.068 INFO [stdout] 5acf7f0700655b3ef5cb81c818f23f2934860d61c056d0194259f8edf9f088d8