Nov 27 16:05:56.510 INFO checking zerovolts/rust-chat against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 16:05:56.510 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 16:05:57.039 INFO [stdout] b3983f824ab93744489c0f2266db87ac51973c8afd25eee90d995be572057284
Nov 27 16:05:57.042 INFO running `"docker" "start" "-a" "b3983f824ab93744489c0f2266db87ac51973c8afd25eee90d995be572057284"`
Nov 27 16:05:58.204 INFO [stderr] usermod: no changes
Nov 27 16:05:58.264 INFO [stderr]     Checking rust-chat v0.1.0 (/source)
Nov 27 16:05:58.433 INFO [stderr] warning: unused import: `Write`
Nov 27 16:05:58.433 INFO [stderr]  --> src/server.rs:3:21
Nov 27 16:05:58.433 INFO [stderr]   |
Nov 27 16:05:58.433 INFO [stderr] 3 | use std::io::{Read, Write};
Nov 27 16:05:58.433 INFO [stderr]   |                     ^^^^^
Nov 27 16:05:58.433 INFO [stderr]   |
Nov 27 16:05:58.433 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 16:05:58.433 INFO [stderr] 
Nov 27 16:05:58.433 INFO [stderr] warning: unused import: `TcpListener`
Nov 27 16:05:58.433 INFO [stderr]  --> src/client.rs:1:16
Nov 27 16:05:58.433 INFO [stderr]   |
Nov 27 16:05:58.433 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream};
Nov 27 16:05:58.433 INFO [stderr]   |                ^^^^^^^^^^^
Nov 27 16:05:58.433 INFO [stderr] 
Nov 27 16:05:58.433 INFO [stderr] warning: unused imports: `Arc`, `Mutex`
Nov 27 16:05:58.433 INFO [stderr]  --> src/client.rs:2:17
Nov 27 16:05:58.433 INFO [stderr]   |
Nov 27 16:05:58.433 INFO [stderr] 2 | use std::sync::{Arc, Mutex};
Nov 27 16:05:58.433 INFO [stderr]   |                 ^^^  ^^^^^
Nov 27 16:05:58.433 INFO [stderr] 
Nov 27 16:05:58.433 INFO [stderr] warning: unused import: `Read`
Nov 27 16:05:58.433 INFO [stderr]  --> src/client.rs:3:15
Nov 27 16:05:58.433 INFO [stderr]   |
Nov 27 16:05:58.433 INFO [stderr] 3 | use std::io::{Read, Write};
Nov 27 16:05:58.433 INFO [stderr]   |               ^^^^
Nov 27 16:05:58.433 INFO [stderr] 
Nov 27 16:05:58.433 INFO [stderr] warning: unused imports: `thread`, `time`
Nov 27 16:05:58.433 INFO [stderr]  --> src/client.rs:4:11
Nov 27 16:05:58.433 INFO [stderr]   |
Nov 27 16:05:58.433 INFO [stderr] 4 | use std::{thread, time};
Nov 27 16:05:58.433 INFO [stderr]   |           ^^^^^^  ^^^^
Nov 27 16:05:58.433 INFO [stderr] 
Nov 27 16:05:58.512 INFO [stderr] warning: unused import: `Write`
Nov 27 16:05:58.512 INFO [stderr]  --> src/server.rs:3:21
Nov 27 16:05:58.513 INFO [stderr]   |
Nov 27 16:05:58.513 INFO [stderr] 3 | use std::io::{Read, Write};
Nov 27 16:05:58.513 INFO [stderr]   |                     ^^^^^
Nov 27 16:05:58.513 INFO [stderr]   |
Nov 27 16:05:58.513 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 16:05:58.513 INFO [stderr] 
Nov 27 16:05:58.513 INFO [stderr] warning: unused import: `TcpListener`
Nov 27 16:05:58.513 INFO [stderr]  --> src/client.rs:1:16
Nov 27 16:05:58.513 INFO [stderr]   |
Nov 27 16:05:58.513 INFO [stderr] 1 | use std::net::{TcpListener, TcpStream};
Nov 27 16:05:58.513 INFO [stderr]   |                ^^^^^^^^^^^
Nov 27 16:05:58.513 INFO [stderr] 
Nov 27 16:05:58.513 INFO [stderr] warning: unused imports: `Arc`, `Mutex`
Nov 27 16:05:58.513 INFO [stderr]  --> src/client.rs:2:17
Nov 27 16:05:58.513 INFO [stderr]   |
Nov 27 16:05:58.513 INFO [stderr] 2 | use std::sync::{Arc, Mutex};
Nov 27 16:05:58.513 INFO [stderr]   |                 ^^^  ^^^^^
Nov 27 16:05:58.513 INFO [stderr] 
Nov 27 16:05:58.513 INFO [stderr] warning: unused import: `Read`
Nov 27 16:05:58.513 INFO [stderr]  --> src/client.rs:3:15
Nov 27 16:05:58.513 INFO [stderr]   |
Nov 27 16:05:58.513 INFO [stderr] 3 | use std::io::{Read, Write};
Nov 27 16:05:58.513 INFO [stderr]   |               ^^^^
Nov 27 16:05:58.514 INFO [stderr] 
Nov 27 16:05:58.514 INFO [stderr] warning: unused imports: `thread`, `time`
Nov 27 16:05:58.514 INFO [stderr]  --> src/client.rs:4:11
Nov 27 16:05:58.514 INFO [stderr]   |
Nov 27 16:05:58.514 INFO [stderr] 4 | use std::{thread, time};
Nov 27 16:05:58.514 INFO [stderr]   |           ^^^^^^  ^^^^
Nov 27 16:05:58.514 INFO [stderr] 
Nov 27 16:05:58.529 INFO [stderr] warning: unused variable: `e`
Nov 27 16:05:58.529 INFO [stderr]   --> src/server.rs:32:21
Nov 27 16:05:58.529 INFO [stderr]    |
Nov 27 16:05:58.529 INFO [stderr] 32 |                 Err(e) => ()
Nov 27 16:05:58.529 INFO [stderr]    |                     ^ help: consider using `_e` instead
Nov 27 16:05:58.529 INFO [stderr]    |
Nov 27 16:05:58.529 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 16:05:58.529 INFO [stderr] 
Nov 27 16:05:58.563 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:05:58.563 INFO [stderr]   --> src/server.rs:37:22
Nov 27 16:05:58.563 INFO [stderr]    |
Nov 27 16:05:58.563 INFO [stderr] 37 |     fn handle_client(mut stream: Arc<Mutex<TcpStream>>) {
Nov 27 16:05:58.563 INFO [stderr]    |                      ----^^^^^^
Nov 27 16:05:58.563 INFO [stderr]    |                      |
Nov 27 16:05:58.563 INFO [stderr]    |                      help: remove this `mut`
Nov 27 16:05:58.563 INFO [stderr]    |
Nov 27 16:05:58.563 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 16:05:58.563 INFO [stderr] 
Nov 27 16:05:58.563 INFO [stderr] warning: field is never used: `address`
Nov 27 16:05:58.564 INFO [stderr]  --> src/server.rs:6:5
Nov 27 16:05:58.564 INFO [stderr]   |
Nov 27 16:05:58.564 INFO [stderr] 6 |     address: String,
Nov 27 16:05:58.564 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 27 16:05:58.564 INFO [stderr]   |
Nov 27 16:05:58.564 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 16:05:58.564 INFO [stderr] 
Nov 27 16:05:58.564 INFO [stderr] warning: field is never used: `messages`
Nov 27 16:05:58.564 INFO [stderr]  --> src/server.rs:9:5
Nov 27 16:05:58.564 INFO [stderr]   |
Nov 27 16:05:58.564 INFO [stderr] 9 |     messages: Vec<String>
Nov 27 16:05:58.564 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:58.564 INFO [stderr] 
Nov 27 16:05:58.564 INFO [stderr] warning: field is never used: `address`
Nov 27 16:05:58.564 INFO [stderr]  --> src/client.rs:7:5
Nov 27 16:05:58.564 INFO [stderr]   |
Nov 27 16:05:58.564 INFO [stderr] 7 |     address: String,
Nov 27 16:05:58.564 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 27 16:05:58.564 INFO [stderr] 
Nov 27 16:05:58.564 INFO [stderr] warning: unused variable: `e`
Nov 27 16:05:58.564 INFO [stderr]   --> src/server.rs:32:21
Nov 27 16:05:58.564 INFO [stderr]    |
Nov 27 16:05:58.565 INFO [stderr] 32 |                 Err(e) => ()
Nov 27 16:05:58.565 INFO [stderr]    |                     ^ help: consider using `_e` instead
Nov 27 16:05:58.565 INFO [stderr]    |
Nov 27 16:05:58.565 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 16:05:58.565 INFO [stderr] 
Nov 27 16:05:58.574 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:58.574 INFO [stderr]   --> src/server.rs:39:9
Nov 27 16:05:58.574 INFO [stderr]    |
Nov 27 16:05:58.574 INFO [stderr] 39 |         stream.lock().unwrap().read_to_string(&mut buffer);
Nov 27 16:05:58.574 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:58.574 INFO [stderr]    |
Nov 27 16:05:58.574 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 16:05:58.574 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:58.574 INFO [stderr] 
Nov 27 16:05:58.584 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:58.584 INFO [stderr]   --> src/client.rs:25:9
Nov 27 16:05:58.584 INFO [stderr]    |
Nov 27 16:05:58.584 INFO [stderr] 25 |         self.stream.write(String::from(message).as_bytes());
Nov 27 16:05:58.584 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:58.584 INFO [stderr]    |
Nov 27 16:05:58.584 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:58.584 INFO [stderr] 
Nov 27 16:05:58.585 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:05:58.585 INFO [stderr]   --> src/server.rs:37:22
Nov 27 16:05:58.585 INFO [stderr]    |
Nov 27 16:05:58.585 INFO [stderr] 37 |     fn handle_client(mut stream: Arc<Mutex<TcpStream>>) {
Nov 27 16:05:58.585 INFO [stderr]    |                      ----^^^^^^
Nov 27 16:05:58.585 INFO [stderr]    |                      |
Nov 27 16:05:58.585 INFO [stderr]    |                      help: remove this `mut`
Nov 27 16:05:58.585 INFO [stderr]    |
Nov 27 16:05:58.585 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 16:05:58.585 INFO [stderr] 
Nov 27 16:05:58.596 INFO [stderr] warning: field is never used: `address`
Nov 27 16:05:58.596 INFO [stderr]  --> src/server.rs:6:5
Nov 27 16:05:58.596 INFO [stderr]   |
Nov 27 16:05:58.596 INFO [stderr] 6 |     address: String,
Nov 27 16:05:58.596 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 27 16:05:58.596 INFO [stderr]   |
Nov 27 16:05:58.597 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 16:05:58.597 INFO [stderr] 
Nov 27 16:05:58.597 INFO [stderr] warning: field is never used: `messages`
Nov 27 16:05:58.597 INFO [stderr]  --> src/server.rs:9:5
Nov 27 16:05:58.597 INFO [stderr]   |
Nov 27 16:05:58.597 INFO [stderr] 9 |     messages: Vec<String>
Nov 27 16:05:58.597 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:58.597 INFO [stderr] 
Nov 27 16:05:58.597 INFO [stderr] warning: field is never used: `address`
Nov 27 16:05:58.597 INFO [stderr]  --> src/client.rs:7:5
Nov 27 16:05:58.597 INFO [stderr]   |
Nov 27 16:05:58.597 INFO [stderr] 7 |     address: String,
Nov 27 16:05:58.597 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 27 16:05:58.597 INFO [stderr] 
Nov 27 16:05:58.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:58.597 INFO [stderr]   --> src/server.rs:39:9
Nov 27 16:05:58.597 INFO [stderr]    |
Nov 27 16:05:58.597 INFO [stderr] 39 |         stream.lock().unwrap().read_to_string(&mut buffer);
Nov 27 16:05:58.597 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:58.597 INFO [stderr]    |
Nov 27 16:05:58.597 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 16:05:58.597 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:58.597 INFO [stderr] 
Nov 27 16:05:58.597 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:58.598 INFO [stderr]   --> src/client.rs:25:9
Nov 27 16:05:58.598 INFO [stderr]    |
Nov 27 16:05:58.598 INFO [stderr] 25 |         self.stream.write(String::from(message).as_bytes());
Nov 27 16:05:58.598 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:58.598 INFO [stderr]    |
Nov 27 16:05:58.598 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:58.598 INFO [stderr] 
Nov 27 16:05:58.636 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Nov 27 16:05:58.641 INFO [stderr] su: No module specific data is present
Nov 27 16:05:59.241 INFO running `"docker" "inspect" "b3983f824ab93744489c0f2266db87ac51973c8afd25eee90d995be572057284"`
Nov 27 16:05:59.541 INFO running `"docker" "rm" "-f" "b3983f824ab93744489c0f2266db87ac51973c8afd25eee90d995be572057284"`
Nov 27 16:05:59.932 INFO [stdout] b3983f824ab93744489c0f2266db87ac51973c8afd25eee90d995be572057284