Oct 31 17:10:12.584 INFO checking zerovolts/rust-chat against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 17:10:12.584 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-1/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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"`
Oct 31 17:10:13.052 INFO blam! 06c113e4ff3c1d077108d56e3e13b5be5c96809fd5aa99376758240e9c83fdd0
Oct 31 17:10:13.058 INFO running `"docker" "start" "-a" "06c113e4ff3c1d077108d56e3e13b5be5c96809fd5aa99376758240e9c83fdd0"`
Oct 31 17:10:14.625 INFO kablam! usermod: no changes
Oct 31 17:10:14.684 INFO kablam!     Checking rust-chat v0.1.0 (/source)
Oct 31 17:10:14.926 INFO kablam! warning: unused import: `Write`
Oct 31 17:10:14.926 INFO kablam!  --> src/server.rs:3:21
Oct 31 17:10:14.926 INFO kablam!   |
Oct 31 17:10:14.926 INFO kablam! 3 | use std::io::{Read, Write};
Oct 31 17:10:14.926 INFO kablam!   |                     ^^^^^
Oct 31 17:10:14.926 INFO kablam!   |
Oct 31 17:10:14.926 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 31 17:10:14.926 INFO kablam! 
Oct 31 17:10:14.926 INFO kablam! warning: unused import: `TcpListener`
Oct 31 17:10:14.926 INFO kablam!  --> src/client.rs:1:16
Oct 31 17:10:14.926 INFO kablam!   |
Oct 31 17:10:14.926 INFO kablam! 1 | use std::net::{TcpListener, TcpStream};
Oct 31 17:10:14.926 INFO kablam!   |                ^^^^^^^^^^^
Oct 31 17:10:14.926 INFO kablam! 
Oct 31 17:10:14.926 INFO kablam! warning: unused imports: `Arc`, `Mutex`
Oct 31 17:10:14.926 INFO kablam!  --> src/client.rs:2:17
Oct 31 17:10:14.926 INFO kablam!   |
Oct 31 17:10:14.926 INFO kablam! 2 | use std::sync::{Arc, Mutex};
Oct 31 17:10:14.926 INFO kablam!   |                 ^^^  ^^^^^
Oct 31 17:10:14.926 INFO kablam! 
Oct 31 17:10:14.929 INFO kablam! warning: unused import: `Read`
Oct 31 17:10:14.929 INFO kablam!  --> src/client.rs:3:15
Oct 31 17:10:14.929 INFO kablam!   |
Oct 31 17:10:14.929 INFO kablam! 3 | use std::io::{Read, Write};
Oct 31 17:10:14.929 INFO kablam!   |               ^^^^
Oct 31 17:10:14.929 INFO kablam! 
Oct 31 17:10:14.929 INFO kablam! warning: unused imports: `thread`, `time`
Oct 31 17:10:14.929 INFO kablam!  --> src/client.rs:4:11
Oct 31 17:10:14.929 INFO kablam!   |
Oct 31 17:10:14.929 INFO kablam! 4 | use std::{thread, time};
Oct 31 17:10:14.929 INFO kablam!   |           ^^^^^^  ^^^^
Oct 31 17:10:14.929 INFO kablam! 
Oct 31 17:10:14.949 INFO kablam! warning: unused import: `Write`
Oct 31 17:10:14.949 INFO kablam!  --> src/server.rs:3:21
Oct 31 17:10:14.949 INFO kablam!   |
Oct 31 17:10:14.949 INFO kablam! 3 | use std::io::{Read, Write};
Oct 31 17:10:14.949 INFO kablam!   |                     ^^^^^
Oct 31 17:10:14.949 INFO kablam!   |
Oct 31 17:10:14.949 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 31 17:10:14.949 INFO kablam! 
Oct 31 17:10:14.949 INFO kablam! warning: unused import: `TcpListener`
Oct 31 17:10:14.949 INFO kablam!  --> src/client.rs:1:16
Oct 31 17:10:14.949 INFO kablam!   |
Oct 31 17:10:14.949 INFO kablam! 1 | use std::net::{TcpListener, TcpStream};
Oct 31 17:10:14.949 INFO kablam!   |                ^^^^^^^^^^^
Oct 31 17:10:14.949 INFO kablam! 
Oct 31 17:10:14.949 INFO kablam! warning: unused imports: `Arc`, `Mutex`
Oct 31 17:10:14.949 INFO kablam!  --> src/client.rs:2:17
Oct 31 17:10:14.949 INFO kablam!   |
Oct 31 17:10:14.949 INFO kablam! 2 | use std::sync::{Arc, Mutex};
Oct 31 17:10:14.949 INFO kablam!   |                 ^^^  ^^^^^
Oct 31 17:10:14.949 INFO kablam! 
Oct 31 17:10:14.949 INFO kablam! warning: unused import: `Read`
Oct 31 17:10:14.949 INFO kablam!  --> src/client.rs:3:15
Oct 31 17:10:14.949 INFO kablam!   |
Oct 31 17:10:14.949 INFO kablam! 3 | use std::io::{Read, Write};
Oct 31 17:10:14.949 INFO kablam!   |               ^^^^
Oct 31 17:10:14.949 INFO kablam! 
Oct 31 17:10:14.949 INFO kablam! warning: unused imports: `thread`, `time`
Oct 31 17:10:14.949 INFO kablam!  --> src/client.rs:4:11
Oct 31 17:10:14.949 INFO kablam!   |
Oct 31 17:10:14.949 INFO kablam! 4 | use std::{thread, time};
Oct 31 17:10:14.949 INFO kablam!   |           ^^^^^^  ^^^^
Oct 31 17:10:14.949 INFO kablam! 
Oct 31 17:10:14.988 INFO kablam! warning: unused variable: `e`
Oct 31 17:10:14.988 INFO kablam!   --> src/server.rs:32:21
Oct 31 17:10:14.988 INFO kablam!    |
Oct 31 17:10:14.988 INFO kablam! 32 |                 Err(e) => ()
Oct 31 17:10:14.988 INFO kablam!    |                     ^ help: consider using `_e` instead
Oct 31 17:10:14.988 INFO kablam!    |
Oct 31 17:10:14.988 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 31 17:10:14.988 INFO kablam! 
Oct 31 17:10:15.011 INFO kablam! warning: variable does not need to be mutable
Oct 31 17:10:15.011 INFO kablam!   --> src/server.rs:37:22
Oct 31 17:10:15.011 INFO kablam!    |
Oct 31 17:10:15.011 INFO kablam! 37 |     fn handle_client(mut stream: Arc<Mutex<TcpStream>>) {
Oct 31 17:10:15.011 INFO kablam!    |                      ----^^^^^^
Oct 31 17:10:15.011 INFO kablam!    |                      |
Oct 31 17:10:15.011 INFO kablam!    |                      help: remove this `mut`
Oct 31 17:10:15.011 INFO kablam!    |
Oct 31 17:10:15.011 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 31 17:10:15.011 INFO kablam! 
Oct 31 17:10:15.011 INFO kablam! warning: unused variable: `e`
Oct 31 17:10:15.011 INFO kablam!   --> src/server.rs:32:21
Oct 31 17:10:15.011 INFO kablam!    |
Oct 31 17:10:15.011 INFO kablam! 32 |                 Err(e) => ()
Oct 31 17:10:15.011 INFO kablam!    |                     ^ help: consider using `_e` instead
Oct 31 17:10:15.011 INFO kablam!    |
Oct 31 17:10:15.011 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 31 17:10:15.011 INFO kablam! 
Oct 31 17:10:15.011 INFO kablam! warning: field is never used: `address`
Oct 31 17:10:15.011 INFO kablam!  --> src/server.rs:6:5
Oct 31 17:10:15.011 INFO kablam!   |
Oct 31 17:10:15.011 INFO kablam! 6 |     address: String,
Oct 31 17:10:15.011 INFO kablam!   |     ^^^^^^^^^^^^^^^
Oct 31 17:10:15.011 INFO kablam!   |
Oct 31 17:10:15.011 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 31 17:10:15.011 INFO kablam! 
Oct 31 17:10:15.011 INFO kablam! warning: field is never used: `messages`
Oct 31 17:10:15.011 INFO kablam!  --> src/server.rs:9:5
Oct 31 17:10:15.011 INFO kablam!   |
Oct 31 17:10:15.011 INFO kablam! 9 |     messages: Vec<String>
Oct 31 17:10:15.011 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:10:15.012 INFO kablam! 
Oct 31 17:10:15.012 INFO kablam! warning: field is never used: `address`
Oct 31 17:10:15.012 INFO kablam!  --> src/client.rs:7:5
Oct 31 17:10:15.012 INFO kablam!   |
Oct 31 17:10:15.012 INFO kablam! 7 |     address: String,
Oct 31 17:10:15.012 INFO kablam!   |     ^^^^^^^^^^^^^^^
Oct 31 17:10:15.012 INFO kablam! 
Oct 31 17:10:15.024 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:10:15.024 INFO kablam!   --> src/server.rs:39:9
Oct 31 17:10:15.024 INFO kablam!    |
Oct 31 17:10:15.024 INFO kablam! 39 |         stream.lock().unwrap().read_to_string(&mut buffer);
Oct 31 17:10:15.024 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:10:15.024 INFO kablam!    |
Oct 31 17:10:15.024 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 31 17:10:15.024 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:10:15.024 INFO kablam! 
Oct 31 17:10:15.024 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:10:15.024 INFO kablam!   --> src/client.rs:25:9
Oct 31 17:10:15.024 INFO kablam!    |
Oct 31 17:10:15.024 INFO kablam! 25 |         self.stream.write(String::from(message).as_bytes());
Oct 31 17:10:15.024 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:10:15.024 INFO kablam!    |
Oct 31 17:10:15.024 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:10:15.024 INFO kablam! 
Oct 31 17:10:15.048 INFO kablam! warning: variable does not need to be mutable
Oct 31 17:10:15.048 INFO kablam!   --> src/server.rs:37:22
Oct 31 17:10:15.048 INFO kablam!    |
Oct 31 17:10:15.048 INFO kablam! 37 |     fn handle_client(mut stream: Arc<Mutex<TcpStream>>) {
Oct 31 17:10:15.048 INFO kablam!    |                      ----^^^^^^
Oct 31 17:10:15.048 INFO kablam!    |                      |
Oct 31 17:10:15.048 INFO kablam!    |                      help: remove this `mut`
Oct 31 17:10:15.048 INFO kablam!    |
Oct 31 17:10:15.048 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 31 17:10:15.048 INFO kablam! 
Oct 31 17:10:15.064 INFO kablam! warning: field is never used: `address`
Oct 31 17:10:15.064 INFO kablam!  --> src/server.rs:6:5
Oct 31 17:10:15.064 INFO kablam!   |
Oct 31 17:10:15.064 INFO kablam! 6 |     address: String,
Oct 31 17:10:15.064 INFO kablam!   |     ^^^^^^^^^^^^^^^
Oct 31 17:10:15.064 INFO kablam!   |
Oct 31 17:10:15.064 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 31 17:10:15.064 INFO kablam! 
Oct 31 17:10:15.064 INFO kablam! warning: field is never used: `messages`
Oct 31 17:10:15.064 INFO kablam!  --> src/server.rs:9:5
Oct 31 17:10:15.064 INFO kablam!   |
Oct 31 17:10:15.064 INFO kablam! 9 |     messages: Vec<String>
Oct 31 17:10:15.064 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:10:15.064 INFO kablam! 
Oct 31 17:10:15.064 INFO kablam! warning: field is never used: `address`
Oct 31 17:10:15.064 INFO kablam!  --> src/client.rs:7:5
Oct 31 17:10:15.064 INFO kablam!   |
Oct 31 17:10:15.064 INFO kablam! 7 |     address: String,
Oct 31 17:10:15.064 INFO kablam!   |     ^^^^^^^^^^^^^^^
Oct 31 17:10:15.064 INFO kablam! 
Oct 31 17:10:15.084 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:10:15.084 INFO kablam!   --> src/server.rs:39:9
Oct 31 17:10:15.084 INFO kablam!    |
Oct 31 17:10:15.084 INFO kablam! 39 |         stream.lock().unwrap().read_to_string(&mut buffer);
Oct 31 17:10:15.084 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:10:15.084 INFO kablam!    |
Oct 31 17:10:15.084 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 31 17:10:15.084 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:10:15.084 INFO kablam! 
Oct 31 17:10:15.092 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 17:10:15.092 INFO kablam!   --> src/client.rs:25:9
Oct 31 17:10:15.092 INFO kablam!    |
Oct 31 17:10:15.092 INFO kablam! 25 |         self.stream.write(String::from(message).as_bytes());
Oct 31 17:10:15.092 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 17:10:15.092 INFO kablam!    |
Oct 31 17:10:15.092 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 17:10:15.092 INFO kablam! 
Oct 31 17:10:15.120 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Oct 31 17:10:15.125 INFO kablam! su: No module specific data is present
Oct 31 17:10:15.748 INFO running `"docker" "rm" "-f" "06c113e4ff3c1d077108d56e3e13b5be5c96809fd5aa99376758240e9c83fdd0"`
Oct 31 17:10:16.121 INFO blam! 06c113e4ff3c1d077108d56e3e13b5be5c96809fd5aa99376758240e9c83fdd0