Nov 28 10:58:33.935 INFO checking StephenAshmore/synth against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 10:58:33.936 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 28 10:58:34.374 INFO [stdout] a24bc7e7c00ffdf3acba644509bd0faf8c581731a14f1332a70344423e81e605
Nov 28 10:58:34.381 INFO running `"docker" "start" "-a" "a24bc7e7c00ffdf3acba644509bd0faf8c581731a14f1332a70344423e81e605"`
Nov 28 10:58:36.095 INFO [stderr] usermod: no changes
Nov 28 10:58:36.245 INFO [stderr]     Checking terminal_size v0.1.7
Nov 28 10:58:36.774 INFO [stderr]     Checking synth v0.1.0 (/source)
Nov 28 10:58:37.352 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Nov 28 10:58:37.352 INFO [stderr]  --> src/main.rs:3:23
Nov 28 10:58:37.352 INFO [stderr]   |
Nov 28 10:58:37.352 INFO [stderr] 3 | use std::sync::mpsc::{Sender, Receiver};
Nov 28 10:58:37.352 INFO [stderr]   |                       ^^^^^^  ^^^^^^^^
Nov 28 10:58:37.352 INFO [stderr]   |
Nov 28 10:58:37.352 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 10:58:37.352 INFO [stderr] 
Nov 28 10:58:37.352 INFO [stderr] warning: unused import: `std::sync::mpsc`
Nov 28 10:58:37.352 INFO [stderr]  --> src/cli/interface.rs:3:5
Nov 28 10:58:37.352 INFO [stderr]   |
Nov 28 10:58:37.352 INFO [stderr] 3 | use std::sync::mpsc;
Nov 28 10:58:37.352 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 28 10:58:37.352 INFO [stderr] 
Nov 28 10:58:37.352 INFO [stderr] warning: unused import: `BufRead`
Nov 28 10:58:37.352 INFO [stderr]  --> src/cli/display.rs:1:28
Nov 28 10:58:37.352 INFO [stderr]   |
Nov 28 10:58:37.352 INFO [stderr] 1 | use std::io::{self, Write, BufRead};
Nov 28 10:58:37.352 INFO [stderr]   |                            ^^^^^^^
Nov 28 10:58:37.352 INFO [stderr] 
Nov 28 10:58:37.402 INFO [stderr] warning: unused variable: `error`
Nov 28 10:58:37.402 INFO [stderr]   --> src/cli/display.rs:41:21
Nov 28 10:58:37.402 INFO [stderr]    |
Nov 28 10:58:37.402 INFO [stderr] 41 |                 Err(error) => String::from(""),
Nov 28 10:58:37.402 INFO [stderr]    |                     ^^^^^ help: consider using `_error` instead
Nov 28 10:58:37.402 INFO [stderr]    |
Nov 28 10:58:37.402 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:58:37.402 INFO [stderr] 
Nov 28 10:58:37.402 INFO [stderr] warning: unused variable: `buffer_pointer`
Nov 28 10:58:37.402 INFO [stderr]   --> src/cli/display.rs:57:17
Nov 28 10:58:37.402 INFO [stderr]    |
Nov 28 10:58:37.402 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Nov 28 10:58:37.402 INFO [stderr]    |                 ^^^^^^^^^^^^^^ help: consider using `_buffer_pointer` instead
Nov 28 10:58:37.402 INFO [stderr] 
Nov 28 10:58:37.404 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:58:37.404 INFO [stderr]   --> src/main.rs:12:9
Nov 28 10:58:37.404 INFO [stderr]    |
Nov 28 10:58:37.404 INFO [stderr] 12 |     let mut user_finished = false;
Nov 28 10:58:37.404 INFO [stderr]    |         ----^^^^^^^^^^^^^
Nov 28 10:58:37.404 INFO [stderr]    |         |
Nov 28 10:58:37.404 INFO [stderr]    |         help: remove this `mut`
Nov 28 10:58:37.404 INFO [stderr]    |
Nov 28 10:58:37.404 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 10:58:37.404 INFO [stderr] 
Nov 28 10:58:37.416 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:58:37.416 INFO [stderr]   --> src/cli/display.rs:57:13
Nov 28 10:58:37.416 INFO [stderr]    |
Nov 28 10:58:37.416 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Nov 28 10:58:37.416 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Nov 28 10:58:37.416 INFO [stderr]    |             |
Nov 28 10:58:37.416 INFO [stderr]    |             help: remove this `mut`
Nov 28 10:58:37.416 INFO [stderr] 
Nov 28 10:58:37.420 INFO [stderr] warning: field is never used: `m_sender`
Nov 28 10:58:37.420 INFO [stderr]  --> src/cli/interface.rs:7:5
Nov 28 10:58:37.420 INFO [stderr]   |
Nov 28 10:58:37.420 INFO [stderr] 7 |     m_sender: Sender<String>,
Nov 28 10:58:37.420 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:58:37.420 INFO [stderr]   |
Nov 28 10:58:37.420 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 10:58:37.420 INFO [stderr] 
Nov 28 10:58:37.428 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:58:37.428 INFO [stderr]   --> src/cli/display.rs:93:9
Nov 28 10:58:37.428 INFO [stderr]    |
Nov 28 10:58:37.428 INFO [stderr] 93 |         io::stdout().flush();
Nov 28 10:58:37.428 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:58:37.428 INFO [stderr]    |
Nov 28 10:58:37.428 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 10:58:37.428 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:58:37.428 INFO [stderr] 
Nov 28 10:58:37.628 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Nov 28 10:58:37.628 INFO [stderr]  --> src/main.rs:3:23
Nov 28 10:58:37.628 INFO [stderr]   |
Nov 28 10:58:37.628 INFO [stderr] 3 | use std::sync::mpsc::{Sender, Receiver};
Nov 28 10:58:37.628 INFO [stderr]   |                       ^^^^^^  ^^^^^^^^
Nov 28 10:58:37.628 INFO [stderr]   |
Nov 28 10:58:37.628 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 10:58:37.628 INFO [stderr] 
Nov 28 10:58:37.628 INFO [stderr] warning: unused import: `std::sync::mpsc`
Nov 28 10:58:37.628 INFO [stderr]  --> src/cli/interface.rs:3:5
Nov 28 10:58:37.628 INFO [stderr]   |
Nov 28 10:58:37.628 INFO [stderr] 3 | use std::sync::mpsc;
Nov 28 10:58:37.628 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 28 10:58:37.628 INFO [stderr] 
Nov 28 10:58:37.628 INFO [stderr] warning: unused import: `BufRead`
Nov 28 10:58:37.628 INFO [stderr]  --> src/cli/display.rs:1:28
Nov 28 10:58:37.628 INFO [stderr]   |
Nov 28 10:58:37.628 INFO [stderr] 1 | use std::io::{self, Write, BufRead};
Nov 28 10:58:37.628 INFO [stderr]   |                            ^^^^^^^
Nov 28 10:58:37.628 INFO [stderr] 
Nov 28 10:58:37.712 INFO [stderr] warning: unused variable: `error`
Nov 28 10:58:37.712 INFO [stderr]   --> src/cli/display.rs:41:21
Nov 28 10:58:37.712 INFO [stderr]    |
Nov 28 10:58:37.712 INFO [stderr] 41 |                 Err(error) => String::from(""),
Nov 28 10:58:37.712 INFO [stderr]    |                     ^^^^^ help: consider using `_error` instead
Nov 28 10:58:37.712 INFO [stderr]    |
Nov 28 10:58:37.712 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:58:37.712 INFO [stderr] 
Nov 28 10:58:37.712 INFO [stderr] warning: unused variable: `buffer_pointer`
Nov 28 10:58:37.712 INFO [stderr]   --> src/cli/display.rs:57:17
Nov 28 10:58:37.712 INFO [stderr]    |
Nov 28 10:58:37.712 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Nov 28 10:58:37.712 INFO [stderr]    |                 ^^^^^^^^^^^^^^ help: consider using `_buffer_pointer` instead
Nov 28 10:58:37.712 INFO [stderr] 
Nov 28 10:58:37.720 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:58:37.720 INFO [stderr]   --> src/main.rs:12:9
Nov 28 10:58:37.720 INFO [stderr]    |
Nov 28 10:58:37.720 INFO [stderr] 12 |     let mut user_finished = false;
Nov 28 10:58:37.720 INFO [stderr]    |         ----^^^^^^^^^^^^^
Nov 28 10:58:37.720 INFO [stderr]    |         |
Nov 28 10:58:37.720 INFO [stderr]    |         help: remove this `mut`
Nov 28 10:58:37.720 INFO [stderr]    |
Nov 28 10:58:37.720 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 10:58:37.720 INFO [stderr] 
Nov 28 10:58:37.740 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:58:37.740 INFO [stderr]   --> src/cli/display.rs:57:13
Nov 28 10:58:37.740 INFO [stderr]    |
Nov 28 10:58:37.740 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Nov 28 10:58:37.740 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Nov 28 10:58:37.740 INFO [stderr]    |             |
Nov 28 10:58:37.740 INFO [stderr]    |             help: remove this `mut`
Nov 28 10:58:37.740 INFO [stderr] 
Nov 28 10:58:37.752 INFO [stderr] warning: field is never used: `m_sender`
Nov 28 10:58:37.752 INFO [stderr]  --> src/cli/interface.rs:7:5
Nov 28 10:58:37.752 INFO [stderr]   |
Nov 28 10:58:37.752 INFO [stderr] 7 |     m_sender: Sender<String>,
Nov 28 10:58:37.752 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:58:37.752 INFO [stderr]   |
Nov 28 10:58:37.752 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 10:58:37.752 INFO [stderr] 
Nov 28 10:58:37.764 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:58:37.764 INFO [stderr]   --> src/cli/display.rs:93:9
Nov 28 10:58:37.764 INFO [stderr]    |
Nov 28 10:58:37.764 INFO [stderr] 93 |         io::stdout().flush();
Nov 28 10:58:37.764 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:58:37.764 INFO [stderr]    |
Nov 28 10:58:37.764 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 10:58:37.764 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:58:37.764 INFO [stderr] 
Nov 28 10:58:37.788 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
Nov 28 10:58:37.805 INFO [stderr] su: No module specific data is present
Nov 28 10:58:38.737 INFO running `"docker" "inspect" "a24bc7e7c00ffdf3acba644509bd0faf8c581731a14f1332a70344423e81e605"`
Nov 28 10:58:39.021 INFO running `"docker" "rm" "-f" "a24bc7e7c00ffdf3acba644509bd0faf8c581731a14f1332a70344423e81e605"`
Nov 28 10:58:39.344 INFO [stdout] a24bc7e7c00ffdf3acba644509bd0faf8c581731a14f1332a70344423e81e605