Dec 14 05:42:01.416 INFO testing StephenAshmore/synth against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 05:42:01.416 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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 14 05:42:01.867 INFO [stdout] 2af2afa646c49c327ed7ce6aee853ce3b0b71e294c99778fe24baad863a209dc
Dec 14 05:42:01.872 INFO running `"docker" "start" "-a" "2af2afa646c49c327ed7ce6aee853ce3b0b71e294c99778fe24baad863a209dc"`
Dec 14 05:42:03.162 INFO [stderr] usermod: no changes
Dec 14 05:42:03.291 INFO [stderr]    Compiling terminal_size v0.1.7
Dec 14 05:42:03.887 INFO [stderr]    Compiling synth v0.1.0 (/source)
Dec 14 05:42:04.383 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Dec 14 05:42:04.383 INFO [stderr]  --> src/main.rs:3:23
Dec 14 05:42:04.383 INFO [stderr]   |
Dec 14 05:42:04.383 INFO [stderr] 3 | use std::sync::mpsc::{Sender, Receiver};
Dec 14 05:42:04.383 INFO [stderr]   |                       ^^^^^^  ^^^^^^^^
Dec 14 05:42:04.383 INFO [stderr]   |
Dec 14 05:42:04.383 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 05:42:04.383 INFO [stderr] 
Dec 14 05:42:04.383 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 14 05:42:04.383 INFO [stderr]  --> src/cli/interface.rs:3:5
Dec 14 05:42:04.383 INFO [stderr]   |
Dec 14 05:42:04.383 INFO [stderr] 3 | use std::sync::mpsc;
Dec 14 05:42:04.383 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 14 05:42:04.383 INFO [stderr] 
Dec 14 05:42:04.383 INFO [stderr] warning: unused import: `BufRead`
Dec 14 05:42:04.383 INFO [stderr]  --> src/cli/display.rs:1:28
Dec 14 05:42:04.383 INFO [stderr]   |
Dec 14 05:42:04.383 INFO [stderr] 1 | use std::io::{self, Write, BufRead};
Dec 14 05:42:04.383 INFO [stderr]   |                            ^^^^^^^
Dec 14 05:42:04.383 INFO [stderr] 
Dec 14 05:42:04.447 INFO [stderr] warning: unused variable: `error`
Dec 14 05:42:04.447 INFO [stderr]   --> src/cli/display.rs:41:21
Dec 14 05:42:04.447 INFO [stderr]    |
Dec 14 05:42:04.447 INFO [stderr] 41 |                 Err(error) => String::from(""),
Dec 14 05:42:04.447 INFO [stderr]    |                     ^^^^^ help: consider using `_error` instead
Dec 14 05:42:04.447 INFO [stderr]    |
Dec 14 05:42:04.447 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 14 05:42:04.447 INFO [stderr] 
Dec 14 05:42:04.447 INFO [stderr] warning: unused variable: `buffer_pointer`
Dec 14 05:42:04.447 INFO [stderr]   --> src/cli/display.rs:57:17
Dec 14 05:42:04.447 INFO [stderr]    |
Dec 14 05:42:04.447 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Dec 14 05:42:04.447 INFO [stderr]    |                 ^^^^^^^^^^^^^^ help: consider using `_buffer_pointer` instead
Dec 14 05:42:04.447 INFO [stderr] 
Dec 14 05:42:04.451 INFO [stderr] warning: variable does not need to be mutable
Dec 14 05:42:04.451 INFO [stderr]   --> src/main.rs:12:9
Dec 14 05:42:04.451 INFO [stderr]    |
Dec 14 05:42:04.451 INFO [stderr] 12 |     let mut user_finished = false;
Dec 14 05:42:04.451 INFO [stderr]    |         ----^^^^^^^^^^^^^
Dec 14 05:42:04.451 INFO [stderr]    |         |
Dec 14 05:42:04.451 INFO [stderr]    |         help: remove this `mut`
Dec 14 05:42:04.451 INFO [stderr]    |
Dec 14 05:42:04.451 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 05:42:04.451 INFO [stderr] 
Dec 14 05:42:04.464 INFO [stderr] warning: variable does not need to be mutable
Dec 14 05:42:04.464 INFO [stderr]   --> src/cli/display.rs:57:13
Dec 14 05:42:04.464 INFO [stderr]    |
Dec 14 05:42:04.464 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Dec 14 05:42:04.464 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Dec 14 05:42:04.464 INFO [stderr]    |             |
Dec 14 05:42:04.464 INFO [stderr]    |             help: remove this `mut`
Dec 14 05:42:04.464 INFO [stderr] 
Dec 14 05:42:04.471 INFO [stderr] warning: field is never used: `m_sender`
Dec 14 05:42:04.471 INFO [stderr]  --> src/cli/interface.rs:7:5
Dec 14 05:42:04.471 INFO [stderr]   |
Dec 14 05:42:04.471 INFO [stderr] 7 |     m_sender: Sender<String>,
Dec 14 05:42:04.471 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 05:42:04.471 INFO [stderr]   |
Dec 14 05:42:04.471 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 14 05:42:04.471 INFO [stderr] 
Dec 14 05:42:04.479 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 05:42:04.479 INFO [stderr]   --> src/cli/display.rs:93:9
Dec 14 05:42:04.479 INFO [stderr]    |
Dec 14 05:42:04.479 INFO [stderr] 93 |         io::stdout().flush();
Dec 14 05:42:04.479 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 14 05:42:04.479 INFO [stderr]    |
Dec 14 05:42:04.479 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 05:42:04.479 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 05:42:04.479 INFO [stderr] 
Dec 14 05:42:05.890 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.69s
Dec 14 05:42:05.895 INFO [stderr] su: No module specific data is present
Dec 14 05:42:06.527 INFO running `"docker" "inspect" "2af2afa646c49c327ed7ce6aee853ce3b0b71e294c99778fe24baad863a209dc"`
Dec 14 05:42:06.843 INFO running `"docker" "rm" "-f" "2af2afa646c49c327ed7ce6aee853ce3b0b71e294c99778fe24baad863a209dc"`
Dec 14 05:42:07.235 INFO [stdout] 2af2afa646c49c327ed7ce6aee853ce3b0b71e294c99778fe24baad863a209dc
Dec 14 05:42:07.241 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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 14 05:42:07.712 INFO [stdout] 59572678b482fbff6f1010471b6d4089aa68003dd20cabce731817b5dce79551
Dec 14 05:42:07.721 INFO running `"docker" "start" "-a" "59572678b482fbff6f1010471b6d4089aa68003dd20cabce731817b5dce79551"`
Dec 14 05:42:08.837 INFO [stderr] usermod: no changes
Dec 14 05:42:08.971 INFO [stderr]    Compiling synth v0.1.0 (/source)
Dec 14 05:42:09.628 INFO [stderr] warning: unused imports: `Receiver`, `Sender`
Dec 14 05:42:09.628 INFO [stderr]  --> src/main.rs:3:23
Dec 14 05:42:09.628 INFO [stderr]   |
Dec 14 05:42:09.628 INFO [stderr] 3 | use std::sync::mpsc::{Sender, Receiver};
Dec 14 05:42:09.628 INFO [stderr]   |                       ^^^^^^  ^^^^^^^^
Dec 14 05:42:09.628 INFO [stderr]   |
Dec 14 05:42:09.628 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 05:42:09.628 INFO [stderr] 
Dec 14 05:42:09.628 INFO [stderr] warning: unused import: `std::sync::mpsc`
Dec 14 05:42:09.628 INFO [stderr]  --> src/cli/interface.rs:3:5
Dec 14 05:42:09.628 INFO [stderr]   |
Dec 14 05:42:09.628 INFO [stderr] 3 | use std::sync::mpsc;
Dec 14 05:42:09.628 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 14 05:42:09.628 INFO [stderr] 
Dec 14 05:42:09.628 INFO [stderr] warning: unused import: `BufRead`
Dec 14 05:42:09.628 INFO [stderr]  --> src/cli/display.rs:1:28
Dec 14 05:42:09.628 INFO [stderr]   |
Dec 14 05:42:09.628 INFO [stderr] 1 | use std::io::{self, Write, BufRead};
Dec 14 05:42:09.628 INFO [stderr]   |                            ^^^^^^^
Dec 14 05:42:09.628 INFO [stderr] 
Dec 14 05:42:09.691 INFO [stderr] warning: unused variable: `error`
Dec 14 05:42:09.691 INFO [stderr]   --> src/cli/display.rs:41:21
Dec 14 05:42:09.691 INFO [stderr]    |
Dec 14 05:42:09.691 INFO [stderr] 41 |                 Err(error) => String::from(""),
Dec 14 05:42:09.691 INFO [stderr]    |                     ^^^^^ help: consider using `_error` instead
Dec 14 05:42:09.691 INFO [stderr]    |
Dec 14 05:42:09.691 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 14 05:42:09.691 INFO [stderr] 
Dec 14 05:42:09.691 INFO [stderr] warning: unused variable: `buffer_pointer`
Dec 14 05:42:09.691 INFO [stderr]   --> src/cli/display.rs:57:17
Dec 14 05:42:09.691 INFO [stderr]    |
Dec 14 05:42:09.691 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Dec 14 05:42:09.691 INFO [stderr]    |                 ^^^^^^^^^^^^^^ help: consider using `_buffer_pointer` instead
Dec 14 05:42:09.691 INFO [stderr] 
Dec 14 05:42:09.699 INFO [stderr] warning: variable does not need to be mutable
Dec 14 05:42:09.699 INFO [stderr]   --> src/main.rs:12:9
Dec 14 05:42:09.699 INFO [stderr]    |
Dec 14 05:42:09.699 INFO [stderr] 12 |     let mut user_finished = false;
Dec 14 05:42:09.699 INFO [stderr]    |         ----^^^^^^^^^^^^^
Dec 14 05:42:09.699 INFO [stderr]    |         |
Dec 14 05:42:09.699 INFO [stderr]    |         help: remove this `mut`
Dec 14 05:42:09.699 INFO [stderr]    |
Dec 14 05:42:09.699 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 05:42:09.699 INFO [stderr] 
Dec 14 05:42:09.703 INFO [stderr] warning: variable does not need to be mutable
Dec 14 05:42:09.703 INFO [stderr]   --> src/cli/display.rs:57:13
Dec 14 05:42:09.703 INFO [stderr]    |
Dec 14 05:42:09.703 INFO [stderr] 57 |         let mut buffer_pointer = 0;
Dec 14 05:42:09.703 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Dec 14 05:42:09.703 INFO [stderr]    |             |
Dec 14 05:42:09.703 INFO [stderr]    |             help: remove this `mut`
Dec 14 05:42:09.703 INFO [stderr] 
Dec 14 05:42:09.715 INFO [stderr] warning: field is never used: `m_sender`
Dec 14 05:42:09.715 INFO [stderr]  --> src/cli/interface.rs:7:5
Dec 14 05:42:09.715 INFO [stderr]   |
Dec 14 05:42:09.715 INFO [stderr] 7 |     m_sender: Sender<String>,
Dec 14 05:42:09.715 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 05:42:09.715 INFO [stderr]   |
Dec 14 05:42:09.715 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 14 05:42:09.715 INFO [stderr] 
Dec 14 05:42:09.724 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 05:42:09.724 INFO [stderr]   --> src/cli/display.rs:93:9
Dec 14 05:42:09.724 INFO [stderr]    |
Dec 14 05:42:09.724 INFO [stderr] 93 |         io::stdout().flush();
Dec 14 05:42:09.724 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 14 05:42:09.724 INFO [stderr]    |
Dec 14 05:42:09.724 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 05:42:09.724 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 05:42:09.724 INFO [stderr] 
Dec 14 05:42:10.052 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
Dec 14 05:42:10.063 INFO [stderr] su: No module specific data is present
Dec 14 05:42:10.969 INFO running `"docker" "inspect" "59572678b482fbff6f1010471b6d4089aa68003dd20cabce731817b5dce79551"`
Dec 14 05:42:11.253 INFO running `"docker" "rm" "-f" "59572678b482fbff6f1010471b6d4089aa68003dd20cabce731817b5dce79551"`
Dec 14 05:42:11.613 INFO [stdout] 59572678b482fbff6f1010471b6d4089aa68003dd20cabce731817b5dce79551
Dec 14 05:42:11.615 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-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 14 05:42:12.137 INFO [stdout] da74b363318b384dbd72aeb710951c48f0945997163764427047fefe124b0479
Dec 14 05:42:12.139 INFO running `"docker" "start" "-a" "da74b363318b384dbd72aeb710951c48f0945997163764427047fefe124b0479"`
Dec 14 05:42:13.772 INFO [stderr] usermod: no changes
Dec 14 05:42:13.843 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 14 05:42:13.855 INFO [stderr]      Running /target/debug/deps/synth-147a3a6cbedfb271
Dec 14 05:42:13.855 INFO [stdout] 
Dec 14 05:42:13.855 INFO [stdout] running 0 tests
Dec 14 05:42:13.855 INFO [stdout] 
Dec 14 05:42:13.855 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 05:42:13.855 INFO [stdout] 
Dec 14 05:42:13.857 INFO [stderr] su: No module specific data is present
Dec 14 05:42:14.808 INFO running `"docker" "inspect" "da74b363318b384dbd72aeb710951c48f0945997163764427047fefe124b0479"`
Dec 14 05:42:15.176 INFO running `"docker" "rm" "-f" "da74b363318b384dbd72aeb710951c48f0945997163764427047fefe124b0479"`
Dec 14 05:42:15.439 INFO [stdout] da74b363318b384dbd72aeb710951c48f0945997163764427047fefe124b0479