Dec 12 08:32:19.446 INFO checking run-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 08:32:19.446 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 08:32:19.840 INFO [stdout] d94164ba53102fba0f36deb30861fd3e8a912d6d79a6505c2b342c3a571fe588
Dec 12 08:32:19.846 INFO running `"docker" "start" "-a" "d94164ba53102fba0f36deb30861fd3e8a912d6d79a6505c2b342c3a571fe588"`
Dec 12 08:32:20.756 INFO [stderr] usermod: no changes
Dec 12 08:32:20.828 INFO [stderr]     Checking run v0.1.0 (/source)
Dec 12 08:32:21.436 INFO [stderr] warning: unused import: `std::error::Error`
Dec 12 08:32:21.436 INFO [stderr]  --> src/main.rs:6:5
Dec 12 08:32:21.436 INFO [stderr]   |
Dec 12 08:32:21.436 INFO [stderr] 6 | use std::error::Error;
Dec 12 08:32:21.436 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 12 08:32:21.436 INFO [stderr]   |
Dec 12 08:32:21.436 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 08:32:21.436 INFO [stderr] 
Dec 12 08:32:21.436 INFO [stderr] warning: unused import: `toml::Value`
Dec 12 08:32:21.436 INFO [stderr]   --> src/main.rs:15:5
Dec 12 08:32:21.436 INFO [stderr]    |
Dec 12 08:32:21.436 INFO [stderr] 15 | use toml::Value;
Dec 12 08:32:21.436 INFO [stderr]    |     ^^^^^^^^^^^
Dec 12 08:32:21.436 INFO [stderr] 
Dec 12 08:32:21.540 INFO [stderr] warning: unused variable: `config`
Dec 12 08:32:21.540 INFO [stderr]    --> src/main.rs:120:12
Dec 12 08:32:21.540 INFO [stderr]     |
Dec 12 08:32:21.540 INFO [stderr] 120 |         Ok(config) => println!("{}", ""),
Dec 12 08:32:21.540 INFO [stderr]     |            ^^^^^^ help: consider using `_config` instead
Dec 12 08:32:21.540 INFO [stderr]     |
Dec 12 08:32:21.540 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 12 08:32:21.540 INFO [stderr] 
Dec 12 08:32:21.591 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 08:32:21.591 INFO [stderr]   --> src/main.rs:64:5
Dec 12 08:32:21.591 INFO [stderr]    |
Dec 12 08:32:21.591 INFO [stderr] 64 |     io::stdout().flush();
Dec 12 08:32:21.592 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 12 08:32:21.592 INFO [stderr]    |
Dec 12 08:32:21.592 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 08:32:21.592 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 08:32:21.592 INFO [stderr] 
Dec 12 08:32:21.592 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 08:32:21.592 INFO [stderr]   --> src/main.rs:67:5
Dec 12 08:32:21.592 INFO [stderr]    |
Dec 12 08:32:21.592 INFO [stderr] 67 |     io::stdin().read_line(&mut opt);
Dec 12 08:32:21.592 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 08:32:21.592 INFO [stderr]    |
Dec 12 08:32:21.592 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 08:32:21.592 INFO [stderr] 
Dec 12 08:32:21.681 INFO [stderr] warning: unused import: `std::error::Error`
Dec 12 08:32:21.681 INFO [stderr]  --> src/main.rs:6:5
Dec 12 08:32:21.681 INFO [stderr]   |
Dec 12 08:32:21.681 INFO [stderr] 6 | use std::error::Error;
Dec 12 08:32:21.681 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 12 08:32:21.681 INFO [stderr]   |
Dec 12 08:32:21.681 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 08:32:21.681 INFO [stderr] 
Dec 12 08:32:21.681 INFO [stderr] warning: unused import: `toml::Value`
Dec 12 08:32:21.681 INFO [stderr]   --> src/main.rs:15:5
Dec 12 08:32:21.681 INFO [stderr]    |
Dec 12 08:32:21.681 INFO [stderr] 15 | use toml::Value;
Dec 12 08:32:21.681 INFO [stderr]    |     ^^^^^^^^^^^
Dec 12 08:32:21.681 INFO [stderr] 
Dec 12 08:32:21.794 INFO [stderr] warning: unused variable: `config`
Dec 12 08:32:21.794 INFO [stderr]    --> src/main.rs:120:12
Dec 12 08:32:21.794 INFO [stderr]     |
Dec 12 08:32:21.794 INFO [stderr] 120 |         Ok(config) => println!("{}", ""),
Dec 12 08:32:21.794 INFO [stderr]     |            ^^^^^^ help: consider using `_config` instead
Dec 12 08:32:21.794 INFO [stderr]     |
Dec 12 08:32:21.794 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 12 08:32:21.794 INFO [stderr] 
Dec 12 08:32:21.838 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 08:32:21.838 INFO [stderr]   --> src/main.rs:64:5
Dec 12 08:32:21.838 INFO [stderr]    |
Dec 12 08:32:21.838 INFO [stderr] 64 |     io::stdout().flush();
Dec 12 08:32:21.838 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 12 08:32:21.838 INFO [stderr]    |
Dec 12 08:32:21.838 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 08:32:21.838 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 08:32:21.838 INFO [stderr] 
Dec 12 08:32:21.838 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 08:32:21.838 INFO [stderr]   --> src/main.rs:67:5
Dec 12 08:32:21.838 INFO [stderr]    |
Dec 12 08:32:21.838 INFO [stderr] 67 |     io::stdin().read_line(&mut opt);
Dec 12 08:32:21.838 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 08:32:21.838 INFO [stderr]    |
Dec 12 08:32:21.838 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 08:32:21.838 INFO [stderr] 
Dec 12 08:32:21.852 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
Dec 12 08:32:21.856 INFO [stderr] su: No module specific data is present
Dec 12 08:32:22.386 INFO running `"docker" "inspect" "d94164ba53102fba0f36deb30861fd3e8a912d6d79a6505c2b342c3a571fe588"`
Dec 12 08:32:22.738 INFO running `"docker" "rm" "-f" "d94164ba53102fba0f36deb30861fd3e8a912d6d79a6505c2b342c3a571fe588"`
Dec 12 08:32:23.034 INFO [stdout] d94164ba53102fba0f36deb30861fd3e8a912d6d79a6505c2b342c3a571fe588