Dec 04 07:26:37.624 INFO checking vtsingaras/visafe against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 07:26:37.624 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 07:26:38.018 INFO [stdout] f1688e702616f497077dc2ff7fbdbaa73b8638d09ef403dbd86512da7187003c
Dec 04 07:26:38.021 INFO running `"docker" "start" "-a" "f1688e702616f497077dc2ff7fbdbaa73b8638d09ef403dbd86512da7187003c"`
Dec 04 07:26:40.502 INFO [stderr] usermod: no changes
Dec 04 07:26:40.575 INFO [stderr]     Checking argparse v0.2.1
Dec 04 07:26:41.299 INFO [stderr]     Checking visafe v0.1.0 (/source)
Dec 04 07:26:41.763 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:26:41.763 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:26:41.763 INFO [stderr]    --> src/main.rs:102:13
Dec 04 07:26:41.764 INFO [stderr]     |
Dec 04 07:26:41.764 INFO [stderr] 102 |         let mut checker_cmd = Command::new(options.checker.as_str()).arg(tmppath_str.clone()).stdout(Stdio::piped())
Dec 04 07:26:41.764 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 04 07:26:41.765 INFO [stderr]     |             |
Dec 04 07:26:41.765 INFO [stderr]     |             help: remove this `mut`
Dec 04 07:26:41.765 INFO [stderr]     |
Dec 04 07:26:41.766 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 07:26:41.766 INFO [stderr] 
Dec 04 07:26:41.766 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:26:41.766 INFO [stderr]   --> src/main.rs:39:9
Dec 04 07:26:41.766 INFO [stderr]    |
Dec 04 07:26:41.766 INFO [stderr] 39 |         io::stdout().flush();
Dec 04 07:26:41.766 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:26:41.766 INFO [stderr]    |
Dec 04 07:26:41.766 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 07:26:41.766 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:26:41.766 INFO [stderr] 
Dec 04 07:26:41.766 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:26:41.766 INFO [stderr]    --> src/main.rs:100:9
Dec 04 07:26:41.766 INFO [stderr]     |
Dec 04 07:26:41.766 INFO [stderr] 100 |         editor_cmd.wait();
Dec 04 07:26:41.766 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^
Dec 04 07:26:41.766 INFO [stderr]     |
Dec 04 07:26:41.766 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:26:41.766 INFO [stderr] 
Dec 04 07:26:41.766 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:26:41.766 INFO [stderr]    --> src/main.rs:124:13
Dec 04 07:26:41.766 INFO [stderr]     |
Dec 04 07:26:41.766 INFO [stderr] 124 |             fs::remove_file(tmppath_str.clone());
Dec 04 07:26:41.766 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:26:41.766 INFO [stderr]     |
Dec 04 07:26:41.766 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:26:41.766 INFO [stderr] 
Dec 04 07:26:41.766 INFO [stderr]    --> src/main.rs:102:13
Dec 04 07:26:41.766 INFO [stderr]     |
Dec 04 07:26:41.766 INFO [stderr] 102 |         let mut checker_cmd = Command::new(options.checker.as_str()).arg(tmppath_str.clone()).stdout(Stdio::piped())
Dec 04 07:26:41.767 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 04 07:26:41.767 INFO [stderr]     |             |
Dec 04 07:26:41.767 INFO [stderr]     |             help: remove this `mut`
Dec 04 07:26:41.767 INFO [stderr]     |
Dec 04 07:26:41.767 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 07:26:41.767 INFO [stderr] 
Dec 04 07:26:41.767 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:26:41.767 INFO [stderr]   --> src/main.rs:39:9
Dec 04 07:26:41.767 INFO [stderr]    |
Dec 04 07:26:41.767 INFO [stderr] 39 |         io::stdout().flush();
Dec 04 07:26:41.767 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:26:41.767 INFO [stderr]    |
Dec 04 07:26:41.767 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 07:26:41.767 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:26:41.767 INFO [stderr] 
Dec 04 07:26:41.767 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:26:41.767 INFO [stderr]    --> src/main.rs:100:9
Dec 04 07:26:41.767 INFO [stderr]     |
Dec 04 07:26:41.767 INFO [stderr] 100 |         editor_cmd.wait();
Dec 04 07:26:41.767 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^
Dec 04 07:26:41.767 INFO [stderr]     |
Dec 04 07:26:41.767 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:26:41.767 INFO [stderr] 
Dec 04 07:26:41.767 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:26:41.767 INFO [stderr]    --> src/main.rs:124:13
Dec 04 07:26:41.767 INFO [stderr]     |
Dec 04 07:26:41.767 INFO [stderr] 124 |             fs::remove_file(tmppath_str.clone());
Dec 04 07:26:41.768 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:26:41.768 INFO [stderr]     |
Dec 04 07:26:41.768 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:26:41.768 INFO [stderr] 
Dec 04 07:26:41.806 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
Dec 04 07:26:41.813 INFO [stderr] su: No module specific data is present
Dec 04 07:26:43.298 INFO running `"docker" "inspect" "f1688e702616f497077dc2ff7fbdbaa73b8638d09ef403dbd86512da7187003c"`
Dec 04 07:26:43.671 INFO running `"docker" "rm" "-f" "f1688e702616f497077dc2ff7fbdbaa73b8638d09ef403dbd86512da7187003c"`
Dec 04 07:26:44.039 INFO [stdout] f1688e702616f497077dc2ff7fbdbaa73b8638d09ef403dbd86512da7187003c