Dec 05 02:13:33.181 INFO checking Hand-of-Cthulhu/quiz_file_creator against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 02:13:33.181 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 05 02:13:33.429 INFO [stdout] 57dff9c06eacb7e37808d65ea2084b4258fe6e9678b0f6b0fb718ec33015a444
Dec 05 02:13:33.433 INFO running `"docker" "start" "-a" "57dff9c06eacb7e37808d65ea2084b4258fe6e9678b0f6b0fb718ec33015a444"`
Dec 05 02:13:34.020 INFO [stderr] usermod: no changes
Dec 05 02:13:34.083 INFO [stderr]     Checking nix v0.5.1
Dec 05 02:13:37.324 INFO [stderr]     Checking rustyline v1.0.0
Dec 05 02:13:38.402 INFO [stderr]     Checking quiz_file_creator v0.1.0 (/source)
Dec 05 02:13:39.939 INFO [stderr] warning: unused import: `regex::Regex`
Dec 05 02:13:39.939 INFO [stderr]  --> src/main.rs:6:5
Dec 05 02:13:39.939 INFO [stderr]   |
Dec 05 02:13:39.939 INFO [stderr] 6 | use regex::Regex;
Dec 05 02:13:39.939 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 05 02:13:39.939 INFO [stderr]   |
Dec 05 02:13:39.939 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:13:39.939 INFO [stderr] 
Dec 05 02:13:39.939 INFO [stderr] warning: unused import: `std::io`
Dec 05 02:13:39.939 INFO [stderr]  --> src/main.rs:9:5
Dec 05 02:13:39.939 INFO [stderr]   |
Dec 05 02:13:39.939 INFO [stderr] 9 | use std::io;
Dec 05 02:13:39.939 INFO [stderr]   |     ^^^^^^^
Dec 05 02:13:39.939 INFO [stderr] 
Dec 05 02:13:40.062 INFO [stderr] warning: unused import: `regex::Regex`
Dec 05 02:13:40.062 INFO [stderr]  --> src/main.rs:6:5
Dec 05 02:13:40.062 INFO [stderr]   |
Dec 05 02:13:40.062 INFO [stderr] 6 | use regex::Regex;
Dec 05 02:13:40.062 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 05 02:13:40.062 INFO [stderr]   |
Dec 05 02:13:40.062 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:13:40.062 INFO [stderr] 
Dec 05 02:13:40.062 INFO [stderr] warning: unused import: `std::io`
Dec 05 02:13:40.062 INFO [stderr]  --> src/main.rs:9:5
Dec 05 02:13:40.062 INFO [stderr]   |
Dec 05 02:13:40.062 INFO [stderr] 9 | use std::io;
Dec 05 02:13:40.062 INFO [stderr]   |     ^^^^^^^
Dec 05 02:13:40.062 INFO [stderr] 
Dec 05 02:13:40.147 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:13:40.147 INFO [stderr]   --> src/main.rs:61:5
Dec 05 02:13:40.147 INFO [stderr]    |
Dec 05 02:13:40.147 INFO [stderr] 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Dec 05 02:13:40.147 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:13:40.147 INFO [stderr]    |
Dec 05 02:13:40.147 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 02:13:40.147 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:13:40.147 INFO [stderr] 
Dec 05 02:13:40.219 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:13:40.219 INFO [stderr]   --> src/main.rs:61:5
Dec 05 02:13:40.219 INFO [stderr]    |
Dec 05 02:13:40.219 INFO [stderr] 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Dec 05 02:13:40.219 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:13:40.219 INFO [stderr]    |
Dec 05 02:13:40.219 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 02:13:40.219 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:13:40.219 INFO [stderr] 
Dec 05 02:13:40.236 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.20s
Dec 05 02:13:40.247 INFO [stderr] su: No module specific data is present
Dec 05 02:13:40.877 INFO running `"docker" "inspect" "57dff9c06eacb7e37808d65ea2084b4258fe6e9678b0f6b0fb718ec33015a444"`
Dec 05 02:13:41.179 INFO running `"docker" "rm" "-f" "57dff9c06eacb7e37808d65ea2084b4258fe6e9678b0f6b0fb718ec33015a444"`
Dec 05 02:13:41.507 INFO [stdout] 57dff9c06eacb7e37808d65ea2084b4258fe6e9678b0f6b0fb718ec33015a444