Nov 28 13:18:57.645 INFO checking Hand-of-Cthulhu/quiz_file_creator against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 13:18:57.645 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 13:18:57.847 INFO [stdout] 665dbe0e82b08ac3982ef4f97a6bd7a29d41630848dd67db6807f7c9192598a7
Nov 28 13:18:57.849 INFO running `"docker" "start" "-a" "665dbe0e82b08ac3982ef4f97a6bd7a29d41630848dd67db6807f7c9192598a7"`
Nov 28 13:18:58.596 INFO [stderr] usermod: no changes
Nov 28 13:18:58.697 INFO [stderr]     Checking nix v0.5.1
Nov 28 13:19:02.132 INFO [stderr]     Checking rustyline v1.0.0
Nov 28 13:19:03.195 INFO [stderr]     Checking quiz_file_creator v0.1.0 (/source)
Nov 28 13:19:04.688 INFO [stderr] warning: unused import: `regex::Regex`
Nov 28 13:19:04.688 INFO [stderr]  --> src/main.rs:6:5
Nov 28 13:19:04.688 INFO [stderr]   |
Nov 28 13:19:04.688 INFO [stderr] 6 | use regex::Regex;
Nov 28 13:19:04.689 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 28 13:19:04.689 INFO [stderr]   |
Nov 28 13:19:04.689 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 13:19:04.689 INFO [stderr] 
Nov 28 13:19:04.689 INFO [stderr] warning: unused import: `std::io`
Nov 28 13:19:04.689 INFO [stderr]  --> src/main.rs:9:5
Nov 28 13:19:04.689 INFO [stderr]   |
Nov 28 13:19:04.689 INFO [stderr] 9 | use std::io;
Nov 28 13:19:04.689 INFO [stderr]   |     ^^^^^^^
Nov 28 13:19:04.689 INFO [stderr] 
Nov 28 13:19:04.776 INFO [stderr] warning: unused import: `regex::Regex`
Nov 28 13:19:04.777 INFO [stderr]  --> src/main.rs:6:5
Nov 28 13:19:04.777 INFO [stderr]   |
Nov 28 13:19:04.777 INFO [stderr] 6 | use regex::Regex;
Nov 28 13:19:04.777 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 28 13:19:04.777 INFO [stderr]   |
Nov 28 13:19:04.777 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 13:19:04.777 INFO [stderr] 
Nov 28 13:19:04.777 INFO [stderr] warning: unused import: `std::io`
Nov 28 13:19:04.777 INFO [stderr]  --> src/main.rs:9:5
Nov 28 13:19:04.777 INFO [stderr]   |
Nov 28 13:19:04.777 INFO [stderr] 9 | use std::io;
Nov 28 13:19:04.777 INFO [stderr]   |     ^^^^^^^
Nov 28 13:19:04.777 INFO [stderr] 
Nov 28 13:19:04.911 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:19:04.911 INFO [stderr]   --> src/main.rs:61:5
Nov 28 13:19:04.911 INFO [stderr]    |
Nov 28 13:19:04.911 INFO [stderr] 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Nov 28 13:19:04.911 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:19:04.911 INFO [stderr]    |
Nov 28 13:19:04.911 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 13:19:04.911 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:19:04.911 INFO [stderr] 
Nov 28 13:19:04.939 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:19:04.939 INFO [stderr]   --> src/main.rs:61:5
Nov 28 13:19:04.939 INFO [stderr]    |
Nov 28 13:19:04.939 INFO [stderr] 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Nov 28 13:19:04.939 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:19:04.939 INFO [stderr]    |
Nov 28 13:19:04.939 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 13:19:04.939 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:19:04.939 INFO [stderr] 
Nov 28 13:19:04.973 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.35s
Nov 28 13:19:04.980 INFO [stderr] su: No module specific data is present
Nov 28 13:19:05.468 INFO running `"docker" "inspect" "665dbe0e82b08ac3982ef4f97a6bd7a29d41630848dd67db6807f7c9192598a7"`
Nov 28 13:19:05.716 INFO running `"docker" "rm" "-f" "665dbe0e82b08ac3982ef4f97a6bd7a29d41630848dd67db6807f7c9192598a7"`
Nov 28 13:19:05.968 INFO [stdout] 665dbe0e82b08ac3982ef4f97a6bd7a29d41630848dd67db6807f7c9192598a7