Nov 30 10:47:38.961 INFO checking Hand-of-Cthulhu/quiz_file_creator against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 10:47:38.961 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 10:47:39.308 INFO [stdout] f5e4245b4942c6e09725e83a025eba1ea5567ab216be6261a37aa58b366aedf8
Nov 30 10:47:39.314 INFO running `"docker" "start" "-a" "f5e4245b4942c6e09725e83a025eba1ea5567ab216be6261a37aa58b366aedf8"`
Nov 30 10:47:40.073 INFO [stderr] usermod: no changes
Nov 30 10:47:40.152 INFO [stderr]     Checking nix v0.5.1
Nov 30 10:47:43.213 INFO [stderr]     Checking rustyline v1.0.0
Nov 30 10:47:44.291 INFO [stderr]     Checking quiz_file_creator v0.1.0 (/source)
Nov 30 10:47:45.709 INFO [stderr] warning: unused import: `regex::Regex`
Nov 30 10:47:45.709 INFO [stderr]  --> src/main.rs:6:5
Nov 30 10:47:45.709 INFO [stderr]   |
Nov 30 10:47:45.709 INFO [stderr] 6 | use regex::Regex;
Nov 30 10:47:45.709 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 30 10:47:45.709 INFO [stderr]   |
Nov 30 10:47:45.709 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 10:47:45.709 INFO [stderr] 
Nov 30 10:47:45.709 INFO [stderr] warning: unused import: `std::io`
Nov 30 10:47:45.709 INFO [stderr]  --> src/main.rs:9:5
Nov 30 10:47:45.709 INFO [stderr]   |
Nov 30 10:47:45.709 INFO [stderr] 9 | use std::io;
Nov 30 10:47:45.709 INFO [stderr]   |     ^^^^^^^
Nov 30 10:47:45.709 INFO [stderr] 
Nov 30 10:47:45.836 INFO [stderr] warning: unused import: `regex::Regex`
Nov 30 10:47:45.836 INFO [stderr]  --> src/main.rs:6:5
Nov 30 10:47:45.836 INFO [stderr]   |
Nov 30 10:47:45.836 INFO [stderr] 6 | use regex::Regex;
Nov 30 10:47:45.836 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 30 10:47:45.836 INFO [stderr]   |
Nov 30 10:47:45.836 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 10:47:45.836 INFO [stderr] 
Nov 30 10:47:45.836 INFO [stderr] warning: unused import: `std::io`
Nov 30 10:47:45.836 INFO [stderr]  --> src/main.rs:9:5
Nov 30 10:47:45.836 INFO [stderr]   |
Nov 30 10:47:45.836 INFO [stderr] 9 | use std::io;
Nov 30 10:47:45.836 INFO [stderr]   |     ^^^^^^^
Nov 30 10:47:45.836 INFO [stderr] 
Nov 30 10:47:45.899 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 10:47:45.899 INFO [stderr]   --> src/main.rs:61:5
Nov 30 10:47:45.899 INFO [stderr]    |
Nov 30 10:47:45.899 INFO [stderr] 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Nov 30 10:47:45.899 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 10:47:45.899 INFO [stderr]    |
Nov 30 10:47:45.899 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 10:47:45.899 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 10:47:45.899 INFO [stderr] 
Nov 30 10:47:45.994 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 10:47:45.994 INFO [stderr]   --> src/main.rs:61:5
Nov 30 10:47:45.994 INFO [stderr]    |
Nov 30 10:47:45.994 INFO [stderr] 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Nov 30 10:47:45.994 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 10:47:45.994 INFO [stderr]    |
Nov 30 10:47:45.994 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 10:47:45.994 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 10:47:45.994 INFO [stderr] 
Nov 30 10:47:46.016 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.92s
Nov 30 10:47:46.019 INFO [stderr] su: No module specific data is present
Nov 30 10:47:46.349 INFO running `"docker" "inspect" "f5e4245b4942c6e09725e83a025eba1ea5567ab216be6261a37aa58b366aedf8"`
Nov 30 10:47:46.437 INFO running `"docker" "rm" "-f" "f5e4245b4942c6e09725e83a025eba1ea5567ab216be6261a37aa58b366aedf8"`
Nov 30 10:47:46.516 INFO [stdout] f5e4245b4942c6e09725e83a025eba1ea5567ab216be6261a37aa58b366aedf8