Oct 13 04:28:41.711 INFO checking Hand-of-Cthulhu/quiz_file_creator against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 04:28:41.711 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 04:28:42.302 INFO blam! 7fcea15b952da1437ade053a25184c95785861820aaeb78cae8ffbb464002580
Oct 13 04:28:42.304 INFO running `"docker" "start" "-a" "7fcea15b952da1437ade053a25184c95785861820aaeb78cae8ffbb464002580"`
Oct 13 04:28:44.284 INFO kablam! usermod: no changes
Oct 13 04:28:44.513 INFO kablam!     Checking nix v0.5.1
Oct 13 04:28:48.128 INFO kablam!     Checking rustyline v1.0.0
Oct 13 04:28:49.316 INFO kablam!     Checking quiz_file_creator v0.1.0 (/source)
Oct 13 04:28:51.277 INFO kablam! warning: unused import: `regex::Regex`
Oct 13 04:28:51.278 INFO kablam!  --> src/main.rs:6:5
Oct 13 04:28:51.279 INFO kablam!   |
Oct 13 04:28:51.279 INFO kablam! 6 | use regex::Regex;
Oct 13 04:28:51.280 INFO kablam!   |     ^^^^^^^^^^^^
Oct 13 04:28:51.281 INFO kablam!   |
Oct 13 04:28:51.281 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 04:28:51.282 INFO kablam! 
Oct 13 04:28:51.282 INFO kablam! warning: unused import: `std::io`
Oct 13 04:28:51.283 INFO kablam!  --> src/main.rs:9:5
Oct 13 04:28:51.284 INFO kablam!   |
Oct 13 04:28:51.284 INFO kablam! 9 | use std::io;
Oct 13 04:28:51.285 INFO kablam!   |     ^^^^^^^
Oct 13 04:28:51.285 INFO kablam! 
Oct 13 04:28:51.368 INFO kablam! warning: unused import: `regex::Regex`
Oct 13 04:28:51.369 INFO kablam!  --> src/main.rs:6:5
Oct 13 04:28:51.370 INFO kablam!   |
Oct 13 04:28:51.370 INFO kablam! 6 | use regex::Regex;
Oct 13 04:28:51.371 INFO kablam!   |     ^^^^^^^^^^^^
Oct 13 04:28:51.371 INFO kablam!   |
Oct 13 04:28:51.372 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 04:28:51.373 INFO kablam! 
Oct 13 04:28:51.373 INFO kablam! warning: unused import: `std::io`
Oct 13 04:28:51.374 INFO kablam!  --> src/main.rs:9:5
Oct 13 04:28:51.374 INFO kablam!   |
Oct 13 04:28:51.375 INFO kablam! 9 | use std::io;
Oct 13 04:28:51.375 INFO kablam!   |     ^^^^^^^
Oct 13 04:28:51.376 INFO kablam! 
Oct 13 04:28:51.476 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 04:28:51.477 INFO kablam!   --> src/main.rs:61:5
Oct 13 04:28:51.478 INFO kablam!    |
Oct 13 04:28:51.478 INFO kablam! 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Oct 13 04:28:51.479 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 04:28:51.480 INFO kablam!    |
Oct 13 04:28:51.480 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 04:28:51.481 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 04:28:51.482 INFO kablam! 
Oct 13 04:28:51.534 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 04:28:51.535 INFO kablam!   --> src/main.rs:61:5
Oct 13 04:28:51.536 INFO kablam!    |
Oct 13 04:28:51.537 INFO kablam! 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Oct 13 04:28:51.537 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 04:28:51.543 INFO kablam!    |
Oct 13 04:28:51.544 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 04:28:51.545 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 04:28:51.545 INFO kablam! 
Oct 13 04:28:51.623 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.31s
Oct 13 04:28:51.628 INFO kablam! su: No module specific data is present
Oct 13 04:28:52.700 INFO running `"docker" "rm" "-f" "7fcea15b952da1437ade053a25184c95785861820aaeb78cae8ffbb464002580"`
Oct 13 04:28:52.981 INFO blam! 7fcea15b952da1437ade053a25184c95785861820aaeb78cae8ffbb464002580