Nov 01 11:59:47.703 INFO checking Hand-of-Cthulhu/quiz_file_creator against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 11:59:47.704 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-3/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 11:59:48.349 INFO blam! 57b983a3b9304a9a7237b100595b7f657397b99ff38472250ba400b03367eace
Nov 01 11:59:48.351 INFO running `"docker" "start" "-a" "57b983a3b9304a9a7237b100595b7f657397b99ff38472250ba400b03367eace"`
Nov 01 11:59:49.835 INFO kablam! usermod: no changes
Nov 01 11:59:49.944 INFO kablam!     Checking nix v0.5.1
Nov 01 11:59:53.641 INFO kablam!     Checking rustyline v1.0.0
Nov 01 11:59:54.921 INFO kablam!     Checking quiz_file_creator v0.1.0 (/source)
Nov 01 11:59:56.300 INFO kablam! warning: unused import: `regex::Regex`
Nov 01 11:59:56.300 INFO kablam!  --> src/main.rs:6:5
Nov 01 11:59:56.300 INFO kablam!   |
Nov 01 11:59:56.300 INFO kablam! 6 | use regex::Regex;
Nov 01 11:59:56.300 INFO kablam!   |     ^^^^^^^^^^^^
Nov 01 11:59:56.300 INFO kablam!   |
Nov 01 11:59:56.300 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 11:59:56.300 INFO kablam! 
Nov 01 11:59:56.300 INFO kablam! warning: unused import: `std::io`
Nov 01 11:59:56.300 INFO kablam!  --> src/main.rs:9:5
Nov 01 11:59:56.300 INFO kablam!   |
Nov 01 11:59:56.300 INFO kablam! 9 | use std::io;
Nov 01 11:59:56.300 INFO kablam!   |     ^^^^^^^
Nov 01 11:59:56.300 INFO kablam! 
Nov 01 11:59:56.428 INFO kablam! warning: unused import: `regex::Regex`
Nov 01 11:59:56.428 INFO kablam!  --> src/main.rs:6:5
Nov 01 11:59:56.428 INFO kablam!   |
Nov 01 11:59:56.428 INFO kablam! 6 | use regex::Regex;
Nov 01 11:59:56.428 INFO kablam!   |     ^^^^^^^^^^^^
Nov 01 11:59:56.428 INFO kablam!   |
Nov 01 11:59:56.428 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 11:59:56.428 INFO kablam! 
Nov 01 11:59:56.428 INFO kablam! warning: unused import: `std::io`
Nov 01 11:59:56.428 INFO kablam!  --> src/main.rs:9:5
Nov 01 11:59:56.428 INFO kablam!   |
Nov 01 11:59:56.428 INFO kablam! 9 | use std::io;
Nov 01 11:59:56.428 INFO kablam!   |     ^^^^^^^
Nov 01 11:59:56.428 INFO kablam! 
Nov 01 11:59:56.560 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:59:56.560 INFO kablam!   --> src/main.rs:61:5
Nov 01 11:59:56.560 INFO kablam!    |
Nov 01 11:59:56.560 INFO kablam! 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Nov 01 11:59:56.560 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:59:56.560 INFO kablam!    |
Nov 01 11:59:56.560 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 11:59:56.560 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:59:56.560 INFO kablam! 
Nov 01 11:59:56.646 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 01 11:59:56.646 INFO kablam!   --> src/main.rs:61:5
Nov 01 11:59:56.646 INFO kablam!    |
Nov 01 11:59:56.646 INFO kablam! 61 |     fs::copy(&file_path, file_path.as_ref().to_str().unwrap().to_owned() + ".bak");//.expect("File backup failed");
Nov 01 11:59:56.646 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 11:59:56.647 INFO kablam!    |
Nov 01 11:59:56.647 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 01 11:59:56.647 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 01 11:59:56.647 INFO kablam! 
Nov 01 11:59:56.676 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.80s
Nov 01 11:59:56.692 INFO kablam! su: No module specific data is present
Nov 01 11:59:57.490 INFO running `"docker" "rm" "-f" "57b983a3b9304a9a7237b100595b7f657397b99ff38472250ba400b03367eace"`
Nov 01 11:59:57.773 INFO blam! 57b983a3b9304a9a7237b100595b7f657397b99ff38472250ba400b03367eace