Dec 04 07:02:33.456 INFO checking wismer/caesar-cipher against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 07:02:33.456 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 07:02:33.843 INFO [stdout] 2bf5236b896140495254fbfa0a56c8bbc0d50a7cc6fd1912e234b0b8ccc8a0fb
Dec 04 07:02:33.851 INFO running `"docker" "start" "-a" "2bf5236b896140495254fbfa0a56c8bbc0d50a7cc6fd1912e234b0b8ccc8a0fb"`
Dec 04 07:02:35.157 INFO [stderr] usermod: no changes
Dec 04 07:02:35.205 INFO [stderr]     Checking caesar-cipher v0.1.0 (/source)
Dec 04 07:02:35.579 INFO [stderr] warning: unused import: `std::io`
Dec 04 07:02:35.579 INFO [stderr]  --> src/euler/euler.rs:1:5
Dec 04 07:02:35.579 INFO [stderr]   |
Dec 04 07:02:35.579 INFO [stderr] 1 | use std::io;
Dec 04 07:02:35.579 INFO [stderr]   |     ^^^^^^^
Dec 04 07:02:35.579 INFO [stderr]   |
Dec 04 07:02:35.579 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 07:02:35.579 INFO [stderr] 
Dec 04 07:02:35.583 INFO [stderr] warning: unused import: `std::io`
Dec 04 07:02:35.583 INFO [stderr]  --> src/euler/euler.rs:1:5
Dec 04 07:02:35.583 INFO [stderr]   |
Dec 04 07:02:35.583 INFO [stderr] 1 | use std::io;
Dec 04 07:02:35.583 INFO [stderr]   |     ^^^^^^^
Dec 04 07:02:35.583 INFO [stderr]   |
Dec 04 07:02:35.583 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 07:02:35.583 INFO [stderr] 
Dec 04 07:02:35.683 INFO [stderr] warning: unused variable: `remainder`
Dec 04 07:02:35.683 INFO [stderr]   --> src/euler/euler.rs:40:24
Dec 04 07:02:35.683 INFO [stderr]    |
Dec 04 07:02:35.683 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 04 07:02:35.683 INFO [stderr]    |                        ^^^^^^^^^ help: consider using `_remainder` instead
Dec 04 07:02:35.683 INFO [stderr]    |
Dec 04 07:02:35.683 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:02:35.683 INFO [stderr] 
Dec 04 07:02:35.695 INFO [stderr] warning: unused variable: `remainder`
Dec 04 07:02:35.695 INFO [stderr]   --> src/euler/euler.rs:40:24
Dec 04 07:02:35.695 INFO [stderr]    |
Dec 04 07:02:35.695 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 04 07:02:35.695 INFO [stderr]    |                        ^^^^^^^^^ help: consider using `_remainder` instead
Dec 04 07:02:35.695 INFO [stderr]    |
Dec 04 07:02:35.695 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:02:35.695 INFO [stderr] 
Dec 04 07:02:35.698 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:02:35.698 INFO [stderr]   --> src/euler/euler.rs:16:9
Dec 04 07:02:35.698 INFO [stderr]    |
Dec 04 07:02:35.698 INFO [stderr] 16 |     let mut total_number = 0u64;
Dec 04 07:02:35.698 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 04 07:02:35.698 INFO [stderr]    |         |
Dec 04 07:02:35.698 INFO [stderr]    |         help: remove this `mut`
Dec 04 07:02:35.698 INFO [stderr]    |
Dec 04 07:02:35.698 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 07:02:35.698 INFO [stderr] 
Dec 04 07:02:35.703 INFO [stderr] warning: variant is never constructed: `Neither`
Dec 04 07:02:35.703 INFO [stderr]  --> src/main.rs:6:5
Dec 04 07:02:35.703 INFO [stderr]   |
Dec 04 07:02:35.703 INFO [stderr] 6 |     Neither
Dec 04 07:02:35.703 INFO [stderr]   |     ^^^^^^^
Dec 04 07:02:35.703 INFO [stderr]   |
Dec 04 07:02:35.703 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 07:02:35.703 INFO [stderr] 
Dec 04 07:02:35.703 INFO [stderr] warning: function is never used: `calculate_remainder`
Dec 04 07:02:35.703 INFO [stderr]   --> src/euler/euler.rs:40:1
Dec 04 07:02:35.703 INFO [stderr]    |
Dec 04 07:02:35.703 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 04 07:02:35.703 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:02:35.703 INFO [stderr] 
Dec 04 07:02:35.703 INFO [stderr] warning: function is never used: `line_total`
Dec 04 07:02:35.703 INFO [stderr]   --> src/euler/euler.rs:44:1
Dec 04 07:02:35.703 INFO [stderr]    |
Dec 04 07:02:35.703 INFO [stderr] 44 | fn line_total(line: &str) -> u64 {
Dec 04 07:02:35.703 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:02:35.703 INFO [stderr] 
Dec 04 07:02:35.710 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:02:35.710 INFO [stderr]   --> src/euler/euler.rs:14:5
Dec 04 07:02:35.710 INFO [stderr]    |
Dec 04 07:02:35.710 INFO [stderr] 14 |     file.read_to_string(&mut contents);
Dec 04 07:02:35.710 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:02:35.710 INFO [stderr]    |
Dec 04 07:02:35.710 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 07:02:35.710 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:02:35.710 INFO [stderr] 
Dec 04 07:02:35.719 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:02:35.719 INFO [stderr]   --> src/euler/euler.rs:16:9
Dec 04 07:02:35.719 INFO [stderr]    |
Dec 04 07:02:35.719 INFO [stderr] 16 |     let mut total_number = 0u64;
Dec 04 07:02:35.719 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 04 07:02:35.719 INFO [stderr]    |         |
Dec 04 07:02:35.719 INFO [stderr]    |         help: remove this `mut`
Dec 04 07:02:35.719 INFO [stderr]    |
Dec 04 07:02:35.719 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 07:02:35.719 INFO [stderr] 
Dec 04 07:02:35.719 INFO [stderr] warning: variant is never constructed: `Neither`
Dec 04 07:02:35.719 INFO [stderr]  --> src/main.rs:6:5
Dec 04 07:02:35.719 INFO [stderr]   |
Dec 04 07:02:35.719 INFO [stderr] 6 |     Neither
Dec 04 07:02:35.719 INFO [stderr]   |     ^^^^^^^
Dec 04 07:02:35.719 INFO [stderr]   |
Dec 04 07:02:35.719 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 07:02:35.719 INFO [stderr] 
Dec 04 07:02:35.719 INFO [stderr] warning: function is never used: `calculate_remainder`
Dec 04 07:02:35.719 INFO [stderr]   --> src/euler/euler.rs:40:1
Dec 04 07:02:35.719 INFO [stderr]    |
Dec 04 07:02:35.719 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 04 07:02:35.719 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:02:35.719 INFO [stderr] 
Dec 04 07:02:35.719 INFO [stderr] warning: function is never used: `line_total`
Dec 04 07:02:35.719 INFO [stderr]   --> src/euler/euler.rs:44:1
Dec 04 07:02:35.719 INFO [stderr]    |
Dec 04 07:02:35.720 INFO [stderr] 44 | fn line_total(line: &str) -> u64 {
Dec 04 07:02:35.720 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:02:35.720 INFO [stderr] 
Dec 04 07:02:35.735 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:02:35.735 INFO [stderr]   --> src/euler/euler.rs:14:5
Dec 04 07:02:35.735 INFO [stderr]    |
Dec 04 07:02:35.735 INFO [stderr] 14 |     file.read_to_string(&mut contents);
Dec 04 07:02:35.735 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:02:35.735 INFO [stderr]    |
Dec 04 07:02:35.735 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 07:02:35.735 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:02:35.735 INFO [stderr] 
Dec 04 07:02:35.789 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Dec 04 07:02:35.789 INFO [stderr] su: No module specific data is present
Dec 04 07:02:36.853 INFO running `"docker" "inspect" "2bf5236b896140495254fbfa0a56c8bbc0d50a7cc6fd1912e234b0b8ccc8a0fb"`
Dec 04 07:02:37.259 INFO running `"docker" "rm" "-f" "2bf5236b896140495254fbfa0a56c8bbc0d50a7cc6fd1912e234b0b8ccc8a0fb"`
Dec 04 07:02:37.535 INFO [stdout] 2bf5236b896140495254fbfa0a56c8bbc0d50a7cc6fd1912e234b0b8ccc8a0fb