Dec 17 11:54:54.353 INFO checking wismer/caesar-cipher against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 11:54:54.353 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/wismer/caesar-cipher:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 11:54:54.980 INFO [stdout] 1200f96fe564550540c4b303ed692895245745bf25aa9840c1ce526b362d6f30
Dec 17 11:54:54.986 INFO running `"docker" "start" "-a" "1200f96fe564550540c4b303ed692895245745bf25aa9840c1ce526b362d6f30"`
Dec 17 11:54:56.652 INFO [stderr]     Checking caesar-cipher v0.1.0 (/opt/crater/workdir)
Dec 17 11:54:57.016 INFO [stderr] warning: unused import: `std::io`
Dec 17 11:54:57.016 INFO [stderr]  --> src/euler/euler.rs:1:5
Dec 17 11:54:57.016 INFO [stderr]   |
Dec 17 11:54:57.016 INFO [stderr] 1 | use std::io;
Dec 17 11:54:57.016 INFO [stderr]   |     ^^^^^^^
Dec 17 11:54:57.016 INFO [stderr]   |
Dec 17 11:54:57.016 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 11:54:57.016 INFO [stderr] 
Dec 17 11:54:57.032 INFO [stderr] warning: unused import: `std::io`
Dec 17 11:54:57.032 INFO [stderr]  --> src/euler/euler.rs:1:5
Dec 17 11:54:57.032 INFO [stderr]   |
Dec 17 11:54:57.032 INFO [stderr] 1 | use std::io;
Dec 17 11:54:57.032 INFO [stderr]   |     ^^^^^^^
Dec 17 11:54:57.032 INFO [stderr]   |
Dec 17 11:54:57.032 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 11:54:57.032 INFO [stderr] 
Dec 17 11:54:57.116 INFO [stderr] warning: unused variable: `remainder`
Dec 17 11:54:57.116 INFO [stderr]   --> src/euler/euler.rs:40:24
Dec 17 11:54:57.116 INFO [stderr]    |
Dec 17 11:54:57.116 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 17 11:54:57.116 INFO [stderr]    |                        ^^^^^^^^^ help: consider using `_remainder` instead
Dec 17 11:54:57.116 INFO [stderr]    |
Dec 17 11:54:57.116 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 11:54:57.116 INFO [stderr] 
Dec 17 11:54:57.117 INFO [stderr] warning: unused variable: `remainder`
Dec 17 11:54:57.117 INFO [stderr]   --> src/euler/euler.rs:40:24
Dec 17 11:54:57.117 INFO [stderr]    |
Dec 17 11:54:57.117 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 17 11:54:57.117 INFO [stderr]    |                        ^^^^^^^^^ help: consider using `_remainder` instead
Dec 17 11:54:57.117 INFO [stderr]    |
Dec 17 11:54:57.117 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 11:54:57.117 INFO [stderr] 
Dec 17 11:54:57.153 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:54:57.153 INFO [stderr]   --> src/euler/euler.rs:16:9
Dec 17 11:54:57.153 INFO [stderr]    |
Dec 17 11:54:57.153 INFO [stderr] 16 |     let mut total_number = 0u64;
Dec 17 11:54:57.153 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 17 11:54:57.153 INFO [stderr]    |         |
Dec 17 11:54:57.153 INFO [stderr]    |         help: remove this `mut`
Dec 17 11:54:57.153 INFO [stderr]    |
Dec 17 11:54:57.153 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 11:54:57.153 INFO [stderr] 
Dec 17 11:54:57.154 INFO [stderr] warning: variant is never constructed: `Neither`
Dec 17 11:54:57.154 INFO [stderr]  --> src/main.rs:6:5
Dec 17 11:54:57.154 INFO [stderr]   |
Dec 17 11:54:57.154 INFO [stderr] 6 |     Neither
Dec 17 11:54:57.154 INFO [stderr]   |     ^^^^^^^
Dec 17 11:54:57.154 INFO [stderr]   |
Dec 17 11:54:57.154 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 11:54:57.154 INFO [stderr] 
Dec 17 11:54:57.154 INFO [stderr] warning: function is never used: `calculate_remainder`
Dec 17 11:54:57.154 INFO [stderr]   --> src/euler/euler.rs:40:1
Dec 17 11:54:57.154 INFO [stderr]    |
Dec 17 11:54:57.154 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 17 11:54:57.154 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:54:57.154 INFO [stderr] 
Dec 17 11:54:57.154 INFO [stderr] warning: function is never used: `line_total`
Dec 17 11:54:57.154 INFO [stderr]   --> src/euler/euler.rs:44:1
Dec 17 11:54:57.154 INFO [stderr]    |
Dec 17 11:54:57.154 INFO [stderr] 44 | fn line_total(line: &str) -> u64 {
Dec 17 11:54:57.154 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:54:57.154 INFO [stderr] 
Dec 17 11:54:57.155 INFO [stderr] warning: variable does not need to be mutable
Dec 17 11:54:57.155 INFO [stderr]   --> src/euler/euler.rs:16:9
Dec 17 11:54:57.155 INFO [stderr]    |
Dec 17 11:54:57.155 INFO [stderr] 16 |     let mut total_number = 0u64;
Dec 17 11:54:57.155 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 17 11:54:57.155 INFO [stderr]    |         |
Dec 17 11:54:57.155 INFO [stderr]    |         help: remove this `mut`
Dec 17 11:54:57.155 INFO [stderr]    |
Dec 17 11:54:57.155 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 11:54:57.155 INFO [stderr] 
Dec 17 11:54:57.156 INFO [stderr] warning: variant is never constructed: `Neither`
Dec 17 11:54:57.156 INFO [stderr]  --> src/main.rs:6:5
Dec 17 11:54:57.156 INFO [stderr]   |
Dec 17 11:54:57.156 INFO [stderr] 6 |     Neither
Dec 17 11:54:57.156 INFO [stderr]   |     ^^^^^^^
Dec 17 11:54:57.156 INFO [stderr]   |
Dec 17 11:54:57.156 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 11:54:57.156 INFO [stderr] 
Dec 17 11:54:57.156 INFO [stderr] warning: function is never used: `calculate_remainder`
Dec 17 11:54:57.156 INFO [stderr]   --> src/euler/euler.rs:40:1
Dec 17 11:54:57.156 INFO [stderr]    |
Dec 17 11:54:57.156 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 17 11:54:57.156 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:54:57.156 INFO [stderr] 
Dec 17 11:54:57.156 INFO [stderr] warning: function is never used: `line_total`
Dec 17 11:54:57.156 INFO [stderr]   --> src/euler/euler.rs:44:1
Dec 17 11:54:57.156 INFO [stderr]    |
Dec 17 11:54:57.156 INFO [stderr] 44 | fn line_total(line: &str) -> u64 {
Dec 17 11:54:57.156 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:54:57.156 INFO [stderr] 
Dec 17 11:54:57.163 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:54:57.163 INFO [stderr]   --> src/euler/euler.rs:14:5
Dec 17 11:54:57.163 INFO [stderr]    |
Dec 17 11:54:57.163 INFO [stderr] 14 |     file.read_to_string(&mut contents);
Dec 17 11:54:57.163 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:54:57.163 INFO [stderr]    |
Dec 17 11:54:57.172 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 11:54:57.172 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:54:57.172 INFO [stderr]   --> src/euler/euler.rs:14:5
Dec 17 11:54:57.172 INFO [stderr]    |
Dec 17 11:54:57.172 INFO [stderr] 14 |     file.read_to_string(&mut contents);
Dec 17 11:54:57.172 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:54:57.172 INFO [stderr]    |
Dec 17 11:54:57.172 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 11:54:57.172 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:54:57.172 INFO [stderr] 
Dec 17 11:54:57.172 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:54:57.172 INFO [stderr] 
Dec 17 11:54:57.216 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Dec 17 11:54:58.349 INFO running `"docker" "inspect" "1200f96fe564550540c4b303ed692895245745bf25aa9840c1ce526b362d6f30"`
Dec 17 11:54:58.706 INFO running `"docker" "rm" "-f" "1200f96fe564550540c4b303ed692895245745bf25aa9840c1ce526b362d6f30"`
Dec 17 11:54:59.049 INFO [stdout] 1200f96fe564550540c4b303ed692895245745bf25aa9840c1ce526b362d6f30