Dec 11 06:07:56.090 INFO checking wismer/caesar-cipher against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 06:07:56.090 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 06:07:56.433 INFO [stdout] 8ab57bc19587fd32a4d54b2e1e8c149ee886e885f0c9421841b2b2d653447e15
Dec 11 06:07:56.438 INFO running `"docker" "start" "-a" "8ab57bc19587fd32a4d54b2e1e8c149ee886e885f0c9421841b2b2d653447e15"`
Dec 11 06:07:57.027 INFO [stderr] usermod: no changes
Dec 11 06:07:57.055 INFO [stderr]     Checking caesar-cipher v0.1.0 (/source)
Dec 11 06:07:57.188 INFO [stderr] warning: unused import: `std::io`
Dec 11 06:07:57.188 INFO [stderr]  --> src/euler/euler.rs:1:5
Dec 11 06:07:57.188 INFO [stderr]   |
Dec 11 06:07:57.188 INFO [stderr] 1 | use std::io;
Dec 11 06:07:57.188 INFO [stderr]   |     ^^^^^^^
Dec 11 06:07:57.188 INFO [stderr]   |
Dec 11 06:07:57.188 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 06:07:57.188 INFO [stderr] 
Dec 11 06:07:57.193 INFO [stderr] warning: unused import: `std::io`
Dec 11 06:07:57.193 INFO [stderr]  --> src/euler/euler.rs:1:5
Dec 11 06:07:57.193 INFO [stderr]   |
Dec 11 06:07:57.193 INFO [stderr] 1 | use std::io;
Dec 11 06:07:57.193 INFO [stderr]   |     ^^^^^^^
Dec 11 06:07:57.193 INFO [stderr]   |
Dec 11 06:07:57.193 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 06:07:57.193 INFO [stderr] 
Dec 11 06:07:57.244 INFO [stderr] warning: unused variable: `remainder`
Dec 11 06:07:57.245 INFO [stderr]   --> src/euler/euler.rs:40:24
Dec 11 06:07:57.245 INFO [stderr]    |
Dec 11 06:07:57.245 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 11 06:07:57.245 INFO [stderr]    |                        ^^^^^^^^^ help: consider using `_remainder` instead
Dec 11 06:07:57.246 INFO [stderr]    |
Dec 11 06:07:57.246 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 06:07:57.246 INFO [stderr] 
Dec 11 06:07:57.246 INFO [stderr] warning: unused variable: `remainder`
Dec 11 06:07:57.247 INFO [stderr]   --> src/euler/euler.rs:40:24
Dec 11 06:07:57.247 INFO [stderr]    |
Dec 11 06:07:57.247 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 11 06:07:57.248 INFO [stderr]    |                        ^^^^^^^^^ help: consider using `_remainder` instead
Dec 11 06:07:57.248 INFO [stderr]    |
Dec 11 06:07:57.248 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 06:07:57.248 INFO [stderr] 
Dec 11 06:07:57.249 INFO [stderr] warning: variable does not need to be mutable
Dec 11 06:07:57.249 INFO [stderr]   --> src/euler/euler.rs:16:9
Dec 11 06:07:57.249 INFO [stderr]    |
Dec 11 06:07:57.249 INFO [stderr] 16 |     let mut total_number = 0u64;
Dec 11 06:07:57.250 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 11 06:07:57.250 INFO [stderr]    |         |
Dec 11 06:07:57.250 INFO [stderr]    |         help: remove this `mut`
Dec 11 06:07:57.251 INFO [stderr]    |
Dec 11 06:07:57.251 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 06:07:57.251 INFO [stderr] 
Dec 11 06:07:57.251 INFO [stderr] warning: variant is never constructed: `Neither`
Dec 11 06:07:57.251 INFO [stderr]  --> src/main.rs:6:5
Dec 11 06:07:57.251 INFO [stderr]   |
Dec 11 06:07:57.251 INFO [stderr] 6 |     Neither
Dec 11 06:07:57.251 INFO [stderr]   |     ^^^^^^^
Dec 11 06:07:57.251 INFO [stderr]   |
Dec 11 06:07:57.251 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 06:07:57.251 INFO [stderr] 
Dec 11 06:07:57.251 INFO [stderr] warning: function is never used: `calculate_remainder`
Dec 11 06:07:57.251 INFO [stderr]   --> src/euler/euler.rs:40:1
Dec 11 06:07:57.251 INFO [stderr]    |
Dec 11 06:07:57.251 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 11 06:07:57.251 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:07:57.251 INFO [stderr] 
Dec 11 06:07:57.251 INFO [stderr] warning: function is never used: `line_total`
Dec 11 06:07:57.251 INFO [stderr]   --> src/euler/euler.rs:44:1
Dec 11 06:07:57.251 INFO [stderr]    |
Dec 11 06:07:57.251 INFO [stderr] 44 | fn line_total(line: &str) -> u64 {
Dec 11 06:07:57.251 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:07:57.251 INFO [stderr] 
Dec 11 06:07:57.256 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 06:07:57.256 INFO [stderr]   --> src/euler/euler.rs:14:5
Dec 11 06:07:57.257 INFO [stderr]    |
Dec 11 06:07:57.257 INFO [stderr] 14 |     file.read_to_string(&mut contents);
Dec 11 06:07:57.257 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:07:57.258 INFO [stderr]    |
Dec 11 06:07:57.258 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 06:07:57.258 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 06:07:57.258 INFO [stderr] 
Dec 11 06:07:57.259 INFO [stderr] warning: variable does not need to be mutable
Dec 11 06:07:57.259 INFO [stderr]   --> src/euler/euler.rs:16:9
Dec 11 06:07:57.259 INFO [stderr]    |
Dec 11 06:07:57.259 INFO [stderr] 16 |     let mut total_number = 0u64;
Dec 11 06:07:57.260 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 11 06:07:57.260 INFO [stderr]    |         |
Dec 11 06:07:57.260 INFO [stderr]    |         help: remove this `mut`
Dec 11 06:07:57.260 INFO [stderr]    |
Dec 11 06:07:57.261 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 06:07:57.261 INFO [stderr] 
Dec 11 06:07:57.261 INFO [stderr] warning: variant is never constructed: `Neither`
Dec 11 06:07:57.261 INFO [stderr]  --> src/main.rs:6:5
Dec 11 06:07:57.261 INFO [stderr]   |
Dec 11 06:07:57.262 INFO [stderr] 6 |     Neither
Dec 11 06:07:57.262 INFO [stderr]   |     ^^^^^^^
Dec 11 06:07:57.262 INFO [stderr]   |
Dec 11 06:07:57.262 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 06:07:57.263 INFO [stderr] 
Dec 11 06:07:57.263 INFO [stderr] warning: function is never used: `calculate_remainder`
Dec 11 06:07:57.263 INFO [stderr]   --> src/euler/euler.rs:40:1
Dec 11 06:07:57.263 INFO [stderr]    |
Dec 11 06:07:57.263 INFO [stderr] 40 | fn calculate_remainder(remainder: &mut i32) {
Dec 11 06:07:57.264 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:07:57.264 INFO [stderr] 
Dec 11 06:07:57.264 INFO [stderr] warning: function is never used: `line_total`
Dec 11 06:07:57.264 INFO [stderr]   --> src/euler/euler.rs:44:1
Dec 11 06:07:57.264 INFO [stderr]    |
Dec 11 06:07:57.264 INFO [stderr] 44 | fn line_total(line: &str) -> u64 {
Dec 11 06:07:57.264 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:07:57.264 INFO [stderr] 
Dec 11 06:07:57.270 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 06:07:57.270 INFO [stderr]   --> src/euler/euler.rs:14:5
Dec 11 06:07:57.270 INFO [stderr]    |
Dec 11 06:07:57.270 INFO [stderr] 14 |     file.read_to_string(&mut contents);
Dec 11 06:07:57.270 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:07:57.270 INFO [stderr]    |
Dec 11 06:07:57.270 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 06:07:57.270 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 06:07:57.270 INFO [stderr] 
Dec 11 06:07:57.283 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
Dec 11 06:07:57.285 INFO [stderr] su: No module specific data is present
Dec 11 06:07:57.872 INFO running `"docker" "inspect" "8ab57bc19587fd32a4d54b2e1e8c149ee886e885f0c9421841b2b2d653447e15"`
Dec 11 06:07:58.206 INFO running `"docker" "rm" "-f" "8ab57bc19587fd32a4d54b2e1e8c149ee886e885f0c9421841b2b2d653447e15"`
Dec 11 06:07:58.384 INFO [stdout] 8ab57bc19587fd32a4d54b2e1e8c149ee886e885f0c9421841b2b2d653447e15