Dec 19 15:38:17.427 INFO checking irazorx1/lucky_check against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 15:38:17.427 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/irazorx1/lucky_check:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:38:17.703 INFO [stdout] 9f675d7407c4a77ba18b3fe2d68bee4a2574db8aed87331f28b559162a29a588
Dec 19 15:38:17.722 INFO running `"docker" "start" "-a" "9f675d7407c4a77ba18b3fe2d68bee4a2574db8aed87331f28b559162a29a588"`
Dec 19 15:38:18.321 INFO [stderr]     Checking lucky_check v0.1.0 (/opt/crater/workdir)
Dec 19 15:38:18.588 INFO [stderr] warning: unused import: `black_box`
Dec 19 15:38:18.588 INFO [stderr]   --> src/main.rs:97:25
Dec 19 15:38:18.588 INFO [stderr]    |
Dec 19 15:38:18.588 INFO [stderr] 97 |     use test::{Bencher, black_box};
Dec 19 15:38:18.588 INFO [stderr]    |                         ^^^^^^^^^
Dec 19 15:38:18.588 INFO [stderr]    |
Dec 19 15:38:18.588 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 15:38:18.588 INFO [stderr] 
Dec 19 15:38:18.588 INFO [stderr] warning: unused import: `rayon::*`
Dec 19 15:38:18.588 INFO [stderr]   --> src/main.rs:98:9
Dec 19 15:38:18.588 INFO [stderr]    |
Dec 19 15:38:18.588 INFO [stderr] 98 |     use rayon::*;
Dec 19 15:38:18.588 INFO [stderr]    |         ^^^^^^^^
Dec 19 15:38:18.588 INFO [stderr] 
Dec 19 15:38:18.665 INFO [stderr] warning: unused import: `rayon::prelude`
Dec 19 15:38:18.665 INFO [stderr]   --> src/main.rs:82:5
Dec 19 15:38:18.665 INFO [stderr]    |
Dec 19 15:38:18.665 INFO [stderr] 82 | use rayon::prelude::*;
Dec 19 15:38:18.665 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 19 15:38:18.665 INFO [stderr]    |
Dec 19 15:38:18.665 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 15:38:18.665 INFO [stderr] 
Dec 19 15:38:18.665 INFO [stderr] warning: value assigned to `last_digit` is never read
Dec 19 15:38:18.665 INFO [stderr]   --> src/main.rs:19:13
Dec 19 15:38:18.665 INFO [stderr]    |
Dec 19 15:38:18.665 INFO [stderr] 19 |     let mut last_digit = 0;
Dec 19 15:38:18.665 INFO [stderr]    |             ^^^^^^^^^^
Dec 19 15:38:18.665 INFO [stderr]    |
Dec 19 15:38:18.665 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 15:38:18.665 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 15:38:18.665 INFO [stderr] 
Dec 19 15:38:18.665 INFO [stderr] warning: variable does not need to be mutable
Dec 19 15:38:18.665 INFO [stderr]  --> src/main.rs:7:9
Dec 19 15:38:18.665 INFO [stderr]   |
Dec 19 15:38:18.665 INFO [stderr] 7 |     let mut s = num.to_string();
Dec 19 15:38:18.665 INFO [stderr]   |         ----^
Dec 19 15:38:18.665 INFO [stderr]   |         |
Dec 19 15:38:18.665 INFO [stderr]   |         help: remove this `mut`
Dec 19 15:38:18.665 INFO [stderr]   |
Dec 19 15:38:18.665 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 15:38:18.665 INFO [stderr] 
Dec 19 15:38:18.665 INFO [stderr] warning: function is never used: `is_lucky_string`
Dec 19 15:38:18.665 INFO [stderr]  --> src/main.rs:6:1
Dec 19 15:38:18.665 INFO [stderr]   |
Dec 19 15:38:18.665 INFO [stderr] 6 | fn is_lucky_string(num: u32) -> bool {
Dec 19 15:38:18.665 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:38:18.665 INFO [stderr]   |
Dec 19 15:38:18.665 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 15:38:18.665 INFO [stderr] 
Dec 19 15:38:18.665 INFO [stderr] warning: function is never used: `is_lucky_u32_2`
Dec 19 15:38:18.665 INFO [stderr]   --> src/main.rs:55:1
Dec 19 15:38:18.665 INFO [stderr]    |
Dec 19 15:38:18.665 INFO [stderr] 55 | fn is_lucky_u32_2(number: u32) -> bool {
Dec 19 15:38:18.665 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:38:18.665 INFO [stderr] 
Dec 19 15:38:18.665 INFO [stderr] warning: function is never used: `contains_number`
Dec 19 15:38:18.665 INFO [stderr]   --> src/main.rs:65:1
Dec 19 15:38:18.665 INFO [stderr]    |
Dec 19 15:38:18.665 INFO [stderr] 65 | fn contains_number(number: u32, check: u32) -> bool {
Dec 19 15:38:18.665 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:38:18.665 INFO [stderr] 
Dec 19 15:38:18.721 INFO [stderr] warning: unused import: `rayon::prelude`
Dec 19 15:38:18.721 INFO [stderr]   --> src/main.rs:82:5
Dec 19 15:38:18.721 INFO [stderr]    |
Dec 19 15:38:18.721 INFO [stderr] 82 | use rayon::prelude::*;
Dec 19 15:38:18.721 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 19 15:38:18.721 INFO [stderr] 
Dec 19 15:38:18.724 INFO [stderr] warning: value assigned to `last_digit` is never read
Dec 19 15:38:18.725 INFO [stderr]   --> src/main.rs:19:13
Dec 19 15:38:18.725 INFO [stderr]    |
Dec 19 15:38:18.725 INFO [stderr] 19 |     let mut last_digit = 0;
Dec 19 15:38:18.725 INFO [stderr]    |             ^^^^^^^^^^
Dec 19 15:38:18.725 INFO [stderr]    |
Dec 19 15:38:18.725 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 15:38:18.725 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 15:38:18.725 INFO [stderr] 
Dec 19 15:38:18.728 INFO [stderr] warning: variable does not need to be mutable
Dec 19 15:38:18.728 INFO [stderr]  --> src/main.rs:7:9
Dec 19 15:38:18.728 INFO [stderr]   |
Dec 19 15:38:18.728 INFO [stderr] 7 |     let mut s = num.to_string();
Dec 19 15:38:18.728 INFO [stderr]   |         ----^
Dec 19 15:38:18.728 INFO [stderr]   |         |
Dec 19 15:38:18.728 INFO [stderr]   |         help: remove this `mut`
Dec 19 15:38:18.728 INFO [stderr]   |
Dec 19 15:38:18.728 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 19 15:38:18.728 INFO [stderr] 
Dec 19 15:38:18.764 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
Dec 19 15:38:19.158 INFO running `"docker" "inspect" "9f675d7407c4a77ba18b3fe2d68bee4a2574db8aed87331f28b559162a29a588"`
Dec 19 15:38:19.222 INFO running `"docker" "rm" "-f" "9f675d7407c4a77ba18b3fe2d68bee4a2574db8aed87331f28b559162a29a588"`
Dec 19 15:38:19.283 INFO [stdout] 9f675d7407c4a77ba18b3fe2d68bee4a2574db8aed87331f28b559162a29a588