[INFO] cloning repository https://github.com/Somnid/code-crackers
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Somnid/code-crackers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSomnid%2Fcode-crackers"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSomnid%2Fcode-crackers'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f86147253a6de97f1ed073f1ee3d3984cbe78661
[INFO] checking Somnid/code-crackers against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSomnid%2Fcode-crackers" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Somnid/code-crackers on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Somnid/code-crackers
[INFO] finished tweaking git repo https://github.com/Somnid/code-crackers
[INFO] tweaked toml for git repo https://github.com/Somnid/code-crackers written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Somnid/code-crackers already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7c15c3b6be2baee7375193183090baed30518f3e971d12b44cb0a5b8dad823fa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7c15c3b6be2baee7375193183090baed30518f3e971d12b44cb0a5b8dad823fa"`
[INFO] [stderr]     Checking code-crack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `get_bit_size`
[INFO] [stderr]  --> src/lib.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn get_bit_size(num: u32) -> u32 {
[INFO] [stderr]   |    ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_fixed_binary_vec`
[INFO] [stderr]   --> src/lib.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn to_fixed_binary_vec(num: u32, bit_size: u32) -> Vec<bool> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_least_sum`
[INFO] [stderr]   --> src/lib.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn get_least_sum(input: Vec<i32>, set_pattern: Vec<bool>) -> Option<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_least_sum_sets`
[INFO] [stderr]   --> src/lib.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn get_least_sum_sets(input: Vec<i32>) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "7c15c3b6be2baee7375193183090baed30518f3e971d12b44cb0a5b8dad823fa"`
[INFO] running `"docker" "rm" "-f" "7c15c3b6be2baee7375193183090baed30518f3e971d12b44cb0a5b8dad823fa"`
[INFO] [stdout] 7c15c3b6be2baee7375193183090baed30518f3e971d12b44cb0a5b8dad823fa