[INFO] cloning repository https://github.com/sim82/rusdoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sim82/rusdoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsim82%2Frusdoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsim82%2Frusdoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1cd9e52b8b71f1a5d767efdb02c1e5de09a7378
[INFO] checking sim82/rusdoku against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsim82%2Frusdoku" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sim82/rusdoku
[INFO] finished tweaking git repo https://github.com/sim82/rusdoku
[INFO] tweaked toml for git repo https://github.com/sim82/rusdoku written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sim82/rusdoku on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sim82/rusdoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitset-core v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6e1427cb39efb47110797be9c4bbbd2dd0c63ec244a719201a7fdc800f04ddcf
[INFO] running `Command { std: "docker" "start" "6e1427cb39efb47110797be9c4bbbd2dd0c63ec244a719201a7fdc800f04ddcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e1427cb39efb47110797be9c4bbbd2dd0c63ec244a719201a7fdc800f04ddcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6e1427cb39efb47110797be9c4bbbd2dd0c63ec244a719201a7fdc800f04ddcf" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e1427cb39efb47110797be9c4bbbd2dd0c63ec244a719201a7fdc800f04ddcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6e1427cb39efb47110797be9c4bbbd2dd0c63ec244a719201a7fdc800f04ddcf" "/opt/rustwide/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking bitset-core v0.1.1
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking rusdoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `COUNT_ONES` is never used
[INFO] [stdout]   --> src/bin/iterative_minimize.rs:50:7
[INFO] [stdout]    |
[INFO] [stdout] 50 | const COUNT_ONES : [u8; 256] = [
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRAILING_ZEROS` is never used
[INFO] [stdout]   --> src/bin/iterative_minimize.rs:70:7
[INFO] [stdout]    |
[INFO] [stdout] 70 | const TRAILING_ZEROS: [u8; 256] = [
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bit_set::BitSet`
[INFO] [stdout]  --> src/bin/easy.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bit_set::BitSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeSet` and `HashSet`
[INFO] [stdout]  --> src/bin/easy.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{BTreeSet, HashSet};
[INFO] [stdout]   |                        ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bit_set::BitSet`
[INFO] [stdout]  --> src/bin/elim.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bit_set::BitSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeSet` and `HashSet`
[INFO] [stdout]  --> src/bin/elim.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{BTreeSet, HashSet};
[INFO] [stdout]   |                        ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bit_set::BitSet`
[INFO] [stdout]  --> src/bin/easy.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bit_set::BitSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeSet` and `HashSet`
[INFO] [stdout]  --> src/bin/easy.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{BTreeSet, HashSet};
[INFO] [stdout]   |                        ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bit_set::BitSet`
[INFO] [stdout]  --> src/bin/elim.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bit_set::BitSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeSet` and `HashSet`
[INFO] [stdout]  --> src/bin/elim.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{BTreeSet, HashSet};
[INFO] [stdout]   |                        ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COUNT_ONES` is never used
[INFO] [stdout]   --> src/bin/iterative_minimize.rs:50:7
[INFO] [stdout]    |
[INFO] [stdout] 50 | const COUNT_ONES : [u8; 256] = [
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRAILING_ZEROS` is never used
[INFO] [stdout]   --> src/bin/iterative_minimize.rs:70:7
[INFO] [stdout]    |
[INFO] [stdout] 70 | const TRAILING_ZEROS: [u8; 256] = [
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/elim.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let mut board = Board::default();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/elimf.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let mut board = Board::default();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/elim_ex.rs:285:13
[INFO] [stdout]     |
[INFO] [stdout] 285 |         let mut board = Board::default();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/iterative_inplace.rs:294:13
[INFO] [stdout]     |
[INFO] [stdout] 294 |         let mut board = Board::default();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/iterative.rs:298:13
[INFO] [stdout]     |
[INFO] [stdout] 298 |         let mut board = Board::default();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `fixedbitset`
[INFO] [stderr]  --> Cargo.toml:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fixedbitset = "0.5.7"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `fixedbitset`
[INFO] [stderr] warning: `rusdoku` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "6e1427cb39efb47110797be9c4bbbd2dd0c63ec244a719201a7fdc800f04ddcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e1427cb39efb47110797be9c4bbbd2dd0c63ec244a719201a7fdc800f04ddcf", kill_on_drop: false }`
[INFO] [stdout] 6e1427cb39efb47110797be9c4bbbd2dd0c63ec244a719201a7fdc800f04ddcf
