[INFO] cloning repository https://github.com/ntibi/wave-function-collapse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ntibi/wave-function-collapse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntibi%2Fwave-function-collapse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntibi%2Fwave-function-collapse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53313b48ab8c3cb5e357419d1aabac51a6f05d03
[INFO] checking ntibi/wave-function-collapse against da86f4d0726be475afbbffe40cb2f65741c51ad3 for pr-159877
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntibi%2Fwave-function-collapse" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ntibi/wave-function-collapse
[INFO] finished tweaking git repo https://github.com/ntibi/wave-function-collapse
[INFO] tweaked toml for git repo https://github.com/ntibi/wave-function-collapse written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ntibi/wave-function-collapse on toolchain da86f4d0726be475afbbffe40cb2f65741c51ad3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da86f4d0726be475afbbffe40cb2f65741c51ad3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da86f4d0726be475afbbffe40cb2f65741c51ad3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da86f4d0726be475afbbffe40cb2f65741c51ad3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/image.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 |     collections::{HashMap, HashSet, VecDeque},
[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 import: `HashSet`
[INFO] [stdout]  --> src/bin/image.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 |     collections::{HashMap, HashSet, VecDeque},
[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 variable: `permutations_fns`
[INFO] [stdout]    --> src/bin/image.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let permutations_fns: Vec<Box<dyn Fn(usize, usize) -> (usize, usize)>> = vec![
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_permutations_fns`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rules` is never read
[INFO] [stdout]    --> src/bin/image.rs:110:51
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut rules: Vec<Vec<Vec<PatternId>>> = Vec::new();
[INFO] [stdout]     |                                                   ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 175 |         rules = vec![vec![Vec::new(); (range * 2 + 1).pow(2)]; n_patterns];
[INFO] [stdout]     |         ----- `rules` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `permutations_fns`
[INFO] [stdout]    --> src/bin/image.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let permutations_fns: Vec<Box<dyn Fn(usize, usize) -> (usize, usize)>> = vec![
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_permutations_fns`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rules` is never read
[INFO] [stdout]    --> src/bin/image.rs:110:51
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut rules: Vec<Vec<Vec<PatternId>>> = Vec::new();
[INFO] [stdout]     |                                                   ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 175 |         rules = vec![vec![Vec::new(); (range * 2 + 1).pow(2)]; n_patterns];
[INFO] [stdout]     |         ----- `rules` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: winit v0.28.7
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 13`
[INFO] running `Command { std: "docker" "inspect" "eed5a7e84324130db56c81c5b8df462807bc994d930937356b2f9c57ab326d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eed5a7e84324130db56c81c5b8df462807bc994d930937356b2f9c57ab326d6d", kill_on_drop: false }`
[INFO] [stdout] eed5a7e84324130db56c81c5b8df462807bc994d930937356b2f9c57ab326d6d
