[INFO] cloning repository https://github.com/s1gtrap/popeye
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/s1gtrap/popeye" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs1gtrap%2Fpopeye", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs1gtrap%2Fpopeye'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92e5e26707664055a76e1abaffe84ac000197cde
[INFO] testing s1gtrap/popeye against 1.85.0 for beta-1.86-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fs1gtrap%2Fpopeye" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/s1gtrap/popeye on toolchain 1.85.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/s1gtrap/popeye
[INFO] finished tweaking git repo https://github.com/s1gtrap/popeye
[INFO] tweaked toml for git repo https://github.com/s1gtrap/popeye written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/s1gtrap/popeye 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" "+1.85.0" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8472398a02b8f379f083b10e5b50940a87a5c8e4c9105ab13d85f0039c9247c
[INFO] running `Command { std: "docker" "start" "-a" "e8472398a02b8f379f083b10e5b50940a87a5c8e4c9105ab13d85f0039c9247c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8472398a02b8f379f083b10e5b50940a87a5c8e4c9105ab13d85f0039c9247c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8472398a02b8f379f083b10e5b50940a87a5c8e4c9105ab13d85f0039c9247c", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 783270a4c0e8efd951e9118d62ae8c4476baf66e13a969ac702b0b39c9056676
[INFO] running `Command { std: "docker" "start" "-a" "783270a4c0e8efd951e9118d62ae8c4476baf66e13a969ac702b0b39c9056676", kill_on_drop: false }`
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[INFO] [stderr]    Compiling futures v0.3.25
[INFO] [stderr]    Compiling pinned v0.1.0
[INFO] [stderr]    Compiling prokio v0.1.0
[INFO] [stderr]    Compiling web-sys v0.3.60
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.33
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[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling serde-wasm-bindgen v0.3.1
[INFO] [stderr]    Compiling gloo-utils v0.1.6
[INFO] [stderr]    Compiling gloo-events v0.1.2
[INFO] [stderr]    Compiling gloo-dialogs v0.1.1
[INFO] [stderr]    Compiling gloo-render v0.1.1
[INFO] [stderr]    Compiling wasm-log v0.3.1
[INFO] [stderr]    Compiling gloo-file v0.2.3
[INFO] [stderr]    Compiling gloo-console v0.2.3
[INFO] [stderr]    Compiling gloo-storage v0.2.2
[INFO] [stderr]    Compiling gloo-history v0.1.2
[INFO] [stderr]    Compiling gloo-net v0.2.5
[INFO] [stderr]    Compiling gloo-worker v0.2.1
[INFO] [stderr]    Compiling gloo v0.8.0
[INFO] [stderr]    Compiling yew v0.20.0
[INFO] [stderr]    Compiling popeye v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Exercise`
[INFO] [stdout]  --> src/select.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::data::{Exercise, EXERCISES};
[INFO] [stdout]   |                   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yew::prelude::*`
[INFO] [stdout]   --> src/select.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use yew::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::once`
[INFO] [stdout]  --> src/set.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::once;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Equipment`
[INFO] [stdout]  --> src/set.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::data::{Equipment, Exercise, EXERCISES};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g1`
[INFO] [stdout]   --> src/app.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut g1: UnGraph<(), ()> = UnGraph::new_undirected();
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_g1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nodes`
[INFO] [stdout]   --> src/app.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut nodes = VecDeque::from(nodes);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_nodes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut g1: UnGraph<(), ()> = UnGraph::new_undirected();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut nodes = VecDeque::from(nodes);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/app.rs:167:22
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 let (g, _) = (*s).iter().flatten().fold(
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/app.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |             g.neighbors(n).collect::<HashSet<_>>();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let _ = g.neighbors(n).collect::<HashSet<_>>();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.14s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.83
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "783270a4c0e8efd951e9118d62ae8c4476baf66e13a969ac702b0b39c9056676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "783270a4c0e8efd951e9118d62ae8c4476baf66e13a969ac702b0b39c9056676", kill_on_drop: false }`
[INFO] [stdout] 783270a4c0e8efd951e9118d62ae8c4476baf66e13a969ac702b0b39c9056676
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e7a4e469e2f68336c0890275618d56ed7e7465c4026937802350a0c09d2a49c
[INFO] running `Command { std: "docker" "start" "-a" "0e7a4e469e2f68336c0890275618d56ed7e7465c4026937802350a0c09d2a49c", kill_on_drop: false }`
[INFO] [stderr]    Compiling popeye v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Exercise`
[INFO] [stdout]  --> src/select.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::data::{Exercise, EXERCISES};
[INFO] [stdout]   |                   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `yew::prelude::*`
[INFO] [stdout]   --> src/select.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use yew::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::once`
[INFO] [stdout]  --> src/set.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::once;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Equipment`
[INFO] [stdout]  --> src/set.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::data::{Equipment, Exercise, EXERCISES};
[INFO] [stdout]   |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g1`
[INFO] [stdout]   --> src/app.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut g1: UnGraph<(), ()> = UnGraph::new_undirected();
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_g1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nodes`
[INFO] [stdout]   --> src/app.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut nodes = VecDeque::from(nodes);
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_nodes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut g1: UnGraph<(), ()> = UnGraph::new_undirected();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/app.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut nodes = VecDeque::from(nodes);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/app.rs:167:22
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 let (g, _) = (*s).iter().flatten().fold(
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/app.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |             g.neighbors(n).collect::<HashSet<_>>();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let _ = g.neighbors(n).collect::<HashSet<_>>();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/app.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     env_logger::try_init();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let _ = env_logger::try_init();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.83
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "0e7a4e469e2f68336c0890275618d56ed7e7465c4026937802350a0c09d2a49c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7a4e469e2f68336c0890275618d56ed7e7465c4026937802350a0c09d2a49c", kill_on_drop: false }`
[INFO] [stdout] 0e7a4e469e2f68336c0890275618d56ed7e7465c4026937802350a0c09d2a49c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f40f8acd56828c3757ce0a011c4e32666bc6c1f632af632e54304b3250373f4d
[INFO] running `Command { std: "docker" "start" "-a" "f40f8acd56828c3757ce0a011c4e32666bc6c1f632af632e54304b3250373f4d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Exercise`
[INFO] [stderr]  --> src/select.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::data::{Exercise, EXERCISES};
[INFO] [stderr]   |                   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `yew::prelude::*`
[INFO] [stderr]   --> src/select.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use yew::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::once`
[INFO] [stderr]  --> src/set.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter::once;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Equipment`
[INFO] [stderr]  --> src/set.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::data::{Equipment, Exercise, EXERCISES};
[INFO] [stderr]   |                   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g1`
[INFO] [stderr]   --> src/app.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut g1: UnGraph<(), ()> = UnGraph::new_undirected();
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_g1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nodes`
[INFO] [stderr]   --> src/app.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let mut nodes = VecDeque::from(nodes);
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_nodes`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/app.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut g1: UnGraph<(), ()> = UnGraph::new_undirected();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/app.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let mut nodes = VecDeque::from(nodes);
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]    --> src/app.rs:167:22
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 let (g, _) = (*s).iter().flatten().fold(
[INFO] [stderr]     |                      ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `collect` that must be used
[INFO] [stderr]   --> src/app.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |             g.neighbors(n).collect::<HashSet<_>>();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 52 |             let _ = g.neighbors(n).collect::<HashSet<_>>();
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/app.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     env_logger::try_init();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let _ = env_logger::try_init();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `popeye` (bin "popeye" test) generated 11 warnings (run `cargo fix --bin "popeye" --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.83
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/popeye-ca77a3e3a7552d4e)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test app::test_optimize ... ok
[INFO] [stdout] test data::test_muscles ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f40f8acd56828c3757ce0a011c4e32666bc6c1f632af632e54304b3250373f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f40f8acd56828c3757ce0a011c4e32666bc6c1f632af632e54304b3250373f4d", kill_on_drop: false }`
[INFO] [stdout] f40f8acd56828c3757ce0a011c4e32666bc6c1f632af632e54304b3250373f4d
