[INFO] fetching crate labyrinth 0.0.0...
[INFO] testing labyrinth-0.0.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate labyrinth 0.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate labyrinth 0.0.0
[INFO] finished tweaking crates.io crate labyrinth 0.0.0
[INFO] tweaked toml for crates.io crate labyrinth 0.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate labyrinth 0.0.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee80c2effd15f94d20fb41657f3fddcdeb558d12fa113f7394ca76d0e16f63d9
[INFO] running `Command { std: "docker" "start" "-a" "ee80c2effd15f94d20fb41657f3fddcdeb558d12fa113f7394ca76d0e16f63d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee80c2effd15f94d20fb41657f3fddcdeb558d12fa113f7394ca76d0e16f63d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee80c2effd15f94d20fb41657f3fddcdeb558d12fa113f7394ca76d0e16f63d9", kill_on_drop: false }`
[INFO] [stdout] ee80c2effd15f94d20fb41657f3fddcdeb558d12fa113f7394ca76d0e16f63d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c4c9b65825fe34be7837bba05d65dd9aafbcec63baedfb3a69d6550fb9ba1b5
[INFO] running `Command { std: "docker" "start" "-a" "9c4c9b65825fe34be7837bba05d65dd9aafbcec63baedfb3a69d6550fb9ba1b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling labyrinth v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/radiant/mod.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 |     collections::{BTreeMap, HashSet},
[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: `s`
[INFO] [stdout]   --> src/radiant/mod.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 let s = (i as f64 * delta) % 360.0;
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/radiant/mod.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let e = (i as f64 * delta + d) % 360.0;
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/radiant/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let x = Segment360 { head: 100.0, tail: 200.0 };
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/radiant/mod.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let y = Segment360 { head: 150.0, tail: 250.0 };
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `center`, `rings`, `exits`, `delta_angle`, and `seed` are never read
[INFO] [stdout]   --> src/radiant/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct LabyrinthConfig {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 10 |     kind: LabyrinthKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     /// center size
[INFO] [stdout] 12 |     center: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 13 |     /// rings out of center
[INFO] [stdout] 14 |     rings: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     /// number of exits
[INFO] [stdout] 16 |     exits: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     /// Each turn turns through `δ°` to prevent obvious axis
[INFO] [stdout] 18 |     delta_angle: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 19 |     seed: u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LabyrinthConfig` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `config` is never read
[INFO] [stdout]   --> src/radiant/mod.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct Labyrinth {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 65 |     config: LabyrinthConfig,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `adjacent` is never read
[INFO] [stdout]   --> src/radiant/mod.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct LabyrinthState {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 70 |     adjacent: HashSet<Joint>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]    --> src/radiant/mod.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn test() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `delta_angle` is never used
[INFO] [stdout]    --> src/radiant/mod.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl LabyrinthConfig {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] 130 |     fn delta_angle(&self) -> f32 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "9c4c9b65825fe34be7837bba05d65dd9aafbcec63baedfb3a69d6550fb9ba1b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4c9b65825fe34be7837bba05d65dd9aafbcec63baedfb3a69d6550fb9ba1b5", kill_on_drop: false }`
[INFO] [stdout] 9c4c9b65825fe34be7837bba05d65dd9aafbcec63baedfb3a69d6550fb9ba1b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75653e71e782e71378456adb50c1bee89ca4e2aaa8823ef5944561bc4a9785df
[INFO] running `Command { std: "docker" "start" "-a" "75653e71e782e71378456adb50c1bee89ca4e2aaa8823ef5944561bc4a9785df", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/radiant/mod.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 |     collections::{BTreeMap, HashSet},
[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: `s`
[INFO] [stdout]   --> src/radiant/mod.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 let s = (i as f64 * delta) % 360.0;
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling labyrinth v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/radiant/mod.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let e = (i as f64 * delta + d) % 360.0;
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/radiant/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let x = Segment360 { head: 100.0, tail: 200.0 };
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/radiant/mod.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let y = Segment360 { head: 150.0, tail: 250.0 };
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `center`, `rings`, `exits`, `delta_angle`, and `seed` are never read
[INFO] [stdout]   --> src/radiant/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct LabyrinthConfig {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 10 |     kind: LabyrinthKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     /// center size
[INFO] [stdout] 12 |     center: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 13 |     /// rings out of center
[INFO] [stdout] 14 |     rings: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     /// number of exits
[INFO] [stdout] 16 |     exits: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     /// Each turn turns through `δ°` to prevent obvious axis
[INFO] [stdout] 18 |     delta_angle: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 19 |     seed: u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LabyrinthConfig` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `config` is never read
[INFO] [stdout]   --> src/radiant/mod.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct Labyrinth {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 65 |     config: LabyrinthConfig,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `adjacent` is never read
[INFO] [stdout]   --> src/radiant/mod.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct LabyrinthState {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 70 |     adjacent: HashSet<Joint>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]    --> src/radiant/mod.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn test() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `delta_angle` is never used
[INFO] [stdout]    --> src/radiant/mod.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl LabyrinthConfig {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] 130 |     fn delta_angle(&self) -> f32 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/radiant/mod.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 |     collections::{BTreeMap, HashSet},
[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: `s`
[INFO] [stdout]   --> src/radiant/mod.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 let s = (i as f64 * delta) % 360.0;
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/radiant/mod.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let e = (i as f64 * delta + d) % 360.0;
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/radiant/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let x = Segment360 { head: 100.0, tail: 200.0 };
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/radiant/mod.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let y = Segment360 { head: 150.0, tail: 250.0 };
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `center`, `rings`, `exits`, `delta_angle`, and `seed` are never read
[INFO] [stdout]   --> src/radiant/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct LabyrinthConfig {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 10 |     kind: LabyrinthKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     /// center size
[INFO] [stdout] 12 |     center: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 13 |     /// rings out of center
[INFO] [stdout] 14 |     rings: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     /// number of exits
[INFO] [stdout] 16 |     exits: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     /// Each turn turns through `δ°` to prevent obvious axis
[INFO] [stdout] 18 |     delta_angle: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 19 |     seed: u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LabyrinthConfig` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `config` is never read
[INFO] [stdout]   --> src/radiant/mod.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct Labyrinth {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 65 |     config: LabyrinthConfig,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `adjacent` is never read
[INFO] [stdout]   --> src/radiant/mod.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub struct LabyrinthState {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 70 |     adjacent: HashSet<Joint>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]    --> src/radiant/mod.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn test() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `delta_angle` is never used
[INFO] [stdout]    --> src/radiant/mod.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl LabyrinthConfig {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] 130 |     fn delta_angle(&self) -> f32 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "75653e71e782e71378456adb50c1bee89ca4e2aaa8823ef5944561bc4a9785df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75653e71e782e71378456adb50c1bee89ca4e2aaa8823ef5944561bc4a9785df", kill_on_drop: false }`
[INFO] [stdout] 75653e71e782e71378456adb50c1bee89ca4e2aaa8823ef5944561bc4a9785df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ecab9df90eb5e22727e3781dadb07d68e11a6e930dbad999c22f05bc91976f4
[INFO] running `Command { std: "docker" "start" "-a" "2ecab9df90eb5e22727e3781dadb07d68e11a6e930dbad999c22f05bc91976f4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `BTreeMap`
[INFO] [stderr]  --> src/radiant/mod.rs:3:19
[INFO] [stderr]   |
[INFO] [stderr] 3 |     collections::{BTreeMap, HashSet},
[INFO] [stderr]   |                   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/radiant/mod.rs:54:21
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 let s = (i as f64 * delta) % 360.0;
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/radiant/mod.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let e = (i as f64 * delta + d) % 360.0;
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/radiant/mod.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |     let x = Segment360 { head: 100.0, tail: 200.0 };
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/radiant/mod.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     let y = Segment360 { head: 150.0, tail: 250.0 };
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `kind`, `center`, `rings`, `exits`, `delta_angle`, and `seed` are never read
[INFO] [stderr]   --> src/radiant/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub struct LabyrinthConfig {
[INFO] [stderr]    |            --------------- fields in this struct
[INFO] [stderr] 10 |     kind: LabyrinthKind,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 11 |     /// center size
[INFO] [stderr] 12 |     center: usize,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 13 |     /// rings out of center
[INFO] [stderr] 14 |     rings: usize,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 15 |     /// number of exits
[INFO] [stderr] 16 |     exits: usize,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 17 |     /// Each turn turns through `δ°` to prevent obvious axis
[INFO] [stderr] 18 |     delta_angle: f64,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 19 |     seed: u64,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `LabyrinthConfig` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `config` is never read
[INFO] [stderr]   --> src/radiant/mod.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub struct Labyrinth {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] 65 |     config: LabyrinthConfig,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `adjacent` is never read
[INFO] [stderr]   --> src/radiant/mod.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub struct LabyrinthState {
[INFO] [stderr]    |            -------------- field in this struct
[INFO] [stderr] 70 |     adjacent: HashSet<Joint>,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test` is never used
[INFO] [stderr]    --> src/radiant/mod.rs:106:4
[INFO] [stderr]     |
[INFO] [stderr] 106 | fn test() {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `delta_angle` is never used
[INFO] [stderr]    --> src/radiant/mod.rs:130:8
[INFO] [stderr]     |
[INFO] [stderr] 129 | impl LabyrinthConfig {
[INFO] [stderr]     | -------------------- method in this implementation
[INFO] [stderr] 130 |     fn delta_angle(&self) -> f32 {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `labyrinth` (lib) generated 10 warnings (run `cargo fix --lib -p labyrinth` to apply 5 suggestions)
[INFO] [stderr] warning: `labyrinth` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/labyrinth-a938d5a687ace317)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/main.rs (/opt/rustwide/target/debug/deps/main-0984d1b495fdec5e)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test ready ... ok
[INFO] [stdout] test test_mean ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 14.17s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests labyrinth
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ecab9df90eb5e22727e3781dadb07d68e11a6e930dbad999c22f05bc91976f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ecab9df90eb5e22727e3781dadb07d68e11a6e930dbad999c22f05bc91976f4", kill_on_drop: false }`
[INFO] [stdout] 2ecab9df90eb5e22727e3781dadb07d68e11a6e930dbad999c22f05bc91976f4