[INFO] cloning repository https://github.com/LeoAlex0/luogu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LeoAlex0/luogu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoAlex0%2Fluogu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoAlex0%2Fluogu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc1bbdd841ba0cb71d722e1a3a2676b95bddad2d
[INFO] testing LeoAlex0/luogu against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoAlex0%2Fluogu" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LeoAlex0/luogu on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LeoAlex0/luogu
[INFO] finished tweaking git repo https://github.com/LeoAlex0/luogu
[INFO] tweaked toml for git repo https://github.com/LeoAlex0/luogu written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/LeoAlex0/luogu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 988633635b3c8aaaa03d634647d751530d447ba86cf2f808e5e95d5fbafa222c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "988633635b3c8aaaa03d634647d751530d447ba86cf2f808e5e95d5fbafa222c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "988633635b3c8aaaa03d634647d751530d447ba86cf2f808e5e95d5fbafa222c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "988633635b3c8aaaa03d634647d751530d447ba86cf2f808e5e95d5fbafa222c", kill_on_drop: false }`
[INFO] [stdout] 988633635b3c8aaaa03d634647d751530d447ba86cf2f808e5e95d5fbafa222c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac1994683efdd1c24bd374300256c60ccaaa538f8289ad093020aecab15203bc
[INFO] running `Command { std: "docker" "start" "-a" "ac1994683efdd1c24bd374300256c60ccaaa538f8289ad093020aecab15203bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling luogu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Leaf`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Leaf(A),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Node2`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     Node2 {
[INFO] [stdout] 15 | |         measure: A::To,
[INFO] [stdout] 16 | |         left: Node<A>,
[INFO] [stdout] 17 | |         right: Node<A>,
[INFO] [stdout] 18 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Node3`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     Node3 {
[INFO] [stdout] 20 | |         measure: A::To,
[INFO] [stdout] 21 | |         left: Node<A>,
[INFO] [stdout] 22 | |         middle: Node<A>,
[INFO] [stdout] 23 | |         right: Node<A>,
[INFO] [stdout] 24 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `splitAt`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn splitAt<F: Clone + Fn(A::To) -> bool>() -> (Option<NodeInner<A>>, A, Option<NodeInner<A>>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]    --> src/data_structure/finger_tree.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 |     Empty,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unit`
[INFO] [stdout]    --> src/data_structure/finger_tree.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     Unit(A),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Deep`
[INFO] [stdout]    --> src/data_structure/finger_tree.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | /     Deep {
[INFO] [stdout] 129 | |         measure: A::To,
[INFO] [stdout] 130 | |         pr: Digit<Node<A>>,
[INFO] [stdout] 131 | |         m: FingerTree<A>,
[INFO] [stdout] 132 | |         sf: Digit<Node<A>>,
[INFO] [stdout] 133 | |     },
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `splitAt` should have a snake case name
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn splitAt<F: Clone + Fn(A::To) -> bool>() -> (Option<NodeInner<A>>, A, Option<NodeInner<A>>) {
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `split_at`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.99s
[INFO] running `Command { std: "docker" "inspect" "ac1994683efdd1c24bd374300256c60ccaaa538f8289ad093020aecab15203bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac1994683efdd1c24bd374300256c60ccaaa538f8289ad093020aecab15203bc", kill_on_drop: false }`
[INFO] [stdout] ac1994683efdd1c24bd374300256c60ccaaa538f8289ad093020aecab15203bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 25efaa8fa11fbb2431224552ca042151ceba9029b29c41cf81324a0d7e3e3c1e
[INFO] running `Command { std: "docker" "start" "-a" "25efaa8fa11fbb2431224552ca042151ceba9029b29c41cf81324a0d7e3e3c1e", kill_on_drop: false }`
[INFO] [stdout] warning: variant is never constructed: `Leaf`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Leaf(A),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling luogu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Node2`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     Node2 {
[INFO] [stdout] 15 | |         measure: A::To,
[INFO] [stdout] 16 | |         left: Node<A>,
[INFO] [stdout] 17 | |         right: Node<A>,
[INFO] [stdout] 18 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Node3`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     Node3 {
[INFO] [stdout] 20 | |         measure: A::To,
[INFO] [stdout] 21 | |         left: Node<A>,
[INFO] [stdout] 22 | |         middle: Node<A>,
[INFO] [stdout] 23 | |         right: Node<A>,
[INFO] [stdout] 24 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `splitAt`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn splitAt<F: Clone + Fn(A::To) -> bool>() -> (Option<NodeInner<A>>, A, Option<NodeInner<A>>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]    --> src/data_structure/finger_tree.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 |     Empty,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unit`
[INFO] [stdout]    --> src/data_structure/finger_tree.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     Unit(A),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Deep`
[INFO] [stdout]    --> src/data_structure/finger_tree.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | /     Deep {
[INFO] [stdout] 129 | |         measure: A::To,
[INFO] [stdout] 130 | |         pr: Digit<Node<A>>,
[INFO] [stdout] 131 | |         m: FingerTree<A>,
[INFO] [stdout] 132 | |         sf: Digit<Node<A>>,
[INFO] [stdout] 133 | |     },
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `splitAt` should have a snake case name
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn splitAt<F: Clone + Fn(A::To) -> bool>() -> (Option<NodeInner<A>>, A, Option<NodeInner<A>>) {
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `split_at`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Leaf`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Leaf(A),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Node2`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     Node2 {
[INFO] [stdout] 15 | |         measure: A::To,
[INFO] [stdout] 16 | |         left: Node<A>,
[INFO] [stdout] 17 | |         right: Node<A>,
[INFO] [stdout] 18 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Node3`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     Node3 {
[INFO] [stdout] 20 | |         measure: A::To,
[INFO] [stdout] 21 | |         left: Node<A>,
[INFO] [stdout] 22 | |         middle: Node<A>,
[INFO] [stdout] 23 | |         right: Node<A>,
[INFO] [stdout] 24 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `splitAt`
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn splitAt<F: Clone + Fn(A::To) -> bool>() -> (Option<NodeInner<A>>, A, Option<NodeInner<A>>) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]    --> src/data_structure/finger_tree.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 |     Empty,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unit`
[INFO] [stdout]    --> src/data_structure/finger_tree.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     Unit(A),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Deep`
[INFO] [stdout]    --> src/data_structure/finger_tree.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | /     Deep {
[INFO] [stdout] 129 | |         measure: A::To,
[INFO] [stdout] 130 | |         pr: Digit<Node<A>>,
[INFO] [stdout] 131 | |         m: FingerTree<A>,
[INFO] [stdout] 132 | |         sf: Digit<Node<A>>,
[INFO] [stdout] 133 | |     },
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `splitAt` should have a snake case name
[INFO] [stdout]   --> src/data_structure/finger_tree.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn splitAt<F: Clone + Fn(A::To) -> bool>() -> (Option<NodeInner<A>>, A, Option<NodeInner<A>>) {
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `split_at`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "25efaa8fa11fbb2431224552ca042151ceba9029b29c41cf81324a0d7e3e3c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25efaa8fa11fbb2431224552ca042151ceba9029b29c41cf81324a0d7e3e3c1e", kill_on_drop: false }`
[INFO] [stdout] 25efaa8fa11fbb2431224552ca042151ceba9029b29c41cf81324a0d7e3e3c1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74d99def182081620681717e6d359db1ff26f806d79a6fefa5f60a22730f6e6c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "74d99def182081620681717e6d359db1ff26f806d79a6fefa5f60a22730f6e6c", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Leaf`
[INFO] [stderr]   --> src/data_structure/finger_tree.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Leaf(A),
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Node2`
[INFO] [stderr]   --> src/data_structure/finger_tree.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     Node2 {
[INFO] [stderr] 15 | |         measure: A::To,
[INFO] [stderr] 16 | |         left: Node<A>,
[INFO] [stderr] 17 | |         right: Node<A>,
[INFO] [stderr] 18 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Node3`
[INFO] [stderr]   --> src/data_structure/finger_tree.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     Node3 {
[INFO] [stderr] 20 | |         measure: A::To,
[INFO] [stderr] 21 | |         left: Node<A>,
[INFO] [stderr] 22 | |         middle: Node<A>,
[INFO] [stderr] 23 | |         right: Node<A>,
[INFO] [stderr] 24 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `splitAt`
[INFO] [stderr]   --> src/data_structure/finger_tree.rs:45:8
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn splitAt<F: Clone + Fn(A::To) -> bool>() -> (Option<NodeInner<A>>, A, Option<NodeInner<A>>) {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]    --> src/data_structure/finger_tree.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     Empty,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unit`
[INFO] [stderr]    --> src/data_structure/finger_tree.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     Unit(A),
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Deep`
[INFO] [stderr]    --> src/data_structure/finger_tree.rs:128:5
[INFO] [stderr]     |
[INFO] [stderr] 128 | /     Deep {
[INFO] [stderr] 129 | |         measure: A::To,
[INFO] [stderr] 130 | |         pr: Digit<Node<A>>,
[INFO] [stderr] 131 | |         m: FingerTree<A>,
[INFO] [stderr] 132 | |         sf: Digit<Node<A>>,
[INFO] [stderr] 133 | |     },
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method `splitAt` should have a snake case name
[INFO] [stderr]   --> src/data_structure/finger_tree.rs:45:8
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn splitAt<F: Clone + Fn(A::To) -> bool>() -> (Option<NodeInner<A>>, A, Option<NodeInner<A>>) {
[INFO] [stderr]    |        ^^^^^^^ help: convert the identifier to snake case: `split_at`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `luogu` (lib) generated 8 warnings
[INFO] [stderr] warning: `luogu` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/luogu-f72fa6c404001141)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/p3372-4d781201b060a479)
[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] [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 unittests (/opt/rustwide/target/debug/deps/p3373-addbd680d39c6392)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/p5502-952b9523b72318e6)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/p7357_wip-a2835ccb7ee81b19)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests luogu
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] [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] [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" "74d99def182081620681717e6d359db1ff26f806d79a6fefa5f60a22730f6e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d99def182081620681717e6d359db1ff26f806d79a6fefa5f60a22730f6e6c", kill_on_drop: false }`
[INFO] [stdout] 74d99def182081620681717e6d359db1ff26f806d79a6fefa5f60a22730f6e6c