[INFO] fetching crate kbucket 0.1.0...
[INFO] testing kbucket-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate kbucket 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate kbucket 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kbucket 0.1.0
[INFO] finished tweaking crates.io crate kbucket 0.1.0
[INFO] tweaked toml for crates.io crate kbucket 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 446c63b4c2cff1f18c9e66ef2dd40d1a178f0942a59c0f73fe3ae8e03a125ec8
[INFO] running `Command { std: "docker" "start" "-a" "446c63b4c2cff1f18c9e66ef2dd40d1a178f0942a59c0f73fe3ae8e03a125ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "446c63b4c2cff1f18c9e66ef2dd40d1a178f0942a59c0f73fe3ae8e03a125ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "446c63b4c2cff1f18c9e66ef2dd40d1a178f0942a59c0f73fe3ae8e03a125ec8", kill_on_drop: false }`
[INFO] [stdout] 446c63b4c2cff1f18c9e66ef2dd40d1a178f0942a59c0f73fe3ae8e03a125ec8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f4da306a1aa3eee29f87d82512113ac5c092a290848b71b659ece7bc0dbec9f
[INFO] running `Command { std: "docker" "start" "-a" "1f4da306a1aa3eee29f87d82512113ac5c092a290848b71b659ece7bc0dbec9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling kbucket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `BranchNode`
[INFO] [stdout]   --> src/tree.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     BranchNode(BranchNode),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeafNode`
[INFO] [stdout]   --> src/tree.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     LeafNode(LeafNode),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V4`
[INFO] [stdout]   --> src/tree.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     V4(net::Ipv4Addr),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V6`
[INFO] [stdout]   --> src/tree.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     V6(net::Ipv6Addr),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/tree.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     id: [u8; 64],
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ip`
[INFO] [stdout]   --> src/tree.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     ip: Address,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `port`
[INFO] [stdout]   --> src/tree.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     port: u64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tree.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new(node_id: [u8; 64]) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/tree.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn add(&mut self, node: &NodeInfo) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tree.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn new() -> Option<Box<Node>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tree.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn new() -> Option<Box<Node>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/tree.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn new(id: [u8; 64], ip: Address, port: u64) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bit_value`
[INFO] [stdout]    --> src/tree.rs:109:4
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn bit_value(key: &[u8; 64], bit_index: usize) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "1f4da306a1aa3eee29f87d82512113ac5c092a290848b71b659ece7bc0dbec9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f4da306a1aa3eee29f87d82512113ac5c092a290848b71b659ece7bc0dbec9f", kill_on_drop: false }`
[INFO] [stdout] 1f4da306a1aa3eee29f87d82512113ac5c092a290848b71b659ece7bc0dbec9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19ff9a28789b759cda5d44ff159460653d5bf6d0c4d3fd91e7f19fb8008867bf
[INFO] running `Command { std: "docker" "start" "-a" "19ff9a28789b759cda5d44ff159460653d5bf6d0c4d3fd91e7f19fb8008867bf", kill_on_drop: false }`
[INFO] [stdout] warning: variant is never constructed: `BranchNode`
[INFO] [stdout]   --> src/tree.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     BranchNode(BranchNode),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeafNode`
[INFO] [stdout]   --> src/tree.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     LeafNode(LeafNode),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V4`
[INFO] [stdout]   --> src/tree.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     V4(net::Ipv4Addr),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V6`
[INFO] [stdout]   --> src/tree.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     V6(net::Ipv6Addr),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/tree.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     id: [u8; 64],
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ip`
[INFO] [stdout]   --> src/tree.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     ip: Address,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `port`
[INFO] [stdout]   --> src/tree.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     port: u64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tree.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new(node_id: [u8; 64]) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/tree.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn add(&mut self, node: &NodeInfo) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tree.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn new() -> Option<Box<Node>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tree.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn new() -> Option<Box<Node>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/tree.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn new(id: [u8; 64], ip: Address, port: u64) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bit_value`
[INFO] [stdout]    --> src/tree.rs:109:4
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn bit_value(key: &[u8; 64], bit_index: usize) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kbucket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `BranchNode`
[INFO] [stdout]   --> src/tree.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     BranchNode(BranchNode),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeafNode`
[INFO] [stdout]   --> src/tree.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     LeafNode(LeafNode),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V4`
[INFO] [stdout]   --> src/tree.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     V4(net::Ipv4Addr),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V6`
[INFO] [stdout]   --> src/tree.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     V6(net::Ipv6Addr),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/tree.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     id: [u8; 64],
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ip`
[INFO] [stdout]   --> src/tree.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     ip: Address,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `port`
[INFO] [stdout]   --> src/tree.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     port: u64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tree.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new(node_id: [u8; 64]) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/tree.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn add(&mut self, node: &NodeInfo) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tree.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn new() -> Option<Box<Node>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tree.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn new() -> Option<Box<Node>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/tree.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn new(id: [u8; 64], ip: Address, port: u64) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bit_value`
[INFO] [stdout]    --> src/tree.rs:109:4
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn bit_value(key: &[u8; 64], bit_index: usize) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "19ff9a28789b759cda5d44ff159460653d5bf6d0c4d3fd91e7f19fb8008867bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19ff9a28789b759cda5d44ff159460653d5bf6d0c4d3fd91e7f19fb8008867bf", kill_on_drop: false }`
[INFO] [stdout] 19ff9a28789b759cda5d44ff159460653d5bf6d0c4d3fd91e7f19fb8008867bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68aaa988652112f548a749688feb561b7d8a5aa3e7b80d1867b42f25e6809461
[INFO] running `Command { std: "docker" "start" "-a" "68aaa988652112f548a749688feb561b7d8a5aa3e7b80d1867b42f25e6809461", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `BranchNode`
[INFO] [stderr]   --> src/tree.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     BranchNode(BranchNode),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LeafNode`
[INFO] [stderr]   --> src/tree.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     LeafNode(LeafNode),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V4`
[INFO] [stderr]   --> src/tree.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     V4(net::Ipv4Addr),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V6`
[INFO] [stderr]   --> src/tree.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     V6(net::Ipv6Addr),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     id: [u8; 64],
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ip`
[INFO] [stderr]   --> src/tree.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     ip: Address,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `port`
[INFO] [stderr]   --> src/tree.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     port: u64,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/tree.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn new(node_id: [u8; 64]) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add`
[INFO] [stderr]   --> src/tree.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn add(&mut self, node: &NodeInfo) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/tree.rs:83:12
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn new() -> Option<Box<Node>> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/tree.rs:94:12
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn new() -> Option<Box<Node>> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/tree.rs:103:12
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn new(id: [u8; 64], ip: Address, port: u64) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bit_value`
[INFO] [stderr]    --> src/tree.rs:109:4
[INFO] [stderr]     |
[INFO] [stderr] 109 | fn bit_value(key: &[u8; 64], bit_index: usize) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `kbucket` (lib) generated 13 warnings
[INFO] [stderr] warning: `kbucket` (lib test) generated 13 warnings (13 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kbucket-00c7c17ed6e9d4a9)
[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]    Doc-tests kbucket
[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" "68aaa988652112f548a749688feb561b7d8a5aa3e7b80d1867b42f25e6809461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68aaa988652112f548a749688feb561b7d8a5aa3e7b80d1867b42f25e6809461", kill_on_drop: false }`
[INFO] [stdout] 68aaa988652112f548a749688feb561b7d8a5aa3e7b80d1867b42f25e6809461