[INFO] cloning repository https://github.com/nonam3e/kademlia_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nonam3e/kademlia_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnonam3e%2Fkademlia_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnonam3e%2Fkademlia_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18704b275c5f72ec4a672fe8b6f34d1df375976c
[INFO] checking nonam3e/kademlia_rust against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnonam3e%2Fkademlia_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nonam3e/kademlia_rust
[INFO] finished tweaking git repo https://github.com/nonam3e/kademlia_rust
[INFO] tweaked toml for git repo https://github.com/nonam3e/kademlia_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nonam3e/kademlia_rust on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nonam3e/kademlia_rust 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 785d17419d173e3a2ddfb0cb1c26851ec310adac3525b4729959aaa39978fc4f
[INFO] running `Command { std: "docker" "start" "-a" "785d17419d173e3a2ddfb0cb1c26851ec310adac3525b4729959aaa39978fc4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "785d17419d173e3a2ddfb0cb1c26851ec310adac3525b4729959aaa39978fc4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785d17419d173e3a2ddfb0cb1c26851ec310adac3525b4729959aaa39978fc4f", kill_on_drop: false }`
[INFO] [stdout] 785d17419d173e3a2ddfb0cb1c26851ec310adac3525b4729959aaa39978fc4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 860331b4af8e0f3e7b46e04822e33e481f9b34bd8cab3be22b67453ccb67e226
[INFO] running `Command { std: "docker" "start" "-a" "860331b4af8e0f3e7b46e04822e33e481f9b34bd8cab3be22b67453ccb67e226", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking instant v0.1.11
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling tokio v1.8.3
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking tinyvec v1.5.0
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling hex-literal v0.3.3
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking nix v0.22.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking dns-lookup v1.0.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking sha2 v0.9.8
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking mac_address v1.1.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling tokio-macros v1.4.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]     Checking pin-project v1.0.8
[INFO] [stderr]     Checking futures-util v0.3.17
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking hyper v0.14.13
[INFO] [stderr]     Checking trust-dns-proto v0.20.3
[INFO] [stderr]     Checking hyper-system-resolver v0.5.0
[INFO] [stderr]     Checking trust-dns-client v0.20.3
[INFO] [stderr]     Checking public-ip v0.2.1
[INFO] [stderr]     Checking untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `KEY_LEN`
[INFO] [stdout]  --> src/node.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::settings::{KEY_LEN, N_MODE, NetworkMode};
[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 imports: `Digest` and `Sha256`
[INFO] [stdout]  --> src/key.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sha2::{Sha256, Digest};
[INFO] [stdout]   |            ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/utils.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hex`
[INFO] [stdout]  --> src/utils.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use hex;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::key::Key`
[INFO] [stdout]  --> src/utils.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::key::Key;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `K_PARAM`
[INFO] [stdout]  --> src/kbucket.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::settings::{ K_PARAM };
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/node.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |             _ => panic!("set NetworkMode"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/node.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             NetworkMode::Global => crate::utils::get_public_ip().await.unwrap(),
[INFO] [stdout]    |             ------------------- matches some of the same values
[INFO] [stdout] 14 |             NetworkMode::Local => crate::utils::get_local_ip().await.unwrap(),
[INFO] [stdout]    |             ------------------ matches some of the same values
[INFO] [stdout] 15 |             _ => panic!("set NetworkMode"),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/key.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |             _=> panic!("set NetworkMode"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/key.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             NetworkMode::Global => to_hash = get_public_ip().await.unwrap(),
[INFO] [stdout]    |             ------------------- matches some of the same values
[INFO] [stdout] 13 |             NetworkMode::Local => to_hash = get_local_ip().await.unwrap(),
[INFO] [stdout]    |             ------------------ matches some of the same values
[INFO] [stdout] 14 |             _=> panic!("set NetworkMode"),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `KEY_LEN`
[INFO] [stdout]  --> src/node.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::settings::{KEY_LEN, N_MODE, NetworkMode};
[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 imports: `Digest` and `Sha256`
[INFO] [stdout]  --> src/key.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sha2::{Sha256, Digest};
[INFO] [stdout]   |            ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/utils.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hex`
[INFO] [stdout]  --> src/utils.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use hex;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::key::Key`
[INFO] [stdout]  --> src/utils.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::key::Key;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `K_PARAM`
[INFO] [stdout]  --> src/kbucket.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::settings::{ K_PARAM };
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/node.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |             _ => panic!("set NetworkMode"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/node.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             NetworkMode::Global => crate::utils::get_public_ip().await.unwrap(),
[INFO] [stdout]    |             ------------------- matches some of the same values
[INFO] [stdout] 14 |             NetworkMode::Local => crate::utils::get_local_ip().await.unwrap(),
[INFO] [stdout]    |             ------------------ matches some of the same values
[INFO] [stdout] 15 |             _ => panic!("set NetworkMode"),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/kbucket.rs:40:28
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn add_node(&mut self, node: node::Node)
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/key.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |             _=> panic!("set NetworkMode"),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/key.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             NetworkMode::Global => to_hash = get_public_ip().await.unwrap(),
[INFO] [stdout]    |             ------------------- matches some of the same values
[INFO] [stdout] 13 |             NetworkMode::Local => to_hash = get_local_ip().await.unwrap(),
[INFO] [stdout]    |             ------------------ matches some of the same values
[INFO] [stdout] 14 |             _=> panic!("set NetworkMode"),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `N_BUCKETS` is never used
[INFO] [stdout]  --> src/settings.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const N_BUCKETS: usize = KEY_LEN * 8;
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `K_PARAM` is never used
[INFO] [stdout]  --> src/settings.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const K_PARAM: usize = 20;
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BUF_SIZE` is never used
[INFO] [stdout]   --> src/settings.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const BUF_SIZE: usize = 4096 * 2;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TIMEOUT` is never used
[INFO] [stdout]   --> src/settings.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const TIMEOUT: u64 = 5000;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ALPHA` is never used
[INFO] [stdout]   --> src/settings.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub const ALPHA: usize = 3;
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Local` is never constructed
[INFO] [stdout]   --> src/settings.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum NetworkMode {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 22 |     Global,
[INFO] [stdout] 23 |     Local,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Kbucket` is never constructed
[INFO] [stdout]  --> src/kbucket.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Kbucket
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `update`, and `add_node` are never used
[INFO] [stdout]   --> src/kbucket.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Kbucket
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 14 | {
[INFO] [stdout] 15 |     pub fn new() -> Self
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn update(&mut self, timeout: std::time::Duration)
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn add_node(&mut self, node: node::Node)
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Rpc` is never used
[INFO] [stdout]  --> src/rpc.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Rpc {
[INFO] [stdout]   |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/kbucket.rs:40:28
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn add_node(&mut self, node: node::Node)
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `N_BUCKETS` is never used
[INFO] [stdout]  --> src/settings.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const N_BUCKETS: usize = KEY_LEN * 8;
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `K_PARAM` is never used
[INFO] [stdout]  --> src/settings.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const K_PARAM: usize = 20;
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BUF_SIZE` is never used
[INFO] [stdout]   --> src/settings.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const BUF_SIZE: usize = 4096 * 2;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TIMEOUT` is never used
[INFO] [stdout]   --> src/settings.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const TIMEOUT: u64 = 5000;
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ALPHA` is never used
[INFO] [stdout]   --> src/settings.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub const ALPHA: usize = 3;
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Local` is never constructed
[INFO] [stdout]   --> src/settings.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum NetworkMode {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] 22 |     Global,
[INFO] [stdout] 23 |     Local,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Kbucket` is never constructed
[INFO] [stdout]  --> src/kbucket.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Kbucket
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `update`, and `add_node` are never used
[INFO] [stdout]   --> src/kbucket.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Kbucket
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 14 | {
[INFO] [stdout] 15 |     pub fn new() -> Self
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn update(&mut self, timeout: std::time::Duration)
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn add_node(&mut self, node: node::Node)
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Rpc` is never used
[INFO] [stdout]  --> src/rpc.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Rpc {
[INFO] [stdout]   |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.72s
[INFO] running `Command { std: "docker" "inspect" "860331b4af8e0f3e7b46e04822e33e481f9b34bd8cab3be22b67453ccb67e226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "860331b4af8e0f3e7b46e04822e33e481f9b34bd8cab3be22b67453ccb67e226", kill_on_drop: false }`
[INFO] [stdout] 860331b4af8e0f3e7b46e04822e33e481f9b34bd8cab3be22b67453ccb67e226
