[INFO] updating cached repository https://github.com/nmrshll/kademlia-dht-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 823976e0b19c3e4f6157c83dc76831f5236a5cbf
[INFO] testing nmrshll/kademlia-dht-rs against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnmrshll%2Fkademlia-dht-rs" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nmrshll/kademlia-dht-rs on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nmrshll/kademlia-dht-rs
[INFO] finished tweaking git repo https://github.com/nmrshll/kademlia-dht-rs
[INFO] tweaked toml for git repo https://github.com/nmrshll/kademlia-dht-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nmrshll/kademlia-dht-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0cddeac1924b5400533b6cc54481c51e834289696f9cc57a68640d9c33743344
[INFO] running `"docker" "start" "-a" "0cddeac1924b5400533b6cc54481c51e834289696f9cc57a68640d9c33743344"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling kademlia-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: constant is never used: `A_CONCURRENT_REQUESTS`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const A_CONCURRENT_REQUESTS: usize = 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `start`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn start(
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `start_req_handler`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:84:8
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn start_req_handler(self, rx: Receiver<ReqHandle>) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `handle_req`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn handle_req(&self, req: Request, src: Node) -> Reply {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn ping_raw(&self, dst: Node) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `store_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:139:12
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn store_raw(&self, dst: Node, k: String, v: String) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_node_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:143:12
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub fn find_node_raw(&self, dst: Node, id: Key) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_value_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:147:12
[INFO] [stderr]     |
[INFO] [stderr] 147 |     pub fn find_value_raw(&self, dst: Node, k: String) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:151:12
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn ping(&self, dst: Node) -> Option<()> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `store`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:163:12
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn store(&self, dst: Node, k: String, v: String) -> Option<()> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_node`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:175:12
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn find_node(&self, dst: Node, id: Key) -> Option<Vec<KnownNode>> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_value`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:187:12
[INFO] [stderr]     |
[INFO] [stderr] 187 |     pub fn find_value(&self, dst: Node, k: String) -> Option<FindValueResult> {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_nodes`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:199:12
[INFO] [stderr]     |
[INFO] [stderr] 199 |     pub fn lookup_nodes(&self, id: Key) -> Vec<KnownNode> {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_value`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:254:12
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub fn lookup_value(&self, k: String) -> (Option<String>, Vec<KnownNode>) {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `put`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:320:12
[INFO] [stderr]     |
[INFO] [stderr] 320 |     pub fn put(&self, k: String, v: String) {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:332:12
[INFO] [stderr]     |
[INFO] [stderr] 332 |     pub fn get(&self, k: String) -> Option<String> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print_routes`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:347:12
[INFO] [stderr]     |
[INFO] [stderr] 347 |     pub fn print_routes(&self) {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `random`
[INFO] [stderr]   --> src/kademlia/key.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn random() -> Key {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `hash`
[INFO] [stderr]   --> src/kademlia/key.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn hash(data: String) -> Key {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dist`
[INFO] [stderr]   --> src/kademlia/key.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn dist(&self, y: Key) -> Distance {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `zeroes_in_prefix`
[INFO] [stderr]   --> src/kademlia/key.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn zeroes_in_prefix(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MESSAGE_LEN`
[INFO] [stderr]   --> src/kademlia/networking.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub const MESSAGE_LEN: usize = 8196;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `TIMEOUT`
[INFO] [stderr]   --> src/kademlia/networking.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub const TIMEOUT: u64 = 5000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ReqHandle`
[INFO] [stderr]   --> src/kademlia/networking.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub struct ReqHandle {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_req`
[INFO] [stderr]   --> src/kademlia/networking.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn get_req(&self) -> &Request {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_src`
[INFO] [stderr]   --> src/kademlia/networking.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn get_src(&self) -> &Node {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rep`
[INFO] [stderr]   --> src/kademlia/networking.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn rep(self, rep: Reply) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `open`
[INFO] [stderr]   --> src/kademlia/networking.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn open(socket: UdpSocket, tx: Sender<ReqHandle>, node_info: Node) -> Rpc {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `handle_rep`
[INFO] [stderr]    --> src/kademlia/networking.rs:121:8
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn handle_rep(self, token: Key, rep: Reply) {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `send_msg`
[INFO] [stderr]    --> src/kademlia/networking.rs:138:8
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn send_msg(&self, rmsg: &RpcMessage, addr: &str) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `send_req`
[INFO] [stderr]    --> src/kademlia/networking.rs:145:12
[INFO] [stderr]     |
[INFO] [stderr] 145 |     pub fn send_req(&self, req: Request, dst: Node) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `N_BUCKETS`
[INFO] [stderr]  --> src/kademlia/routing.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub const N_BUCKETS: usize = KEY_LEN * 8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `K_ENTRIES_PER_BUCKET`
[INFO] [stderr]  --> src/kademlia/routing.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const K_ENTRIES_PER_BUCKET: usize = 8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/kademlia/routing.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn new(node_info: Node) -> RoutingTable {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update`
[INFO] [stderr]   --> src/kademlia/routing.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn update(&mut self, node_info: Node) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `closest_nodes`
[INFO] [stderr]   --> src/kademlia/routing.rs:86:12
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn closest_nodes(&self, item: Key, count: usize) -> Vec<KnownNode> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `remove`
[INFO] [stderr]    --> src/kademlia/routing.rs:104:12
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn remove(&mut self, node_info: &Node) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_bucket_index`
[INFO] [stderr]    --> src/kademlia/routing.rs:116:8
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn lookup_bucket_index(&self, item: Key) -> usize {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print`
[INFO] [stderr]    --> src/kademlia/routing.rs:120:12
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn print(&self) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 39 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.18s
[INFO] running `"docker" "inspect" "0cddeac1924b5400533b6cc54481c51e834289696f9cc57a68640d9c33743344"`
[INFO] running `"docker" "rm" "-f" "0cddeac1924b5400533b6cc54481c51e834289696f9cc57a68640d9c33743344"`
[INFO] [stdout] 0cddeac1924b5400533b6cc54481c51e834289696f9cc57a68640d9c33743344
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 00535e6a51cb5f209f93bef542910cf29a27430606a3cb4ba455312c0714aef3
[INFO] running `"docker" "start" "-a" "00535e6a51cb5f209f93bef542910cf29a27430606a3cb4ba455312c0714aef3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling kademlia-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: constant is never used: `A_CONCURRENT_REQUESTS`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const A_CONCURRENT_REQUESTS: usize = 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `start`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn start(
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `start_req_handler`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:84:8
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn start_req_handler(self, rx: Receiver<ReqHandle>) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `handle_req`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn handle_req(&self, req: Request, src: Node) -> Reply {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn ping_raw(&self, dst: Node) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `store_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:139:12
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn store_raw(&self, dst: Node, k: String, v: String) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_node_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:143:12
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub fn find_node_raw(&self, dst: Node, id: Key) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_value_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:147:12
[INFO] [stderr]     |
[INFO] [stderr] 147 |     pub fn find_value_raw(&self, dst: Node, k: String) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:151:12
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn ping(&self, dst: Node) -> Option<()> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `store`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:163:12
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn store(&self, dst: Node, k: String, v: String) -> Option<()> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_node`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:175:12
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn find_node(&self, dst: Node, id: Key) -> Option<Vec<KnownNode>> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_value`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:187:12
[INFO] [stderr]     |
[INFO] [stderr] 187 |     pub fn find_value(&self, dst: Node, k: String) -> Option<FindValueResult> {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_nodes`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:199:12
[INFO] [stderr]     |
[INFO] [stderr] 199 |     pub fn lookup_nodes(&self, id: Key) -> Vec<KnownNode> {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_value`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:254:12
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub fn lookup_value(&self, k: String) -> (Option<String>, Vec<KnownNode>) {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `put`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:320:12
[INFO] [stderr]     |
[INFO] [stderr] 320 |     pub fn put(&self, k: String, v: String) {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:332:12
[INFO] [stderr]     |
[INFO] [stderr] 332 |     pub fn get(&self, k: String) -> Option<String> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print_routes`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:347:12
[INFO] [stderr]     |
[INFO] [stderr] 347 |     pub fn print_routes(&self) {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `hash`
[INFO] [stderr]   --> src/kademlia/key.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn hash(data: String) -> Key {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dist`
[INFO] [stderr]   --> src/kademlia/key.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn dist(&self, y: Key) -> Distance {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `zeroes_in_prefix`
[INFO] [stderr]   --> src/kademlia/key.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn zeroes_in_prefix(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MESSAGE_LEN`
[INFO] [stderr]   --> src/kademlia/networking.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub const MESSAGE_LEN: usize = 8196;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `TIMEOUT`
[INFO] [stderr]   --> src/kademlia/networking.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub const TIMEOUT: u64 = 5000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ReqHandle`
[INFO] [stderr]   --> src/kademlia/networking.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub struct ReqHandle {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_req`
[INFO] [stderr]   --> src/kademlia/networking.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn get_req(&self) -> &Request {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_src`
[INFO] [stderr]   --> src/kademlia/networking.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn get_src(&self) -> &Node {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rep`
[INFO] [stderr]   --> src/kademlia/networking.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn rep(self, rep: Reply) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `open`
[INFO] [stderr]   --> src/kademlia/networking.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn open(socket: UdpSocket, tx: Sender<ReqHandle>, node_info: Node) -> Rpc {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `handle_rep`
[INFO] [stderr]    --> src/kademlia/networking.rs:121:8
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn handle_rep(self, token: Key, rep: Reply) {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `send_msg`
[INFO] [stderr]    --> src/kademlia/networking.rs:138:8
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn send_msg(&self, rmsg: &RpcMessage, addr: &str) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `send_req`
[INFO] [stderr]    --> src/kademlia/networking.rs:145:12
[INFO] [stderr]     |
[INFO] [stderr] 145 |     pub fn send_req(&self, req: Request, dst: Node) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `N_BUCKETS`
[INFO] [stderr]  --> src/kademlia/routing.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub const N_BUCKETS: usize = KEY_LEN * 8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `K_ENTRIES_PER_BUCKET`
[INFO] [stderr]  --> src/kademlia/routing.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const K_ENTRIES_PER_BUCKET: usize = 8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/kademlia/routing.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn new(node_info: Node) -> RoutingTable {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update`
[INFO] [stderr]   --> src/kademlia/routing.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn update(&mut self, node_info: Node) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `closest_nodes`
[INFO] [stderr]   --> src/kademlia/routing.rs:86:12
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn closest_nodes(&self, item: Key, count: usize) -> Vec<KnownNode> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `remove`
[INFO] [stderr]    --> src/kademlia/routing.rs:104:12
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn remove(&mut self, node_info: &Node) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_bucket_index`
[INFO] [stderr]    --> src/kademlia/routing.rs:116:8
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn lookup_bucket_index(&self, item: Key) -> usize {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print`
[INFO] [stderr]    --> src/kademlia/routing.rs:120:12
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn print(&self) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `"docker" "inspect" "00535e6a51cb5f209f93bef542910cf29a27430606a3cb4ba455312c0714aef3"`
[INFO] running `"docker" "rm" "-f" "00535e6a51cb5f209f93bef542910cf29a27430606a3cb4ba455312c0714aef3"`
[INFO] [stdout] 00535e6a51cb5f209f93bef542910cf29a27430606a3cb4ba455312c0714aef3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 42a1863444be65be46e400f501656e725adbe21442e385c08672832ad97d1174
[INFO] running `"docker" "start" "-a" "42a1863444be65be46e400f501656e725adbe21442e385c08672832ad97d1174"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: constant is never used: `A_CONCURRENT_REQUESTS`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const A_CONCURRENT_REQUESTS: usize = 3;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `start`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn start(
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `start_req_handler`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:84:8
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn start_req_handler(self, rx: Receiver<ReqHandle>) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `handle_req`
[INFO] [stderr]   --> src/kademlia/kademlia.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn handle_req(&self, req: Request, src: Node) -> Reply {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn ping_raw(&self, dst: Node) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `store_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:139:12
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn store_raw(&self, dst: Node, k: String, v: String) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_node_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:143:12
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub fn find_node_raw(&self, dst: Node, id: Key) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_value_raw`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:147:12
[INFO] [stderr]     |
[INFO] [stderr] 147 |     pub fn find_value_raw(&self, dst: Node, k: String) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ping`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:151:12
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn ping(&self, dst: Node) -> Option<()> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `store`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:163:12
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn store(&self, dst: Node, k: String, v: String) -> Option<()> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_node`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:175:12
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn find_node(&self, dst: Node, id: Key) -> Option<Vec<KnownNode>> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_value`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:187:12
[INFO] [stderr]     |
[INFO] [stderr] 187 |     pub fn find_value(&self, dst: Node, k: String) -> Option<FindValueResult> {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_nodes`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:199:12
[INFO] [stderr]     |
[INFO] [stderr] 199 |     pub fn lookup_nodes(&self, id: Key) -> Vec<KnownNode> {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_value`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:254:12
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub fn lookup_value(&self, k: String) -> (Option<String>, Vec<KnownNode>) {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `put`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:320:12
[INFO] [stderr]     |
[INFO] [stderr] 320 |     pub fn put(&self, k: String, v: String) {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:332:12
[INFO] [stderr]     |
[INFO] [stderr] 332 |     pub fn get(&self, k: String) -> Option<String> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print_routes`
[INFO] [stderr]    --> src/kademlia/kademlia.rs:347:12
[INFO] [stderr]     |
[INFO] [stderr] 347 |     pub fn print_routes(&self) {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `hash`
[INFO] [stderr]   --> src/kademlia/key.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn hash(data: String) -> Key {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dist`
[INFO] [stderr]   --> src/kademlia/key.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn dist(&self, y: Key) -> Distance {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `zeroes_in_prefix`
[INFO] [stderr]   --> src/kademlia/key.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn zeroes_in_prefix(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MESSAGE_LEN`
[INFO] [stderr]   --> src/kademlia/networking.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub const MESSAGE_LEN: usize = 8196;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `TIMEOUT`
[INFO] [stderr]   --> src/kademlia/networking.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub const TIMEOUT: u64 = 5000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ReqHandle`
[INFO] [stderr]   --> src/kademlia/networking.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub struct ReqHandle {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_req`
[INFO] [stderr]   --> src/kademlia/networking.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn get_req(&self) -> &Request {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_src`
[INFO] [stderr]   --> src/kademlia/networking.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn get_src(&self) -> &Node {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rep`
[INFO] [stderr]   --> src/kademlia/networking.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn rep(self, rep: Reply) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `open`
[INFO] [stderr]   --> src/kademlia/networking.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn open(socket: UdpSocket, tx: Sender<ReqHandle>, node_info: Node) -> Rpc {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `handle_rep`
[INFO] [stderr]    --> src/kademlia/networking.rs:121:8
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn handle_rep(self, token: Key, rep: Reply) {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `send_msg`
[INFO] [stderr]    --> src/kademlia/networking.rs:138:8
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn send_msg(&self, rmsg: &RpcMessage, addr: &str) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `send_req`
[INFO] [stderr]    --> src/kademlia/networking.rs:145:12
[INFO] [stderr]     |
[INFO] [stderr] 145 |     pub fn send_req(&self, req: Request, dst: Node) -> Receiver<Option<Reply>> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `N_BUCKETS`
[INFO] [stderr]  --> src/kademlia/routing.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub const N_BUCKETS: usize = KEY_LEN * 8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `K_ENTRIES_PER_BUCKET`
[INFO] [stderr]  --> src/kademlia/routing.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const K_ENTRIES_PER_BUCKET: usize = 8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/kademlia/routing.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn new(node_info: Node) -> RoutingTable {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update`
[INFO] [stderr]   --> src/kademlia/routing.rs:62:12
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn update(&mut self, node_info: Node) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `closest_nodes`
[INFO] [stderr]   --> src/kademlia/routing.rs:86:12
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn closest_nodes(&self, item: Key, count: usize) -> Vec<KnownNode> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `remove`
[INFO] [stderr]    --> src/kademlia/routing.rs:104:12
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn remove(&mut self, node_info: &Node) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_bucket_index`
[INFO] [stderr]    --> src/kademlia/routing.rs:116:8
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn lookup_bucket_index(&self, item: Key) -> usize {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print`
[INFO] [stderr]    --> src/kademlia/routing.rs:120:12
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn print(&self) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/kademlia_rs-7c24ab2a58c72012
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test kademlia::key::test::test_debug_key ... ok
[INFO] [stdout] test test::test_debug_key ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "42a1863444be65be46e400f501656e725adbe21442e385c08672832ad97d1174"`
[INFO] running `"docker" "rm" "-f" "42a1863444be65be46e400f501656e725adbe21442e385c08672832ad97d1174"`
[INFO] [stdout] 42a1863444be65be46e400f501656e725adbe21442e385c08672832ad97d1174