[INFO] cloning repository https://github.com/chryoung/udplinktest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chryoung/udplinktest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchryoung%2Fudplinktest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchryoung%2Fudplinktest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6216eac001c29fb42d1050ce0081ef3cf91a5f71
[INFO] testing chryoung/udplinktest against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchryoung%2Fudplinktest" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chryoung/udplinktest on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chryoung/udplinktest
[INFO] finished tweaking git repo https://github.com/chryoung/udplinktest
[INFO] tweaked toml for git repo https://github.com/chryoung/udplinktest written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/chryoung/udplinktest already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fbedfbdd782bb7d32410b86209f4db8af041fb09f914dde81cbce8bd2441edb
[INFO] running `Command { std: "docker" "start" "-a" "5fbedfbdd782bb7d32410b86209f4db8af041fb09f914dde81cbce8bd2441edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fbedfbdd782bb7d32410b86209f4db8af041fb09f914dde81cbce8bd2441edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fbedfbdd782bb7d32410b86209f4db8af041fb09f914dde81cbce8bd2441edb", kill_on_drop: false }`
[INFO] [stdout] 5fbedfbdd782bb7d32410b86209f4db8af041fb09f914dde81cbce8bd2441edb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 346a66b52c81a42d54bd01f970e57aa484a62773b3e2e6bca70956530eba951b
[INFO] running `Command { std: "docker" "start" "-a" "346a66b52c81a42d54bd01f970e57aa484a62773b3e2e6bca70956530eba951b", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling cc v1.0.34
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling subtle v2.0.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling block-padding v0.1.3
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling curve25519-dalek v1.1.3
[INFO] [stderr]    Compiling x25519-dalek v0.5.2
[INFO] [stderr]    Compiling udplinktest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]  --> src/server/udp.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stdout]   |            ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]  --> src/server/udp.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stdout]   |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_buffer`
[INFO] [stdout]    --> src/packets/netserde.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn get_buffer<'a>(&'a self) -> &'a Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `timestamp`
[INFO] [stdout]   --> src/packets/packet.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn timestamp(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]   --> src/packets/packet.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn size() -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `KeyExchangePacket`
[INFO] [stdout]    --> src/packets/packet.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub struct KeyExchangePacket {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_syn`
[INFO] [stdout]    --> src/packets/packet.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn create_syn() -> (KeyExchangePacket, x25519_dalek::EphemeralSecret) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_ack`
[INFO] [stdout]    --> src/packets/packet.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn create_ack(encryptor: &mut impl Encryptor, client_key: &[u8]) -> KeyExchangePacket {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_challenge_syn`
[INFO] [stdout]    --> src/packets/packet.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn create_challenge_syn(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_challenge_ack`
[INFO] [stdout]    --> src/packets/packet.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub fn create_challenge_ack(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/server/udp.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Statistics`
[INFO] [stdout]  --> src/server/session.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Statistics {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Key`
[INFO] [stdout]   --> src/server/session.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Key {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Session`
[INFO] [stdout]   --> src/server/session.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Session {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_syn`
[INFO] [stdout]   --> src/packets/packet.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn is_syn(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_ack`
[INFO] [stdout]   --> src/packets/packet.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn is_ack(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_fin`
[INFO] [stdout]   --> src/packets/packet.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn is_fin(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_key_syn`
[INFO] [stdout]   --> src/packets/packet.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn is_key_syn(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_key_ack`
[INFO] [stdout]   --> src/packets/packet.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn is_key_ack(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_challenge_syn`
[INFO] [stdout]   --> src/packets/packet.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn is_challenge_syn(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_challenge_ack`
[INFO] [stdout]   --> src/packets/packet.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn is_challenge_ack(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.98s
[INFO] running `Command { std: "docker" "inspect" "346a66b52c81a42d54bd01f970e57aa484a62773b3e2e6bca70956530eba951b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "346a66b52c81a42d54bd01f970e57aa484a62773b3e2e6bca70956530eba951b", kill_on_drop: false }`
[INFO] [stdout] 346a66b52c81a42d54bd01f970e57aa484a62773b3e2e6bca70956530eba951b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a02927436f8e9906c945343e0cd2438aedba12aa4518a7af957b0a70f7e5ef6
[INFO] running `Command { std: "docker" "start" "-a" "3a02927436f8e9906c945343e0cd2438aedba12aa4518a7af957b0a70f7e5ef6", kill_on_drop: false }`
[INFO] [stderr]    Compiling udplinktest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]  --> src/server/udp.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stdout]   |            ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `port`
[INFO] [stdout]  --> src/server/udp.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stdout]   |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]   --> src/packets/packet.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn size() -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `KeyExchangePacket`
[INFO] [stdout]    --> src/packets/packet.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub struct KeyExchangePacket {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_syn`
[INFO] [stdout]    --> src/packets/packet.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn create_syn() -> (KeyExchangePacket, x25519_dalek::EphemeralSecret) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_ack`
[INFO] [stdout]    --> src/packets/packet.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn create_ack(encryptor: &mut impl Encryptor, client_key: &[u8]) -> KeyExchangePacket {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_challenge_syn`
[INFO] [stdout]    --> src/packets/packet.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn create_challenge_syn(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_challenge_ack`
[INFO] [stdout]    --> src/packets/packet.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub fn create_challenge_ack(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/server/udp.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Statistics`
[INFO] [stdout]  --> src/server/session.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Statistics {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Key`
[INFO] [stdout]   --> src/server/session.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Key {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Session`
[INFO] [stdout]   --> src/server/session.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Session {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_syn`
[INFO] [stdout]   --> src/packets/packet.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn is_syn(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_ack`
[INFO] [stdout]   --> src/packets/packet.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn is_ack(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_fin`
[INFO] [stdout]   --> src/packets/packet.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn is_fin(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_key_syn`
[INFO] [stdout]   --> src/packets/packet.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn is_key_syn(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_key_ack`
[INFO] [stdout]   --> src/packets/packet.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn is_key_ack(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_challenge_syn`
[INFO] [stdout]   --> src/packets/packet.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn is_challenge_syn(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_challenge_ack`
[INFO] [stdout]   --> src/packets/packet.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn is_challenge_ack(flag: u8) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "3a02927436f8e9906c945343e0cd2438aedba12aa4518a7af957b0a70f7e5ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a02927436f8e9906c945343e0cd2438aedba12aa4518a7af957b0a70f7e5ef6", kill_on_drop: false }`
[INFO] [stdout] 3a02927436f8e9906c945343e0cd2438aedba12aa4518a7af957b0a70f7e5ef6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 71ee56921b17f03ff380416318c039386a16515c903e77d79815cb54e3055204
[INFO] running `Command { std: "docker" "start" "-a" "71ee56921b17f03ff380416318c039386a16515c903e77d79815cb54e3055204", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]  --> src/server/udp.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stderr]   |            ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]  --> src/server/udp.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stderr]   |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_port`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `size`
[INFO] [stderr]   --> src/packets/packet.rs:71:12
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn size() -> usize {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `KeyExchangePacket`
[INFO] [stderr]    --> src/packets/packet.rs:111:12
[INFO] [stderr]     |
[INFO] [stderr] 111 | pub struct KeyExchangePacket {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `create_syn`
[INFO] [stderr]    --> src/packets/packet.rs:118:12
[INFO] [stderr]     |
[INFO] [stderr] 118 |     pub fn create_syn() -> (KeyExchangePacket, x25519_dalek::EphemeralSecret) {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `create_ack`
[INFO] [stderr]    --> src/packets/packet.rs:129:12
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn create_ack(encryptor: &mut impl Encryptor, client_key: &[u8]) -> KeyExchangePacket {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `create_challenge_syn`
[INFO] [stderr]    --> src/packets/packet.rs:142:12
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn create_challenge_syn(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `create_challenge_ack`
[INFO] [stderr]    --> src/packets/packet.rs:163:12
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn create_challenge_ack(encryptor: &mut impl Encryptor) -> (KeyExchangePacket, [u8; 32]) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/server/udp.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run(addr: &str, port: u16) -> std::io::Result<()> {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Statistics`
[INFO] [stderr]  --> src/server/session.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Statistics {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Key`
[INFO] [stderr]   --> src/server/session.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Key {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Session`
[INFO] [stderr]   --> src/server/session.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct Session {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_syn`
[INFO] [stderr]   --> src/packets/packet.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn is_syn(flag: u8) -> bool {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_ack`
[INFO] [stderr]   --> src/packets/packet.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn is_ack(flag: u8) -> bool {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_fin`
[INFO] [stderr]   --> src/packets/packet.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn is_fin(flag: u8) -> bool {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_key_syn`
[INFO] [stderr]   --> src/packets/packet.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn is_key_syn(flag: u8) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_key_ack`
[INFO] [stderr]   --> src/packets/packet.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn is_key_ack(flag: u8) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_challenge_syn`
[INFO] [stderr]   --> src/packets/packet.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn is_challenge_syn(flag: u8) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_challenge_ack`
[INFO] [stderr]   --> src/packets/packet.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn is_challenge_ack(flag: u8) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `udplinktest` (bin "udplinktest" test) generated 19 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/udplinktest-55741d8de907118a)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test packets::tests::test_numeric_seralisable ... ok
[INFO] [stdout] test packets::tests::test_numeric_deserialisable ... ok
[INFO] [stdout] test packets::tests::test_deserialiser_limit ... ok
[INFO] [stdout] test packets::tests::test_packet_deserialisation ... ok
[INFO] [stdout] test packets::tests::test_packet_serialisation ... ok
[INFO] [stdout] test packets::tests::test_serialiser ... ok
[INFO] [stdout] test packets::tests::test_serialiser_limit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "71ee56921b17f03ff380416318c039386a16515c903e77d79815cb54e3055204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ee56921b17f03ff380416318c039386a16515c903e77d79815cb54e3055204", kill_on_drop: false }`
[INFO] [stdout] 71ee56921b17f03ff380416318c039386a16515c903e77d79815cb54e3055204