[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] checking chryoung/udplinktest against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchryoung%2Fudplinktest" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chryoung/udplinktest on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", 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-9/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d3e415e95aec1ff32b00f80c7921735cd2bd8f9bcbfc23f67e739ba03a5b28d2
[INFO] running `Command { std: "docker" "start" "-a" "d3e415e95aec1ff32b00f80c7921735cd2bd8f9bcbfc23f67e739ba03a5b28d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3e415e95aec1ff32b00f80c7921735cd2bd8f9bcbfc23f67e739ba03a5b28d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e415e95aec1ff32b00f80c7921735cd2bd8f9bcbfc23f67e739ba03a5b28d2", kill_on_drop: false }`
[INFO] [stdout] d3e415e95aec1ff32b00f80c7921735cd2bd8f9bcbfc23f67e739ba03a5b28d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbdb4981b4b1d99986e06913612621b1f84f1c340c62c4ff218ba6a7b6d69cf4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bbdb4981b4b1d99986e06913612621b1f84f1c340c62c4ff218ba6a7b6d69cf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling cc v1.0.34
[INFO] [stderr]    Compiling subtle v2.0.0
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking block-padding v0.1.3
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking block-buffer v0.7.0
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]    Compiling curve25519-dalek v1.1.3
[INFO] [stderr]     Checking x25519-dalek v0.5.2
[INFO] [stderr]     Checking 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: 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: 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: 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]    = note: `#[warn(dead_code)]` on by default
[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: 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: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.33s
[INFO] running `Command { std: "docker" "inspect" "bbdb4981b4b1d99986e06913612621b1f84f1c340c62c4ff218ba6a7b6d69cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbdb4981b4b1d99986e06913612621b1f84f1c340c62c4ff218ba6a7b6d69cf4", kill_on_drop: false }`
[INFO] [stdout] bbdb4981b4b1d99986e06913612621b1f84f1c340c62c4ff218ba6a7b6d69cf4