[INFO] cloning repository https://github.com/luyikk/kcp_server_echo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luyikk/kcp_server_echo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluyikk%2Fkcp_server_echo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluyikk%2Fkcp_server_echo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6351a8edf0eaf34ecddaa513c7b6b5f5ba591aa1
[INFO] testing luyikk/kcp_server_echo against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluyikk%2Fkcp_server_echo" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luyikk/kcp_server_echo on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luyikk/kcp_server_echo
[INFO] finished tweaking git repo https://github.com/luyikk/kcp_server_echo
[INFO] tweaked toml for git repo https://github.com/luyikk/kcp_server_echo written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/luyikk/kcp_server_echo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9f278a83d0014718c24749754ff36e1cead665aca7ca5001a9ae67d08c84d19
[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" "e9f278a83d0014718c24749754ff36e1cead665aca7ca5001a9ae67d08c84d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9f278a83d0014718c24749754ff36e1cead665aca7ca5001a9ae67d08c84d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f278a83d0014718c24749754ff36e1cead665aca7ca5001a9ae67d08c84d19", kill_on_drop: false }`
[INFO] [stdout] e9f278a83d0014718c24749754ff36e1cead665aca7ca5001a9ae67d08c84d19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0015232fc6c1b1ec8516aeb4dff9ee26092d0af71249e27358377027ffaf8dd
[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" "c0015232fc6c1b1ec8516aeb4dff9ee26092d0af71249e27358377027ffaf8dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling pin-project-lite v0.1.7
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling udp_server v0.3.2
[INFO] [stderr]    Compiling kcp_server_echo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `flush_async`
[INFO] [stdout]   --> src/kcp_server/kcp_peer.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub async fn flush_async(&self)->  KcpResult<()>{
[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: `flush_async`
[INFO] [stdout]   --> src/kcp_server/kcp_peer.rs:96:18
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub async fn flush_async(&self)->  KcpResult<()>{
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_conv`
[INFO] [stdout]   --> src/kcp/kcp.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn get_conv(buf: &mut Bytes) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_conv`
[INFO] [stdout]   --> src/kcp/kcp.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn set_conv(buf: &mut BytesMut, conv: u32) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]    --> src/kcp/kcp.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     state: i32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_stream`
[INFO] [stdout]    --> src/kcp/kcp.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn new_stream(conv: u32, output: Arc<UdpSend>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `input_conv`
[INFO] [stdout]    --> src/kcp/kcp.rs:552:12
[INFO] [stdout]     |
[INFO] [stdout] 552 |     pub fn input_conv(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `waiting_conv`
[INFO] [stdout]    --> src/kcp/kcp.rs:558:12
[INFO] [stdout]     |
[INFO] [stdout] 558 |     pub fn waiting_conv(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_conv`
[INFO] [stdout]    --> src/kcp/kcp.rs:564:12
[INFO] [stdout]     |
[INFO] [stdout] 564 |     pub fn set_conv(&mut self, conv: u32) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `conv`
[INFO] [stdout]    --> src/kcp/kcp.rs:570:12
[INFO] [stdout]     |
[INFO] [stdout] 570 |     pub fn conv(&self) -> u32 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `flush_ack`
[INFO] [stdout]    --> src/kcp/kcp.rs:816:18
[INFO] [stdout]     |
[INFO] [stdout] 816 |     pub async fn flush_ack(&mut self) -> KcpResult<()> {
[INFO] [stdout]     |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `flush_async`
[INFO] [stdout]    --> src/kcp/kcp.rs:970:18
[INFO] [stdout]     |
[INFO] [stdout] 970 |     pub async fn flush_async(&mut self)-> KcpResult<()> {
[INFO] [stdout]     |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check`
[INFO] [stdout]     --> src/kcp/kcp.rs:1014:12
[INFO] [stdout]      |
[INFO] [stdout] 1014 |     pub fn check(&self, current: u32) -> u32 {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mtu`
[INFO] [stdout]     --> src/kcp/kcp.rs:1067:12
[INFO] [stdout]      |
[INFO] [stdout] 1067 |     pub fn mtu(&self) -> usize {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `snd_wnd`
[INFO] [stdout]     --> src/kcp/kcp.rs:1128:12
[INFO] [stdout]      |
[INFO] [stdout] 1128 |     pub fn snd_wnd(&self) -> u16 {
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rcv_wnd`
[INFO] [stdout]     --> src/kcp/kcp.rs:1133:12
[INFO] [stdout]      |
[INFO] [stdout] 1133 |     pub fn rcv_wnd(&self) -> u16 {
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `wait_snd`
[INFO] [stdout]     --> src/kcp/kcp.rs:1138:12
[INFO] [stdout]      |
[INFO] [stdout] 1138 |     pub fn wait_snd(&self) -> usize {
[INFO] [stdout]      |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `header_len`
[INFO] [stdout]     --> src/kcp/kcp.rs:1153:12
[INFO] [stdout]      |
[INFO] [stdout] 1153 |     pub fn header_len() -> usize {
[INFO] [stdout]      |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_stream`
[INFO] [stdout]     --> src/kcp/kcp.rs:1158:12
[INFO] [stdout]      |
[INFO] [stdout] 1158 |     pub fn is_stream(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mss`
[INFO] [stdout]     --> src/kcp/kcp.rs:1163:12
[INFO] [stdout]      |
[INFO] [stdout] 1163 |     pub fn mss(&self) -> u32 {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_maximum_resend_times`
[INFO] [stdout]     --> src/kcp/kcp.rs:1168:12
[INFO] [stdout]      |
[INFO] [stdout] 1168 |     pub fn set_maximum_resend_times(&mut self, dead_link: u32) {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_dead_link`
[INFO] [stdout]     --> src/kcp/kcp.rs:1173:12
[INFO] [stdout]      |
[INFO] [stdout] 1173 |     pub fn is_dead_link(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.06s
[INFO] running `Command { std: "docker" "inspect" "c0015232fc6c1b1ec8516aeb4dff9ee26092d0af71249e27358377027ffaf8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0015232fc6c1b1ec8516aeb4dff9ee26092d0af71249e27358377027ffaf8dd", kill_on_drop: false }`
[INFO] [stdout] c0015232fc6c1b1ec8516aeb4dff9ee26092d0af71249e27358377027ffaf8dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f06846801e172848d216445a56ad62f92bf2bef28fc2b8cc79a891fdc582b62
[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" "3f06846801e172848d216445a56ad62f92bf2bef28fc2b8cc79a891fdc582b62", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling kcp_server_echo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `flush_async`
[INFO] [stdout]   --> src/kcp_server/kcp_peer.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub async fn flush_async(&self)->  KcpResult<()>{
[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: `flush_async`
[INFO] [stdout]   --> src/kcp_server/kcp_peer.rs:96:18
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub async fn flush_async(&self)->  KcpResult<()>{
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_conv`
[INFO] [stdout]   --> src/kcp/kcp.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn get_conv(buf: &mut Bytes) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_conv`
[INFO] [stdout]   --> src/kcp/kcp.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn set_conv(buf: &mut BytesMut, conv: u32) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]    --> src/kcp/kcp.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     state: i32,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_stream`
[INFO] [stdout]    --> src/kcp/kcp.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn new_stream(conv: u32, output: Arc<UdpSend>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `input_conv`
[INFO] [stdout]    --> src/kcp/kcp.rs:552:12
[INFO] [stdout]     |
[INFO] [stdout] 552 |     pub fn input_conv(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `waiting_conv`
[INFO] [stdout]    --> src/kcp/kcp.rs:558:12
[INFO] [stdout]     |
[INFO] [stdout] 558 |     pub fn waiting_conv(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_conv`
[INFO] [stdout]    --> src/kcp/kcp.rs:564:12
[INFO] [stdout]     |
[INFO] [stdout] 564 |     pub fn set_conv(&mut self, conv: u32) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `conv`
[INFO] [stdout]    --> src/kcp/kcp.rs:570:12
[INFO] [stdout]     |
[INFO] [stdout] 570 |     pub fn conv(&self) -> u32 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `flush_ack`
[INFO] [stdout]    --> src/kcp/kcp.rs:816:18
[INFO] [stdout]     |
[INFO] [stdout] 816 |     pub async fn flush_ack(&mut self) -> KcpResult<()> {
[INFO] [stdout]     |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `flush_async`
[INFO] [stdout]    --> src/kcp/kcp.rs:970:18
[INFO] [stdout]     |
[INFO] [stdout] 970 |     pub async fn flush_async(&mut self)-> KcpResult<()> {
[INFO] [stdout]     |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check`
[INFO] [stdout]     --> src/kcp/kcp.rs:1014:12
[INFO] [stdout]      |
[INFO] [stdout] 1014 |     pub fn check(&self, current: u32) -> u32 {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mtu`
[INFO] [stdout]     --> src/kcp/kcp.rs:1067:12
[INFO] [stdout]      |
[INFO] [stdout] 1067 |     pub fn mtu(&self) -> usize {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `snd_wnd`
[INFO] [stdout]     --> src/kcp/kcp.rs:1128:12
[INFO] [stdout]      |
[INFO] [stdout] 1128 |     pub fn snd_wnd(&self) -> u16 {
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rcv_wnd`
[INFO] [stdout]     --> src/kcp/kcp.rs:1133:12
[INFO] [stdout]      |
[INFO] [stdout] 1133 |     pub fn rcv_wnd(&self) -> u16 {
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `wait_snd`
[INFO] [stdout]     --> src/kcp/kcp.rs:1138:12
[INFO] [stdout]      |
[INFO] [stdout] 1138 |     pub fn wait_snd(&self) -> usize {
[INFO] [stdout]      |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `header_len`
[INFO] [stdout]     --> src/kcp/kcp.rs:1153:12
[INFO] [stdout]      |
[INFO] [stdout] 1153 |     pub fn header_len() -> usize {
[INFO] [stdout]      |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_stream`
[INFO] [stdout]     --> src/kcp/kcp.rs:1158:12
[INFO] [stdout]      |
[INFO] [stdout] 1158 |     pub fn is_stream(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mss`
[INFO] [stdout]     --> src/kcp/kcp.rs:1163:12
[INFO] [stdout]      |
[INFO] [stdout] 1163 |     pub fn mss(&self) -> u32 {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_maximum_resend_times`
[INFO] [stdout]     --> src/kcp/kcp.rs:1168:12
[INFO] [stdout]      |
[INFO] [stdout] 1168 |     pub fn set_maximum_resend_times(&mut self, dead_link: u32) {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_dead_link`
[INFO] [stdout]     --> src/kcp/kcp.rs:1173:12
[INFO] [stdout]      |
[INFO] [stdout] 1173 |     pub fn is_dead_link(&self) -> bool {
[INFO] [stdout]      |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `Command { std: "docker" "inspect" "3f06846801e172848d216445a56ad62f92bf2bef28fc2b8cc79a891fdc582b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f06846801e172848d216445a56ad62f92bf2bef28fc2b8cc79a891fdc582b62", kill_on_drop: false }`
[INFO] [stdout] 3f06846801e172848d216445a56ad62f92bf2bef28fc2b8cc79a891fdc582b62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9cb68c7dbfd9b4a73d41f1ce7bd1eebe574d269ddd6947c62c9beddaf5f8a04a
[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" "9cb68c7dbfd9b4a73d41f1ce7bd1eebe574d269ddd6947c62c9beddaf5f8a04a", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `flush_async`
[INFO] [stderr]   --> src/kcp_server/kcp_peer.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub async fn flush_async(&self)->  KcpResult<()>{
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `flush_async`
[INFO] [stderr]   --> src/kcp_server/kcp_peer.rs:96:18
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub async fn flush_async(&self)->  KcpResult<()>{
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_conv`
[INFO] [stderr]   --> src/kcp/kcp.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn get_conv(buf: &mut Bytes) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set_conv`
[INFO] [stderr]   --> src/kcp/kcp.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub fn set_conv(buf: &mut BytesMut, conv: u32) {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `state`
[INFO] [stderr]    --> src/kcp/kcp.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     state: i32,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_stream`
[INFO] [stderr]    --> src/kcp/kcp.rs:238:12
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn new_stream(conv: u32, output: Arc<UdpSend>) -> Self {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `input_conv`
[INFO] [stderr]    --> src/kcp/kcp.rs:552:12
[INFO] [stderr]     |
[INFO] [stderr] 552 |     pub fn input_conv(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `waiting_conv`
[INFO] [stderr]    --> src/kcp/kcp.rs:558:12
[INFO] [stderr]     |
[INFO] [stderr] 558 |     pub fn waiting_conv(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_conv`
[INFO] [stderr]    --> src/kcp/kcp.rs:564:12
[INFO] [stderr]     |
[INFO] [stderr] 564 |     pub fn set_conv(&mut self, conv: u32) {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `conv`
[INFO] [stderr]    --> src/kcp/kcp.rs:570:12
[INFO] [stderr]     |
[INFO] [stderr] 570 |     pub fn conv(&self) -> u32 {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `flush_ack`
[INFO] [stderr]    --> src/kcp/kcp.rs:816:18
[INFO] [stderr]     |
[INFO] [stderr] 816 |     pub async fn flush_ack(&mut self) -> KcpResult<()> {
[INFO] [stderr]     |                  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `flush_async`
[INFO] [stderr]    --> src/kcp/kcp.rs:970:18
[INFO] [stderr]     |
[INFO] [stderr] 970 |     pub async fn flush_async(&mut self)-> KcpResult<()> {
[INFO] [stderr]     |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `check`
[INFO] [stderr]     --> src/kcp/kcp.rs:1014:12
[INFO] [stderr]      |
[INFO] [stderr] 1014 |     pub fn check(&self, current: u32) -> u32 {
[INFO] [stderr]      |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mtu`
[INFO] [stderr]     --> src/kcp/kcp.rs:1067:12
[INFO] [stderr]      |
[INFO] [stderr] 1067 |     pub fn mtu(&self) -> usize {
[INFO] [stderr]      |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `snd_wnd`
[INFO] [stderr]     --> src/kcp/kcp.rs:1128:12
[INFO] [stderr]      |
[INFO] [stderr] 1128 |     pub fn snd_wnd(&self) -> u16 {
[INFO] [stderr]      |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rcv_wnd`
[INFO] [stderr]     --> src/kcp/kcp.rs:1133:12
[INFO] [stderr]      |
[INFO] [stderr] 1133 |     pub fn rcv_wnd(&self) -> u16 {
[INFO] [stderr]      |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `wait_snd`
[INFO] [stderr]     --> src/kcp/kcp.rs:1138:12
[INFO] [stderr]      |
[INFO] [stderr] 1138 |     pub fn wait_snd(&self) -> usize {
[INFO] [stderr]      |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `header_len`
[INFO] [stderr]     --> src/kcp/kcp.rs:1153:12
[INFO] [stderr]      |
[INFO] [stderr] 1153 |     pub fn header_len() -> usize {
[INFO] [stderr]      |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_stream`
[INFO] [stderr]     --> src/kcp/kcp.rs:1158:12
[INFO] [stderr]      |
[INFO] [stderr] 1158 |     pub fn is_stream(&self) -> bool {
[INFO] [stderr]      |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mss`
[INFO] [stderr]     --> src/kcp/kcp.rs:1163:12
[INFO] [stderr]      |
[INFO] [stderr] 1163 |     pub fn mss(&self) -> u32 {
[INFO] [stderr]      |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_maximum_resend_times`
[INFO] [stderr]     --> src/kcp/kcp.rs:1168:12
[INFO] [stderr]      |
[INFO] [stderr] 1168 |     pub fn set_maximum_resend_times(&mut self, dead_link: u32) {
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_dead_link`
[INFO] [stderr]     --> src/kcp/kcp.rs:1173:12
[INFO] [stderr]      |
[INFO] [stderr] 1173 |     pub fn is_dead_link(&self) -> bool {
[INFO] [stderr]      |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kcp_server_echo-efb1d32cfae63b1d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9cb68c7dbfd9b4a73d41f1ce7bd1eebe574d269ddd6947c62c9beddaf5f8a04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cb68c7dbfd9b4a73d41f1ce7bd1eebe574d269ddd6947c62c9beddaf5f8a04a", kill_on_drop: false }`
[INFO] [stdout] 9cb68c7dbfd9b4a73d41f1ce7bd1eebe574d269ddd6947c62c9beddaf5f8a04a