[INFO] cloning repository https://github.com/r-4spberry/rustcraft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/r-4spberry/rustcraft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr-4spberry%2Frustcraft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr-4spberry%2Frustcraft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22da481bca0f359f1c129a5e744c61c006123743
[INFO] checking r-4spberry/rustcraft against try#b98202ad067d72e45cec8be3d5c15d86ef0fd086 for pr-155193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr-4spberry%2Frustcraft" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/r-4spberry/rustcraft
[INFO] finished tweaking git repo https://github.com/r-4spberry/rustcraft
[INFO] tweaked toml for git repo https://github.com/r-4spberry/rustcraft written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/r-4spberry/rustcraft on toolchain b98202ad067d72e45cec8be3d5c15d86ef0fd086
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/r-4spberry/rustcraft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zmij v1.0.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c0e5371b6075093f83c2d1f8f4930721074d66d73da926c430347d58bc74b6d
[INFO] running `Command { std: "docker" "start" "-a" "3c0e5371b6075093f83c2d1f8f4930721074d66d73da926c430347d58bc74b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c0e5371b6075093f83c2d1f8f4930721074d66d73da926c430347d58bc74b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0e5371b6075093f83c2d1f8f4930721074d66d73da926c430347d58bc74b6d", kill_on_drop: false }`
[INFO] [stdout] 3c0e5371b6075093f83c2d1f8f4930721074d66d73da926c430347d58bc74b6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b98202ad067d72e45cec8be3d5c15d86ef0fd086" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef7c701e504bc521212bf83c57a33bfa035edcc1bc33224ade5924ba6d7699a9
[INFO] running `Command { std: "docker" "start" "-a" "ef7c701e504bc521212bf83c57a33bfa035edcc1bc33224ade5924ba6d7699a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling zmij v1.0.10
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]    Compiling serde_json v1.0.148
[INFO] [stderr]     Checking toml_parser v1.0.6+spec-1.1.0
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking jiff v0.2.18
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking mio v1.1.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.7
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking toml v0.9.10+spec-1.1.0
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking env_filter v0.1.4
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking rustcraft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `warn`
[INFO] [stdout]   --> src/net.rs:17:31
[INFO] [stdout]    |
[INFO] [stdout] 17 | use log::{debug, error, info, warn};
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncWriteExt`
[INFO] [stdout]  --> src/framing.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OwnedWriteHalf`
[INFO] [stdout]  --> src/framing.rs:3:38
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::net::tcp::{OwnedReadHalf, OwnedWriteHalf};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `any` and `thread::current`
[INFO] [stdout]  --> src/protocol.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{any, thread::current};
[INFO] [stdout]   |           ^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/protocol.rs:79:18
[INFO] [stdout]    |
[INFO] [stdout] 79 |         value |= ((bytes[i] as u64) << (i * 8));
[INFO] [stdout]    |                  ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -         value |= ((bytes[i] as u64) << (i * 8));
[INFO] [stdout] 79 +         value |= (bytes[i] as u64) << (i * 8) ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/main.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::{error, info, warn};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt`
[INFO] [stdout]   --> src/main.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]    |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::server::run_core`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::server::run_core;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/server.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |             _ => unimplemented!(),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/server.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             ServerMsg::Register { conn_id, out_tx } => {
[INFO] [stdout]    |             --------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 62 |             ServerMsg::Unregister { conn_id } => {
[INFO] [stdout]    |             --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 66 |             ServerMsg::Ping { conn_id, data } => {
[INFO] [stdout]    |             --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 74 |             ServerMsg::Status { conn_id } => {
[INFO] [stdout]    |             ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 87 |             _ => unimplemented!(),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `warn`
[INFO] [stdout]   --> src/net.rs:17:31
[INFO] [stdout]    |
[INFO] [stdout] 17 | use log::{debug, error, info, warn};
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncWriteExt`
[INFO] [stdout]  --> src/framing.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OwnedWriteHalf`
[INFO] [stdout]  --> src/framing.rs:3:38
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::net::tcp::{OwnedReadHalf, OwnedWriteHalf};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `any` and `thread::current`
[INFO] [stdout]  --> src/protocol.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{any, thread::current};
[INFO] [stdout]   |           ^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/protocol.rs:79:18
[INFO] [stdout]    |
[INFO] [stdout] 79 |         value |= ((bytes[i] as u64) << (i * 8));
[INFO] [stdout]    |                  ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -         value |= ((bytes[i] as u64) << (i * 8));
[INFO] [stdout] 79 +         value |= (bytes[i] as u64) << (i * 8) ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/main.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::{error, info, warn};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt`
[INFO] [stdout]   --> src/main.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]    |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::server::run_core`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::server::run_core;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/server.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |             _ => unimplemented!(),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/server.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             ServerMsg::Register { conn_id, out_tx } => {
[INFO] [stdout]    |             --------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 62 |             ServerMsg::Unregister { conn_id } => {
[INFO] [stdout]    |             --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 66 |             ServerMsg::Ping { conn_id, data } => {
[INFO] [stdout]    |             --------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 74 |             ServerMsg::Status { conn_id } => {
[INFO] [stdout]    |             ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 87 |             _ => unimplemented!(),
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out_tx`
[INFO] [stdout]    --> src/net.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     out_tx: mpsc::Sender<ServerPacket>,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_out_tx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Data` is never used
[INFO] [stdout]   --> src/protocol.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum Data {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_long` is never used
[INFO] [stdout]   --> src/protocol.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn create_long(value: u64) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_unsigned_short` is never used
[INFO] [stdout]   --> src/protocol.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn create_unsigned_short(value: u16) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_long` is never used
[INFO] [stdout]   --> src/protocol.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn read_long(bytes: &mut Vec<u8>) -> Result<u64, DataError> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `enforcesSecureChat` should have a snake case name
[INFO] [stdout]   --> src/server.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     enforcesSecureChat: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `enforces_secure_chat`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `BytesMut::split_to` that must be used
[INFO] [stdout]   --> src/framing.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     buf.split_to(header_len);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let _ = buf.split_to(header_len);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out_tx`
[INFO] [stdout]    --> src/net.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     out_tx: mpsc::Sender<ServerPacket>,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_out_tx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Data` is never used
[INFO] [stdout]   --> src/protocol.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum Data {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_long` is never used
[INFO] [stdout]   --> src/protocol.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn create_long(value: u64) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_unsigned_short` is never used
[INFO] [stdout]   --> src/protocol.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn create_unsigned_short(value: u16) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_long` is never used
[INFO] [stdout]   --> src/protocol.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn read_long(bytes: &mut Vec<u8>) -> Result<u64, DataError> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `enforcesSecureChat` should have a snake case name
[INFO] [stdout]   --> src/server.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     enforcesSecureChat: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `enforces_secure_chat`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `BytesMut::split_to` that must be used
[INFO] [stdout]   --> src/framing.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     buf.split_to(header_len);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let _ = buf.split_to(header_len);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.66s
[INFO] running `Command { std: "docker" "inspect" "ef7c701e504bc521212bf83c57a33bfa035edcc1bc33224ade5924ba6d7699a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef7c701e504bc521212bf83c57a33bfa035edcc1bc33224ade5924ba6d7699a9", kill_on_drop: false }`
[INFO] [stdout] ef7c701e504bc521212bf83c57a33bfa035edcc1bc33224ade5924ba6d7699a9
