[INFO] cloning repository https://github.com/2qif49lt/rustl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/2qif49lt/rustl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2qif49lt%2Frustl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2qif49lt%2Frustl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da053f60189f6758d194a88bf69d2049ca1643f5
[INFO] building 2qif49lt/rustl against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2qif49lt%2Frustl" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/2qif49lt/rustl on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/2qif49lt/rustl
[INFO] finished tweaking git repo https://github.com/2qif49lt/rustl
[INFO] tweaked toml for git repo https://github.com/2qif49lt/rustl written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/2qif49lt/rustl 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" "+334963c956d25708feab489a3816ae63f639355d" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af2fbc580d95f1ed77e1f4e163ce31445894cdd2d5140fc50d1ff1bdcfb42ef7
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[INFO] running `Command { std: "docker" "inspect" "af2fbc580d95f1ed77e1f4e163ce31445894cdd2d5140fc50d1ff1bdcfb42ef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af2fbc580d95f1ed77e1f4e163ce31445894cdd2d5140fc50d1ff1bdcfb42ef7", kill_on_drop: false }`
[INFO] [stdout] af2fbc580d95f1ed77e1f4e163ce31445894cdd2d5140fc50d1ff1bdcfb42ef7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39606f293e56f9393ddedf3925d1efc4f0a6c4a5ce86fea5dd957f99b0e0ddca
[INFO] running `Command { std: "docker" "start" "-a" "39606f293e56f9393ddedf3925d1efc4f0a6c4a5ce86fea5dd957f99b0e0ddca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.89
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[INFO] [stderr]    Compiling either v1.6.1
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[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling log v0.4.16
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[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
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[INFO] [stderr]    Compiling hashbrown v0.11.2
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[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tracing-core v0.1.23
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling futures-io v0.3.21
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[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling async-trait v0.1.53
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[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling tracing-log v0.1.2
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[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling mio v0.8.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling tracing-subscriber v0.3.9
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling prost-derive v0.9.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling prost v0.9.0
[INFO] [stderr]    Compiling tracing v0.1.32
[INFO] [stderr]    Compiling prost-types v0.9.0
[INFO] [stderr]    Compiling tcpsrv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling tokio-util v0.7.0
[INFO] [stdout] warning: glob import doesn't reexport anything with visibility `pub` because no imported item is public enough
[INFO] [stdout]  --> src/utils/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use mem::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the most public imported item is `pub(crate)`
[INFO] [stdout]  --> src/utils/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use mem::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   = help: reduce the glob import's visibility or increase visibility of imported items
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bytes::Bytes`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bytes::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SinkExt`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures::{SinkExt, StreamExt};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/service/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 57 |         CMD_HELLO_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] help: you might have meant to pattern match against the value of constant `CMD_ALIVE_REQ` instead of introducing a new catch-all binding
[INFO] [stdout]    |
[INFO] [stdout] 53 |         protocol::cmd::CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/service/mod.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 61 |         CMD_BYE_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to pattern match against the value of constant `CMD_ALIVE_REQ` instead of introducing a new catch-all binding
[INFO] [stdout]    |
[INFO] [stdout] 53 |         protocol::cmd::CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/service/mod.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 65 |         CMD_EXAMPLE_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to pattern match against the value of constant `CMD_ALIVE_REQ` instead of introducing a new catch-all binding
[INFO] [stdout]    |
[INFO] [stdout] 53 |         protocol::cmd::CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/service/mod.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 69 |         _ => Err(std::io::Error::new(std::io::ErrorKind::InvalidData, "cmd invalid"))?
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to pattern match against the value of constant `CMD_ALIVE_REQ` instead of introducing a new catch-all binding
[INFO] [stdout]    |
[INFO] [stdout] 53 |         protocol::cmd::CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `CMD_ALIVE_REQ`
[INFO] [stdout]   --> src/service/mod.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_CMD_ALIVE_REQ`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `CMD_HELLO_REQ`
[INFO] [stdout]   --> src/service/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         CMD_HELLO_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_CMD_HELLO_REQ`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     loop {
[INFO] [stdout] 26 | |         let (conn, remote) = listener.accept().await?;
[INFO] [stdout] 27 | |         info!("client connected {}", remote);
[INFO] [stdout] 28 | |         let mut transport = bind_transport(conn);
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |         });
[INFO] [stdout] 41 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 42 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/service/proc.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 |     async fn proc(&self, opt: u32) -> Result<Option<Vec<u8>>> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/service/proc.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |     async fn proc(&self, opt: u32) -> Result<Option<Vec<u8>>> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/service/proc.rs:48:26
[INFO] [stdout]    |
[INFO] [stdout] 48 |     async fn proc(&self, opt: u32) -> Result<Option<Vec<u8>>> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/service/proc.rs:58:26
[INFO] [stdout]    |
[INFO] [stdout] 58 |     async fn proc(&self, opt: u32) -> Result<Option<Vec<u8>>> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `hdr` is never read
[INFO] [stdout]   --> src/service/mod.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct ServiceInner<Hdr> {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 47 |     hdr: Hdr,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             transport.into_inner().shutdown().await;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let _ = transport.into_inner().shutdown().await;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `CMD_ALIVE_REQ` should have a snake case name
[INFO] [stdout]   --> src/service/mod.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `cmd_alive_req`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `CMD_HELLO_REQ` should have a snake case name
[INFO] [stdout]   --> src/service/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         CMD_HELLO_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `cmd_hello_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.18s
[INFO] running `Command { std: "docker" "inspect" "39606f293e56f9393ddedf3925d1efc4f0a6c4a5ce86fea5dd957f99b0e0ddca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39606f293e56f9393ddedf3925d1efc4f0a6c4a5ce86fea5dd957f99b0e0ddca", kill_on_drop: false }`
[INFO] [stdout] 39606f293e56f9393ddedf3925d1efc4f0a6c4a5ce86fea5dd957f99b0e0ddca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f401c66bf8612660e42ac570a779b0d638d564e689c4808ad2251213a054a32
[INFO] running `Command { std: "docker" "start" "-a" "4f401c66bf8612660e42ac570a779b0d638d564e689c4808ad2251213a054a32", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcpsrv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: glob import doesn't reexport anything with visibility `pub` because no imported item is public enough
[INFO] [stdout]  --> src/utils/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use mem::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the most public imported item is `pub(crate)`
[INFO] [stdout]  --> src/utils/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use mem::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   = help: reduce the glob import's visibility or increase visibility of imported items
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bytes::Bytes`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bytes::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SinkExt`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures::{SinkExt, StreamExt};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/service/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 57 |         CMD_HELLO_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] help: you might have meant to pattern match against the value of constant `CMD_ALIVE_REQ` instead of introducing a new catch-all binding
[INFO] [stdout]    |
[INFO] [stdout] 53 |         protocol::cmd::CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/service/mod.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 61 |         CMD_BYE_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to pattern match against the value of constant `CMD_ALIVE_REQ` instead of introducing a new catch-all binding
[INFO] [stdout]    |
[INFO] [stdout] 53 |         protocol::cmd::CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/service/mod.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 65 |         CMD_EXAMPLE_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to pattern match against the value of constant `CMD_ALIVE_REQ` instead of introducing a new catch-all binding
[INFO] [stdout]    |
[INFO] [stdout] 53 |         protocol::cmd::CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/service/mod.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ------------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 69 |         _ => Err(std::io::Error::new(std::io::ErrorKind::InvalidData, "cmd invalid"))?
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to pattern match against the value of constant `CMD_ALIVE_REQ` instead of introducing a new catch-all binding
[INFO] [stdout]    |
[INFO] [stdout] 53 |         protocol::cmd::CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `CMD_ALIVE_REQ`
[INFO] [stdout]   --> src/service/mod.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_CMD_ALIVE_REQ`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `CMD_HELLO_REQ`
[INFO] [stdout]   --> src/service/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         CMD_HELLO_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_CMD_HELLO_REQ`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     loop {
[INFO] [stdout] 26 | |         let (conn, remote) = listener.accept().await?;
[INFO] [stdout] 27 | |         info!("client connected {}", remote);
[INFO] [stdout] 28 | |         let mut transport = bind_transport(conn);
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |         });
[INFO] [stdout] 41 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 42 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/service/proc.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 |     async fn proc(&self, opt: u32) -> Result<Option<Vec<u8>>> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/service/proc.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |     async fn proc(&self, opt: u32) -> Result<Option<Vec<u8>>> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/service/proc.rs:48:26
[INFO] [stdout]    |
[INFO] [stdout] 48 |     async fn proc(&self, opt: u32) -> Result<Option<Vec<u8>>> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/service/proc.rs:58:26
[INFO] [stdout]    |
[INFO] [stdout] 58 |     async fn proc(&self, opt: u32) -> Result<Option<Vec<u8>>> {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `hdr` is never read
[INFO] [stdout]   --> src/service/mod.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct ServiceInner<Hdr> {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 47 |     hdr: Hdr,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             transport.into_inner().shutdown().await;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let _ = transport.into_inner().shutdown().await;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `CMD_ALIVE_REQ` should have a snake case name
[INFO] [stdout]   --> src/service/mod.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         CMD_ALIVE_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `cmd_alive_req`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `CMD_HELLO_REQ` should have a snake case name
[INFO] [stdout]   --> src/service/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         CMD_HELLO_REQ => {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `cmd_hello_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "4f401c66bf8612660e42ac570a779b0d638d564e689c4808ad2251213a054a32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f401c66bf8612660e42ac570a779b0d638d564e689c4808ad2251213a054a32", kill_on_drop: false }`
[INFO] [stdout] 4f401c66bf8612660e42ac570a779b0d638d564e689c4808ad2251213a054a32
