[INFO] cloning repository https://github.com/U007D/chat-app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/U007D/chat-app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FU007D%2Fchat-app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FU007D%2Fchat-app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5fcb797a534e6a74dd07f52d655b9c64223f827
[INFO] testing U007D/chat-app against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FU007D%2Fchat-app" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/U007D/chat-app
[INFO] finished tweaking git repo https://github.com/U007D/chat-app
[INFO] tweaked toml for git repo https://github.com/U007D/chat-app written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/U007D/chat-app on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/U007D/chat-app 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "57fa376177b880575cab34c7d3458a3d0601767cc55579dadb649c3f89b619c7", kill_on_drop: false }`
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[INFO] [stdout] 3ae2787aeab26ddda4239af58515a396c139fe58066195b65316e0a0ffd3dcf0
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[INFO] [stderr]    Compiling learning_chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `App` is never constructed
[INFO] [stdout]   --> src/app.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct App {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `start` is never used
[INFO] [stdout]   --> src/app.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl App {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 22 |     pub fn start() -> Result<Self> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     IoError(IoError),
[INFO] [stdout]   |     ------- ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     IoError(IoError),
[INFO] [stdout] 8 +     IoError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     WebSocket(WsError),
[INFO] [stdout]    |     --------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     WebSocket(WsError),
[INFO] [stdout] 10 +     WebSocket(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `MissingNameArg`, `NoIpAddrFound`, `IpTypeMismatch`, and `NonTextMessageReceived` are never constructed
[INFO] [stdout]  --> src/error.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Error {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 5 |     MissingNameArg,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     NoIpAddrFound,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 7 |     IpTypeMismatch,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 8 |     IoError(IoError),
[INFO] [stdout] 9 |     NonTextMessageReceived,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/app.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn view(&mut self) -> Element<Message> {
[INFO] [stdout]    |             ^^^^^^^^^     ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |             |
[INFO] [stdout]    |             this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn view(&mut self) -> Element<'_, Message> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 18s
[INFO] running `Command { std: "docker" "inspect" "3ae2787aeab26ddda4239af58515a396c139fe58066195b65316e0a0ffd3dcf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ae2787aeab26ddda4239af58515a396c139fe58066195b65316e0a0ffd3dcf0", kill_on_drop: false }`
[INFO] [stdout] 3ae2787aeab26ddda4239af58515a396c139fe58066195b65316e0a0ffd3dcf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dd0824465ed8c70825eef9a6ccba8cadd11ae66f6d2773642e6e409a0d97fa5
[INFO] running `Command { std: "docker" "start" "-a" "5dd0824465ed8c70825eef9a6ccba8cadd11ae66f6d2773642e6e409a0d97fa5", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning_chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/app/unit_tests.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{Error, Result};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/app/unit_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cell`
[INFO] [stdout]  --> src/app/unit_tests.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cell::{Cell, RefCell};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Ipv4Addr` and `TcpListener`
[INFO] [stdout]  --> src/app/unit_tests.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::net::{Ipv4Addr, TcpListener};
[INFO] [stdout]   |                ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/app/unit_tests.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/app/unit_tests.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::RwLock`
[INFO] [stdout]  --> src/app/unit_tests.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::sync::RwLock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Handler`
[INFO] [stdout]   --> src/app/unit_tests.rs:10:30
[INFO] [stdout]    |
[INFO] [stdout] 10 | use ws::{connect, CloseCode, Handler};
[INFO] [stdout]    |                              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Borrow`
[INFO] [stdout]  --> src/app/unit_tests.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]   |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BorrowMut`
[INFO] [stdout]  --> src/app/unit_tests.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `listener_socket`
[INFO] [stdout]   --> src/app/unit_tests.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let listener_socket = app.local_socket;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_listener_socket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sut`
[INFO] [stdout]   --> src/app/unit_tests.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let sut = connect(stringly_socket, |out| {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_sut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `listener_thread` is never read
[INFO] [stdout]   --> src/app.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct App {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 17 |     local_socket: SocketAddr,
[INFO] [stdout] 18 |     listener_thread: JoinHandle<Result<()>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]   --> src/app/unit_tests.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Message {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     IoError(IoError),
[INFO] [stdout]   |     ------- ^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     IoError(IoError),
[INFO] [stdout] 8 +     IoError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     WebSocket(WsError),
[INFO] [stdout]    |     --------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     WebSocket(WsError),
[INFO] [stdout] 10 +     WebSocket(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `MissingNameArg` and `NonTextMessageReceived` are never constructed
[INFO] [stdout]  --> src/error.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Error {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 5 |     MissingNameArg,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     NonTextMessageReceived,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/app.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn view(&mut self) -> Element<Message> {
[INFO] [stdout]    |             ^^^^^^^^^     ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |             |
[INFO] [stdout]    |             this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn view(&mut self) -> Element<'_, Message> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start__app_starts` should have a snake case name
[INFO] [stdout]   --> src/app/unit_tests.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn start__app_starts() -> Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `start_app_starts`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ping__live_socket_replies_with_pong` should have a snake case name
[INFO] [stdout]   --> src/app/unit_tests.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn ping__live_socket_replies_with_pong() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `ping_live_socket_replies_with_pong`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.23s
[INFO] running `Command { std: "docker" "inspect" "5dd0824465ed8c70825eef9a6ccba8cadd11ae66f6d2773642e6e409a0d97fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dd0824465ed8c70825eef9a6ccba8cadd11ae66f6d2773642e6e409a0d97fa5", kill_on_drop: false }`
[INFO] [stdout] 5dd0824465ed8c70825eef9a6ccba8cadd11ae66f6d2773642e6e409a0d97fa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bd13b39a0d3e2906012062c5193cc5ff1bc012d702a4e377b171c3c53169ad6d
[INFO] running `Command { std: "docker" "start" "-a" "bd13b39a0d3e2906012062c5193cc5ff1bc012d702a4e377b171c3c53169ad6d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/app/unit_tests.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::{Error, Result};
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::any::Any`
[INFO] [stderr]  --> src/app/unit_tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::any::Any;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Cell`
[INFO] [stderr]  --> src/app/unit_tests.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::cell::{Cell, RefCell};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Ipv4Addr` and `TcpListener`
[INFO] [stderr]  --> src/app/unit_tests.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::net::{Ipv4Addr, TcpListener};
[INFO] [stderr]   |                ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/app/unit_tests.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/app/unit_tests.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::RwLock`
[INFO] [stderr]  --> src/app/unit_tests.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::sync::RwLock;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Handler`
[INFO] [stderr]   --> src/app/unit_tests.rs:10:30
[INFO] [stderr]    |
[INFO] [stderr] 10 | use ws::{connect, CloseCode, Handler};
[INFO] [stderr]    |                              ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Borrow`
[INFO] [stderr]  --> src/app/unit_tests.rs:4:19
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BorrowMut`
[INFO] [stderr]  --> src/app/unit_tests.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stderr]   |                           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `listener_socket`
[INFO] [stderr]   --> src/app/unit_tests.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let listener_socket = app.local_socket;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_listener_socket`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sut`
[INFO] [stderr]   --> src/app/unit_tests.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let sut = connect(stringly_socket, |out| {
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_sut`
[INFO] [stderr] 
[INFO] [stderr] warning: field `listener_thread` is never read
[INFO] [stderr]   --> src/app.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct App {
[INFO] [stderr]    |            --- field in this struct
[INFO] [stderr] 17 |     local_socket: SocketAddr,
[INFO] [stderr] 18 |     listener_thread: JoinHandle<Result<()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Message` is never used
[INFO] [stderr]   --> src/app/unit_tests.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Message {
[INFO] [stderr]    |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/error.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 |     IoError(IoError),
[INFO] [stderr]   |     ------- ^^^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 8 -     IoError(IoError),
[INFO] [stderr] 8 +     IoError(()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/error.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 |     WebSocket(WsError),
[INFO] [stderr]    |     --------- ^^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 10 -     WebSocket(WsError),
[INFO] [stderr] 10 +     WebSocket(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variants `MissingNameArg` and `NonTextMessageReceived` are never constructed
[INFO] [stderr]  --> src/error.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum Error {
[INFO] [stderr]   |          ----- variants in this enum
[INFO] [stderr] 5 |     MissingNameArg,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 9 |     NonTextMessageReceived,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/app.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn view(&mut self) -> Element<Message> {
[INFO] [stderr]    |             ^^^^^^^^^     ---------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |             |
[INFO] [stderr]    |             this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn view(&mut self) -> Element<'_, Message> {
[INFO] [stderr]    |                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: function `start__app_starts` should have a snake case name
[INFO] [stderr]   --> src/app/unit_tests.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn start__app_starts() -> Result<()> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `start_app_starts`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `ping__live_socket_replies_with_pong` should have a snake case name
[INFO] [stderr]   --> src/app/unit_tests.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn ping__live_socket_replies_with_pong() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `ping_live_socket_replies_with_pong`
[INFO] [stderr] 
[INFO] [stderr] warning: `learning_chat` (bin "learning_chat" test) generated 20 warnings (run `cargo fix --bin "learning_chat" --tests` to apply 8 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learning_chat-eb06bad28b84e607)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test app::unit_tests::start__app_starts ... ok
[INFO] [stdout] test app::unit_tests::ping__live_socket_replies_with_pong ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- app::unit_tests::ping__live_socket_replies_with_pong stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'app::unit_tests::ping__live_socket_replies_with_pong' panicked at src/app/unit_tests.rs:52:6:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: WS Error <Internal>: Unable to parse 127.0.0.1:4444 as url due to RelativeUrlWithoutBase
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x60354dfafb32 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x60354dfafb32 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x60354dfafb32 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x60354dfafb32 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x60354dfd8943 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x60354dfd8943 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x60354dfac173 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x60354dfac173 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x60354dfaf982 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x60354dfb10ac - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x60354dfb0f02 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x60354df4c274 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x60354df4c274 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x60354dfb1b8b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x60354dfb1b8b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x60354dfb185a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x60354dfb0029 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x60354dfb14ed - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x60354dfd7090 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x60354dfd7436 - core::result::unwrap_failed::hfbbd3c78a73fea3d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1761:5
[INFO] [stdout]   20:     0x60354df0bf2c - core::result::Result<T,E>::unwrap::haf2f58fe8f2396b5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x60354df0bf2c - learning_chat::app::unit_tests::ping__live_socket_replies_with_pong::h6b10cc92a98cf629
[INFO] [stdout]                                at /opt/rustwide/workdir/src/app/unit_tests.rs:52:6
[INFO] [stdout]   22:     0x60354df10d69 - learning_chat::app::unit_tests::ping__live_socket_replies_with_pong::{{closure}}::hc78012c4c923034d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/app/unit_tests.rs:33:41
[INFO] [stdout]   23:     0x60354df10d69 - core::ops::function::FnOnce::call_once::haea05edd359a79a8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x60354df519ab - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x60354df519ab - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x60354df50bee - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x60354df50bee - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x60354df50bee - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x60354df50bee - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x60354df50bee - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x60354df50bee - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x60354df50bee - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x60354df14794 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x60354df14794 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x60354df1813a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x60354df1813a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x60354df1813a - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x60354df1813a - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x60354df1813a - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x60354df1813a - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x60354df1813a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x60354dfb4ae7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x60354dfb4ae7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x60354dfb4ae7 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x790a0383caa4 - <unknown>
[INFO] [stdout]   46:     0x790a038c9a34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     app::unit_tests::ping__live_socket_replies_with_pong
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin learning_chat`
[INFO] running `Command { std: "docker" "inspect" "bd13b39a0d3e2906012062c5193cc5ff1bc012d702a4e377b171c3c53169ad6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd13b39a0d3e2906012062c5193cc5ff1bc012d702a4e377b171c3c53169ad6d", kill_on_drop: false }`
[INFO] [stdout] bd13b39a0d3e2906012062c5193cc5ff1bc012d702a4e377b171c3c53169ad6d
