[INFO] cloning repository https://github.com/isaac-parks/rustwebserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/isaac-parks/rustwebserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisaac-parks%2Frustwebserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisaac-parks%2Frustwebserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5aa4964c8890ffc16a3d3d60b4f660a5bf69c1aa
[INFO] testing isaac-parks/rustwebserver against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisaac-parks%2Frustwebserver" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/isaac-parks/rustwebserver
[INFO] finished tweaking git repo https://github.com/isaac-parks/rustwebserver
[INFO] tweaked toml for git repo https://github.com/isaac-parks/rustwebserver written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/isaac-parks/rustwebserver on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/isaac-parks/rustwebserver 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f4d9fa75e081c1d556330feeec152ac5d8fa445744b6e20563505044d5e3afb
[INFO] running `Command { std: "docker" "start" "-a" "9f4d9fa75e081c1d556330feeec152ac5d8fa445744b6e20563505044d5e3afb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f4d9fa75e081c1d556330feeec152ac5d8fa445744b6e20563505044d5e3afb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f4d9fa75e081c1d556330feeec152ac5d8fa445744b6e20563505044d5e3afb", kill_on_drop: false }`
[INFO] [stdout] 9f4d9fa75e081c1d556330feeec152ac5d8fa445744b6e20563505044d5e3afb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a785a50beb6462e71d59c43cb00561b10114cef04daeacf886988692d918e42
[INFO] running `Command { std: "docker" "start" "-a" "0a785a50beb6462e71d59c43cb00561b10114cef04daeacf886988692d918e42", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling rustwebserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Frame`
[INFO] [stdout]  --> websocket.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::controller::{Frame, WebSocketConnection};
[INFO] [stdout]   |                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     if (!test_server::init()) {
[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] 13 -     if (!test_server::init()) {
[INFO] [stdout] 13 +     if !test_server::init()  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `is_valid` and `body` are never read
[INFO] [stdout]   --> request.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Request {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 10 |     pub is_valid: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub body: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `body` is never read
[INFO] [stdout]  --> response.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Response {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     pub headers: HashMap<String, String>,
[INFO] [stdout] 6 |     pub body: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Response` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> response.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Response {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `close_connections` and `alert_all` are never used
[INFO] [stdout]   --> websocket.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'a> WebSocket<'a> {
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn close_connections(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn alert_all(&mut self, message: String) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> websocket.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             c.send(message.clone());
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let _ = c.send(message.clone());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.35s
[INFO] running `Command { std: "docker" "inspect" "0a785a50beb6462e71d59c43cb00561b10114cef04daeacf886988692d918e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a785a50beb6462e71d59c43cb00561b10114cef04daeacf886988692d918e42", kill_on_drop: false }`
[INFO] [stdout] 0a785a50beb6462e71d59c43cb00561b10114cef04daeacf886988692d918e42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b1864302392e9eebe194c4c04052cc4a9fc23327e52355231478f503a4d429b
[INFO] running `Command { std: "docker" "start" "-a" "2b1864302392e9eebe194c4c04052cc4a9fc23327e52355231478f503a4d429b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustwebserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Frame`
[INFO] [stdout]  --> websocket.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::controller::{Frame, WebSocketConnection};
[INFO] [stdout]   |                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     if (!test_server::init()) {
[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] 13 -     if (!test_server::init()) {
[INFO] [stdout] 13 +     if !test_server::init()  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `is_valid` and `body` are never read
[INFO] [stdout]   --> request.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Request {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 10 |     pub is_valid: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub body: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `body` is never read
[INFO] [stdout]  --> response.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Response {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     pub headers: HashMap<String, String>,
[INFO] [stdout] 6 |     pub body: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Response` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> response.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Response {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `close_connections` and `alert_all` are never used
[INFO] [stdout]   --> websocket.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'a> WebSocket<'a> {
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn close_connections(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn alert_all(&mut self, message: String) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> websocket.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             c.send(message.clone());
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let _ = c.send(message.clone());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "2b1864302392e9eebe194c4c04052cc4a9fc23327e52355231478f503a4d429b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b1864302392e9eebe194c4c04052cc4a9fc23327e52355231478f503a4d429b", kill_on_drop: false }`
[INFO] [stdout] 2b1864302392e9eebe194c4c04052cc4a9fc23327e52355231478f503a4d429b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c9927af9d14ca5554d52250c12976fad5585fc6fc709b017aac4296238af4ea1
[INFO] running `Command { std: "docker" "start" "-a" "c9927af9d14ca5554d52250c12976fad5585fc6fc709b017aac4296238af4ea1", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Frame`
[INFO] [stderr]  --> websocket.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::controller::{Frame, WebSocketConnection};
[INFO] [stderr]   |                         ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> main.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 |     if (!test_server::init()) {
[INFO] [stderr]    |        ^                    ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 13 -     if (!test_server::init()) {
[INFO] [stderr] 13 +     if !test_server::init()  {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `is_valid` and `body` are never read
[INFO] [stderr]   --> request.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub struct Request {
[INFO] [stderr]    |            ------- fields in this struct
[INFO] [stderr] 10 |     pub is_valid: bool,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 13 |     pub body: String,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `body` is never read
[INFO] [stderr]  --> response.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Response {
[INFO] [stderr]   |            -------- field in this struct
[INFO] [stderr] 5 |     pub headers: HashMap<String, String>,
[INFO] [stderr] 6 |     pub body: String,
[INFO] [stderr]   |         ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Response` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> response.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr]  9 | impl Response {
[INFO] [stderr]    | ------------- associated function in this implementation
[INFO] [stderr] 10 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `close_connections` and `alert_all` are never used
[INFO] [stderr]   --> websocket.rs:83:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<'a> WebSocket<'a> {
[INFO] [stderr]    | ---------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 83 |     fn close_connections(&mut self) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 87 |     pub fn alert_all(&mut self, message: String) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> websocket.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |             c.send(message.clone());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 89 |             let _ = c.send(message.clone());
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rustwebserver` (bin "rustwebserver" test) generated 7 warnings (run `cargo fix --bin "rustwebserver" -p rustwebserver --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests main.rs (/opt/rustwide/target/debug/deps/rustwebserver-b38b546dd08ba1fb)
[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" "c9927af9d14ca5554d52250c12976fad5585fc6fc709b017aac4296238af4ea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9927af9d14ca5554d52250c12976fad5585fc6fc709b017aac4296238af4ea1", kill_on_drop: false }`
[INFO] [stdout] c9927af9d14ca5554d52250c12976fad5585fc6fc709b017aac4296238af4ea1