[INFO] cloning repository https://github.com/Reza-Darius/porto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Reza-Darius/porto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FReza-Darius%2Fporto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FReza-Darius%2Fporto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92a079fbc386ad4a02be18847f7b33f1d5754dbc
[INFO] checking Reza-Darius/porto against master#656ccbe796ff98def9b555c118e1620c5389e3b2 for pr-133502-24
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FReza-Darius%2Fporto" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Reza-Darius/porto
[INFO] finished tweaking git repo https://github.com/Reza-Darius/porto
[INFO] tweaked toml for git repo https://github.com/Reza-Darius/porto written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Reza-Darius/porto on toolchain 656ccbe796ff98def9b555c118e1620c5389e3b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Reza-Darius/porto 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" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `Account`
[INFO] [stdout]  --> src/acme/order.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Account, AuthorizationStatus, ChallengeType, Identifier, NewOrder, OrderStatus, RetryPolicy,
[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: `PortoConfig`
[INFO] [stdout]   --> src/acme/mod.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     config::{PortoConfig, TlsConfig},
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ConnectionConfig` and `ConnectionService`
[INFO] [stdout]   --> src/services/setup.rs:20:39
[INFO] [stdout]    |
[INFO] [stdout] 20 |         upstream::{connection_table::{ConnectionConfig, ConnectionService}, hyper_client},
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing::debug`
[INFO] [stdout]   --> src/services/upstream/hyper_client.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tracing::debug;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Account`
[INFO] [stdout]  --> src/acme/order.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Account, AuthorizationStatus, ChallengeType, Identifier, NewOrder, OrderStatus, RetryPolicy,
[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: `PortoConfig`
[INFO] [stdout]   --> src/acme/mod.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     config::{PortoConfig, TlsConfig},
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ConnectionConfig` and `ConnectionService`
[INFO] [stdout]   --> src/services/setup.rs:20:39
[INFO] [stdout]    |
[INFO] [stdout] 20 |         upstream::{connection_table::{ConnectionConfig, ConnectionService}, hyper_client},
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing::debug`
[INFO] [stdout]   --> src/services/upstream/hyper_client.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tracing::debug;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_pem`
[INFO] [stdout]   --> src/acme/cert_store.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let key_pem = read_pem_file(path.join(KEY_FILENAME))?;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_pem`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/acme/helper.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     config: &TlsConfig,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/acme/mod.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let key = key_pem.parse_x509()?;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_pem`
[INFO] [stdout]   --> src/acme/cert_store.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let key_pem = read_pem_file(path.join(KEY_FILENAME))?;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_pem`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/acme/helper.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     config: &TlsConfig,
[INFO] [stdout]    |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/acme/mod.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let key = key_pem.parse_x509()?;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConnectionService` is never constructed
[INFO] [stdout]   --> src/services/upstream/connection_table.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct ConnectionService<B> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConnectionConfig` is never constructed
[INFO] [stdout]   --> src/services/upstream/connection_table.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct ConnectionConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/services/upstream/connection_table.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<B> ConnectionService<B> {
[INFO] [stdout]    | ---------------------------- associated function in this implementation
[INFO] [stdout] 60 |     pub fn new(config: ConnectionConfig) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `HttpClient` is never used
[INFO] [stdout]    --> src/services/upstream/connection_table.rs:111:6
[INFO] [stdout]     |
[INFO] [stdout] 111 | type HttpClient<B> = BoxCloneService<Request<B>, Response<Body>, BoxError>;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_http1_client` is never used
[INFO] [stdout]    --> src/services/upstream/connection_table.rs:113:4
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn new_http1_client<B>(addr: PeerAddr, pool: &ConnectionService<B>) -> HttpClient<B>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_http2_client` is never used
[INFO] [stdout]    --> src/services/upstream/connection_table.rs:204:4
[INFO] [stdout]     |
[INFO] [stdout] 204 | fn new_http2_client<B>(addr: PeerAddr, pool: &ConnectionService<B>) -> HttpClient<B>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `CON_ID` is never used
[INFO] [stdout]   --> src/services/upstream/http.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | static CON_ID: AtomicU16 = AtomicU16::new(0);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http1Sender` is never constructed
[INFO] [stdout]   --> src/services/upstream/http.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Http1Sender<B> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http1Connect` is never constructed
[INFO] [stdout]   --> src/services/upstream/http.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Http1Connect<S, B> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/services/upstream/http.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl<S, B> Http1Connect<S, B> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 79 |     pub fn new(max_connections: usize, inner: S) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http2Sender` is never constructed
[INFO] [stdout]    --> src/services/upstream/http.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub struct Http2Sender<B> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http2Connect` is never constructed
[INFO] [stdout]    --> src/services/upstream/http.rs:229:12
[INFO] [stdout]     |
[INFO] [stdout] 229 | pub struct Http2Connect<S, B> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/services/upstream/http.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<S, B> Http2Connect<S, B> {
[INFO] [stdout]     | ----------------------------- associated function in this implementation
[INFO] [stdout] 238 |     pub fn new(inner: S) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyElement` is never constructed
[INFO] [stdout]    --> src/utils/ringbuffer.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout] 186 | struct MyElement(String);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConnectionService` is never constructed
[INFO] [stdout]   --> src/services/upstream/connection_table.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct ConnectionService<B> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConnectionConfig` is never constructed
[INFO] [stdout]   --> src/services/upstream/connection_table.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct ConnectionConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/services/upstream/connection_table.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<B> ConnectionService<B> {
[INFO] [stdout]    | ---------------------------- associated function in this implementation
[INFO] [stdout] 60 |     pub fn new(config: ConnectionConfig) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `HttpClient` is never used
[INFO] [stdout]    --> src/services/upstream/connection_table.rs:111:6
[INFO] [stdout]     |
[INFO] [stdout] 111 | type HttpClient<B> = BoxCloneService<Request<B>, Response<Body>, BoxError>;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_http1_client` is never used
[INFO] [stdout]    --> src/services/upstream/connection_table.rs:113:4
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn new_http1_client<B>(addr: PeerAddr, pool: &ConnectionService<B>) -> HttpClient<B>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_http2_client` is never used
[INFO] [stdout]    --> src/services/upstream/connection_table.rs:204:4
[INFO] [stdout]     |
[INFO] [stdout] 204 | fn new_http2_client<B>(addr: PeerAddr, pool: &ConnectionService<B>) -> HttpClient<B>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `CON_ID` is never used
[INFO] [stdout]   --> src/services/upstream/http.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | static CON_ID: AtomicU16 = AtomicU16::new(0);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http1Sender` is never constructed
[INFO] [stdout]   --> src/services/upstream/http.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Http1Sender<B> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http1Connect` is never constructed
[INFO] [stdout]   --> src/services/upstream/http.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Http1Connect<S, B> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/services/upstream/http.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl<S, B> Http1Connect<S, B> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 79 |     pub fn new(max_connections: usize, inner: S) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http2Sender` is never constructed
[INFO] [stdout]    --> src/services/upstream/http.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub struct Http2Sender<B> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Http2Connect` is never constructed
[INFO] [stdout]    --> src/services/upstream/http.rs:229:12
[INFO] [stdout]     |
[INFO] [stdout] 229 | pub struct Http2Connect<S, B> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/services/upstream/http.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<S, B> Http2Connect<S, B> {
[INFO] [stdout]     | ----------------------------- associated function in this implementation
[INFO] [stdout] 238 |     pub fn new(inner: S) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/utils/ringbuffer.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         q.push(MyElement(String::from("hello")));
[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] 202 |         let _ = q.push(MyElement(String::from("hello")));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/utils/ringbuffer.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         q.push(MyElement(String::from("world")));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let _ = q.push(MyElement(String::from("world")));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/utils/ringbuffer.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         q.push(MyElement(String::from("hello")));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let _ = q.push(MyElement(String::from("hello")));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/utils/ringbuffer.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         q.push(MyElement(String::from("world")));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let _ = q.push(MyElement(String::from("world")));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/utils/ringbuffer.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |             q.push(MyElement(String::from("hello")));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 224 |             let _ = q.push(MyElement(String::from("hello")));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/utils/ringbuffer.rs:240:13
[INFO] [stdout]     |
[INFO] [stdout] 240 |             q.push(MyElement(String::from("hello")));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |             let _ = q.push(MyElement(String::from("hello")));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/utils/ringbuffer.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 264 |             q.push(MyElement(String::from("hello")));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 264 |             let _ = q.push(MyElement(String::from("hello")));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 35s
[INFO] running `Command { std: "docker" "inspect" "bef90164af0df548c9f87d71a6a2d6332082b43965361c64dbe90aac4a44015b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bef90164af0df548c9f87d71a6a2d6332082b43965361c64dbe90aac4a44015b", kill_on_drop: false }`
[INFO] [stdout] bef90164af0df548c9f87d71a6a2d6332082b43965361c64dbe90aac4a44015b
