[INFO] cloning repository https://github.com/aheart/hearth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aheart/hearth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faheart%2Fhearth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faheart%2Fhearth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d07e2fee63af5912c679f789eef2ec418406ff40
[INFO] checking aheart/hearth against 018018e881e2db0956f229dbb543e21f058d1ce7 for pr-162597
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faheart%2Fhearth" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aheart/hearth
[INFO] finished tweaking git repo https://github.com/aheart/hearth
[INFO] tweaked toml for git repo https://github.com/aheart/hearth written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aheart/hearth on toolchain 018018e881e2db0956f229dbb543e21f058d1ce7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+018018e881e2db0956f229dbb543e21f058d1ce7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aheart/hearth 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" "+018018e881e2db0956f229dbb543e21f058d1ce7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ssh2 v0.9.6
[INFO] [stderr]   Downloaded zmij v1.0.2
[INFO] [stderr]   Downloaded actix-web-actors v4.3.1+deprecated
[INFO] [stderr]   Downloaded prettyplease v0.2.34
[INFO] [stderr]   Downloaded actix-web v4.14.1
[INFO] [stderr]   Downloaded libssh2-sys v0.3.2
[INFO] [stderr]   Downloaded actix_derive v0.6.2
[INFO] [stderr]   Downloaded actix-server v2.7.0
[INFO] [stderr]   Downloaded actix v0.13.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 640edffd085e1bbce6cc6dfc616e2ea6c678dba532ec35500819e6608c6ed337
[INFO] running `Command { std: "docker" "start" "640edffd085e1bbce6cc6dfc616e2ea6c678dba532ec35500819e6608c6ed337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "640edffd085e1bbce6cc6dfc616e2ea6c678dba532ec35500819e6608c6ed337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "640edffd085e1bbce6cc6dfc616e2ea6c678dba532ec35500819e6608c6ed337" "/opt/rustwide/cargo-home/bin/cargo" "+018018e881e2db0956f229dbb543e21f058d1ce7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "640edffd085e1bbce6cc6dfc616e2ea6c678dba532ec35500819e6608c6ed337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "640edffd085e1bbce6cc6dfc616e2ea6c678dba532ec35500819e6608c6ed337" "/opt/rustwide/cargo-home/bin/cargo" "+018018e881e2db0956f229dbb543e21f058d1ce7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]     Checking futures-channel v0.3.34
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling syn v3.0.2
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]     Checking hybrid-array v0.4.10
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]    Compiling getrandom v0.4.1
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]    Compiling num-conv v0.2.0
[INFO] [stderr]    Compiling zmij v1.0.2
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling time-macros v0.2.27
[INFO] [stderr]     Checking miniz_oxide v0.8.4
[INFO] [stderr]     Checking actix-service v2.0.2
[INFO] [stderr]     Checking brotli-decompressor v5.0.0
[INFO] [stderr]     Checking chacha20 v0.10.0
[INFO] [stderr]     Checking bytestring v1.4.0
[INFO] [stderr]     Checking local-channel v0.1.5
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]     Checking foldhash v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.151
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]     Checking flate2 v1.0.35
[INFO] [stderr]     Checking impl-more v0.3.1
[INFO] [stderr]    Compiling v_htmlescape v0.15.8
[INFO] [stderr]     Checking winnow v1.0.0
[INFO] [stderr]     Checking anstream v1.0.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking crypto-common v0.2.1
[INFO] [stderr]     Checking block-buffer v0.12.0
[INFO] [stderr]     Checking http-range v0.1.5
[INFO] [stderr]     Checking jiff v0.2.23
[INFO] [stderr]     Checking toml_parser v1.1.3+spec-1.1.0
[INFO] [stderr]     Checking brotli v8.0.1
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]     Checking time v0.3.47
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking socket2 v0.6.1
[INFO] [stderr]     Checking rand v0.10.2
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]    Compiling cc v1.2.14
[INFO] [stderr]     Checking toml v1.1.4+spec-1.1.0
[INFO] [stderr]     Checking digest v0.11.2
[INFO] [stderr]     Checking sha1 v0.11.0
[INFO] [stderr]     Checking regex v1.12.4
[INFO] [stderr]     Checking env_filter v2.0.0
[INFO] [stderr]     Checking cookie v0.16.2
[INFO] [stderr]    Compiling zstd-sys v2.0.13+zstd.1.5.6
[INFO] [stderr]    Compiling libz-sys v1.1.21
[INFO] [stderr]    Compiling openssl-sys v0.9.106
[INFO] [stderr]    Compiling libssh2-sys v0.3.2
[INFO] [stderr]    Compiling actix-router v0.5.4
[INFO] [stderr]     Checking env_logger v0.11.11
[INFO] [stderr]    Compiling futures-macro v0.3.34
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]     Checking futures-util v0.3.34
[INFO] [stderr]     Checking tokio-util v0.7.13
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]     Checking ssh2 v0.9.6
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling actix-macros v0.2.4
[INFO] [stderr]    Compiling derive_more-impl v2.1.1
[INFO] [stderr]    Compiling actix-web-codegen v4.3.0
[INFO] [stderr]    Compiling actix_derive v0.6.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.5
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]     Checking actix-rt v2.11.0
[INFO] [stderr]     Checking zerofrom v0.1.5
[INFO] [stderr]     Checking yoke v0.7.5
[INFO] [stderr]     Checking actix-codec v0.5.2
[INFO] [stderr]     Checking zerovec v0.10.4
[INFO] [stderr]    Compiling zstd-safe v7.2.1
[INFO] [stderr]     Checking zstd v0.13.2
[INFO] [stderr]     Checking h2 v0.3.27
[INFO] [stderr]     Checking actix-server v2.7.0
[INFO] [stderr]     Checking futures-executor v0.3.34
[INFO] [stderr]     Checking actix v0.13.5
[INFO] [stderr]     Checking tinystr v0.7.6
[INFO] [stderr]     Checking icu_collections v1.5.0
[INFO] [stderr]     Checking futures v0.3.34
[INFO] [stderr]     Checking icu_locid v1.5.0
[INFO] [stderr]     Checking derive_more v2.1.1
[INFO] [stderr]     Checking icu_provider v1.5.0
[INFO] [stderr]     Checking icu_locid_transform v1.5.0
[INFO] [stderr]     Checking icu_properties v1.5.1
[INFO] [stderr]     Checking icu_normalizer v1.5.0
[INFO] [stderr]     Checking idna_adapter v1.2.0
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking actix-http v3.13.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking actix-web v4.14.1
[INFO] [stderr]     Checking actix-web-actors v4.3.1+deprecated
[INFO] [stderr]     Checking actix-files v0.6.10
[INFO] [stderr]     Checking hearth v0.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:50:68
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[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] 50 -     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 50 +     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:67:65
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                                 ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 67 +     fn exec(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:77:46
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                              ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 77 +     fn init(&mut self) -> Result<(), Box<dyn ::std::error::Error>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:91:58
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                          ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 91 -     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 91 +     fn try_connect(&mut self) -> Result<Session, Box<dyn ::std::error::Error>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:50:68
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[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] 50 -     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 50 +     pub fn run(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ssh.rs:130:54
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]     |                                                      ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 130 -     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 130 +     fn channel(&mut self) -> Result<Channel, Box<dyn ::std::error::Error>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:67:65
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                                 ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     fn exec(&mut self, command: &str) -> Result<String, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 67 +     fn exec(&mut self, command: &str) -> Result<String, Box<dyn ::std::error::Error>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:77:46
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                              ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -     fn init(&mut self) -> Result<(), Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 77 +     fn init(&mut self) -> Result<(), Box<dyn ::std::error::Error>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/ssh.rs:91:58
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]    |                                                          ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 91 -     fn try_connect(&mut self) -> Result<Session, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 91 +     fn try_connect(&mut self) -> Result<Session, Box<dyn ::std::error::Error>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/ssh.rs:130:54
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stdout]     |                                                      ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 130 -     fn channel(&mut self) -> Result<Channel, Box<dyn (::std::error::Error)>> {
[INFO] [stdout] 130 +     fn channel(&mut self) -> Result<Channel, Box<dyn ::std::error::Error>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `empty_metrics` is never used
[INFO] [stdout]   --> src/metrics/mod.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub trait MetricPlugin: Send + 'static {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn empty_metrics(&self) -> Metrics;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/metrics/disk.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct DiskStats {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 58 |     reads_completed_successfully: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 59 |     reads_merged: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 60 |     sectors_read: u64,
[INFO] [stdout] 61 |     time_spend_reading: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 62 |     writes_completed: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 63 |     writes_merged: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 64 |     sectors_written: u64,
[INFO] [stdout] 65 |     time_spent_writing: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 66 |     ios_currently_in_progress: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 67 |     time_spent_doing_ios: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 68 |     weighted_time_spent_doing_ios: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DiskStats` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Everyone` is never constructed
[INFO] [stdout]   --> src/ws/server.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Receiver {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Everyone,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Receiver` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `empty_metrics` is never used
[INFO] [stdout]   --> src/metrics/mod.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub trait MetricPlugin: Send + 'static {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn empty_metrics(&self) -> Metrics;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/metrics/disk.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct DiskStats {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 58 |     reads_completed_successfully: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 59 |     reads_merged: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 60 |     sectors_read: u64,
[INFO] [stdout] 61 |     time_spend_reading: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 62 |     writes_completed: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 63 |     writes_merged: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 64 |     sectors_written: u64,
[INFO] [stdout] 65 |     time_spent_writing: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 66 |     ios_currently_in_progress: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 67 |     time_spent_doing_ios: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 68 |     weighted_time_spent_doing_ios: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DiskStats` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Everyone` is never constructed
[INFO] [stdout]   --> src/ws/server.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Receiver {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Everyone,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Receiver` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]  --> Cargo.toml:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | futures = "0.3"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: `hearth` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "640edffd085e1bbce6cc6dfc616e2ea6c678dba532ec35500819e6608c6ed337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "640edffd085e1bbce6cc6dfc616e2ea6c678dba532ec35500819e6608c6ed337", kill_on_drop: false }`
[INFO] [stdout] 640edffd085e1bbce6cc6dfc616e2ea6c678dba532ec35500819e6608c6ed337
