[INFO] cloning repository https://github.com/welbymcroberts/routeros_exporter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/welbymcroberts/routeros_exporter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwelbymcroberts%2Frouteros_exporter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwelbymcroberts%2Frouteros_exporter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f7c59cdb3d921ed9c75b4faa7c19113a3a9c503
[INFO] building welbymcroberts/routeros_exporter against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwelbymcroberts%2Frouteros_exporter" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/welbymcroberts/routeros_exporter
[INFO] finished tweaking git repo https://github.com/welbymcroberts/routeros_exporter
[INFO] tweaked toml for git repo https://github.com/welbymcroberts/routeros_exporter written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/welbymcroberts/routeros_exporter on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/welbymcroberts/routeros_exporter 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-tungstenite v0.17.2
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[INFO] [stderr]   Downloaded getrandom v0.2.4
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[INFO] [stderr]   Downloaded headers v0.3.6
[INFO] [stderr]   Downloaded tokio-util v0.7.4
[INFO] [stderr]   Downloaded warp v0.3.3
[INFO] [stderr]   Downloaded tracing v0.1.30
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6326f5ef5eedd7c5f30e28ff01933779bc45ed6491523ef550c577a4de2a741d
[INFO] running `Command { std: "docker" "start" "-a" "6326f5ef5eedd7c5f30e28ff01933779bc45ed6491523ef550c577a4de2a741d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6326f5ef5eedd7c5f30e28ff01933779bc45ed6491523ef550c577a4de2a741d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6326f5ef5eedd7c5f30e28ff01933779bc45ed6491523ef550c577a4de2a741d", kill_on_drop: false }`
[INFO] [stdout] 6326f5ef5eedd7c5f30e28ff01933779bc45ed6491523ef550c577a4de2a741d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e574cff3cafee1a1c6bd6f295a8c61359a18cc5b1c2b5220ff60c2ef58dc22e7
[INFO] running `Command { std: "docker" "start" "-a" "e574cff3cafee1a1c6bd6f295a8c61359a18cc5b1c2b5220ff60c2ef58dc22e7", kill_on_drop: false }`
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[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling futures-sink v0.3.19
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[INFO] [stderr]    Compiling futures-task v0.3.19
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[INFO] [stderr]    Compiling encoding_rs v0.8.30
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[INFO] [stderr]    Compiling headers v0.3.6
[INFO] [stderr]    Compiling rustls-pemfile v0.2.1
[INFO] [stderr]    Compiling multipart v0.18.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling ipnet v2.3.1
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[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling tungstenite v0.17.3
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling pin-project v1.0.10
[INFO] [stderr]    Compiling futures-executor v0.3.19
[INFO] [stderr]    Compiling futures v0.3.19
[INFO] [stderr]    Compiling tokio-util v0.7.4
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling tokio-tungstenite v0.17.2
[INFO] [stderr]    Compiling tokio-stream v0.1.8
[INFO] [stderr]    Compiling h2 v0.3.17
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling secrecy v0.8.0
[INFO] [stderr]    Compiling serde-aux v3.0.1
[INFO] [stderr]    Compiling config v0.11.0
[INFO] [stderr]    Compiling hyper v0.14.16
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling warp v0.3.3
[INFO] [stderr]    Compiling reqwest v0.11.9
[INFO] [stderr]    Compiling routeros_exporter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/helpers.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[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: `std::error::Error`
[INFO] [stdout]  --> src/collectors/interfaces.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/interfaces_monitor.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/interfaces_poe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_filter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_mangle.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_nat.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_raw.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/collectors/system_health.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/system_health.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `status` is never read
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 let mut status: u8 = 255;
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/system_health.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/system_health.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]   --> src/collectors/system_health.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]   --> src/collectors/system_health.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let mut value = "";
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/system_health.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/system_health.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                     ----^^^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::hash::Hash;
[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: `Collectors`
[INFO] [stdout]   --> src/main.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 | use routeros_exporter::configuration::{Collectors, get_configuration};
[INFO] [stdout]    |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 49s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "e574cff3cafee1a1c6bd6f295a8c61359a18cc5b1c2b5220ff60c2ef58dc22e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e574cff3cafee1a1c6bd6f295a8c61359a18cc5b1c2b5220ff60c2ef58dc22e7", kill_on_drop: false }`
[INFO] [stdout] e574cff3cafee1a1c6bd6f295a8c61359a18cc5b1c2b5220ff60c2ef58dc22e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de9c6a72903521fc25245124514e1b0250cdc3a660ce142d80ccf431f9048776
[INFO] running `Command { std: "docker" "start" "-a" "de9c6a72903521fc25245124514e1b0250cdc3a660ce142d80ccf431f9048776", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/helpers.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[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: `std::error::Error`
[INFO] [stdout]  --> src/collectors/interfaces.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/interfaces_monitor.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/interfaces_poe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_filter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_mangle.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_nat.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_raw.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/collectors/system_health.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/system_health.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `status` is never read
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 let mut status: u8 = 255;
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/system_health.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/system_health.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]   --> src/collectors/system_health.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]   --> src/collectors/system_health.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let mut value = "";
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/system_health.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/system_health.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                     ----^^^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling routeros_exporter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::hash::Hash;
[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: `Collectors`
[INFO] [stdout]   --> src/main.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 | use routeros_exporter::configuration::{Collectors, get_configuration};
[INFO] [stdout]    |                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/helpers.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[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: `std::error::Error`
[INFO] [stdout]  --> src/collectors/interfaces.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/interfaces_monitor.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/interfaces_poe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_filter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_mangle.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_nat.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/ip_firewall_raw.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/collectors/system_health.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/collectors/system_health.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/interfaces.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/interfaces_monitor.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `status` is never read
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 let mut status: u8 = 255;
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/interfaces_poe.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_filter.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_mangle.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_nat.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `labels` is never read
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/ip_firewall_raw.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/collectors/system_health.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errored`
[INFO] [stdout]   --> src/collectors/system_health.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_errored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]   --> src/collectors/system_health.rs:41:41
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]   --> src/collectors/system_health.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let mut value = "";
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/system_health.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                        ----^^^^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collectors/system_health.rs:41:37
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (now, mut ret, mut errored, mut labels) = collector_preamble();
[INFO] [stdout]    |                                     ----^^^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.10s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "de9c6a72903521fc25245124514e1b0250cdc3a660ce142d80ccf431f9048776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de9c6a72903521fc25245124514e1b0250cdc3a660ce142d80ccf431f9048776", kill_on_drop: false }`
[INFO] [stdout] de9c6a72903521fc25245124514e1b0250cdc3a660ce142d80ccf431f9048776
