[INFO] fetching crate slight 0.1.0...
[INFO] testing slight-0.1.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate slight 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate slight 0.1.0
[INFO] finished tweaking crates.io crate slight 0.1.0
[INFO] tweaked toml for crates.io crate slight 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slight 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slight 0.1.0 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.38
[INFO] [stderr]   Downloaded strum v0.24.1
[INFO] [stderr]   Downloaded strum_macros v0.24.3
[INFO] [stderr]   Downloaded rustversion v1.0.11
[INFO] [stderr]   Downloaded thiserror-impl v1.0.38
[INFO] [stderr]   Downloaded unicode-ident v1.0.6
[INFO] [stderr]   Downloaded argh_derive v0.1.10
[INFO] [stderr]   Downloaded semver v1.0.16
[INFO] [stderr]   Downloaded proc-macro2 v1.0.50
[INFO] [stderr]   Downloaded argh_shared v0.1.10
[INFO] [stderr]   Downloaded argh v0.1.10
[INFO] [stderr]   Downloaded once_cell v1.17.0
[INFO] [stderr]   Downloaded syn v1.0.107
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28d35289a0c984cd16561bda83b7c399277eccda525948efddefbb42ff7140c2
[INFO] running `Command { std: "docker" "start" "-a" "28d35289a0c984cd16561bda83b7c399277eccda525948efddefbb42ff7140c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28d35289a0c984cd16561bda83b7c399277eccda525948efddefbb42ff7140c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28d35289a0c984cd16561bda83b7c399277eccda525948efddefbb42ff7140c2", kill_on_drop: false }`
[INFO] [stdout] 28d35289a0c984cd16561bda83b7c399277eccda525948efddefbb42ff7140c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 304ccc2d078604f9f22d6e7d6e88f99ec4e4b743026c9640b01273faab391378
[INFO] running `Command { std: "docker" "start" "-a" "304ccc2d078604f9f22d6e7d6e88f99ec4e4b743026c9640b01273faab391378", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]    Compiling argh_shared v0.1.10
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling argh_derive v0.1.10
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling argh v0.1.10
[INFO] [stderr]    Compiling strum v0.24.1
[INFO] [stderr]    Compiling slight v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BacklightDevice` and `Backlight`
[INFO] [stdout]   --> src/main.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::device::{Backlight, BacklightDevice, Brightness, LedDevice};
[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 imports: `CapabilityCheckError` and `Capability`
[INFO] [stdout]   --> src/main.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::discovery::{Capability, CapabilityCheckError, DeviceDetail};
[INFO] [stdout]    |                        ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verbose`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let verbose = args.verbose;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbose`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FAIL_R_ACTUAL_BRIGHTNESS` is never used
[INFO] [stdout]   --> src/main.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const FAIL_R_ACTUAL_BRIGHTNESS: &str = "failed to read actual_brightness";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PowerState` is never used
[INFO] [stdout]   --> src/device.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum PowerState {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DeviceType` is never used
[INFO] [stdout]   --> src/device.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum DeviceType {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Backlight` is never used
[INFO] [stdout]   --> src/device.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub trait Backlight: Brightness {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BacklightDevice` is never constructed
[INFO] [stdout]   --> src/device.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct BacklightDevice {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/device.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl BacklightDevice {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 83 |     pub fn new(path: PathBuf) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `capability` is never read
[INFO] [stdout]    --> src/discovery.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct DeviceDetail {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub capability: Capability,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DeviceDetail` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.90s
[INFO] running `Command { std: "docker" "inspect" "304ccc2d078604f9f22d6e7d6e88f99ec4e4b743026c9640b01273faab391378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304ccc2d078604f9f22d6e7d6e88f99ec4e4b743026c9640b01273faab391378", kill_on_drop: false }`
[INFO] [stdout] 304ccc2d078604f9f22d6e7d6e88f99ec4e4b743026c9640b01273faab391378
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85d1e941b82b562daf2d2b9e710e44079c2b300c6f8106ee9fd9bc0141e3cdc3
[INFO] running `Command { std: "docker" "start" "-a" "85d1e941b82b562daf2d2b9e710e44079c2b300c6f8106ee9fd9bc0141e3cdc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling slight v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BacklightDevice` and `Backlight`
[INFO] [stdout]   --> src/main.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::device::{Backlight, BacklightDevice, Brightness, LedDevice};
[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 imports: `CapabilityCheckError` and `Capability`
[INFO] [stdout]   --> src/main.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::discovery::{Capability, CapabilityCheckError, DeviceDetail};
[INFO] [stdout]    |                        ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verbose`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let verbose = args.verbose;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbose`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FAIL_R_ACTUAL_BRIGHTNESS` is never used
[INFO] [stdout]   --> src/main.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const FAIL_R_ACTUAL_BRIGHTNESS: &str = "failed to read actual_brightness";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PowerState` is never used
[INFO] [stdout]   --> src/device.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum PowerState {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DeviceType` is never used
[INFO] [stdout]   --> src/device.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum DeviceType {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Backlight` is never used
[INFO] [stdout]   --> src/device.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub trait Backlight: Brightness {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BacklightDevice` is never constructed
[INFO] [stdout]   --> src/device.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct BacklightDevice {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/device.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl BacklightDevice {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 83 |     pub fn new(path: PathBuf) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `capability` is never read
[INFO] [stdout]    --> src/discovery.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct DeviceDetail {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub capability: Capability,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DeviceDetail` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "85d1e941b82b562daf2d2b9e710e44079c2b300c6f8106ee9fd9bc0141e3cdc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85d1e941b82b562daf2d2b9e710e44079c2b300c6f8106ee9fd9bc0141e3cdc3", kill_on_drop: false }`
[INFO] [stdout] 85d1e941b82b562daf2d2b9e710e44079c2b300c6f8106ee9fd9bc0141e3cdc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3ed451a848a5dfab07c8ab6e7be2d0a08b308f6554eba39742f77a4210b3c1a4
[INFO] running `Command { std: "docker" "start" "-a" "3ed451a848a5dfab07c8ab6e7be2d0a08b308f6554eba39742f77a4210b3c1a4", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `BacklightDevice` and `Backlight`
[INFO] [stderr]   --> src/main.rs:11:21
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::device::{Backlight, BacklightDevice, Brightness, LedDevice};
[INFO] [stderr]    |                     ^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CapabilityCheckError` and `Capability`
[INFO] [stderr]   --> src/main.rs:12:24
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::discovery::{Capability, CapabilityCheckError, DeviceDetail};
[INFO] [stderr]    |                        ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `verbose`
[INFO] [stderr]   --> src/main.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let verbose = args.verbose;
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbose`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `FAIL_R_ACTUAL_BRIGHTNESS` is never used
[INFO] [stderr]   --> src/main.rs:18:7
[INFO] [stderr]    |
[INFO] [stderr] 18 | const FAIL_R_ACTUAL_BRIGHTNESS: &str = "failed to read actual_brightness";
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `PowerState` is never used
[INFO] [stderr]   --> src/device.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub enum PowerState {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `DeviceType` is never used
[INFO] [stderr]   --> src/device.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub enum DeviceType {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Backlight` is never used
[INFO] [stderr]   --> src/device.rs:48:11
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub trait Backlight: Brightness {
[INFO] [stderr]    |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BacklightDevice` is never constructed
[INFO] [stderr]   --> src/device.rs:63:12
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub struct BacklightDevice {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/device.rs:83:12
[INFO] [stderr]    |
[INFO] [stderr] 82 | impl BacklightDevice {
[INFO] [stderr]    | -------------------- associated function in this implementation
[INFO] [stderr] 83 |     pub fn new(path: PathBuf) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `capability` is never read
[INFO] [stderr]    --> src/discovery.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub struct DeviceDetail {
[INFO] [stderr]     |            ------------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 115 |     pub capability: Capability,
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `DeviceDetail` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `slight` (bin "slight" test) generated 10 warnings (run `cargo fix --bin "slight" -p slight --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/slight-6652af12cc57d6a7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3ed451a848a5dfab07c8ab6e7be2d0a08b308f6554eba39742f77a4210b3c1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ed451a848a5dfab07c8ab6e7be2d0a08b308f6554eba39742f77a4210b3c1a4", kill_on_drop: false }`
[INFO] [stdout] 3ed451a848a5dfab07c8ab6e7be2d0a08b308f6554eba39742f77a4210b3c1a4
