[INFO] fetching crate slight 0.1.0...
[INFO] checking slight-0.1.0 against 1.95.0 for pr-155915
[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 argh_shared v0.1.10
[INFO] [stderr]   Downloaded argh v0.1.10
[INFO] [stderr]   Downloaded argh_derive v0.1.10
[INFO] [stderr]   Downloaded rustversion v1.0.11
[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] e2a3f6cc2b285c2b7de97589738003156af82e0e81ac55fa1afb2f100e419aef
[INFO] running `Command { std: "docker" "start" "-a" "e2a3f6cc2b285c2b7de97589738003156af82e0e81ac55fa1afb2f100e419aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2a3f6cc2b285c2b7de97589738003156af82e0e81ac55fa1afb2f100e419aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2a3f6cc2b285c2b7de97589738003156af82e0e81ac55fa1afb2f100e419aef", kill_on_drop: false }`
[INFO] [stdout] e2a3f6cc2b285c2b7de97589738003156af82e0e81ac55fa1afb2f100e419aef
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e58292b44d90ae54a54e3410ea549bf8d8b79bd042ecb7f8055a9ac09ed8c66c
[INFO] running `Command { std: "docker" "start" "-a" "e58292b44d90ae54a54e3410ea549bf8d8b79bd042ecb7f8055a9ac09ed8c66c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling argh_shared v0.1.10
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling argh_derive v0.1.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking thiserror v1.0.38
[INFO] [stderr]     Checking argh v0.1.10
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking 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 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] [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 6.78s
[INFO] running `Command { std: "docker" "inspect" "e58292b44d90ae54a54e3410ea549bf8d8b79bd042ecb7f8055a9ac09ed8c66c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e58292b44d90ae54a54e3410ea549bf8d8b79bd042ecb7f8055a9ac09ed8c66c", kill_on_drop: false }`
[INFO] [stdout] e58292b44d90ae54a54e3410ea549bf8d8b79bd042ecb7f8055a9ac09ed8c66c
