[INFO] fetching crate rainbow-hat-rs 0.2.1...
[INFO] checking rainbow-hat-rs-0.2.1 against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] extracting crate rainbow-hat-rs 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rainbow-hat-rs 0.2.1
[INFO] finished tweaking crates.io crate rainbow-hat-rs 0.2.1
[INFO] tweaked toml for crates.io crate rainbow-hat-rs 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rainbow-hat-rs 0.2.1 on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rainbow-hat-rs 0.2.1 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | homepage = "https://github.com/yannart/rainbow-hat-rs/"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 | repository = "https://github.com/yannart/rainbow-hat-rs/"
[INFO] [stderr]    |              --------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `rainbow-hat-rs` (manifest) generated 2 warnings
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf v0.9.0
[INFO] [stderr]   Downloaded palette v0.6.0
[INFO] [stderr]   Downloaded phf_shared v0.9.0
[INFO] [stderr]   Downloaded phf_generator v0.9.0
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.19
[INFO] [stderr]   Downloaded palette_derive v0.6.0
[INFO] [stderr]   Downloaded siphasher v0.3.3
[INFO] [stderr]   Downloaded phf_macros v0.9.0
[INFO] [stderr]   Downloaded approx v0.5.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.8
[INFO] [stderr]   Downloaded serde v1.0.126
[INFO] [stderr]   Downloaded rppal v0.12.0
[INFO] [stderr]   Downloaded syn v1.0.38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 71d1be104d1288b2e6db25d4fb310d713184a38a2a562c0da8430c0312de9f86
[INFO] running `Command { std: "docker" "start" "71d1be104d1288b2e6db25d4fb310d713184a38a2a562c0da8430c0312de9f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71d1be104d1288b2e6db25d4fb310d713184a38a2a562c0da8430c0312de9f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "71d1be104d1288b2e6db25d4fb310d713184a38a2a562c0da8430c0312de9f86" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71d1be104d1288b2e6db25d4fb310d713184a38a2a562c0da8430c0312de9f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "71d1be104d1288b2e6db25d4fb310d713184a38a2a562c0da8430c0312de9f86" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | homepage = "https://github.com/yannart/rainbow-hat-rs/"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 | repository = "https://github.com/yannart/rainbow-hat-rs/"
[INFO] [stderr]    |              --------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `rainbow-hat-rs` (manifest) generated 2 warnings
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling palette v0.6.0
[INFO] [stderr]     Checking phf_shared v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]     Checking approx v0.5.0
[INFO] [stderr]     Checking rppal v0.12.0
[INFO] [stderr]    Compiling phf_generator v0.9.0
[INFO] [stderr]     Checking rainbow-hat-rs v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `brightness` is never read
[INFO] [stdout]   --> src/apa102.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct APA102 {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 42 |     brightness: u8,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `APA102` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling phf_macros v0.9.0
[INFO] [stderr]    Compiling find-crate v0.6.3
[INFO] [stderr]    Compiling palette_derive v0.6.0
[INFO] [stderr]     Checking phf v0.9.0
[INFO] [stdout] warning: field `brightness` is never read
[INFO] [stdout]   --> src/apa102.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct APA102 {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 42 |     brightness: u8,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `APA102` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.72s
[INFO] running `Command { std: "docker" "inspect" "71d1be104d1288b2e6db25d4fb310d713184a38a2a562c0da8430c0312de9f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d1be104d1288b2e6db25d4fb310d713184a38a2a562c0da8430c0312de9f86", kill_on_drop: false }`
[INFO] [stdout] 71d1be104d1288b2e6db25d4fb310d713184a38a2a562c0da8430c0312de9f86
