[INFO] fetching crate lcd1602_gpio 0.1.0...
[INFO] checking lcd1602_gpio-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate lcd1602_gpio 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate lcd1602_gpio 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate lcd1602_gpio 0.1.0
[INFO] tweaked toml for crates.io crate lcd1602_gpio 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lcd1602_gpio 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate lcd1602_gpio 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7ed87ce549bb0ee4930d86f5027ea59f3a265cab9e4ed43a0374bf4a2ec7684
[INFO] running `Command { std: "docker" "start" "-a" "d7ed87ce549bb0ee4930d86f5027ea59f3a265cab9e4ed43a0374bf4a2ec7684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7ed87ce549bb0ee4930d86f5027ea59f3a265cab9e4ed43a0374bf4a2ec7684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ed87ce549bb0ee4930d86f5027ea59f3a265cab9e4ed43a0374bf4a2ec7684", kill_on_drop: false }`
[INFO] [stdout] d7ed87ce549bb0ee4930d86f5027ea59f3a265cab9e4ed43a0374bf4a2ec7684
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6317f5041534c3d593980a59fb2652ed20cc1d068182da5bb332fccc052b197a
[INFO] running `Command { std: "docker" "start" "-a" "6317f5041534c3d593980a59fb2652ed20cc1d068182da5bb332fccc052b197a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking rppal v0.16.0
[INFO] [stderr]     Checking lcd1602_gpio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, and `mpsc`
[INFO] [stdout]  --> src/lib.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{mpsc, Arc, Mutex};
[INFO] [stdout]   |                 ^^^^  ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, and `mpsc`
[INFO] [stdout]  --> src/lib.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{mpsc, Arc, Mutex};
[INFO] [stdout]   |                 ^^^^  ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "6317f5041534c3d593980a59fb2652ed20cc1d068182da5bb332fccc052b197a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6317f5041534c3d593980a59fb2652ed20cc1d068182da5bb332fccc052b197a", kill_on_drop: false }`
[INFO] [stdout] 6317f5041534c3d593980a59fb2652ed20cc1d068182da5bb332fccc052b197a