[INFO] fetching crate keyboard-layouts 0.3.0...
[INFO] checking keyboard-layouts-0.3.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate keyboard-layouts 0.3.0 into /workspace/builds/worker-111/source
[INFO] validating manifest of crates.io crate keyboard-layouts 0.3.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate keyboard-layouts 0.3.0
[INFO] finished tweaking crates.io crate keyboard-layouts 0.3.0
[INFO] tweaked toml for crates.io crate keyboard-layouts 0.3.0 written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate crates.io crate keyboard-layouts 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 334e11f049df65a42311e663cec374d66d55a0e0a4bc830a2a5a20df8509750a
[INFO] running `Command { std: "docker" "start" "-a" "334e11f049df65a42311e663cec374d66d55a0e0a4bc830a2a5a20df8509750a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "334e11f049df65a42311e663cec374d66d55a0e0a4bc830a2a5a20df8509750a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "334e11f049df65a42311e663cec374d66d55a0e0a4bc830a2a5a20df8509750a", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a509f641a8d4a64f5266d4c6a6d958bb3bd738ebdf0ae94389ec68c4a84d5ab
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[INFO] [stdout] warning: constant is never used: `UNICODE_DIGIT_OFFSET`
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const UNICODE_DIGIT_OFFSET: usize = 48; // 0
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling uhid-sys v1.0.0
[INFO] [stderr]     Checking tokio-linux-uhid v0.3.2
[INFO] [stdout] warning: unused imports: `Read`, `Write`
[INFO] [stdout]  --> tests/all_layouts.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TcpListener`, `TcpStream`
[INFO] [stdout]  --> tests/all_layouts.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `UNICODE_DIGIT_OFFSET`
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const UNICODE_DIGIT_OFFSET: usize = 48; // 0
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uhid_device`
[INFO] [stdout]    --> tests/all_layouts.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |     let mut uhid_device = UHIDDevice::create(&handle, create_params, None).unwrap();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_uhid_device`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/all_layouts.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |     let mut uhid_device = UHIDDevice::create(&handle, create_params, None).unwrap();
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.57s
[INFO] running `Command { std: "docker" "inspect" "6a509f641a8d4a64f5266d4c6a6d958bb3bd738ebdf0ae94389ec68c4a84d5ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a509f641a8d4a64f5266d4c6a6d958bb3bd738ebdf0ae94389ec68c4a84d5ab", kill_on_drop: false }`
[INFO] [stdout] 6a509f641a8d4a64f5266d4c6a6d958bb3bd738ebdf0ae94389ec68c4a84d5ab
