[INFO] fetching crate keyboard-layouts 0.3.0...
[INFO] checking keyboard-layouts-0.3.0 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate keyboard-layouts 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate keyboard-layouts 0.3.0 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", 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-0/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" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 62655cdb9fb3271332fd233347e3a5f17c8ade2e6c66787d8f2d9be1f94e2440
[INFO] running `Command { std: "docker" "start" "-a" "62655cdb9fb3271332fd233347e3a5f17c8ade2e6c66787d8f2d9be1f94e2440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62655cdb9fb3271332fd233347e3a5f17c8ade2e6c66787d8f2d9be1f94e2440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62655cdb9fb3271332fd233347e3a5f17c8ade2e6c66787d8f2d9be1f94e2440", kill_on_drop: false }`
[INFO] [stdout] 62655cdb9fb3271332fd233347e3a5f17c8ade2e6c66787d8f2d9be1f94e2440
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2abd7dc45c932c45b0b72393d7910c40a0261ae4c88a7b8f8d5fe76a5b7a1078
[INFO] running `Command { std: "docker" "start" "-a" "2abd7dc45c932c45b0b72393d7910c40a0261ae4c88a7b8f8d5fe76a5b7a1078", kill_on_drop: false }`
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[INFO] [stderr]     Checking tokio-core v0.1.17
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[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking keyboard-layouts v0.3.0 (/opt/rustwide/workdir)
[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:158:9
[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 1m 27s
[INFO] running `Command { std: "docker" "inspect" "2abd7dc45c932c45b0b72393d7910c40a0261ae4c88a7b8f8d5fe76a5b7a1078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2abd7dc45c932c45b0b72393d7910c40a0261ae4c88a7b8f8d5fe76a5b7a1078", kill_on_drop: false }`
[INFO] [stdout] 2abd7dc45c932c45b0b72393d7910c40a0261ae4c88a7b8f8d5fe76a5b7a1078