[INFO] fetching crate nuki 0.2.4...
[INFO] checking nuki-0.2.4 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate nuki 0.2.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nuki 0.2.4 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nuki 0.2.4
[INFO] finished tweaking crates.io crate nuki 0.2.4
[INFO] tweaked toml for crates.io crate nuki 0.2.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded input-device v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c251122ddd172af820195c63c692fc2cf66e02eb7674908bd6cd9522c48dbb8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c251122ddd172af820195c63c692fc2cf66e02eb7674908bd6cd9522c48dbb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c251122ddd172af820195c63c692fc2cf66e02eb7674908bd6cd9522c48dbb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c251122ddd172af820195c63c692fc2cf66e02eb7674908bd6cd9522c48dbb8", kill_on_drop: false }`
[INFO] [stdout] 1c251122ddd172af820195c63c692fc2cf66e02eb7674908bd6cd9522c48dbb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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] f826c8a71d6564b9eaa4499a63ddfe3e46b2cfe32373e0f8b7819bf7a24fa821
[INFO] running `Command { std: "docker" "start" "-a" "f826c8a71d6564b9eaa4499a63ddfe3e46b2cfe32373e0f8b7819bf7a24fa821", kill_on_drop: false }`
[INFO] [stderr]    Compiling nuki-sys v4.3.4
[INFO] [stderr]     Checking nuki v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Mutex`
[INFO] [stdout]     --> src/property_sheet.rs:2186:21
[INFO] [stdout]      |
[INFO] [stdout] 2186 |     use std::sync::{Mutex, RwLock};
[INFO] [stdout]      |                     ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_uid`
[INFO] [stdout]     --> src/lib.rs:8235:4
[INFO] [stdout]      |
[INFO] [stdout] 8235 | fn make_uid() -> usize {
[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: associated function is never used: `base_mut`
[INFO] [stdout]    --> src/object_pool.rs:283:12
[INFO] [stdout]     |
[INFO] [stdout] 283 |         fn base_mut(&mut self) -> &mut PoolObjectBase {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `base_mut`
[INFO] [stdout]    --> src/object_pool.rs:299:12
[INFO] [stdout]     |
[INFO] [stdout] 299 |         fn base_mut(&mut self) -> &mut PoolObjectBase {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_uid`
[INFO] [stdout]     --> src/lib.rs:8235:4
[INFO] [stdout]      |
[INFO] [stdout] 8235 | fn make_uid() -> usize {
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.51s
[INFO] running `Command { std: "docker" "inspect" "f826c8a71d6564b9eaa4499a63ddfe3e46b2cfe32373e0f8b7819bf7a24fa821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f826c8a71d6564b9eaa4499a63ddfe3e46b2cfe32373e0f8b7819bf7a24fa821", kill_on_drop: false }`
[INFO] [stdout] f826c8a71d6564b9eaa4499a63ddfe3e46b2cfe32373e0f8b7819bf7a24fa821