[INFO] fetching crate karabiner-onetime 0.1.0...
[INFO] testing karabiner-onetime-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate karabiner-onetime 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate karabiner-onetime 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate karabiner-onetime 0.1.0
[INFO] finished tweaking crates.io crate karabiner-onetime 0.1.0
[INFO] tweaked toml for crates.io crate karabiner-onetime 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b1eb6c4a3c80aa6249d780be187a71fc53a8a8bba0545401da029959c5ea7cc
[INFO] running `Command { std: "docker" "start" "-a" "0b1eb6c4a3c80aa6249d780be187a71fc53a8a8bba0545401da029959c5ea7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b1eb6c4a3c80aa6249d780be187a71fc53a8a8bba0545401da029959c5ea7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b1eb6c4a3c80aa6249d780be187a71fc53a8a8bba0545401da029959c5ea7cc", kill_on_drop: false }`
[INFO] [stdout] 0b1eb6c4a3c80aa6249d780be187a71fc53a8a8bba0545401da029959c5ea7cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f847758856425e601cbf3f37f722bf406ac4133368c5b7b4d663b407df9b74e2
[INFO] running `Command { std: "docker" "start" "-a" "f847758856425e601cbf3f37f722bf406ac4133368c5b7b4d663b407df9b74e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling karabiner-onetime v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/lib.rs:50:22
[INFO] [stdout]    |
[INFO] [stdout] 50 |         if self.atom.compare_and_swap(*INIT, *WAIT, Ordering::SeqCst) == *INIT {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/lib.rs:82:22
[INFO] [stdout]    |
[INFO] [stdout] 82 |         if self.atom.compare_and_swap(*INIT, *FREE, Ordering::SeqCst) == *WAIT {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         unsafe { self.cell.into_inner() }
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `karabiner-onetime` due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f847758856425e601cbf3f37f722bf406ac4133368c5b7b4d663b407df9b74e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f847758856425e601cbf3f37f722bf406ac4133368c5b7b4d663b407df9b74e2", kill_on_drop: false }`
[INFO] [stdout] f847758856425e601cbf3f37f722bf406ac4133368c5b7b4d663b407df9b74e2