[INFO] fetching crate usbd-serial 0.1.1...
[INFO] testing usbd-serial-0.1.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate usbd-serial 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate usbd-serial 0.1.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usbd-serial 0.1.1
[INFO] finished tweaking crates.io crate usbd-serial 0.1.1
[INFO] tweaked toml for crates.io crate usbd-serial 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3b803e0ed10613043e3100b1c126364288868199ff6ddb1106dfc8240331146
[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" "d3b803e0ed10613043e3100b1c126364288868199ff6ddb1106dfc8240331146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3b803e0ed10613043e3100b1c126364288868199ff6ddb1106dfc8240331146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b803e0ed10613043e3100b1c126364288868199ff6ddb1106dfc8240331146", kill_on_drop: false }`
[INFO] [stdout] d3b803e0ed10613043e3100b1c126364288868199ff6ddb1106dfc8240331146
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42174f26caa4ca6f0dda0e5f6c60ace453cca6db8159e6190908b25530c64cca
[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" "42174f26caa4ca6f0dda0e5f6c60ace453cca6db8159e6190908b25530c64cca", kill_on_drop: false }`
[INFO] [stderr]    Compiling usb-device v0.2.7
[INFO] [stderr]    Compiling usbd-serial v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/serial_port.rs:54:22
[INFO] [stdout]    |
[INFO] [stdout] 54 |             unsafe { mem::uninitialized() },
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/serial_port.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |             unsafe { mem::uninitialized() })
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "42174f26caa4ca6f0dda0e5f6c60ace453cca6db8159e6190908b25530c64cca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42174f26caa4ca6f0dda0e5f6c60ace453cca6db8159e6190908b25530c64cca", kill_on_drop: false }`
[INFO] [stdout] 42174f26caa4ca6f0dda0e5f6c60ace453cca6db8159e6190908b25530c64cca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34eebeb8591790f330e30ef5c0c8516047a896499adc586b2ab6b16340d13e3e
[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" "34eebeb8591790f330e30ef5c0c8516047a896499adc586b2ab6b16340d13e3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling usbd-serial v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/serial_port.rs:54:22
[INFO] [stdout]    |
[INFO] [stdout] 54 |             unsafe { mem::uninitialized() },
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/serial_port.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |             unsafe { mem::uninitialized() })
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `generic_array`
[INFO] [stdout]    --> src/buffer.rs:141:38
[INFO] [stdout]     |
[INFO] [stdout] 141 |     type Buf = crate::buffer::Buffer<generic_array::typenum::consts::U5>;
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^ use of undeclared crate or module `generic_array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/serial_port.rs:54:22
[INFO] [stdout]    |
[INFO] [stdout] 54 |             unsafe { mem::uninitialized() },
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/serial_port.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |             unsafe { mem::uninitialized() })
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `usbd-serial`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "34eebeb8591790f330e30ef5c0c8516047a896499adc586b2ab6b16340d13e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34eebeb8591790f330e30ef5c0c8516047a896499adc586b2ab6b16340d13e3e", kill_on_drop: false }`
[INFO] [stdout] 34eebeb8591790f330e30ef5c0c8516047a896499adc586b2ab6b16340d13e3e