[INFO] fetching crate bootkbd 0.2.2...
[INFO] checking bootkbd-0.2.2 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate bootkbd 0.2.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate bootkbd 0.2.2 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bootkbd 0.2.2
[INFO] finished tweaking crates.io crate bootkbd 0.2.2
[INFO] tweaked toml for crates.io crate bootkbd 0.2.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded usb-host v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbcbd195ee76ac7e49ca9bbcd842bb6ea48f3625604fd00c7edb4921847545bc
[INFO] running `Command { std: "docker" "start" "-a" "dbcbd195ee76ac7e49ca9bbcd842bb6ea48f3625604fd00c7edb4921847545bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbcbd195ee76ac7e49ca9bbcd842bb6ea48f3625604fd00c7edb4921847545bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbcbd195ee76ac7e49ca9bbcd842bb6ea48f3625604fd00c7edb4921847545bc", kill_on_drop: false }`
[INFO] [stdout] dbcbd195ee76ac7e49ca9bbcd842bb6ea48f3625604fd00c7edb4921847545bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d51b71c00f52720baa0ffa48a1ab92dbd24362f9bcd2eca8206c4c51cf170735
[INFO] running `Command { std: "docker" "start" "-a" "d51b71c00f52720baa0ffa48a1ab92dbd24362f9bcd2eca8206c4c51cf170735", kill_on_drop: false }`
[INFO] [stderr]     Checking usb-host v0.1.3
[INFO] [stderr]     Checking bootkbd v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `log` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use log::{self, error, info, trace, warn, LevelFilter};
[INFO] [stdout]   |           ^^^^ the item `log` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `log` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use log::{self, error, info, trace, warn, LevelFilter};
[INFO] [stdout]   |           ^^^^ the item `log` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:437:19
[INFO] [stdout]     |
[INFO] [stdout] 437 |     Configuration(&'a ConfigurationDescriptor),
[INFO] [stdout]     |     ------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 437 |     Configuration(()),
[INFO] [stdout]     |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:440:11
[INFO] [stdout]     |
[INFO] [stdout] 440 |     Other(&'a [u8]),
[INFO] [stdout]     |     ----- ^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 440 |     Other(()),
[INFO] [stdout]     |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 256]` does not permit being left uninitialized
[INFO] [stdout]    --> src/lib.rs:219:30
[INFO] [stdout]     |
[INFO] [stdout] 219 |                     unsafe { MaybeUninit::<[u8; CONFIG_BUFFER_LEN]>::uninit().assume_init() };
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              this code causes undefined behavior when executed
[INFO] [stdout]     |                              help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 256]` does not permit being left uninitialized
[INFO] [stdout]    --> src/lib.rs:219:30
[INFO] [stdout]     |
[INFO] [stdout] 219 |                     unsafe { MaybeUninit::<[u8; CONFIG_BUFFER_LEN]>::uninit().assume_init() };
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              this code causes undefined behavior when executed
[INFO] [stdout]     |                              help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "d51b71c00f52720baa0ffa48a1ab92dbd24362f9bcd2eca8206c4c51cf170735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d51b71c00f52720baa0ffa48a1ab92dbd24362f9bcd2eca8206c4c51cf170735", kill_on_drop: false }`
[INFO] [stdout] d51b71c00f52720baa0ffa48a1ab92dbd24362f9bcd2eca8206c4c51cf170735
