[INFO] fetching crate wasefire-protocol-usb 0.3.0...
[INFO] testing wasefire-protocol-usb-0.3.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate wasefire-protocol-usb 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate wasefire-protocol-usb 0.3.0
[INFO] finished tweaking crates.io crate wasefire-protocol-usb 0.3.0
[INFO] tweaked toml for crates.io crate wasefire-protocol-usb 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasefire-protocol-usb 0.3.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wasefire-protocol-usb 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasefire-logger v0.2.0
[INFO] [stderr]   Downloaded wasefire-error v0.1.3
[INFO] [stderr]   Downloaded wasefire-protocol v0.3.0
[INFO] [stderr]   Downloaded wasefire-common v0.1.0
[INFO] [stderr]   Downloaded wasefire-wire-derive v0.1.2
[INFO] [stderr]   Downloaded wasefire-board-api v0.9.0
[INFO] [stderr]   Downloaded wasefire-sync v0.1.2
[INFO] [stderr]   Downloaded wasefire-wire v0.1.2
[INFO] [stderr]   Downloaded usbd-hid-descriptors v0.8.2
[INFO] [stderr]   Downloaded wasefire-one-of v0.1.1
[INFO] [stderr]   Downloaded ssmarshal v1.0.0
[INFO] [stderr]   Downloaded usbd-hid-macros v0.8.2
[INFO] [stderr]   Downloaded usbd-hid v0.8.2
[INFO] [stderr]   Downloaded rusb v0.9.4
[INFO] [stderr]   Downloaded bitfield v0.14.0
[INFO] [stderr]   Downloaded wasefire-store v0.3.1
[INFO] [stderr]   Downloaded derive-where v1.6.0
[INFO] [stderr]   Downloaded usb-device v0.3.2
[INFO] [stderr]   Downloaded libusb1-sys v0.7.0
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dea9e9d0161cc4ff3c01faa199e0e83d170dda411c5801e2b375ed83a5b5cbe4
[INFO] running `Command { std: "docker" "start" "-a" "dea9e9d0161cc4ff3c01faa199e0e83d170dda411c5801e2b375ed83a5b5cbe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dea9e9d0161cc4ff3c01faa199e0e83d170dda411c5801e2b375ed83a5b5cbe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dea9e9d0161cc4ff3c01faa199e0e83d170dda411c5801e2b375ed83a5b5cbe4", kill_on_drop: false }`
[INFO] [stdout] dea9e9d0161cc4ff3c01faa199e0e83d170dda411c5801e2b375ed83a5b5cbe4
[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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbc4358ba8af1dd720516f0e13f40f6ecab7a5dbc31a31e73b9ee1e6f967793c
[INFO] running `Command { std: "docker" "start" "-a" "bbc4358ba8af1dd720516f0e13f40f6ecab7a5dbc31a31e73b9ee1e6f967793c", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasefire-logger v0.2.0
[INFO] [stderr]    Compiling wasefire-one-of v0.1.1
[INFO] [stderr]    Compiling wasefire-protocol-usb v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: Exactly one of feature "device" or "host" can be enabled.
[INFO] [stdout]   --> src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | exactly_one_of!["device", "host"];
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::internal_one_of` which comes from the expansion of the macro `exactly_one_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(never_type)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasefire-protocol-usb` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bbc4358ba8af1dd720516f0e13f40f6ecab7a5dbc31a31e73b9ee1e6f967793c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbc4358ba8af1dd720516f0e13f40f6ecab7a5dbc31a31e73b9ee1e6f967793c", kill_on_drop: false }`
[INFO] [stdout] bbc4358ba8af1dd720516f0e13f40f6ecab7a5dbc31a31e73b9ee1e6f967793c