[INFO] cloning repository https://github.com/fsanti68/rust-ite-keyboard
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fsanti68/rust-ite-keyboard" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffsanti68%2Frust-ite-keyboard", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffsanti68%2Frust-ite-keyboard'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15b175ec938d26c0c520bc33e520c13a91cca808
[INFO] documenting fsanti68/rust-ite-keyboard against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffsanti68%2Frust-ite-keyboard" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fsanti68/rust-ite-keyboard on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fsanti68/rust-ite-keyboard
[INFO] finished tweaking git repo https://github.com/fsanti68/rust-ite-keyboard
[INFO] tweaked toml for git repo https://github.com/fsanti68/rust-ite-keyboard written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fsanti68/rust-ite-keyboard 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit-set v0.2.0
[INFO] [stderr]   Downloaded libusb v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5103e6293dba7e37224b4137499af80199d89b06c246395ee86985c62bc53dad
[INFO] running `Command { std: "docker" "start" "-a" "5103e6293dba7e37224b4137499af80199d89b06c246395ee86985c62bc53dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5103e6293dba7e37224b4137499af80199d89b06c246395ee86985c62bc53dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5103e6293dba7e37224b4137499af80199d89b06c246395ee86985c62bc53dad", kill_on_drop: false }`
[INFO] [stdout] 5103e6293dba7e37224b4137499af80199d89b06c246395ee86985c62bc53dad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9764df3ec0a30baf520df39df936e15cedac9ac41e875ea297f3c32676de446f
[INFO] running `Command { std: "docker" "start" "-a" "9764df3ec0a30baf520df39df936e15cedac9ac41e875ea297f3c32676de446f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]     Checking libusb v0.3.0
[INFO] [stderr]  Documenting ite-keyboard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rustc_private)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ite-keyboard`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ite_keyboard src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=7f28c0e25efe8984 -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-9c7d51f549cf58b7.rmeta --extern libusb=/opt/rustwide/target/debug/deps/liblibusb-92e275cee5dc8742.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9764df3ec0a30baf520df39df936e15cedac9ac41e875ea297f3c32676de446f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9764df3ec0a30baf520df39df936e15cedac9ac41e875ea297f3c32676de446f", kill_on_drop: false }`
[INFO] [stdout] 9764df3ec0a30baf520df39df936e15cedac9ac41e875ea297f3c32676de446f
