[INFO] fetching crate bq769x0 0.3.1...
[INFO] documenting bq769x0-0.3.1 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate bq769x0 0.3.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate bq769x0 0.3.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bq769x0 0.3.1
[INFO] finished tweaking crates.io crate bq769x0 0.3.1
[INFO] tweaked toml for crates.io crate bq769x0 0.3.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crc-any v2.3.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebd84a8f16343ebb84b53829e664911943c299966e2af2278dd00935cd7cb001
[INFO] running `Command { std: "docker" "start" "-a" "ebd84a8f16343ebb84b53829e664911943c299966e2af2278dd00935cd7cb001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebd84a8f16343ebb84b53829e664911943c299966e2af2278dd00935cd7cb001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebd84a8f16343ebb84b53829e664911943c299966e2af2278dd00935cd7cb001", kill_on_drop: false }`
[INFO] [stdout] ebd84a8f16343ebb84b53829e664911943c299966e2af2278dd00935cd7cb001
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5558ced5c22910812efdd81742b9fa4cebaa741039cd3781a8bf8b408feb877
[INFO] running `Command { std: "docker" "start" "-a" "e5558ced5c22910812efdd81742b9fa4cebaa741039cd3781a8bf8b408feb877", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking crc-any v2.3.12
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr]  Documenting bq769x0 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_panic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `bq769x0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name bq769x0 src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="no_std"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-7925d1bf53c9b12a.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-ac510172633a1714.rmeta --extern crc_any=/opt/rustwide/target/debug/deps/libcrc_any-dd7ddcfa46843611.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-7842c2b549794463.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ffa2e8e66ad96b3d.rmeta --cap-lints=warn --crate-version 0.3.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e5558ced5c22910812efdd81742b9fa4cebaa741039cd3781a8bf8b408feb877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5558ced5c22910812efdd81742b9fa4cebaa741039cd3781a8bf8b408feb877", kill_on_drop: false }`
[INFO] [stdout] e5558ced5c22910812efdd81742b9fa4cebaa741039cd3781a8bf8b408feb877
