[INFO] fetching crate blue_hal 1.1.0...
[INFO] documenting blue_hal-1.1.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate blue_hal 1.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate blue_hal 1.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate blue_hal 1.1.0
[INFO] finished tweaking crates.io crate blue_hal 1.1.0
[INFO] tweaked toml for crates.io crate blue_hal 1.1.0 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" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded defmt-rtt v0.2.0
[INFO] [stderr]   Downloaded aligned v0.2.0
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.7
[INFO] [stderr]   Downloaded aligned v0.3.5
[INFO] [stderr]   Downloaded cortex-m v0.6.7
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.6.15
[INFO] [stderr]   Downloaded ufmt-macros v0.2.0
[INFO] [stderr]   Downloaded defmt-macros v0.2.3
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.15
[INFO] [stderr]   Downloaded nom v6.2.2
[INFO] [stderr]   Downloaded ufmt v0.1.2
[INFO] [stderr]   Downloaded cortex-m v0.5.11
[INFO] [stderr]   Downloaded stm32f4 v0.12.1
[INFO] [stderr]   Downloaded defmt-parser v0.2.2
[INFO] [stderr]   Downloaded efm32gg11b v0.1.0
[INFO] [stderr]   Downloaded defmt v0.2.3
[INFO] [stderr]   Downloaded marker-blanket v0.1.0
[INFO] [stderr]   Downloaded max3263x v0.1.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3080a207202795dd23c09baad77ba5e32342a078650204b969166d742f0a68bb
[INFO] running `Command { std: "docker" "start" "-a" "3080a207202795dd23c09baad77ba5e32342a078650204b969166d742f0a68bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3080a207202795dd23c09baad77ba5e32342a078650204b969166d742f0a68bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3080a207202795dd23c09baad77ba5e32342a078650204b969166d742f0a68bb", kill_on_drop: false }`
[INFO] [stdout] 3080a207202795dd23c09baad77ba5e32342a078650204b969166d742f0a68bb
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2df75a85d6dc1ea3c6fe4f8978c770ed420087b563e38ce0a401c1ec8b9d89f5
[INFO] running `Command { std: "docker" "start" "-a" "2df75a85d6dc1ea3c6fe4f8978c770ed420087b563e38ce0a401c1ec8b9d89f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling defmt v0.2.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling defmt-parser v0.2.2
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling nom v6.2.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking bytemuck v1.14.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr]    Compiling defmt-macros v0.2.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.6.15
[INFO] [stderr]    Compiling ufmt-macros v0.2.0
[INFO] [stderr]    Compiling marker-blanket v0.1.0
[INFO] [stderr]     Checking ufmt v0.1.2
[INFO] [stderr]     Checking defmt-rtt v0.2.0
[INFO] [stderr]  Documenting blue_hal v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(associated_type_bounds)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 `blue_hal`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name blue_hal src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="defmt-default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b0269310b2adf809 -L dependency=/opt/rustwide/target/debug/deps --extern bytemuck=/opt/rustwide/target/debug/deps/libbytemuck-0254a6b6cfa88d65.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-e8cc3ade715e9a69.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-634d0354659c05c0.rmeta --extern cortex_m_semihosting=/opt/rustwide/target/debug/deps/libcortex_m_semihosting-031267e31e34ffd2.rmeta --extern crc=/opt/rustwide/target/debug/deps/libcrc-4a25fc80b4cd9ce4.rmeta --extern defmt=/opt/rustwide/target/debug/deps/libdefmt-722847b4b3d2eed8.rmeta --extern defmt_rtt=/opt/rustwide/target/debug/deps/libdefmt_rtt-7e93f6a47fabb3d5.rmeta --extern marker_blanket=/opt/rustwide/target/debug/deps/libmarker_blanket-85e2f642730be487.so --extern nb=/opt/rustwide/target/debug/deps/libnb-7ad225acb25d9c98.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-c7edc68eb8dda9ea.rmeta --extern paste=/opt/rustwide/target/debug/deps/libpaste-8ad03af0cdf2ca5a.so --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-8ec233b90557a68b.rmeta --extern ufmt=/opt/rustwide/target/debug/deps/libufmt-f9b2e105d408a14a.rmeta --cap-lints=warn --crate-version 1.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2df75a85d6dc1ea3c6fe4f8978c770ed420087b563e38ce0a401c1ec8b9d89f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df75a85d6dc1ea3c6fe4f8978c770ed420087b563e38ce0a401c1ec8b9d89f5", kill_on_drop: false }`
[INFO] [stdout] 2df75a85d6dc1ea3c6fe4f8978c770ed420087b563e38ce0a401c1ec8b9d89f5
