[INFO] fetching crate stm32wb-hal 0.1.2...
[INFO] documenting stm32wb-hal-0.1.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate stm32wb-hal 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate stm32wb-hal 0.1.2 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking crates.io crate stm32wb-hal 0.1.2
[INFO] finished tweaking crates.io crate stm32wb-hal 0.1.2
[INFO] tweaked toml for crates.io crate stm32wb-hal 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate stm32wb-hal 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stm32wb-pac v0.2.0
[INFO] [stderr]   Downloaded cortex-m-rtfm v0.5.1
[INFO] [stderr]   Downloaded cortex-m-rtfm-macros v0.5.0
[INFO] [stderr]   Downloaded stm32-usbd v0.5.1
[INFO] [stderr]   Downloaded rtfm-core v0.3.0
[INFO] [stderr]   Downloaded stm32-device-signature v0.3.0
[INFO] [stderr]   Downloaded rtfm-syntax v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] be56222d01e3f69d5dd4ce1da7ea88594f2ffeb6cdf5b9cec88b340f28a8dc11
[INFO] running `Command { std: "docker" "start" "-a" "be56222d01e3f69d5dd4ce1da7ea88594f2ffeb6cdf5b9cec88b340f28a8dc11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be56222d01e3f69d5dd4ce1da7ea88594f2ffeb6cdf5b9cec88b340f28a8dc11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be56222d01e3f69d5dd4ce1da7ea88594f2ffeb6cdf5b9cec88b340f28a8dc11", kill_on_drop: false }`
[INFO] [stdout] be56222d01e3f69d5dd4ce1da7ea88594f2ffeb6cdf5b9cec88b340f28a8dc11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c6da05de4e73232ab7be38d94d1894aa09078822879899202b64ea5bff3fdfa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6c6da05de4e73232ab7be38d94d1894aa09078822879899202b64ea5bff3fdfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.15
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]    Compiling stm32-device-signature v0.3.0
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling stm32wb-pac v0.2.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling heapless v0.5.3
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]    Compiling stm32wb-hal v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bit_field v0.10.0
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking cast v0.2.3
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking cortex-m-rt v0.6.12
[INFO] [stderr]  Documenting stm32wb-hal v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/rtc.rs:213:5
[INFO] [stdout]     |
[INFO] [stdout] 213 |     (tmp + (value & 0x0F))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.48s
[INFO] running `Command { std: "docker" "inspect" "6c6da05de4e73232ab7be38d94d1894aa09078822879899202b64ea5bff3fdfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c6da05de4e73232ab7be38d94d1894aa09078822879899202b64ea5bff3fdfa", kill_on_drop: false }`
[INFO] [stdout] 6c6da05de4e73232ab7be38d94d1894aa09078822879899202b64ea5bff3fdfa