[INFO] cloning repository https://github.com/ForsakenHarmony/stm32-ws2812
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ForsakenHarmony/stm32-ws2812" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FForsakenHarmony%2Fstm32-ws2812", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FForsakenHarmony%2Fstm32-ws2812'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9e7539d3899f39d8614a6802663fc85cc9692b7
[INFO] documenting ForsakenHarmony/stm32-ws2812 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FForsakenHarmony%2Fstm32-ws2812" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ForsakenHarmony/stm32-ws2812 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-9/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ForsakenHarmony/stm32-ws2812
[INFO] finished tweaking git repo https://github.com/ForsakenHarmony/stm32-ws2812
[INFO] tweaked toml for git repo https://github.com/ForsakenHarmony/stm32-ws2812 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ForsakenHarmony/stm32-ws2812 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20d3f3eadbc73ae52a15b061ba0600ee6c254e646cbbb4b116a4c0aa8cf68fb4
[INFO] running `Command { std: "docker" "start" "-a" "20d3f3eadbc73ae52a15b061ba0600ee6c254e646cbbb4b116a4c0aa8cf68fb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20d3f3eadbc73ae52a15b061ba0600ee6c254e646cbbb4b116a4c0aa8cf68fb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d3f3eadbc73ae52a15b061ba0600ee6c254e646cbbb4b116a4c0aa8cf68fb4", kill_on_drop: false }`
[INFO] [stdout] 20d3f3eadbc73ae52a15b061ba0600ee6c254e646cbbb4b116a4c0aa8cf68fb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88b38d5e1784434ef9496e1853a589b126b5826264416f1b7d8c86a07da37e03
[INFO] running `Command { std: "docker" "start" "-a" "88b38d5e1784434ef9496e1853a589b126b5826264416f1b7d8c86a07da37e03", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling cortex-m-rt v0.6.11
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rgb v0.8.14
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling stm32l4 v0.8.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking smart-leds-trait v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking ws2812-spi v0.2.0
[INFO] [stderr]     Checking ws2812-timer-delay v0.3.0
[INFO] [stderr]     Checking smart-leds v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking as-slice v0.1.2
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]     Checking panic-semihosting v0.5.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.7
[INFO] [stderr]     Checking stm32l4xx-hal v0.5.0
[INFO] [stderr]  Documenting stm32-ws2812 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: duplicate lang item in crate `panic_halt`: `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `panic_semihosting` (which `stm32_ws2812` depends on)
[INFO] [stdout]   = note: first definition in `panic_semihosting` loaded from /opt/rustwide/target/debug/deps/libpanic_semihosting-7ae7c542c6c52dfd.rmeta
[INFO] [stdout]   = note: second definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-8e0ecb18292def22.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `stm32-ws2812`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name stm32_ws2812 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=b7e1b564514c023c -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-c1bd6e887fe5075d.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-3a2fa1494856168c.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-803b9d094f48fe0d.rmeta --extern cortex_m_semihosting=/opt/rustwide/target/debug/deps/libcortex_m_semihosting-058b210b3f45debf.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-011151aac5ca4d91.rmeta --extern nb=/opt/rustwide/target/debug/deps/libnb-04d4b53c2bb2d5c9.rmeta --extern panic_halt=/opt/rustwide/target/debug/deps/libpanic_halt-8e0ecb18292def22.rmeta --extern panic_semihosting=/opt/rustwide/target/debug/deps/libpanic_semihosting-7ae7c542c6c52dfd.rmeta --extern smart_leds=/opt/rustwide/target/debug/deps/libsmart_leds-c0c0783364f38cc6.rmeta --extern stm32l4xx_hal=/opt/rustwide/target/debug/deps/libstm32l4xx_hal-821a39fdc714534f.rmeta --extern ws2812_spi=/opt/rustwide/target/debug/deps/libws2812_spi-4d10448ac9f7897a.rmeta --extern ws2812_timer_delay=/opt/rustwide/target/debug/deps/libws2812_timer_delay-a3ef5659f7e1da6e.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "88b38d5e1784434ef9496e1853a589b126b5826264416f1b7d8c86a07da37e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b38d5e1784434ef9496e1853a589b126b5826264416f1b7d8c86a07da37e03", kill_on_drop: false }`
[INFO] [stdout] 88b38d5e1784434ef9496e1853a589b126b5826264416f1b7d8c86a07da37e03