[INFO] cloning repository https://github.com/GregWoods/stm32f4-04-neopixel-spi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GregWoods/stm32f4-04-neopixel-spi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregWoods%2Fstm32f4-04-neopixel-spi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregWoods%2Fstm32f4-04-neopixel-spi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ed7ac7dba8a38630e41f50084edbb575ad2f47b
[INFO] documenting GregWoods/stm32f4-04-neopixel-spi against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGregWoods%2Fstm32f4-04-neopixel-spi" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GregWoods/stm32f4-04-neopixel-spi 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-10/source/.cargo/config
[INFO] started tweaking git repo https://github.com/GregWoods/stm32f4-04-neopixel-spi
[INFO] finished tweaking git repo https://github.com/GregWoods/stm32f4-04-neopixel-spi
[INFO] tweaked toml for git repo https://github.com/GregWoods/stm32f4-04-neopixel-spi written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/GregWoods/stm32f4-04-neopixel-spi 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/GregWoods/stm32f4xx-hal`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smart-leds-trait v0.2.0
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.5
[INFO] [stderr]   Downloaded embedded-hal v0.2.3
[INFO] [stderr]   Downloaded panic-halt v0.2.0
[INFO] [stderr]   Downloaded panic-semihosting v0.5.3
[INFO] [stderr]   Downloaded smart-leds v0.3.0
[INFO] [stderr]   Downloaded nb v0.1.2
[INFO] [stderr]   Downloaded rgb v0.8.17
[INFO] [stderr]   Downloaded stm32f4 v0.11.0
[INFO] [stderr]   Downloaded ws2812-spi v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] f07da4661ee2f438330067c40f7ab8267b072e0c4888eb718c4f689438361b50
[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" "f07da4661ee2f438330067c40f7ab8267b072e0c4888eb718c4f689438361b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f07da4661ee2f438330067c40f7ab8267b072e0c4888eb718c4f689438361b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f07da4661ee2f438330067c40f7ab8267b072e0c4888eb718c4f689438361b50", kill_on_drop: false }`
[INFO] [stdout] f07da4661ee2f438330067c40f7ab8267b072e0c4888eb718c4f689438361b50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 288cf9fc48682495dbacd0a60fa40c64bb526a06b70c4203c1f1491f303d63b0
[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" "288cf9fc48682495dbacd0a60fa40c64bb526a06b70c4203c1f1491f303d63b0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]     Checking rgb v0.8.17
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling stm32f4 v0.11.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[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]     Checking ws2812-spi v0.3.0
[INFO] [stderr]     Checking smart-leds v0.3.0
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]     Checking panic-semihosting v0.5.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking stm32f4xx-hal v0.8.1 (https://github.com/GregWoods/stm32f4xx-hal#0adcffe3)
[INFO] [stderr]  Documenting stm32f4-04-neopixel-spi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: duplicate lang item in crate `panic_halt` (which `stm32f4_04_neopixel_spi` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `panic_semihosting` (which `stm32f4_04_neopixel_spi` depends on)
[INFO] [stdout]   = note: first definition in `panic_semihosting` loaded from /opt/rustwide/target/debug/deps/libpanic_semihosting-46279ddf3df837cf.rmeta
[INFO] [stdout]   = note: second definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-3e003e74a8f0dc27.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `stm32f4-04-neopixel-spi`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name stm32f4_04_neopixel_spi src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-8b4756fb9245a32e.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-65ce3622160fbe67.rmeta --extern cortex_m_semihosting=/opt/rustwide/target/debug/deps/libcortex_m_semihosting-02ce65e548a9f3fe.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-3a77be208f2de5df.rmeta --extern nb=/opt/rustwide/target/debug/deps/libnb-5e3ecf76d2f570ed.rmeta --extern panic_halt=/opt/rustwide/target/debug/deps/libpanic_halt-3e003e74a8f0dc27.rmeta --extern panic_semihosting=/opt/rustwide/target/debug/deps/libpanic_semihosting-46279ddf3df837cf.rmeta --extern smart_leds=/opt/rustwide/target/debug/deps/libsmart_leds-fabd2689cc253fa4.rmeta --extern stm32f4xx_hal=/opt/rustwide/target/debug/deps/libstm32f4xx_hal-8356815f2061ae21.rmeta --extern ws2812_spi=/opt/rustwide/target/debug/deps/libws2812_spi-a43235ff62c125a9.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "288cf9fc48682495dbacd0a60fa40c64bb526a06b70c4203c1f1491f303d63b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "288cf9fc48682495dbacd0a60fa40c64bb526a06b70c4203c1f1491f303d63b0", kill_on_drop: false }`
[INFO] [stdout] 288cf9fc48682495dbacd0a60fa40c64bb526a06b70c4203c1f1491f303d63b0