[INFO] cloning repository https://github.com/nebelgrau77/blink_HAL_F4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nebelgrau77/blink_HAL_F4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebelgrau77%2Fblink_HAL_F4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebelgrau77%2Fblink_HAL_F4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aff4a1da39f6ec23d9f371c9cb42bd967c286af3
[INFO] documenting nebelgrau77/blink_HAL_F4 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebelgrau77%2Fblink_HAL_F4" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nebelgrau77/blink_HAL_F4 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/nebelgrau77/blink_HAL_F4
[INFO] finished tweaking git repo https://github.com/nebelgrau77/blink_HAL_F4
[INFO] tweaked toml for git repo https://github.com/nebelgrau77/blink_HAL_F4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/nebelgrau77/blink_HAL_F4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ec047040403f97f9751caeb9c84a54e4ace15349b04d54bba4cc029925ad1f8
[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" "8ec047040403f97f9751caeb9c84a54e4ace15349b04d54bba4cc029925ad1f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ec047040403f97f9751caeb9c84a54e4ace15349b04d54bba4cc029925ad1f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ec047040403f97f9751caeb9c84a54e4ace15349b04d54bba4cc029925ad1f8", kill_on_drop: false }`
[INFO] [stdout] 8ec047040403f97f9751caeb9c84a54e4ace15349b04d54bba4cc029925ad1f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bc4b0814b18a27dd7da13e14b0170856dc899f11060d22a62dec8571f4ad518
[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" "5bc4b0814b18a27dd7da13e14b0170856dc899f11060d22a62dec8571f4ad518", 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 version_check v0.1.5
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling stm32f4 v0.8.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]    Compiling stm32f4 v0.9.0
[INFO] [stderr]    Compiling ssd1306 v0.2.6
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[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]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling nom v5.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[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]    Compiling quote v1.0.2
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking tinytga v0.1.0
[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]     Checking tinybmp v0.1.1
[INFO] [stderr]     Checking embedded-graphics v0.4.9
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking stm32f4xx-hal v0.6.0
[INFO] [stderr]  Documenting blink_HAL v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: duplicate lang item in crate `panic_semihosting` (which `blink_HAL` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `panic_halt` (which `blink_HAL` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-9293d7573e547b72.rmeta
[INFO] [stdout]   = note: second definition in `panic_semihosting` loaded from /opt/rustwide/target/debug/deps/libpanic_semihosting-bfb54edaa33a1b70.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `blink_HAL`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name blink_HAL 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 arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-b4183345f3d4c1a4.rmeta --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-13a85f0764166f9a.rmeta --extern cast=/opt/rustwide/target/debug/deps/libcast-c2adf674da737f10.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-cf8f0df8ba30b07a.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-6fbd0eaa8874f11d.rmeta --extern cortex_m_semihosting=/opt/rustwide/target/debug/deps/libcortex_m_semihosting-86ff4da2638a81cf.rmeta --extern embedded_graphics=/opt/rustwide/target/debug/deps/libembedded_graphics-ff6af6d549d7351d.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-fe6ed074f5e92a26.rmeta --extern nb=/opt/rustwide/target/debug/deps/libnb-60cc440debb4dcf2.rmeta --extern panic_halt=/opt/rustwide/target/debug/deps/libpanic_halt-9293d7573e547b72.rmeta --extern panic_semihosting=/opt/rustwide/target/debug/deps/libpanic_semihosting-bfb54edaa33a1b70.rmeta --extern ssd1306=/opt/rustwide/target/debug/deps/libssd1306-50f667c244c0dda7.rmeta --extern stm32f4=/opt/rustwide/target/debug/deps/libstm32f4-02f33d3f615eba15.rmeta --extern stm32f4xx_hal=/opt/rustwide/target/debug/deps/libstm32f4xx_hal-96067036c171f41b.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-b994d65183a56f39.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "5bc4b0814b18a27dd7da13e14b0170856dc899f11060d22a62dec8571f4ad518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc4b0814b18a27dd7da13e14b0170856dc899f11060d22a62dec8571f4ad518", kill_on_drop: false }`
[INFO] [stdout] 5bc4b0814b18a27dd7da13e14b0170856dc899f11060d22a62dec8571f4ad518