[INFO] cloning repository https://github.com/ehelbig1/embedded_rust_flashing_heart
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ehelbig1/embedded_rust_flashing_heart" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehelbig1%2Fembedded_rust_flashing_heart", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehelbig1%2Fembedded_rust_flashing_heart'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4da1ad6684de652af9e656d5b178fa1cdf776ab
[INFO] documenting ehelbig1/embedded_rust_flashing_heart against 1.76.0 for beta-1.77-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehelbig1%2Fembedded_rust_flashing_heart" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ehelbig1/embedded_rust_flashing_heart 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-5-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ehelbig1/embedded_rust_flashing_heart
[INFO] finished tweaking git repo https://github.com/ehelbig1/embedded_rust_flashing_heart
[INFO] tweaked toml for git repo https://github.com/ehelbig1/embedded_rust_flashing_heart written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ehelbig1/embedded_rust_flashing_heart already has a lockfile, it will not be regenerated
[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
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] documenting ehelbig1/embedded_rust_flashing_heart against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehelbig1%2Fembedded_rust_flashing_heart" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ehelbig1/embedded_rust_flashing_heart on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ehelbig1/embedded_rust_flashing_heart
[INFO] finished tweaking git repo https://github.com/ehelbig1/embedded_rust_flashing_heart
[INFO] tweaked toml for git repo https://github.com/ehelbig1/embedded_rust_flashing_heart written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ehelbig1/embedded_rust_flashing_heart already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded usb-device v0.2.8
[INFO] [stderr]   Downloaded critical-section v0.2.5
[INFO] [stderr]   Downloaded nrf-hal-common v0.13.0
[INFO] [stderr]   Downloaded embedded-storage v0.1.0
[INFO] [stderr]   Downloaded cortex-m v0.7.4
[INFO] [stderr]   Downloaded nrf-usbd v0.1.1
[INFO] [stderr]   Downloaded tiny-led-matrix v1.0.2
[INFO] [stderr]   Downloaded microbit-v2 v0.11.0
[INFO] [stderr]   Downloaded nrf52833-hal v0.13.0
[INFO] [stderr]   Downloaded microbit-common v0.11.0
[INFO] [stderr]   Downloaded fixed v1.13.1
[INFO] [stderr]   Downloaded nrf52833-pac v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20584c15d1dabbb05e5da6e90bde0b4822c25c0de566fedc88b65f29a8039376
[INFO] running `Command { std: "docker" "start" "-a" "20584c15d1dabbb05e5da6e90bde0b4822c25c0de566fedc88b65f29a8039376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20584c15d1dabbb05e5da6e90bde0b4822c25c0de566fedc88b65f29a8039376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20584c15d1dabbb05e5da6e90bde0b4822c25c0de566fedc88b65f29a8039376", kill_on_drop: false }`
[INFO] [stdout] 20584c15d1dabbb05e5da6e90bde0b4822c25c0de566fedc88b65f29a8039376
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+beta-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10cf967e07578e937074cef4d9cf919d87d70adddc3bbe1145fd0a2aa3a908d4
[INFO] running `Command { std: "docker" "start" "-a" "10cf967e07578e937074cef4d9cf919d87d70adddc3bbe1145fd0a2aa3a908d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]    Compiling semver v1.0.6
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling az v1.2.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling critical-section v0.2.5
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]    Compiling nrf52833-pac v0.9.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]    Compiling fixed v1.13.1
[INFO] [stderr]     Checking bytemuck v1.8.0
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr]    Compiling nrf-hal-common v0.13.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking usb-device v0.2.8
[INFO] [stderr]     Checking embedded-dma v0.1.2
[INFO] [stderr]     Checking embedded-storage v0.1.0
[INFO] [stderr]    Compiling nrf52833-hal v0.13.0
[INFO] [stderr]     Checking tiny-led-matrix v1.0.2
[INFO] [stderr]    Compiling flashing_heart v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]     Checking nrf-usbd v0.1.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.6.15
[INFO] [stderr]     Checking microbit-common v0.11.0
[INFO] [stderr]     Checking microbit-v2 v0.11.0
[INFO] [stderr]  Documenting flashing_heart v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: duplicate lang item in crate `std` (which `critical_section` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `panic_halt` (which `flashing_heart` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-8c488d910dc73f81.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-c3d3f3356130ff3b.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `flashing_heart`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name flashing_heart 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=11df8a5235177233 -L dependency=/opt/rustwide/target/debug/deps --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-6bcafbd138c75762.rmeta --extern microbit=/opt/rustwide/target/debug/deps/libmicrobit-3fad873056e24f12.rmeta --extern panic_halt=/opt/rustwide/target/debug/deps/libpanic_halt-8c488d910dc73f81.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "10cf967e07578e937074cef4d9cf919d87d70adddc3bbe1145fd0a2aa3a908d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10cf967e07578e937074cef4d9cf919d87d70adddc3bbe1145fd0a2aa3a908d4", kill_on_drop: false }`
[INFO] [stdout] 10cf967e07578e937074cef4d9cf919d87d70adddc3bbe1145fd0a2aa3a908d4