[INFO] cloning repository https://github.com/mahazel-dev/nrf52840-empty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mahazel-dev/nrf52840-empty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahazel-dev%2Fnrf52840-empty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahazel-dev%2Fnrf52840-empty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52725fc95629b2da91fb13027d64f2c93b2e45ea
[INFO] documenting mahazel-dev/nrf52840-empty 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%2Fmahazel-dev%2Fnrf52840-empty" "/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/mahazel-dev/nrf52840-empty 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.toml
[INFO] started tweaking git repo https://github.com/mahazel-dev/nrf52840-empty
[INFO] finished tweaking git repo https://github.com/mahazel-dev/nrf52840-empty
[INFO] tweaked toml for git repo https://github.com/mahazel-dev/nrf52840-empty written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mahazel-dev/nrf52840-empty 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 1cdf1bdb84080eeee731bb762311c72588c4973eb8699ddab2f72d59d69c565b
[INFO] running `Command { std: "docker" "start" "-a" "1cdf1bdb84080eeee731bb762311c72588c4973eb8699ddab2f72d59d69c565b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cdf1bdb84080eeee731bb762311c72588c4973eb8699ddab2f72d59d69c565b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cdf1bdb84080eeee731bb762311c72588c4973eb8699ddab2f72d59d69c565b", kill_on_drop: false }`
[INFO] [stdout] 1cdf1bdb84080eeee731bb762311c72588c4973eb8699ddab2f72d59d69c565b
[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] 1c32a331a082843f87c38fa6dbc1ea1f3debbc1db6f88f88192df4b785eb76e4
[INFO] running `Command { std: "docker" "start" "-a" "1c32a331a082843f87c38fa6dbc1ea1f3debbc1db6f88f88192df4b785eb76e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling critical-section v0.2.7
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]    Compiling az v1.2.0
[INFO] [stderr]    Compiling defmt v0.3.1
[INFO] [stderr]    Compiling defmt-macros v0.3.2
[INFO] [stderr]    Compiling nrf52840-pac v0.11.0
[INFO] [stderr]    Compiling fixed v1.15.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]    Compiling nrf-hal-common v0.15.0
[INFO] [stderr]     Checking usb-device v0.2.8
[INFO] [stderr]    Compiling defmt-parser v0.3.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking embedded-storage v0.3.0
[INFO] [stderr]    Compiling nrf52840-hal v0.15.0
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]    Compiling defmt-rtt v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nrf-usbd v0.1.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]  Documenting nrf52840-sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn panic(_info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `critical_section` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/beta-2022-05-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e17ad048e2926c1e.rlib
[INFO] [stdout]    = note: second definition in the local crate (`nrf52840_sample`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `nrf52840-sample`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name nrf52840_sample src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="defmt-default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=12c7da12516253b6 -L dependency=/opt/rustwide/target/debug/deps --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-06c23cc48beb9a8d.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-bce450ddc370bcda.rmeta --extern defmt=/opt/rustwide/target/debug/deps/libdefmt-038ff817072f79a2.rmeta --extern defmt_rtt=/opt/rustwide/target/debug/deps/libdefmt_rtt-b4c1f958b2e4a40d.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-24549224b02b237e.rmeta --extern nrf52840_hal=/opt/rustwide/target/debug/deps/libnrf52840_hal-06be345d46a0c7a1.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1c32a331a082843f87c38fa6dbc1ea1f3debbc1db6f88f88192df4b785eb76e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c32a331a082843f87c38fa6dbc1ea1f3debbc1db6f88f88192df4b785eb76e4", kill_on_drop: false }`
[INFO] [stdout] 1c32a331a082843f87c38fa6dbc1ea1f3debbc1db6f88f88192df4b785eb76e4