[INFO] fetching crate nrf52840 0.2.0...
[INFO] documenting nrf52840-0.2.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate nrf52840 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate nrf52840 0.2.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nrf52840 0.2.0
[INFO] finished tweaking crates.io crate nrf52840 0.2.0
[INFO] tweaked toml for crates.io crate nrf52840 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aligned v0.2.0
[INFO] [stderr]   Downloaded cortex-m v0.5.11
[INFO] [stderr]   Downloaded cortex-m-rt v0.5.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 347101805d8f9daa29a019562ed27afe4199824cae3404555f9b0642722f5f76
[INFO] running `Command { std: "docker" "start" "-a" "347101805d8f9daa29a019562ed27afe4199824cae3404555f9b0642722f5f76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "347101805d8f9daa29a019562ed27afe4199824cae3404555f9b0642722f5f76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "347101805d8f9daa29a019562ed27afe4199824cae3404555f9b0642722f5f76", kill_on_drop: false }`
[INFO] [stdout] 347101805d8f9daa29a019562ed27afe4199824cae3404555f9b0642722f5f76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1c55921c63bcc33f17e132b0580a070b92b81ede44014160199dfeac3dd78c1
[INFO] running `Command { std: "docker" "start" "-a" "d1c55921c63bcc33f17e132b0580a070b92b81ede44014160199dfeac3dd78c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling nrf52840 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting nrf52840 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(untagged_unions)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `nrf52840`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --crate-type lib --crate-name nrf52840 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a844877f6fa62057 -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-f6ae8502ef51cb54.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-b1f350c5680c27bc.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-5e6889330999fcf0.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d1c55921c63bcc33f17e132b0580a070b92b81ede44014160199dfeac3dd78c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c55921c63bcc33f17e132b0580a070b92b81ede44014160199dfeac3dd78c1", kill_on_drop: false }`
[INFO] [stdout] d1c55921c63bcc33f17e132b0580a070b92b81ede44014160199dfeac3dd78c1
[INFO] documenting nrf52840-0.2.0 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate nrf52840 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate nrf52840 0.2.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nrf52840 0.2.0
[INFO] finished tweaking crates.io crate nrf52840 0.2.0
[INFO] tweaked toml for crates.io crate nrf52840 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] def86da9f3efa12c382fee44933be30b405b27e45a9e76cd9151339605c32cc9
[INFO] running `Command { std: "docker" "start" "-a" "def86da9f3efa12c382fee44933be30b405b27e45a9e76cd9151339605c32cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "def86da9f3efa12c382fee44933be30b405b27e45a9e76cd9151339605c32cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def86da9f3efa12c382fee44933be30b405b27e45a9e76cd9151339605c32cc9", kill_on_drop: false }`
[INFO] [stdout] def86da9f3efa12c382fee44933be30b405b27e45a9e76cd9151339605c32cc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db057e63a7d5bc177fd9273bc6dd43b347e7115060359f7689776149e183286b
[INFO] running `Command { std: "docker" "start" "-a" "db057e63a7d5bc177fd9273bc6dd43b347e7115060359f7689776149e183286b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling nrf52840 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting nrf52840 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(untagged_unions)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `nrf52840`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --crate-type lib --crate-name nrf52840 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=dd1bc8122c4c5cb5 -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-017a730f49b08101.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-ab36c5233031e52b.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-2353ee7572f60a32.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "db057e63a7d5bc177fd9273bc6dd43b347e7115060359f7689776149e183286b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db057e63a7d5bc177fd9273bc6dd43b347e7115060359f7689776149e183286b", kill_on_drop: false }`
[INFO] [stdout] db057e63a7d5bc177fd9273bc6dd43b347e7115060359f7689776149e183286b
