[INFO] fetching crate lpc176x-5x 0.3.1...
[INFO] documenting lpc176x-5x-0.3.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate lpc176x-5x 0.3.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate lpc176x-5x 0.3.1 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 lpc176x-5x 0.3.1
[INFO] finished tweaking crates.io crate lpc176x-5x 0.3.1
[INFO] tweaked toml for crates.io crate lpc176x-5x 0.3.1 written to /workspace/builds/worker-4-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f1da83f0cae7df704dcdeac164d478d222a3c602f1da844824b1b1ddc34add24
[INFO] running `Command { std: "docker" "start" "-a" "f1da83f0cae7df704dcdeac164d478d222a3c602f1da844824b1b1ddc34add24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1da83f0cae7df704dcdeac164d478d222a3c602f1da844824b1b1ddc34add24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1da83f0cae7df704dcdeac164d478d222a3c602f1da844824b1b1ddc34add24", kill_on_drop: false }`
[INFO] [stdout] f1da83f0cae7df704dcdeac164d478d222a3c602f1da844824b1b1ddc34add24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d228f4cae7ee1578ed087fcb8f704f9d69f5ff53def28c79e427f2f0653d009d
[INFO] running `Command { std: "docker" "start" "-a" "d228f4cae7ee1578ed087fcb8f704f9d69f5ff53def28c79e427f2f0653d009d", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]    Compiling lpc176x-5x v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr]  Documenting lpc176x-5x v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![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 `lpc176x-5x`
[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 --edition=2018 --crate-type lib --crate-name lpc176x_5x src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a95c10b1701a5704 -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 0.3.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d228f4cae7ee1578ed087fcb8f704f9d69f5ff53def28c79e427f2f0653d009d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d228f4cae7ee1578ed087fcb8f704f9d69f5ff53def28c79e427f2f0653d009d", kill_on_drop: false }`
[INFO] [stdout] d228f4cae7ee1578ed087fcb8f704f9d69f5ff53def28c79e427f2f0653d009d
[INFO] documenting lpc176x-5x-0.3.1 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate lpc176x-5x 0.3.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate lpc176x-5x 0.3.1 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 lpc176x-5x 0.3.1
[INFO] finished tweaking crates.io crate lpc176x-5x 0.3.1
[INFO] tweaked toml for crates.io crate lpc176x-5x 0.3.1 written to /workspace/builds/worker-4-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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] de6133ba02da3d32244a5446f4e9e9cd396390655876324ef4f82385d714c509
[INFO] running `Command { std: "docker" "start" "-a" "de6133ba02da3d32244a5446f4e9e9cd396390655876324ef4f82385d714c509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de6133ba02da3d32244a5446f4e9e9cd396390655876324ef4f82385d714c509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de6133ba02da3d32244a5446f4e9e9cd396390655876324ef4f82385d714c509", kill_on_drop: false }`
[INFO] [stdout] de6133ba02da3d32244a5446f4e9e9cd396390655876324ef4f82385d714c509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d2a6f817d150309b9f7af533ac83c443a8539ea063b94197e363e5f97ee7c9fb
[INFO] running `Command { std: "docker" "start" "-a" "d2a6f817d150309b9f7af533ac83c443a8539ea063b94197e363e5f97ee7c9fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]    Compiling lpc176x-5x v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr]  Documenting lpc176x-5x v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![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 `lpc176x-5x`
[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 --edition=2018 --crate-type lib --crate-name lpc176x_5x src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1f860308fcd8adac -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 0.3.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d2a6f817d150309b9f7af533ac83c443a8539ea063b94197e363e5f97ee7c9fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a6f817d150309b9f7af533ac83c443a8539ea063b94197e363e5f97ee7c9fb", kill_on_drop: false }`
[INFO] [stdout] d2a6f817d150309b9f7af533ac83c443a8539ea063b94197e363e5f97ee7c9fb
