[INFO] fetching crate darjeeling 0.3.4...
[INFO] documenting darjeeling-0.3.4 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate darjeeling 0.3.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate darjeeling 0.3.4 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] started tweaking crates.io crate darjeeling 0.3.4
[INFO] finished tweaking crates.io crate darjeeling 0.3.4
[INFO] tweaked toml for crates.io crate darjeeling 0.3.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ascii_converter v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bbacdde8934f11410e3c614d6989a308e43a5531124237056b01b1a48d2cc2d
[INFO] running `Command { std: "docker" "start" "-a" "3bbacdde8934f11410e3c614d6989a308e43a5531124237056b01b1a48d2cc2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bbacdde8934f11410e3c614d6989a308e43a5531124237056b01b1a48d2cc2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bbacdde8934f11410e3c614d6989a308e43a5531124237056b01b1a48d2cc2d", kill_on_drop: false }`
[INFO] [stdout] 3bbacdde8934f11410e3c614d6989a308e43a5531124237056b01b1a48d2cc2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a7db8972f2fe012064cc49ff8ef9146f9adb08a5d5ebafcd88529dbf64fcaac
[INFO] running `Command { std: "docker" "start" "-a" "9a7db8972f2fe012064cc49ff8ef9146f9adb08a5d5ebafcd88529dbf64fcaac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking ascii_converter v0.3.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]     Checking serde_json v1.0.113
[INFO] [stderr]  Documenting darjeeling v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(core_intrinsics)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(iter_collect_into, try_blocks)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]   --> src/lib.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(core_intrinsics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: using it is strongly discouraged
[INFO] [stdout]    = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `darjeeling`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name darjeeling src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=dbe8e09b5486e60f -L dependency=/opt/rustwide/target/debug/deps --extern ascii_converter=/opt/rustwide/target/debug/deps/libascii_converter-2f6b19c8fc0e5015.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-780e419cd85b919a.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-cc0e243b6c53ea48.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-f81ccc6220d80f4e.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f64eecf75494187.rmeta --cap-lints=warn --crate-version 0.3.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9a7db8972f2fe012064cc49ff8ef9146f9adb08a5d5ebafcd88529dbf64fcaac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a7db8972f2fe012064cc49ff8ef9146f9adb08a5d5ebafcd88529dbf64fcaac", kill_on_drop: false }`
[INFO] [stdout] 9a7db8972f2fe012064cc49ff8ef9146f9adb08a5d5ebafcd88529dbf64fcaac
