[INFO] fetching crate abe 0.2.0...
[INFO] documenting abe-0.2.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate abe 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate abe 0.2.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate abe 0.2.0
[INFO] finished tweaking crates.io crate abe 0.2.0
[INFO] tweaked toml for crates.io crate abe 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hex v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15712c4304c7efe52fa1c44d3648cdb2d65a3d8bbd4b6b29ed067e9407bfc6cd
[INFO] running `Command { std: "docker" "start" "-a" "15712c4304c7efe52fa1c44d3648cdb2d65a3d8bbd4b6b29ed067e9407bfc6cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15712c4304c7efe52fa1c44d3648cdb2d65a3d8bbd4b6b29ed067e9407bfc6cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15712c4304c7efe52fa1c44d3648cdb2d65a3d8bbd4b6b29ed067e9407bfc6cd", kill_on_drop: false }`
[INFO] [stdout] 15712c4304c7efe52fa1c44d3648cdb2d65a3d8bbd4b6b29ed067e9407bfc6cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2be933330b1ab8ca4d467e51f86f66d11024a74611f99804a38d01752af1e789
[INFO] running `Command { std: "docker" "start" "-a" "2be933330b1ab8ca4d467e51f86f66d11024a74611f99804a38d01752af1e789", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]  Documenting abe v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | / #![feature(
[INFO] [stdout] 7  | |     split_as_slice,
[INFO] [stdout] 8  | |     split_array,
[INFO] [stdout] 9  | |     try_trait_v2,
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     bigint_helper_methods
[INFO] [stdout] 15 | | )]
[INFO] [stdout]    | |__^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `abe`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name abe src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=bec5740a6ed9581c -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-3570d1a0a25354c2.rmeta --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-78b01ec076031942.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-7658a505e7fe0549.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-7f5aa0c9c57e86c5.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b839f3f80c6bc09b.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2be933330b1ab8ca4d467e51f86f66d11024a74611f99804a38d01752af1e789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2be933330b1ab8ca4d467e51f86f66d11024a74611f99804a38d01752af1e789", kill_on_drop: false }`
[INFO] [stdout] 2be933330b1ab8ca4d467e51f86f66d11024a74611f99804a38d01752af1e789
