[INFO] fetching crate grass_compiler 0.12.3...
[INFO] documenting grass_compiler-0.12.3 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate grass_compiler 0.12.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate grass_compiler 0.12.3 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 grass_compiler 0.12.3
[INFO] finished tweaking crates.io crate grass_compiler 0.12.3
[INFO] tweaked toml for crates.io crate grass_compiler 0.12.3 written to /workspace/builds/worker-4-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 codemap v0.1.3
[INFO] [stderr]   Downloaded lasso v0.6.0
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72a005bfad6581036d7acdd1a15b26d9fd8d93e4eae9f4672131283fae3e9c9e
[INFO] running `Command { std: "docker" "start" "-a" "72a005bfad6581036d7acdd1a15b26d9fd8d93e4eae9f4672131283fae3e9c9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72a005bfad6581036d7acdd1a15b26d9fd8d93e4eae9f4672131283fae3e9c9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a005bfad6581036d7acdd1a15b26d9fd8d93e4eae9f4672131283fae3e9c9e", kill_on_drop: false }`
[INFO] [stdout] 72a005bfad6581036d7acdd1a15b26d9fd8d93e4eae9f4672131283fae3e9c9e
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/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] ce671f02ddb290c7686f74d3ec437f04437ed9f0e61b6a1017a9fd80de31172e
[INFO] running `Command { std: "docker" "start" "-a" "ce671f02ddb290c7686f74d3ec437f04437ed9f0e61b6a1017a9fd80de31172e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking codemap v0.1.3
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking lasso v0.6.0
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]  Documenting grass_compiler v0.12.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | #![cfg_attr(doc, feature(doc_cfg))]
[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 `grass_compiler`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name grass_compiler src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="custom-builtin-fns"' --cfg 'feature="default"' --cfg 'feature="rand"' --cfg 'feature="random"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e0f94858d25fdd5f -L dependency=/opt/rustwide/target/debug/deps --extern codemap=/opt/rustwide/target/debug/deps/libcodemap-e508ed92c361e14f.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-c4694b1f37940f3c.rmeta --extern lasso=/opt/rustwide/target/debug/deps/liblasso-0f054d8289e82798.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-7f6943baeb2ea0e0.rmeta --extern phf=/opt/rustwide/target/debug/deps/libphf-86e709ec8cd06884.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-f04d41ba3ada5685.rmeta --cap-lints=warn --crate-version 0.12.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ce671f02ddb290c7686f74d3ec437f04437ed9f0e61b6a1017a9fd80de31172e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce671f02ddb290c7686f74d3ec437f04437ed9f0e61b6a1017a9fd80de31172e", kill_on_drop: false }`
[INFO] [stdout] ce671f02ddb290c7686f74d3ec437f04437ed9f0e61b6a1017a9fd80de31172e
