[INFO] fetching crate shape-core 0.1.14...
[INFO] documenting shape-core-0.1.14 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate shape-core 0.1.14 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate shape-core 0.1.14 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 shape-core 0.1.14
[INFO] finished tweaking crates.io crate shape-core 0.1.14
[INFO] tweaked toml for crates.io crate shape-core 0.1.14 written to /workspace/builds/worker-3-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 color-core v0.1.6
[INFO] [stderr]   Downloaded distantia v0.0.0
[INFO] [stderr]   Downloaded wolfram-expr v0.1.4
[INFO] [stderr]   Downloaded projective 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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 361066d8810045b2390e4471da3e6d4aac91e3cda49edf6b17aa438eed962bd8
[INFO] running `Command { std: "docker" "start" "-a" "361066d8810045b2390e4471da3e6d4aac91e3cda49edf6b17aa438eed962bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "361066d8810045b2390e4471da3e6d4aac91e3cda49edf6b17aa438eed962bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "361066d8810045b2390e4471da3e6d4aac91e3cda49edf6b17aa438eed962bd8", kill_on_drop: false }`
[INFO] [stdout] 361066d8810045b2390e4471da3e6d4aac91e3cda49edf6b17aa438eed962bd8
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/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] 26dca119c6d0455d5312ce66150648af2643c821050e1a6cb55b8cfed53b3cc9
[INFO] running `Command { std: "docker" "start" "-a" "26dca119c6d0455d5312ce66150648af2643c821050e1a6cb55b8cfed53b3cc9", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking distantia v0.0.0
[INFO] [stderr]     Checking color-core v0.1.6
[INFO] [stderr]     Checking projective v0.3.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]  Documenting shape-core v0.1.14 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generators, iter_from_generator)]
[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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `shape-core`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name shape_core src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a7762a8ae4ed20cf -L dependency=/opt/rustwide/target/debug/deps --extern color_core=/opt/rustwide/target/debug/deps/libcolor_core-97ce2df1db49d140.rmeta --extern distantia=/opt/rustwide/target/debug/deps/libdistantia-7da5df41a36d5a79.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-578991b5e0b8e761.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-3906fe4936ddc04f.rmeta --extern projective=/opt/rustwide/target/debug/deps/libprojective-3bdc55d9904282f8.rmeta --cap-lints=warn --crate-version 0.1.14` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "26dca119c6d0455d5312ce66150648af2643c821050e1a6cb55b8cfed53b3cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26dca119c6d0455d5312ce66150648af2643c821050e1a6cb55b8cfed53b3cc9", kill_on_drop: false }`
[INFO] [stdout] 26dca119c6d0455d5312ce66150648af2643c821050e1a6cb55b8cfed53b3cc9
