[INFO] fetching crate con-art-rust 0.2.0...
[INFO] documenting con-art-rust-0.2.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate con-art-rust 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate con-art-rust 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 con-art-rust 0.2.0
[INFO] finished tweaking crates.io crate con-art-rust 0.2.0
[INFO] tweaked toml for crates.io crate con-art-rust 0.2.0 written to /workspace/builds/worker-5-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 findshlibs v0.10.2
[INFO] [stderr]   Downloaded perf-event-open-sys v4.0.0
[INFO] [stderr]   Downloaded perf-event v0.4.8
[INFO] [stderr]   Downloaded shumai-config-impl v0.1.6
[INFO] [stderr]   Downloaded radium v0.6.2
[INFO] [stderr]   Downloaded str_stack v0.1.0
[INFO] [stderr]   Downloaded debugid v0.7.3
[INFO] [stderr]   Downloaded generator v0.7.4
[INFO] [stderr]   Downloaded varmint v0.1.3
[INFO] [stderr]   Downloaded inferno v0.10.12
[INFO] [stderr]   Downloaded shuttle v0.0.7
[INFO] [stderr]   Downloaded quick-xml v0.22.0
[INFO] [stderr]   Downloaded symbolic-common v8.8.0
[INFO] [stderr]   Downloaded sysinfo v0.23.13
[INFO] [stderr]   Downloaded symbolic-demangle v8.8.0
[INFO] [stderr]   Downloaded flurry v0.3.1
[INFO] [stderr]   Downloaded pprof v0.6.1
[INFO] [stderr]   Downloaded shumai v0.1.17
[INFO] [stderr]   Downloaded bitvec v0.21.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1c4c0e2c5146cfd91ba596aed94fdf8190a6e9533a3ea7c3c8863f19e7064cb1
[INFO] running `Command { std: "docker" "start" "-a" "1c4c0e2c5146cfd91ba596aed94fdf8190a6e9533a3ea7c3c8863f19e7064cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c4c0e2c5146cfd91ba596aed94fdf8190a6e9533a3ea7c3c8863f19e7064cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4c0e2c5146cfd91ba596aed94fdf8190a6e9533a3ea7c3c8863f19e7064cb1", kill_on_drop: false }`
[INFO] [stdout] 1c4c0e2c5146cfd91ba596aed94fdf8190a6e9533a3ea7c3c8863f19e7064cb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 72524d81815cdbd121bfd81cef2a4fcab202e615a947350432fe33ed8bcc539c
[INFO] running `Command { std: "docker" "start" "-a" "72524d81815cdbd121bfd81cef2a4fcab202e615a947350432fe33ed8bcc539c", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]  Documenting con-art-rust 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:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | #![feature(core_intrinsics)]
[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 `con-art-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name con_art_rust src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=187e698e9eeef41c -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam_epoch=/opt/rustwide/target/debug/deps/libcrossbeam_epoch-f7b78dd500fe42e0.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "72524d81815cdbd121bfd81cef2a4fcab202e615a947350432fe33ed8bcc539c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72524d81815cdbd121bfd81cef2a4fcab202e615a947350432fe33ed8bcc539c", kill_on_drop: false }`
[INFO] [stdout] 72524d81815cdbd121bfd81cef2a4fcab202e615a947350432fe33ed8bcc539c
