[INFO] fetching crate gemino 0.7.0...
[INFO] documenting gemino-0.7.0 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate gemino 0.7.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate gemino 0.7.0 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gemino 0.7.0
[INFO] finished tweaking crates.io crate gemino 0.7.0
[INFO] tweaked toml for crates.io crate gemino 0.7.0 written to /workspace/builds/worker-2-tc2/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" "+beta-2023-04-20" "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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbc45ea5b7a8ffd77a1c3a267ada7ac5775e140ee2f58498874f8fdcd3d2087f
[INFO] running `Command { std: "docker" "start" "-a" "bbc45ea5b7a8ffd77a1c3a267ada7ac5775e140ee2f58498874f8fdcd3d2087f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbc45ea5b7a8ffd77a1c3a267ada7ac5775e140ee2f58498874f8fdcd3d2087f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbc45ea5b7a8ffd77a1c3a267ada7ac5775e140ee2f58498874f8fdcd3d2087f", kill_on_drop: false }`
[INFO] [stdout] bbc45ea5b7a8ffd77a1c3a267ada7ac5775e140ee2f58498874f8fdcd3d2087f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47753c42dd6a017bb0e8a5bca029246bc78a92c6743c7d1fc1729c1755874ff0
[INFO] running `Command { std: "docker" "start" "-a" "47753c42dd6a017bb0e8a5bca029246bc78a92c6743c7d1fc1729c1755874ff0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]  Documenting gemino v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #![feature(min_specialization)]
[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 `gemino`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name gemino src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9bb3254d41223bf2 -L dependency=/opt/rustwide/target/debug/deps --extern event_listener=/opt/rustwide/target/debug/deps/libevent_listener-ac90d92f8c9e90fc.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-fe8008d619629ceb.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-9ed0bd2dbf52dfc3.rmeta --cap-lints=warn --crate-version 0.7.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "47753c42dd6a017bb0e8a5bca029246bc78a92c6743c7d1fc1729c1755874ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47753c42dd6a017bb0e8a5bca029246bc78a92c6743c7d1fc1729c1755874ff0", kill_on_drop: false }`
[INFO] [stdout] 47753c42dd6a017bb0e8a5bca029246bc78a92c6743c7d1fc1729c1755874ff0
