[INFO] fetching crate ky-sync 0.1.0...
[INFO] documenting ky-sync-0.1.0 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate ky-sync 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ky-sync 0.1.0 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 ky-sync 0.1.0
[INFO] finished tweaking crates.io crate ky-sync 0.1.0
[INFO] tweaked toml for crates.io crate ky-sync 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate ky-sync 0.1.0 already has a lockfile, it will not be regenerated
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple_logger v2.1.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.73
[INFO] [stderr]   Downloaded proc-macro2 v1.0.38
[INFO] [stderr]   Downloaded syn v1.0.94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f56d96fe735c570d870c3cc85ebe6525dce7742d3e8d4af8c06ff3c1f6b10873
[INFO] running `Command { std: "docker" "start" "-a" "f56d96fe735c570d870c3cc85ebe6525dce7742d3e8d4af8c06ff3c1f6b10873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f56d96fe735c570d870c3cc85ebe6525dce7742d3e8d4af8c06ff3c1f6b10873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f56d96fe735c570d870c3cc85ebe6525dce7742d3e8d4af8c06ff3c1f6b10873", kill_on_drop: false }`
[INFO] [stdout] f56d96fe735c570d870c3cc85ebe6525dce7742d3e8d4af8c06ff3c1f6b10873
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 81223aa406e7806edb3f1b74f1f9a5d6dcc4100583f43a4d1c3d3a382689f677
[INFO] running `Command { std: "docker" "start" "-a" "81223aa406e7806edb3f1b74f1f9a5d6dcc4100583f43a4d1c3d3a382689f677", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking http v0.2.7
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.73
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking simple_logger v2.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]     Checking tokio v1.18.2
[INFO] [stderr]     Checking futures-util v0.3.21
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-util v0.7.2
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.18
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]  Documenting ky-sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[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 `ky-sync`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name ky_sync src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=c3d351f2bc3341db -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-403aa87663ec3477.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-3ff2dcaec82f87b7.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-0ffd4f895aaa2368.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-35fef88997af0fd0.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-0303f6e26e105782.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-2dc7b45d14fa355a.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-a2dfab680198df80.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-f01d30aaea734bad.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "81223aa406e7806edb3f1b74f1f9a5d6dcc4100583f43a4d1c3d3a382689f677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81223aa406e7806edb3f1b74f1f9a5d6dcc4100583f43a4d1c3d3a382689f677", kill_on_drop: false }`
[INFO] [stdout] 81223aa406e7806edb3f1b74f1f9a5d6dcc4100583f43a4d1c3d3a382689f677
