[INFO] fetching crate erdos 0.4.0...
[INFO] documenting erdos-0.4.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate erdos 0.4.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate erdos 0.4.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate erdos 0.4.0
[INFO] finished tweaking crates.io crate erdos 0.4.0
[INFO] tweaked toml for crates.io crate erdos 0.4.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded abomonation_derive v0.5.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b510e6ae2fc8ece7186a44bf7534c22b2b8109df5a1ae1d6610ff055bb7f600e
[INFO] running `Command { std: "docker" "start" "-a" "b510e6ae2fc8ece7186a44bf7534c22b2b8109df5a1ae1d6610ff055bb7f600e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b510e6ae2fc8ece7186a44bf7534c22b2b8109df5a1ae1d6610ff055bb7f600e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b510e6ae2fc8ece7186a44bf7534c22b2b8109df5a1ae1d6610ff055bb7f600e", kill_on_drop: false }`
[INFO] [stdout] b510e6ae2fc8ece7186a44bf7534c22b2b8109df5a1ae1d6610ff055bb7f600e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22a70f9eccb098ca3ce20dfc751de398d0c7482864656fde063063d4406669df
[INFO] running `Command { std: "docker" "start" "-a" "22a70f9eccb098ca3ce20dfc751de398d0c7482864656fde063063d4406669df", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
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[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
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[INFO] [stderr]    Compiling autocfg v0.1.8
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[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking tracing-core v0.1.32
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[INFO] [stderr]     Checking futures-lite v2.2.0
[INFO] [stderr]     Checking rand_core v0.3.1
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[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
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[INFO] [stderr]     Checking deranged v0.3.11
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[INFO] [stderr]     Checking event-listener v4.0.3
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[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.4
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[INFO] [stderr]     Checking abomonation v0.7.3
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[INFO] [stderr]     Checking parking_lot v0.11.2
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[INFO] [stderr]     Checking mio v0.8.10
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[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking futures-intrusive v0.4.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.3.31
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking tokio-serde v0.3.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing-appender v0.2.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking polling v3.3.1
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking async-io v2.2.2
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures-delay-queue v0.4.2
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking tokio-serde-bincode v0.2.1
[INFO] [stderr]  Documenting erdos v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:139:1
[INFO] [stdout]     |
[INFO] [stdout] 139 | #![feature(specialization)]
[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:140:1
[INFO] [stdout]     |
[INFO] [stdout] 140 | #![feature(box_into_pin)]
[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 `erdos`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name erdos 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=d9e6a1072bcdabaa -L dependency=/opt/rustwide/target/debug/deps --extern abomonation=/opt/rustwide/target/debug/deps/libabomonation-22c730bc3174b443.rmeta --extern abomonation_derive=/opt/rustwide/target/debug/deps/libabomonation_derive-1142167c8915ebd9.so --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-11ed08d61893e9ac.so --extern bincode=/opt/rustwide/target/debug/deps/libbincode-7d7bec1be263f844.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-7620dcb02882a88c.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-19782e77171d7466.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-d4948ef7bb2fc624.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-35c305cf01d859c3.rmeta --extern futures_delay_queue=/opt/rustwide/target/debug/deps/libfutures_delay_queue-77c85b351e6aa37b.rmeta --extern futures_intrusive=/opt/rustwide/target/debug/deps/libfutures_intrusive-bd2ee372209b4ed0.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-2a555b0233748293.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-94384e5ea6a973b7.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-4858660bf2c4aced.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-9cacfa1f2a6fa713.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-3677ff5ef13c4505.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-cdbee05af1e5abe6.rmeta --extern tokio_serde_bincode=/opt/rustwide/target/debug/deps/libtokio_serde_bincode-a913c0ad3c6a1547.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-d5e3c944eb34d322.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-2c3c3c16626aa78c.rmeta --extern tracing_appender=/opt/rustwide/target/debug/deps/libtracing_appender-3bad42e3370100b5.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-0c9c5986e49e27a3.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-12d8551dda6516e6.rmeta --cap-lints=warn --crate-version 0.4.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "22a70f9eccb098ca3ce20dfc751de398d0c7482864656fde063063d4406669df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22a70f9eccb098ca3ce20dfc751de398d0c7482864656fde063063d4406669df", kill_on_drop: false }`
[INFO] [stdout] 22a70f9eccb098ca3ce20dfc751de398d0c7482864656fde063063d4406669df
[INFO] documenting erdos-0.4.0 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate erdos 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate erdos 0.4.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate erdos 0.4.0
[INFO] finished tweaking crates.io crate erdos 0.4.0
[INFO] tweaked toml for crates.io crate erdos 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9ce29dee2865d4c9b3678baa3b234d06e1703d6a60ef4c2c9e1660452a1d4e3
[INFO] running `Command { std: "docker" "start" "-a" "b9ce29dee2865d4c9b3678baa3b234d06e1703d6a60ef4c2c9e1660452a1d4e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9ce29dee2865d4c9b3678baa3b234d06e1703d6a60ef4c2c9e1660452a1d4e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ce29dee2865d4c9b3678baa3b234d06e1703d6a60ef4c2c9e1660452a1d4e3", kill_on_drop: false }`
[INFO] [stdout] b9ce29dee2865d4c9b3678baa3b234d06e1703d6a60ef4c2c9e1660452a1d4e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2bd6bbe5376d59003b23e6a0cd9bc1dac35bc41262002d0fd22fcbf403bbfa1
[INFO] running `Command { std: "docker" "start" "-a" "b2bd6bbe5376d59003b23e6a0cd9bc1dac35bc41262002d0fd22fcbf403bbfa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking value-bag v1.4.3
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking futures-lite v2.2.0
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[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
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[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking futures-intrusive v0.4.2
[INFO] [stderr]     Checking tokio-serde v0.3.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing-appender v0.2.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking polling v3.3.1
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking async-io v2.2.2
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking futures-delay-queue v0.4.2
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking tokio-serde-bincode v0.2.1
[INFO] [stderr]  Documenting erdos v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:139:1
[INFO] [stdout]     |
[INFO] [stdout] 139 | #![feature(specialization)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:140:1
[INFO] [stdout]     |
[INFO] [stdout] 140 | #![feature(box_into_pin)]
[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 `erdos`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name erdos 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=e2d71f96affb318b -L dependency=/opt/rustwide/target/debug/deps --extern abomonation=/opt/rustwide/target/debug/deps/libabomonation-0b66292a63c18d75.rmeta --extern abomonation_derive=/opt/rustwide/target/debug/deps/libabomonation_derive-75a9696233df38d9.so --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-2dd76977419d639d.so --extern bincode=/opt/rustwide/target/debug/deps/libbincode-ed2da305c560e1ee.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-00fe54c7ebcff226.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-c0a5d3e6d3fe5695.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-0c9687a17ea8bb02.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3ae60c78dc5f8730.rmeta --extern futures_delay_queue=/opt/rustwide/target/debug/deps/libfutures_delay_queue-0447774a3b69853f.rmeta --extern futures_intrusive=/opt/rustwide/target/debug/deps/libfutures_intrusive-b1b41820201c0f3b.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-3dec0ba6c622fb83.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-6fb0ab44501d538d.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-ed816bbfe419a4cd.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-b9cda79324f3fd37.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-c4dba4233f8f841d.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-c5b7d29940e94f01.rmeta --extern tokio_serde_bincode=/opt/rustwide/target/debug/deps/libtokio_serde_bincode-42d13d3eeca87fb8.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-fe532d7c756360ef.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-caaf62db2815e019.rmeta --extern tracing_appender=/opt/rustwide/target/debug/deps/libtracing_appender-bf5fae3847afdc0e.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-b18955bf9accf812.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-c90e3a7cd7876273.rmeta --cap-lints=warn --crate-version 0.4.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "b2bd6bbe5376d59003b23e6a0cd9bc1dac35bc41262002d0fd22fcbf403bbfa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2bd6bbe5376d59003b23e6a0cd9bc1dac35bc41262002d0fd22fcbf403bbfa1", kill_on_drop: false }`
[INFO] [stdout] b2bd6bbe5376d59003b23e6a0cd9bc1dac35bc41262002d0fd22fcbf403bbfa1
