[INFO] fetching crate tokio-resource-pool 0.5.0-alpha.1...
[INFO] documenting tokio-resource-pool-0.5.0-alpha.1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate tokio-resource-pool 0.5.0-alpha.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate tokio-resource-pool 0.5.0-alpha.1 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-resource-pool 0.5.0-alpha.1
[INFO] finished tweaking crates.io crate tokio-resource-pool 0.5.0-alpha.1
[INFO] tweaked toml for crates.io crate tokio-resource-pool 0.5.0-alpha.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-sync v0.2.0-alpha.6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2240103cb0beb9d9fc9d40ae2ecaf817bdf2cb9efdc1b8a9d19b6fa6e576309d
[INFO] running `Command { std: "docker" "start" "-a" "2240103cb0beb9d9fc9d40ae2ecaf817bdf2cb9efdc1b8a9d19b6fa6e576309d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2240103cb0beb9d9fc9d40ae2ecaf817bdf2cb9efdc1b8a9d19b6fa6e576309d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2240103cb0beb9d9fc9d40ae2ecaf817bdf2cb9efdc1b8a9d19b6fa6e576309d", kill_on_drop: false }`
[INFO] [stdout] 2240103cb0beb9d9fc9d40ae2ecaf817bdf2cb9efdc1b8a9d19b6fa6e576309d
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e1cfa7d79e7e2395865a1cfab53f67b6185659c450d3e5dbb309b99fc8b6f4f
[INFO] running `Command { std: "docker" "start" "-a" "1e1cfa7d79e7e2395865a1cfab53f67b6185659c450d3e5dbb309b99fc8b6f4f", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.6
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]  Documenting tokio-resource-pool v0.5.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:136:1
[INFO] [stdout]     |
[INFO] [stdout] 136 | #![feature(associated_type_defaults)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `tokio-resource-pool`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name tokio_resource_pool src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d6ecba9aca005106 -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam_queue=/opt/rustwide/target/debug/deps/libcrossbeam_queue-00d44a7fd366df19.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-6a4030cb55c32c61.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-c2b9fe8f0bb60ac5.rmeta --extern tokio_sync=/opt/rustwide/target/debug/deps/libtokio_sync-1f0d46129874728f.rmeta --cap-lints=warn --crate-version 0.5.0-alpha.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1e1cfa7d79e7e2395865a1cfab53f67b6185659c450d3e5dbb309b99fc8b6f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1cfa7d79e7e2395865a1cfab53f67b6185659c450d3e5dbb309b99fc8b6f4f", kill_on_drop: false }`
[INFO] [stdout] 1e1cfa7d79e7e2395865a1cfab53f67b6185659c450d3e5dbb309b99fc8b6f4f
[INFO] documenting tokio-resource-pool-0.5.0-alpha.1 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate tokio-resource-pool 0.5.0-alpha.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate tokio-resource-pool 0.5.0-alpha.1 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-resource-pool 0.5.0-alpha.1
[INFO] finished tweaking crates.io crate tokio-resource-pool 0.5.0-alpha.1
[INFO] tweaked toml for crates.io crate tokio-resource-pool 0.5.0-alpha.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "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-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b82dafc736e6aec05c2435467d06c15dcc3fc4866bedef25abd737fc45fd039
[INFO] running `Command { std: "docker" "start" "-a" "2b82dafc736e6aec05c2435467d06c15dcc3fc4866bedef25abd737fc45fd039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b82dafc736e6aec05c2435467d06c15dcc3fc4866bedef25abd737fc45fd039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b82dafc736e6aec05c2435467d06c15dcc3fc4866bedef25abd737fc45fd039", kill_on_drop: false }`
[INFO] [stdout] 2b82dafc736e6aec05c2435467d06c15dcc3fc4866bedef25abd737fc45fd039
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3aeb4c8c652d95322a24c6e065275c00b60b7a36a028d8dd46c80d37bbf4604
[INFO] running `Command { std: "docker" "start" "-a" "f3aeb4c8c652d95322a24c6e065275c00b60b7a36a028d8dd46c80d37bbf4604", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.6
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]  Documenting tokio-resource-pool v0.5.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:136:1
[INFO] [stdout]     |
[INFO] [stdout] 136 | #![feature(associated_type_defaults)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `tokio-resource-pool`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name tokio_resource_pool src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ca8057e39e2c0061 -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam_queue=/opt/rustwide/target/debug/deps/libcrossbeam_queue-70fd852552a7a242.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-1fdb9969d2d614a1.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-253dd6813867a002.rmeta --extern tokio_sync=/opt/rustwide/target/debug/deps/libtokio_sync-efe6d11d0a55b299.rmeta --cap-lints=warn --crate-version 0.5.0-alpha.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f3aeb4c8c652d95322a24c6e065275c00b60b7a36a028d8dd46c80d37bbf4604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3aeb4c8c652d95322a24c6e065275c00b60b7a36a028d8dd46c80d37bbf4604", kill_on_drop: false }`
[INFO] [stdout] f3aeb4c8c652d95322a24c6e065275c00b60b7a36a028d8dd46c80d37bbf4604
