[INFO] fetching crate quiver-qpack 0.1.1...
[INFO] documenting quiver-qpack-0.1.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate quiver-qpack 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate quiver-qpack 0.1.1 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 quiver-qpack 0.1.1
[INFO] finished tweaking crates.io crate quiver-qpack 0.1.1
[INFO] tweaked toml for crates.io crate quiver-qpack 0.1.1 written to /workspace/builds/worker-7-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]     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 bitstream-io v1.10.0
[INFO] [stderr]   Downloaded tokio-bitstream-io v0.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 5915253ee333447c300f17f191f8a3290b2e7c85cf34c1681353c747d238f364
[INFO] running `Command { std: "docker" "start" "-a" "5915253ee333447c300f17f191f8a3290b2e7c85cf34c1681353c747d238f364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5915253ee333447c300f17f191f8a3290b2e7c85cf34c1681353c747d238f364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5915253ee333447c300f17f191f8a3290b2e7c85cf34c1681353c747d238f364", kill_on_drop: false }`
[INFO] [stdout] 5915253ee333447c300f17f191f8a3290b2e7c85cf34c1681353c747d238f364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 54b3dc8d598891311ffe5f6d75ae2cfc3d223dd39b9142150cbacfebf6643465
[INFO] running `Command { std: "docker" "start" "-a" "54b3dc8d598891311ffe5f6d75ae2cfc3d223dd39b9142150cbacfebf6643465", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]     Checking bitstream-io v1.10.0
[INFO] [stderr]     Checking phf_shared v0.11.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]    Compiling quiver-qpack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking tokio-bitstream-io v0.0.7
[INFO] [stderr]  Documenting quiver-qpack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extract_if)]
[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 `quiver-qpack`
[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=2021 --crate-type lib --crate-name quiver_qpack src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6360b410ea9c99e9 -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-725ffe9fd02a1e56.so --extern bitstream_io=/opt/rustwide/target/debug/deps/libbitstream_io-b3027491ade54cf2.rmeta --extern phf=/opt/rustwide/target/debug/deps/libphf-66b8c456adbb2f14.rmeta --extern phf_shared=/opt/rustwide/target/debug/deps/libphf_shared-be5b7013eed28c91.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-641d9cd655bb2716.rmeta --extern tokio_bitstream_io=/opt/rustwide/target/debug/deps/libtokio_bitstream_io-50db6d1d3e1595b0.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "54b3dc8d598891311ffe5f6d75ae2cfc3d223dd39b9142150cbacfebf6643465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b3dc8d598891311ffe5f6d75ae2cfc3d223dd39b9142150cbacfebf6643465", kill_on_drop: false }`
[INFO] [stdout] 54b3dc8d598891311ffe5f6d75ae2cfc3d223dd39b9142150cbacfebf6643465
[INFO] documenting quiver-qpack-0.1.1 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate quiver-qpack 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate quiver-qpack 0.1.1 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 quiver-qpack 0.1.1
[INFO] finished tweaking crates.io crate quiver-qpack 0.1.1
[INFO] tweaked toml for crates.io crate quiver-qpack 0.1.1 written to /workspace/builds/worker-7-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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7181c65a66ea1c28313308031f464f5541969d1401f5a3b26e51644fbd2d17a0
[INFO] running `Command { std: "docker" "start" "-a" "7181c65a66ea1c28313308031f464f5541969d1401f5a3b26e51644fbd2d17a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7181c65a66ea1c28313308031f464f5541969d1401f5a3b26e51644fbd2d17a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7181c65a66ea1c28313308031f464f5541969d1401f5a3b26e51644fbd2d17a0", kill_on_drop: false }`
[INFO] [stdout] 7181c65a66ea1c28313308031f464f5541969d1401f5a3b26e51644fbd2d17a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3b8e1cd50ac41d9c78469a327c7da40e1453e8701b38fefe4152060c1d58579f
[INFO] running `Command { std: "docker" "start" "-a" "3b8e1cd50ac41d9c78469a327c7da40e1453e8701b38fefe4152060c1d58579f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]     Checking phf_shared v0.11.2
[INFO] [stderr]     Checking bitstream-io v1.10.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]    Compiling quiver-qpack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking tokio-bitstream-io v0.0.7
[INFO] [stderr]  Documenting quiver-qpack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extract_if)]
[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 `quiver-qpack`
[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=2021 --crate-type lib --crate-name quiver_qpack src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a1c4900e01e8f4d1 -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-ac5677ce486ba6f4.so --extern bitstream_io=/opt/rustwide/target/debug/deps/libbitstream_io-6d4c124588be80fe.rmeta --extern phf=/opt/rustwide/target/debug/deps/libphf-ac6a26b9bd4e9e73.rmeta --extern phf_shared=/opt/rustwide/target/debug/deps/libphf_shared-00c9e8e4cda69f3d.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-81925ed8ef813c38.rmeta --extern tokio_bitstream_io=/opt/rustwide/target/debug/deps/libtokio_bitstream_io-666e3bb1f12f2a3b.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3b8e1cd50ac41d9c78469a327c7da40e1453e8701b38fefe4152060c1d58579f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b8e1cd50ac41d9c78469a327c7da40e1453e8701b38fefe4152060c1d58579f", kill_on_drop: false }`
[INFO] [stdout] 3b8e1cd50ac41d9c78469a327c7da40e1453e8701b38fefe4152060c1d58579f
