[INFO] fetching crate phlow 1.5.0...
[INFO] documenting phlow-1.5.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate phlow 1.5.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate phlow 1.5.0 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 phlow 1.5.0
[INFO] finished tweaking crates.io crate phlow 1.5.0
[INFO] tweaked toml for crates.io crate phlow 1.5.0 written to /workspace/builds/worker-5-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 typetag-impl v0.2.15
[INFO] [stderr]   Downloaded unique_id v0.1.5
[INFO] [stderr]   Downloaded typetag v0.2.15
[INFO] [stderr]   Downloaded phlow-derive v1.4.0
[INFO] [stderr]   Downloaded rust-format v0.3.4
[INFO] [stderr]   Downloaded blob-uuid v0.5.0
[INFO] [stderr]   Downloaded inventory v0.3.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 990a339064b205e79df6ce354dfc9db44347d4a8db8459b1b24c4a4ffba8d479
[INFO] running `Command { std: "docker" "start" "-a" "990a339064b205e79df6ce354dfc9db44347d4a8db8459b1b24c4a4ffba8d479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "990a339064b205e79df6ce354dfc9db44347d4a8db8459b1b24c4a4ffba8d479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "990a339064b205e79df6ce354dfc9db44347d4a8db8459b1b24c4a4ffba8d479", kill_on_drop: false }`
[INFO] [stdout] 990a339064b205e79df6ce354dfc9db44347d4a8db8459b1b24c4a4ffba8d479
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 59da74faacea07df1410c77ba207387682a7889177e9ce4c00347891a74d474c
[INFO] running `Command { std: "docker" "start" "-a" "59da74faacea07df1410c77ba207387682a7889177e9ce4c00347891a74d474c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling rust-format v0.3.4
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling phlow-derive v1.4.0
[INFO] [stderr]  Documenting phlow v1.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(feature = "printing", feature(specialization))]
[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 `phlow`
[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=2021 --crate-type lib --crate-name phlow src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="phlow-derive"' --cfg 'feature="printing"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=60d6dc95bdcf4f55 -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-c2b9fe8f0bb60ac5.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-13f2a7f9ca60e4f4.rmeta --extern phlow_derive=/opt/rustwide/target/debug/deps/libphlow_derive-51ddeee577ecbfb1.so --cap-lints=warn --crate-version 1.5.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "59da74faacea07df1410c77ba207387682a7889177e9ce4c00347891a74d474c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59da74faacea07df1410c77ba207387682a7889177e9ce4c00347891a74d474c", kill_on_drop: false }`
[INFO] [stdout] 59da74faacea07df1410c77ba207387682a7889177e9ce4c00347891a74d474c
[INFO] documenting phlow-1.5.0 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate phlow 1.5.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate phlow 1.5.0 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 phlow 1.5.0
[INFO] finished tweaking crates.io crate phlow 1.5.0
[INFO] tweaked toml for crates.io crate phlow 1.5.0 written to /workspace/builds/worker-5-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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f249376758d8ed435668785ce7c030658dbe9931c199ff9c9b40163b9fbfaa8c
[INFO] running `Command { std: "docker" "start" "-a" "f249376758d8ed435668785ce7c030658dbe9931c199ff9c9b40163b9fbfaa8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f249376758d8ed435668785ce7c030658dbe9931c199ff9c9b40163b9fbfaa8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f249376758d8ed435668785ce7c030658dbe9931c199ff9c9b40163b9fbfaa8c", kill_on_drop: false }`
[INFO] [stdout] f249376758d8ed435668785ce7c030658dbe9931c199ff9c9b40163b9fbfaa8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 470a1e414b33fb06e690c4eef29aea20d9459a7995aa9affa78351759f5ec5fe
[INFO] running `Command { std: "docker" "start" "-a" "470a1e414b33fb06e690c4eef29aea20d9459a7995aa9affa78351759f5ec5fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling rust-format v0.3.4
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling phlow-derive v1.4.0
[INFO] [stderr]  Documenting phlow v1.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(feature = "printing", feature(specialization))]
[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 `phlow`
[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=2021 --crate-type lib --crate-name phlow src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="phlow-derive"' --cfg 'feature="printing"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=626d75e628b03a0f -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-253dd6813867a002.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-3f4a6a2a6c62aea6.rmeta --extern phlow_derive=/opt/rustwide/target/debug/deps/libphlow_derive-f1674c95a62abc72.so --cap-lints=warn --crate-version 1.5.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "470a1e414b33fb06e690c4eef29aea20d9459a7995aa9affa78351759f5ec5fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "470a1e414b33fb06e690c4eef29aea20d9459a7995aa9affa78351759f5ec5fe", kill_on_drop: false }`
[INFO] [stdout] 470a1e414b33fb06e690c4eef29aea20d9459a7995aa9affa78351759f5ec5fe
