[INFO] fetching crate tari_service_framework 0.2.3...
[INFO] documenting tari_service_framework-0.2.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate tari_service_framework 0.2.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate tari_service_framework 0.2.3 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tari_service_framework 0.2.3
[INFO] finished tweaking crates.io crate tari_service_framework 0.2.3
[INFO] tweaked toml for crates.io crate tari_service_framework 0.2.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b85341abcbf2762baaa0d297f0cba8f406d4c0a196c5db369c9e7cfdccb0ce2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5b85341abcbf2762baaa0d297f0cba8f406d4c0a196c5db369c9e7cfdccb0ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b85341abcbf2762baaa0d297f0cba8f406d4c0a196c5db369c9e7cfdccb0ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b85341abcbf2762baaa0d297f0cba8f406d4c0a196c5db369c9e7cfdccb0ce2", kill_on_drop: false }`
[INFO] [stdout] 5b85341abcbf2762baaa0d297f0cba8f406d4c0a196c5db369c9e7cfdccb0ce2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9683cd53b00b77e7e9a09e1f598e2d400f7a03abcb83a08460cbeff2fdead96a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9683cd53b00b77e7e9a09e1f598e2d400f7a03abcb83a08460cbeff2fdead96a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking tari_shutdown v0.2.3
[INFO] [stderr]  Documenting tari_service_framework v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[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 `tari_service_framework`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name tari_service_framework src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern futures=/opt/rustwide/target/debug/deps/libfutures-bda2bc12266426ee.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-75d540134d633bf3.rmeta --extern tari_shutdown=/opt/rustwide/target/debug/deps/libtari_shutdown-d2a2d6ad9071e557.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-23896480d603bc98.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-1ff0ef0de7202797.rmeta --extern tower_service=/opt/rustwide/target/debug/deps/libtower_service-1745b3499300a411.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "9683cd53b00b77e7e9a09e1f598e2d400f7a03abcb83a08460cbeff2fdead96a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9683cd53b00b77e7e9a09e1f598e2d400f7a03abcb83a08460cbeff2fdead96a", kill_on_drop: false }`
[INFO] [stdout] 9683cd53b00b77e7e9a09e1f598e2d400f7a03abcb83a08460cbeff2fdead96a