[INFO] fetching crate sc2-proxy 0.1.0...
[INFO] documenting sc2-proxy-0.1.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate sc2-proxy 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate sc2-proxy 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sc2-proxy 0.1.0
[INFO] finished tweaking crates.io crate sc2-proxy 0.1.0
[INFO] tweaked toml for crates.io crate sc2-proxy 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4959cdb7e6391a0884b778d3c72ef58fc04edf325bd1a1acf7dffb081b538cbd
[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" "4959cdb7e6391a0884b778d3c72ef58fc04edf325bd1a1acf7dffb081b538cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4959cdb7e6391a0884b778d3c72ef58fc04edf325bd1a1acf7dffb081b538cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4959cdb7e6391a0884b778d3c72ef58fc04edf325bd1a1acf7dffb081b538cbd", kill_on_drop: false }`
[INFO] [stdout] 4959cdb7e6391a0884b778d3c72ef58fc04edf325bd1a1acf7dffb081b538cbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ab892171ec2c5ea0b34517297988a6fe05bd2d9522ac5339bb57df0406442f43
[INFO] running `Command { std: "docker" "start" "-a" "ab892171ec2c5ea0b34517297988a6fe05bd2d9522ac5339bb57df0406442f43", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.25.0
[INFO] [stderr]    Compiling sc2-proto v0.2.3
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking portpicker v0.1.1
[INFO] [stderr]     Checking dotenv v0.13.0
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]     Checking websocket v0.22.4
[INFO] [stderr]  Documenting sc2-proxy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(type_alias_enum_variants)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `type_alias_enum_variants` has been stable since 1.37.0 and no longer requires an attribute to enable
[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 `sc2-proxy`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name sc2_proxy 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 bufstream=/opt/rustwide/target/debug/deps/libbufstream-9410dbe44b9d9845.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-812e72e73d3c1867.rmeta --extern dotenv=/opt/rustwide/target/debug/deps/libdotenv-589ffd062cb3bee5.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f8abb66ffc16068c.rmeta --extern portpicker=/opt/rustwide/target/debug/deps/libportpicker-0f1835252a38ac8b.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-eae0907adf8d719f.rmeta --extern protobuf=/opt/rustwide/target/debug/deps/libprotobuf-eafd93777a907c54.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-46bf5b535d6b6b09.rmeta --extern sc2_proto=/opt/rustwide/target/debug/deps/libsc2_proto-180643691e4df631.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-f34436159fac0af7.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-acf63280de1cca73.rmeta --extern shellexpand=/opt/rustwide/target/debug/deps/libshellexpand-40fc6a44db533d76.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-d3ed83bd07bad38a.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-60268616b11db836.rmeta --extern websocket=/opt/rustwide/target/debug/deps/libwebsocket-2a7714432df4b0c8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ab892171ec2c5ea0b34517297988a6fe05bd2d9522ac5339bb57df0406442f43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab892171ec2c5ea0b34517297988a6fe05bd2d9522ac5339bb57df0406442f43", kill_on_drop: false }`
[INFO] [stdout] ab892171ec2c5ea0b34517297988a6fe05bd2d9522ac5339bb57df0406442f43
