[INFO] fetching crate sc2-proxy 0.1.0...
[INFO] documenting sc2-proxy-0.1.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate sc2-proxy 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sc2-proxy 0.1.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", 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] 2c69d71f92489cbea133258a194e4399c6af56431f13607f5cb8879791422ca3
[INFO] running `Command { std: "docker" "start" "-a" "2c69d71f92489cbea133258a194e4399c6af56431f13607f5cb8879791422ca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c69d71f92489cbea133258a194e4399c6af56431f13607f5cb8879791422ca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c69d71f92489cbea133258a194e4399c6af56431f13607f5cb8879791422ca3", kill_on_drop: false }`
[INFO] [stdout] 2c69d71f92489cbea133258a194e4399c6af56431f13607f5cb8879791422ca3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 884195b81d9016daa3b8c9628897d4ac9e81e9c7961507250625d5d26ba75d57
[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" "884195b81d9016daa3b8c9628897d4ac9e81e9c7961507250625d5d26ba75d57", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.18.0
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking portpicker v0.1.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking dotenv v0.13.0
[INFO] [stderr]     Checking shellexpand v1.1.1
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling thiserror v1.0.21
[INFO] [stderr]    Compiling which v4.0.2
[INFO] [stderr]     Checking websocket v0.22.4
[INFO] [stderr]    Compiling protoc v2.18.0
[INFO] [stderr]    Compiling protobuf-codegen v2.18.0
[INFO] [stderr]    Compiling protoc-rust v2.18.0
[INFO] [stderr]    Compiling sc2-proto v0.2.1
[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]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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-609da32459c22ae4.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-969c5ca0cd7ebab3.rmeta --extern dotenv=/opt/rustwide/target/debug/deps/libdotenv-6d5fae8766e46d8b.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-48fbfd5d624c4cb9.rmeta --extern portpicker=/opt/rustwide/target/debug/deps/libportpicker-23544045e0bb1083.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-f1af95e8bc4ac41e.rmeta --extern protobuf=/opt/rustwide/target/debug/deps/libprotobuf-5e3e5097b206d932.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f7893ea89c3244ad.rmeta --extern sc2_proto=/opt/rustwide/target/debug/deps/libsc2_proto-e30c8829f44f62a1.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ce360c6747a68ca1.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-8c1c130153750359.rmeta --extern shellexpand=/opt/rustwide/target/debug/deps/libshellexpand-516cae2575f9edda.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-5301f6fa520f8279.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-29ecb6c7d3607ec6.rmeta --extern websocket=/opt/rustwide/target/debug/deps/libwebsocket-62009a4d9cff8a85.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "884195b81d9016daa3b8c9628897d4ac9e81e9c7961507250625d5d26ba75d57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "884195b81d9016daa3b8c9628897d4ac9e81e9c7961507250625d5d26ba75d57", kill_on_drop: false }`
[INFO] [stdout] 884195b81d9016daa3b8c9628897d4ac9e81e9c7961507250625d5d26ba75d57
