[INFO] cloning repository https://github.com/GeneralSet/website
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GeneralSet/website" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeneralSet%2Fwebsite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeneralSet%2Fwebsite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38a0b4fc9324e8bbd07be20ad1be82ee0fbd6467
[INFO] documenting GeneralSet/website against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeneralSet%2Fwebsite" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GeneralSet/website 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 git repo https://github.com/GeneralSet/website
[INFO] finished tweaking git repo https://github.com/GeneralSet/website
[INFO] tweaked toml for git repo https://github.com/GeneralSet/website written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/GeneralSet/website already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7a62f5a8eac5d9645ccfe3c3be5475e3b0fe8390d95d629d497b460f77b36ab0
[INFO] running `Command { std: "docker" "start" "-a" "7a62f5a8eac5d9645ccfe3c3be5475e3b0fe8390d95d629d497b460f77b36ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a62f5a8eac5d9645ccfe3c3be5475e3b0fe8390d95d629d497b460f77b36ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a62f5a8eac5d9645ccfe3c3be5475e3b0fe8390d95d629d497b460f77b36ab0", kill_on_drop: false }`
[INFO] [stdout] 7a62f5a8eac5d9645ccfe3c3be5475e3b0fe8390d95d629d497b460f77b36ab0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 7ae757bc0e23d15ffa1c20e1574be7f0e03cd03f67ac9e7da1556a1d2e11a5af
[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" "7ae757bc0e23d15ffa1c20e1574be7f0e03cd03f67ac9e7da1556a1d2e11a5af", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.38
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.38
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking tokio-sync v0.1.3
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking tokio-executor v0.1.6
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking crc32fast v1.1.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking signal-hook v0.1.8
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking resolv-conf v0.6.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling nom v4.2.2
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.16
[INFO] [stderr]     Checking flate2 v1.0.6
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.12
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking h2 v0.1.16
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking tokio v0.1.16
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.38
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling v_escape_derive v0.2.1
[INFO] [stderr]    Compiling actix_derive v0.3.2
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.38
[INFO] [stderr]     Checking v_escape v0.3.2
[INFO] [stderr]     Checking v_htmlescape v0.3.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.38
[INFO] [stderr]     Checking trust-dns-proto v0.6.3
[INFO] [stderr]     Checking trust-dns-proto v0.5.0
[INFO] [stderr]     Checking set v0.1.0 (https://github.com/GeneralSet/Set#8a434fc2)
[INFO] [stderr]     Checking trust-dns-resolver v0.10.3
[INFO] [stderr]     Checking actix v0.7.9
[INFO] [stderr]     Checking actix-net v0.2.6
[INFO] [stderr]     Checking serde v1.0.89
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking actix-web v0.7.18
[INFO] [stderr]  Documenting multiplayer_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(type_alias_enum_variants)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(vec_remove_item)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `multiplayer_server`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name multiplayer_server src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-c05bcd3f7595140f.rmeta --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-1d67e86e87dea988.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-41d6afec0f609a83.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-d6ed6d827e1a2292.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-7f5f4defce3f7a29.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d0473f900dd4057c.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-4d55d8f401988882.rmeta --extern set=/opt/rustwide/target/debug/deps/libset-9aaebdec460810c0.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "7ae757bc0e23d15ffa1c20e1574be7f0e03cd03f67ac9e7da1556a1d2e11a5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae757bc0e23d15ffa1c20e1574be7f0e03cd03f67ac9e7da1556a1d2e11a5af", kill_on_drop: false }`
[INFO] [stdout] 7ae757bc0e23d15ffa1c20e1574be7f0e03cd03f67ac9e7da1556a1d2e11a5af