[INFO] cloning repository https://github.com/KodrAus/kafka-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KodrAus/kafka-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKodrAus%2Fkafka-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKodrAus%2Fkafka-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9bfab7df04620634fa460f099b8ee6d77e22816a
[INFO] documenting KodrAus/kafka-rs 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%2FKodrAus%2Fkafka-rs" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KodrAus/kafka-rs 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/KodrAus/kafka-rs
[INFO] finished tweaking git repo https://github.com/KodrAus/kafka-rs
[INFO] tweaked toml for git repo https://github.com/KodrAus/kafka-rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/KodrAus/kafka-rs 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] error: the lock file /workspace/builds/worker-13/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 29fbd5ce27a2e1bf739b7c10f46c0cff506bb02eff2a36ab419b1d12337d2626
[INFO] running `Command { std: "docker" "start" "-a" "29fbd5ce27a2e1bf739b7c10f46c0cff506bb02eff2a36ab419b1d12337d2626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29fbd5ce27a2e1bf739b7c10f46c0cff506bb02eff2a36ab419b1d12337d2626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fbd5ce27a2e1bf739b7c10f46c0cff506bb02eff2a36ab419b1d12337d2626", kill_on_drop: false }`
[INFO] [stdout] 29fbd5ce27a2e1bf739b7c10f46c0cff506bb02eff2a36ab419b1d12337d2626
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f296b2ca6fba765c2452f44462bd9b41e7ce7a6f427f79df29558eedce5bc14b
[INFO] running `Command { std: "docker" "start" "-a" "f296b2ca6fba765c2452f44462bd9b41e7ce7a6f427f79df29558eedce5bc14b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking stopwatch v0.0.7
[INFO] [stderr]  Documenting kafka v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns, custom_derive, plugin)]
[INFO] [stdout]   |                            ^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mio::Sender`
[INFO] [stdout]  --> src/client/client.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mio::Sender;
[INFO] [stdout]   |     ^^^^^^^^^^^ no `Sender` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bincode::SizeLimit`
[INFO] [stdout]  --> src/protocol/encoding/impl_rustc_serialize/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use bincode::SizeLimit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ no `SizeLimit` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bincode::rustc_serialize`
[INFO] [stdout]  --> src/protocol/encoding/impl_rustc_serialize/mod.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 | use bincode::rustc_serialize::SizeChecker;
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^ could not find `rustc_serialize` in `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bincode::SizeLimit`
[INFO] [stdout]   --> src/protocol/encoding/impl_rustc_serialize/reader.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use bincode::SizeLimit;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ no `SizeLimit` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `byteorder::Error`
[INFO] [stdout]   --> src/protocol/encoding/impl_rustc_serialize/reader.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use byteorder::Error as ByteOrderError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `Error` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bincode::rustc_serialize`
[INFO] [stdout]  --> src/protocol/encoding/impl_rustc_serialize/writer.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use bincode::rustc_serialize::EncodingError;
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^ could not find `rustc_serialize` in `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `byteorder::Error`
[INFO] [stdout]   --> src/protocol/encoding/impl_rustc_serialize/writer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use byteorder::Error as ByteOrderError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `Error` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `mio::Handler`, `mio::EventLoop`, `mio::EventSet`
[INFO] [stdout]  --> src/conn/io_loop.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use mio::{ Handler, EventLoop, Token, EventSet };
[INFO] [stdout]   |            ^^^^^^^  ^^^^^^^^^         ^^^^^^^^ no `EventSet` in the root
[INFO] [stdout]   |            |        |
[INFO] [stdout]   |            |        no `EventLoop` in the root
[INFO] [stdout]   |            no `Handler` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mio::util`
[INFO] [stdout]  --> src/conn/io_loop.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | use mio::util::Slab;
[INFO] [stdout]   |          ^^^^ could not find `util` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `mio::tcp`, `self::writer::EncodingError`
[INFO] [stdout]   --> src/protocol/encoding/impl_rustc_serialize/mod.rs:12:56
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use self::writer::{ EncoderWriter, EncodingResult, EncodingError };
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/conn/io_loop.rs:8:10
[INFO] [stdout]    |
[INFO] [stdout] 8  | use mio::tcp::TcpStream;
[INFO] [stdout]    |          ^^^ could not find `tcp` in `mio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `rustc_serialize` in `bincode`
[INFO] [stdout]   --> src/protocol/encoding/impl_rustc_serialize/writer.rs:14:39
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type EncodingResult<T> = bincode::rustc_serialize::EncodingResult<T>;
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^ could not find `rustc_serialize` in `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns, custom_derive, plugin)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 14 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `kafka`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name kafka src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-e3f65e822bed0bb8.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-cdbbc07100f440a1.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-e39cb00dc7b3284b.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-0c43213a0ebc6829.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-0e355727854478f2.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-980a5c89adcaa5c2.rmeta --extern stopwatch=/opt/rustwide/target/debug/deps/libstopwatch-7673dcdd7087f230.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "f296b2ca6fba765c2452f44462bd9b41e7ce7a6f427f79df29558eedce5bc14b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f296b2ca6fba765c2452f44462bd9b41e7ce7a6f427f79df29558eedce5bc14b", kill_on_drop: false }`
[INFO] [stdout] f296b2ca6fba765c2452f44462bd9b41e7ce7a6f427f79df29558eedce5bc14b