[INFO] fetching crate tcp-echo 0.1.2...
[INFO] documenting tcp-echo-0.1.2 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate tcp-echo 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tcp-echo 0.1.2 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 tcp-echo 0.1.2
[INFO] finished tweaking crates.io crate tcp-echo 0.1.2
[INFO] tweaked toml for crates.io crate tcp-echo 0.1.2 written to /workspace/builds/worker-4/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] [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" "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] 6c01568256c51a5d336348025ec810140332a2fd2deeb91b483b9ea461699379
[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" "6c01568256c51a5d336348025ec810140332a2fd2deeb91b483b9ea461699379", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c01568256c51a5d336348025ec810140332a2fd2deeb91b483b9ea461699379", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c01568256c51a5d336348025ec810140332a2fd2deeb91b483b9ea461699379", kill_on_drop: false }`
[INFO] [stdout] 6c01568256c51a5d336348025ec810140332a2fd2deeb91b483b9ea461699379
[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" "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] [stdout] bcfe31f17c7c151fcc35fb93e206442310405159f0b7fb7d0f81bb63b2c7b099
[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" "bcfe31f17c7c151fcc35fb93e206442310405159f0b7fb7d0f81bb63b2c7b099", kill_on_drop: false }`
[INFO] [stderr]     Checking lossyq v0.1.19
[INFO] [stderr]     Checking acto-rs v0.3.9
[INFO] [stderr]  Documenting tcp-echo v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0053]: method `process` has an incompatible type for trait
[INFO] [stdout]  --> src/placeholder.rs:9:77
[INFO] [stdout]   |
[INFO] [stdout] 9 |   fn process(&mut self, _output: &mut Sender<Message<Self::OutputType>>) -> Schedule {
[INFO] [stdout]   |                                                                             ^^^^^^^^
[INFO] [stdout]   |                                                                             |
[INFO] [stdout]   |                                                                             expected enum `std::result::Result`, found enum `actors::Schedule`
[INFO] [stdout]   |                                                                             help: change the output type to match the trait: `std::result::Result<(), &'static str>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected fn pointer `fn(&mut placeholder::Placeholder, &mut actors::Sender<actors::Message<u64>>) -> std::result::Result<(), &'static str>`
[INFO] [stdout]              found fn pointer `fn(&mut placeholder::Placeholder, &mut actors::Sender<actors::Message<u64>>) -> actors::Schedule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `process` has an incompatible type for trait
[INFO] [stdout]  --> src/read_bytes.rs:8:77
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn process(&mut self, _output: &mut Sender<Message<Self::OutputType>>) -> Schedule {
[INFO] [stdout]   |                                                                             ^^^^^^^^
[INFO] [stdout]   |                                                                             |
[INFO] [stdout]   |                                                                             expected enum `std::result::Result`, found enum `actors::Schedule`
[INFO] [stdout]   |                                                                             help: change the output type to match the trait: `std::result::Result<(), &'static str>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected fn pointer `fn(&mut read_bytes::ReadBytes, &mut actors::Sender<actors::Message<u64>>) -> std::result::Result<(), &'static str>`
[INFO] [stdout]              found fn pointer `fn(&mut read_bytes::ReadBytes, &mut actors::Sender<actors::Message<u64>>) -> actors::Schedule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `process` has an incompatible type for trait
[INFO] [stdout]   --> src/parser.rs:12:58
[INFO] [stdout]    |
[INFO] [stdout] 12 |     _output:  &mut Sender<Message<Self::OutputType>>) -> Schedule
[INFO] [stdout]    |                                                          ^^^^^^^^
[INFO] [stdout]    |                                                          |
[INFO] [stdout]    |                                                          expected enum `std::result::Result`, found enum `actors::Schedule`
[INFO] [stdout]    |                                                          help: change the output type to match the trait: `std::result::Result<(), &'static str>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(&mut parser::Parser, &mut actors::ChannelWrapper<u64>, &mut actors::Sender<actors::Message<u64>>) -> std::result::Result<(), &'static str>`
[INFO] [stdout]               found fn pointer `fn(&mut parser::Parser, &mut actors::ChannelWrapper<u64>, &mut actors::Sender<actors::Message<u64>>) -> actors::Schedule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `process` has an incompatible type for trait
[INFO] [stdout]  --> src/handle_parsed.rs:8:73
[INFO] [stdout]   |
[INFO] [stdout] 8 |   fn process(&mut self, input: &mut ChannelWrapper<Self::InputType>) -> Schedule {
[INFO] [stdout]   |                                                                         ^^^^^^^^
[INFO] [stdout]   |                                                                         |
[INFO] [stdout]   |                                                                         expected enum `std::result::Result`, found enum `actors::Schedule`
[INFO] [stdout]   |                                                                         help: change the output type to match the trait: `std::result::Result<(), &'static str>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected fn pointer `fn(&mut handle_parsed::HandleParsed, &mut actors::ChannelWrapper<u64>) -> std::result::Result<(), &'static str>`
[INFO] [stdout]              found fn pointer `fn(&mut handle_parsed::HandleParsed, &mut actors::ChannelWrapper<u64>) -> actors::Schedule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `tcp-echo`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name tcp_echo 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 acto_rs=/opt/rustwide/target/debug/deps/libacto_rs-4198b021ce9b1ce2.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-4d8faed75bde785f.rmeta --cap-lints=warn --crate-version 0.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "bcfe31f17c7c151fcc35fb93e206442310405159f0b7fb7d0f81bb63b2c7b099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcfe31f17c7c151fcc35fb93e206442310405159f0b7fb7d0f81bb63b2c7b099", kill_on_drop: false }`
[INFO] [stdout] bcfe31f17c7c151fcc35fb93e206442310405159f0b7fb7d0f81bb63b2c7b099
