[INFO] fetching crate tcp-echo 0.1.2...
[INFO] testing tcp-echo-0.1.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate tcp-echo 0.1.2 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate tcp-echo 0.1.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-52/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lossyq v0.1.19
[INFO] [stderr]   Downloaded acto-rs v0.3.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94ee65a3876d45be52c83a17a95ee8c60c48dfebe6148e4fe59c1cc0acede834
[INFO] running `Command { std: "docker" "start" "-a" "94ee65a3876d45be52c83a17a95ee8c60c48dfebe6148e4fe59c1cc0acede834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94ee65a3876d45be52c83a17a95ee8c60c48dfebe6148e4fe59c1cc0acede834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94ee65a3876d45be52c83a17a95ee8c60c48dfebe6148e4fe59c1cc0acede834", kill_on_drop: false }`
[INFO] [stdout] 94ee65a3876d45be52c83a17a95ee8c60c48dfebe6148e4fe59c1cc0acede834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "RUSTFLAGS=--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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2f7b53c889d2208c492e69c6d50e5babb3d5247dcf3d7a3895821d066d94cc2
[INFO] running `Command { std: "docker" "start" "-a" "e2f7b53c889d2208c492e69c6d50e5babb3d5247dcf3d7a3895821d066d94cc2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling lossyq v0.1.19
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling acto-rs v0.3.9
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling 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 `Result`, found enum `actors::Schedule`
[INFO] [stdout]   |                                                                             help: change the output type to match the trait: `Result<(), &'static str>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected fn pointer `fn(&mut Placeholder, &mut actors::Sender<actors::Message<u64>>) -> Result<(), &'static str>`
[INFO] [stdout]              found fn pointer `fn(&mut 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 `Result`, found enum `actors::Schedule`
[INFO] [stdout]   |                                                                             help: change the output type to match the trait: `Result<(), &'static str>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected fn pointer `fn(&mut ReadBytes, &mut actors::Sender<actors::Message<u64>>) -> Result<(), &'static str>`
[INFO] [stdout]              found fn pointer `fn(&mut 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 `Result`, found enum `actors::Schedule`
[INFO] [stdout]    |                                                          help: change the output type to match the trait: `Result<(), &'static str>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(&mut Parser, &mut actors::ChannelWrapper<u64>, &mut actors::Sender<actors::Message<u64>>) -> Result<(), &'static str>`
[INFO] [stdout]               found fn pointer `fn(&mut 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 `Result`, found enum `actors::Schedule`
[INFO] [stdout]   |                                                                         help: change the output type to match the trait: `Result<(), &'static str>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected fn pointer `fn(&mut HandleParsed, &mut actors::ChannelWrapper<u64>) -> Result<(), &'static str>`
[INFO] [stdout]              found fn pointer `fn(&mut HandleParsed, &mut actors::ChannelWrapper<u64>) -> actors::Schedule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]   --> src/main.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |   let _source_id = sched.add_task(source_task).unwrap();
[INFO] [stdout]    |                          ^^^^^^^^ ----------- supplied 1 argument
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          expected 2 arguments
[INFO] [stdout]    |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/acto-rs-0.3.9/src/scheduler/mod.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn add_task(&mut self, task: Box<Task+Send>, rule: SchedulingRule) -> Result<TaskId, Error> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]   --> src/main.rs:33:24
[INFO] [stdout]    |
[INFO] [stdout] 33 |   let _sink_id = sched.add_task(sink_task);
[INFO] [stdout]    |                        ^^^^^^^^ --------- supplied 1 argument
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        expected 2 arguments
[INFO] [stdout]    |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/acto-rs-0.3.9/src/scheduler/mod.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn add_task(&mut self, task: Box<Task+Send>, rule: SchedulingRule) -> Result<TaskId, Error> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0061.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tcp-echo` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "e2f7b53c889d2208c492e69c6d50e5babb3d5247dcf3d7a3895821d066d94cc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f7b53c889d2208c492e69c6d50e5babb3d5247dcf3d7a3895821d066d94cc2", kill_on_drop: false }`
[INFO] [stdout] e2f7b53c889d2208c492e69c6d50e5babb3d5247dcf3d7a3895821d066d94cc2
