[INFO] fetching crate stage 0.2.0...
[INFO] checking stage-0.2.0 against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] extracting crate stage 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate stage 0.2.0 on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stage 0.2.0
[INFO] finished tweaking crates.io crate stage 0.2.0
[INFO] tweaked toml for crates.io crate stage 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate stage 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51af83d7d50fbc6f8188910a7b1b46534d6cba4eb5bdac0844f66e980ea8857b
[INFO] running `Command { std: "docker" "start" "-a" "51af83d7d50fbc6f8188910a7b1b46534d6cba4eb5bdac0844f66e980ea8857b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51af83d7d50fbc6f8188910a7b1b46534d6cba4eb5bdac0844f66e980ea8857b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51af83d7d50fbc6f8188910a7b1b46534d6cba4eb5bdac0844f66e980ea8857b", kill_on_drop: false }`
[INFO] [stdout] 51af83d7d50fbc6f8188910a7b1b46534d6cba4eb5bdac0844f66e980ea8857b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7183e7c081beae7192171d9b4e4891e68f6076f7e95971d8de5703b11bd0c361
[INFO] running `Command { std: "docker" "start" "-a" "7183e7c081beae7192171d9b4e4891e68f6076f7e95971d8de5703b11bd0c361", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking futures-core v0.3.4
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[INFO] [stderr]    Compiling serde v1.0.104
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[INFO] [stderr]    Compiling num-integer v0.1.42
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/actors/stream.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut me = self.get_mut();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/actors/stream.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut me = self.get_mut();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `warn_threshold` is never read
[INFO] [stdout]    --> src/actors/reactor.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 94  | pub(crate) struct ActorReactorConfig {
[INFO] [stdout]     |                   ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub warn_threshold: Duration,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ActorReactorConfig` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `warn_threshold` is never read
[INFO] [stdout]    --> src/actors/reactor.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 94  | pub(crate) struct ActorReactorConfig {
[INFO] [stdout]     |                   ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub warn_threshold: Duration,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ActorReactorConfig` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `actor_msg` in this scope
[INFO] [stdout]    --> examples/tcp.rs:136:1
[INFO] [stdout]     |
[INFO] [stdout] 136 | actor_msg!(Continue, TcpRecvMsg, TcpSendCmd, ReadingTcp, WritingTcp);
[INFO] [stdout]     | ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider importing this macro:
[INFO] [stdout]             stage::actor_msg
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::SocketAddr`
[INFO] [stdout]  --> examples/tcp.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::SocketAddr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::io::Error`
[INFO] [stdout]  --> examples/tcp.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::io::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncRead`, `Result as FutIoResult`
[INFO] [stdout]  --> examples/tcp.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 |     io::{AsyncRead, AsyncReadExt, Result as FutIoResult},
[INFO] [stdout]   |          ^^^^^^^^^                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpConnection`
[INFO] [stdout]  --> examples/tcp.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mirai::tcp::{TcpConnection, TcpListenerStream, TcpRecvStream, TcpSendStream};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MsgError`
[INFO] [stdout]   --> examples/tcp.rs:12:80
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Actor, ActorCtx, ActorError, ActorRef, ActorResult, BuildActorOp, Message, MsgError,
[INFO] [stdout]    |                                                                                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `tcp`
[INFO] [stdout]    --> examples/tcp.rs:136:70
[INFO] [stdout]     |
[INFO] [stdout] 136 | actor_msg!(Continue, TcpRecvMsg, TcpSendCmd, ReadingTcp, WritingTcp);
[INFO] [stdout]     |                                                                      ^ consider adding a `main` function to `examples/tcp.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Continue: ActorMessage` is not satisfied
[INFO] [stdout]   --> examples/tcp.rs:47:31
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let _ = ctx.this.send(Continue);
[INFO] [stdout]    |                          ---- ^^^^^^^^ the trait `ActorMessage` is not implemented for `Continue`
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `ActorMessage`:
[INFO] [stdout]              ActorStart
[INFO] [stdout]              ForwardAlert
[INFO] [stdout]              MonitorAlert
[INFO] [stdout]              Request
[INFO] [stdout]              StopCmd
[INFO] [stdout]              SystemStarted
[INFO] [stdout]    = note: required for `Message` to implement `From<Continue>`
[INFO] [stdout]    = note: required for `Continue` to implement `Into<Message>`
[INFO] [stdout] note: required by a bound in `Actor::send`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/actors/handle.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn send<M: Into<Message>>(&self, msg: M) -> Result<(), MsgError> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ required by this bound in `Actor::send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `TcpRecvMsg: ActorMessage` is not satisfied
[INFO] [stdout]   --> examples/tcp.rs:50:33
[INFO] [stdout]    |
[INFO] [stdout] 50 |         match self.handler.send(msg) {
[INFO] [stdout]    |                            ---- ^^^ the trait `ActorMessage` is not implemented for `TcpRecvMsg`
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `ActorMessage`:
[INFO] [stdout]              ActorStart
[INFO] [stdout]              ForwardAlert
[INFO] [stdout]              MonitorAlert
[INFO] [stdout]              Request
[INFO] [stdout]              StopCmd
[INFO] [stdout]              SystemStarted
[INFO] [stdout]    = note: required for `Message` to implement `From<TcpRecvMsg>`
[INFO] [stdout]    = note: required for `TcpRecvMsg` to implement `Into<Message>`
[INFO] [stdout] note: required by a bound in `Actor::send`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/actors/handle.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn send<M: Into<Message>>(&self, msg: M) -> Result<(), MsgError> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^ required by this bound in `Actor::send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `TcpSendCmd: ActorMessage` is not satisfied
[INFO] [stdout]   --> examples/tcp.rs:61:43
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if let Some(cmd) = msg.try_cast::<TcpSendCmd>() {
[INFO] [stdout]    |                                           ^^^^^^^^^^ the trait `ActorMessage` is not implemented for `TcpSendCmd`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `ActorMessage`:
[INFO] [stdout]              ActorStart
[INFO] [stdout]              ForwardAlert
[INFO] [stdout]              MonitorAlert
[INFO] [stdout]              Request
[INFO] [stdout]              StopCmd
[INFO] [stdout]              SystemStarted
[INFO] [stdout] note: required by a bound in `Message::try_cast`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/actors/message.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn try_cast<T: ActorMessage>(&self) -> Option<&T> {
[INFO] [stdout]    |                        ^^^^^^^^^^^^ required by this bound in `Message::try_cast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `TcpRecvMsg: ActorMessage` is not satisfied
[INFO] [stdout]    --> examples/tcp.rs:105:43
[INFO] [stdout]     |
[INFO] [stdout] 105 |         if let Some(msg) = msg.try_cast::<TcpRecvMsg>() {
[INFO] [stdout]     |                                           ^^^^^^^^^^ the trait `ActorMessage` is not implemented for `TcpRecvMsg`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `ActorMessage`:
[INFO] [stdout]               ActorStart
[INFO] [stdout]               ForwardAlert
[INFO] [stdout]               MonitorAlert
[INFO] [stdout]               Request
[INFO] [stdout]               StopCmd
[INFO] [stdout]               SystemStarted
[INFO] [stdout] note: required by a bound in `Message::try_cast`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/actors/message.rs:14:24
[INFO] [stdout]     |
[INFO] [stdout] 14  |     pub fn try_cast<T: ActorMessage>(&self) -> Option<&T> {
[INFO] [stdout]     |                        ^^^^^^^^^^^^ required by this bound in `Message::try_cast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `TcpSendCmd: ActorMessage` is not satisfied
[INFO] [stdout]    --> examples/tcp.rs:107:35
[INFO] [stdout]     |
[INFO] [stdout] 107 |             self.tx.unwrap().send(TcpSendCmd::Send(msg.into_bytes())).unwrap();
[INFO] [stdout]     |                              ---- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `ActorMessage` is not implemented for `TcpSendCmd`
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `ActorMessage`:
[INFO] [stdout]               ActorStart
[INFO] [stdout]               ForwardAlert
[INFO] [stdout]               MonitorAlert
[INFO] [stdout]               Request
[INFO] [stdout]               StopCmd
[INFO] [stdout]               SystemStarted
[INFO] [stdout]     = note: required for `Message` to implement `From<TcpSendCmd>`
[INFO] [stdout]     = note: required for `TcpSendCmd` to implement `Into<Message>`
[INFO] [stdout] note: required by a bound in `Actor::send`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/actors/handle.rs:26:20
[INFO] [stdout]     |
[INFO] [stdout] 26  |     pub fn send<M: Into<Message>>(&self, msg: M) -> Result<(), MsgError> {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^ required by this bound in `Actor::send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `ReadingTcp: ActorMessage` is not satisfied
[INFO] [stdout]    --> examples/tcp.rs:109:50
[INFO] [stdout]     |
[INFO] [stdout] 109 |         } else if let Some(msg) = msg.try_cast::<ReadingTcp>() {
[INFO] [stdout]     |                                                  ^^^^^^^^^^ the trait `ActorMessage` is not implemented for `ReadingTcp`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `ActorMessage`:
[INFO] [stdout]               ActorStart
[INFO] [stdout]               ForwardAlert
[INFO] [stdout]               MonitorAlert
[INFO] [stdout]               Request
[INFO] [stdout]               StopCmd
[INFO] [stdout]               SystemStarted
[INFO] [stdout] note: required by a bound in `Message::try_cast`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/actors/message.rs:14:24
[INFO] [stdout]     |
[INFO] [stdout] 14  |     pub fn try_cast<T: ActorMessage>(&self) -> Option<&T> {
[INFO] [stdout]     |                        ^^^^^^^^^^^^ required by this bound in `Message::try_cast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `WritingTcp: ActorMessage` is not satisfied
[INFO] [stdout]    --> examples/tcp.rs:112:50
[INFO] [stdout]     |
[INFO] [stdout] 112 |         } else if let Some(msg) = msg.try_cast::<WritingTcp>() {
[INFO] [stdout]     |                                                  ^^^^^^^^^^ the trait `ActorMessage` is not implemented for `WritingTcp`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `ActorMessage`:
[INFO] [stdout]               ActorStart
[INFO] [stdout]               ForwardAlert
[INFO] [stdout]               MonitorAlert
[INFO] [stdout]               Request
[INFO] [stdout]               StopCmd
[INFO] [stdout]               SystemStarted
[INFO] [stdout] note: required by a bound in `Message::try_cast`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/actors/message.rs:14:24
[INFO] [stdout]     |
[INFO] [stdout] 14  |     pub fn try_cast<T: ActorMessage>(&self) -> Option<&T> {
[INFO] [stdout]     |                        ^^^^^^^^^^^^ required by this bound in `Message::try_cast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/tcp.rs:84:85
[INFO] [stdout]     |
[INFO] [stdout] 84  |       pub async fn handle(mut self, ctx: ActorCtx, msg: Message) -> ActorResult<Self> {
[INFO] [stdout]     |  _____________________________________________________________________________________^
[INFO] [stdout] 85  | |         // Await each incoming connection. The Actor will use no CPU time until the system gives the
[INFO] [stdout] 86  | |         // event letting us know we have a connection.
[INFO] [stdout] 87  | |         let incoming = match self.listener.next().await.unwrap() {
[INFO] [stdout] ...   |
[INFO] [stdout] 99  | |         let rx_actor_state = TcpRecvActor { conn: rx, handler: echo_actor.clone() };
[INFO] [stdout] 100 | |     }
[INFO] [stdout]     | |_____^ expected `Result<TcpListenerActor, ...>`, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `Result<TcpListenerActor, ActorError>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stage` (example "tcp") due to 11 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7183e7c081beae7192171d9b4e4891e68f6076f7e95971d8de5703b11bd0c361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7183e7c081beae7192171d9b4e4891e68f6076f7e95971d8de5703b11bd0c361", kill_on_drop: false }`
[INFO] [stdout] 7183e7c081beae7192171d9b4e4891e68f6076f7e95971d8de5703b11bd0c361
