[INFO] fetching crate coerce-rt 0.2.2...
[INFO] checking coerce-rt-0.2.2 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate coerce-rt 0.2.2 into /workspace/builds/worker-32/source
[INFO] validating manifest of crates.io crate coerce-rt 0.2.2 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coerce-rt 0.2.2
[INFO] finished tweaking crates.io crate coerce-rt 0.2.2
[INFO] tweaked toml for crates.io crate coerce-rt 0.2.2 written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-2021-10-15" "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-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d8dd57fa06fc1f6ef28db4066f9a7094c52e3b9f9748268d36706e50a6fb65b
[INFO] running `Command { std: "docker" "start" "-a" "0d8dd57fa06fc1f6ef28db4066f9a7094c52e3b9f9748268d36706e50a6fb65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d8dd57fa06fc1f6ef28db4066f9a7094c52e3b9f9748268d36706e50a6fb65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d8dd57fa06fc1f6ef28db4066f9a7094c52e3b9f9748268d36706e50a6fb65b", kill_on_drop: false }`
[INFO] [stdout] 0d8dd57fa06fc1f6ef28db4066f9a7094c52e3b9f9748268d36706e50a6fb65b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3c8203e83ff5d4f1a562f19907a9b25e2f7456a258b51bcf4c58f83949ec6fd
[INFO] running `Command { std: "docker" "start" "-a" "c3c8203e83ff5d4f1a562f19907a9b25e2f7456a258b51bcf4c58f83949ec6fd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking coerce-rt v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]  --> src/actor/context.rs:5:48
[INFO] [stdout]   |
[INFO] [stdout] 5 |     static ref CURRENT_CONTEXT: ActorContext = { ActorContext::new() };
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]  --> src/actor/context.rs:5:48
[INFO] [stdout]   |
[INFO] [stdout] 5 |     static ref CURRENT_CONTEXT: ActorContext = { ActorContext::new() };
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/actor/scheduler/mod.rs:130:21
[INFO] [stdout]     |
[INFO] [stdout] 130 |         if let Some(a) = self.actors.remove(&msg.0) {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/worker.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         for i in 0..count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/worker.rs:124:25
[INFO] [stdout]     |
[INFO] [stdout] 124 |                     Err(e) => error!(target: "Worker", "error sending msg"),
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/worker.rs:108:59
[INFO] [stdout]     |
[INFO] [stdout] 108 |     async fn handle(&mut self, message: WorkerMessage<M>, ctx: &mut ActorHandlerContext) {
[INFO] [stdout]     |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/actor/scheduler/mod.rs:130:21
[INFO] [stdout]     |
[INFO] [stdout] 130 |         if let Some(a) = self.actors.remove(&msg.0) {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/worker.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         for i in 0..count {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/worker.rs:124:25
[INFO] [stdout]     |
[INFO] [stdout] 124 |                     Err(e) => error!(target: "Worker", "error sending msg"),
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/worker.rs:108:59
[INFO] [stdout]     |
[INFO] [stdout] 108 |     async fn handle(&mut self, message: WorkerMessage<M>, ctx: &mut ActorHandlerContext) {
[INFO] [stdout]     |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]   --> src/worker.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     state: W,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]   --> src/worker.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     state: W,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> tests/test_worker.rs:22:32
[INFO] [stdout]    |
[INFO] [stdout] 22 |     async fn handle(&mut self, message: HeavyTask, ctx: &mut ActorHandlerContext) -> &'static str {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> tests/test_worker.rs:22:52
[INFO] [stdout]    |
[INFO] [stdout] 22 |     async fn handle(&mut self, message: HeavyTask, ctx: &mut ActorHandlerContext) -> &'static str {
[INFO] [stdout]    |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ActorRef`, `new_actor`
[INFO] [stdout]  --> tests/util/mod.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use coerce_rt::actor::{new_actor, Actor, ActorRef};
[INFO] [stdout]   |                        ^^^^^^^^^         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ActorRef`, `new_actor`
[INFO] [stdout]  --> tests/util/mod.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use coerce_rt::actor::{new_actor, Actor, ActorRef};
[INFO] [stdout]   |                        ^^^^^^^^^         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ActorRef`, `new_actor`
[INFO] [stdout]  --> tests/util/mod.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use coerce_rt::actor::{new_actor, Actor, ActorRef};
[INFO] [stdout]   |                        ^^^^^^^^^         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ActorRef`, `new_actor`
[INFO] [stdout]  --> tests/util/mod.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use coerce_rt::actor::{new_actor, Actor, ActorRef};
[INFO] [stdout]   |                        ^^^^^^^^^         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stop`
[INFO] [stdout]   --> tests/test_context.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let stop = actor_ref.stop().await;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_stop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/test_context.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let mut actor = ctx.get_tracked_actor::<TestActor>(actor_ref.id).await;
[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: unused `Result` that must be used
[INFO] [stdout]   --> tests/test_lifecycle.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     actor_ref.stop().await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/test_message.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | /     actor_ref
[INFO] [stdout] 88 | |         .exec(|mut actor| {
[INFO] [stdout] 89 | |             actor.status = Some(TestActorStatus::Active);
[INFO] [stdout] 90 | |         })
[INFO] [stdout] 91 | |         .await;
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[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] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.97s
[INFO] running `Command { std: "docker" "inspect" "c3c8203e83ff5d4f1a562f19907a9b25e2f7456a258b51bcf4c58f83949ec6fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3c8203e83ff5d4f1a562f19907a9b25e2f7456a258b51bcf4c58f83949ec6fd", kill_on_drop: false }`
[INFO] [stdout] c3c8203e83ff5d4f1a562f19907a9b25e2f7456a258b51bcf4c58f83949ec6fd
