[INFO] fetching crate derive-aktor 0.1.6...
[INFO] testing derive-aktor-0.1.6 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate derive-aktor 0.1.6 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate derive-aktor 0.1.6
[INFO] finished tweaking crates.io crate derive-aktor 0.1.6
[INFO] tweaked toml for crates.io crate derive-aktor 0.1.6 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate derive-aktor 0.1.6 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate derive-aktor 0.1.6 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] deff6e64fdeffbaac5a2e5ee9a665ade4935cf7a10b4c9cf1f48500613bb4d5a
[INFO] running `Command { std: "docker" "start" "-a" "deff6e64fdeffbaac5a2e5ee9a665ade4935cf7a10b4c9cf1f48500613bb4d5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling cfg-if v0.1.10
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[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling futures-channel v0.3.5
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[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
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[INFO] [stderr]    Compiling itoa v0.4.5
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[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling pin-project-lite v0.1.6
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling sharded-slab v0.0.9
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling tracing-serde v0.1.1
[INFO] [stderr]    Compiling tracing-subscriber v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]    Compiling async-trait v0.1.33
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling tracing v0.1.15
[INFO] [stderr]    Compiling pin-project v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling aktors v0.2.7
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling derive-aktor v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tokio::runtime::Runtime`
[INFO] [stdout]  --> src/bin/ex.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::runtime::Runtime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]   --> src/bin/ex.rs:10:34
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tokio::sync::mpsc::{channel, Receiver, Sender};
[INFO] [stdout]    |                                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]   --> src/bin/ex.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::sync::Arc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicUsize` and `Ordering`
[INFO] [stdout]   --> src/bin/ex.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::sync::atomic::{AtomicUsize, Ordering};
[INFO] [stdout]    |                         ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/bin/ex.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kv_store_handle`
[INFO] [stdout]    --> src/bin/ex.rs:106:20
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let (kv_store, kv_store_handle) = KeyValueStoreActor::new(KeyValueStore::new()).await;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kv_store_handle`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_error` is never used
[INFO] [stdout]   --> src/bin/ex.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl<U: Hash + Debug + Eq + Send + Sync + 'static> KeyValueStore<U> {
[INFO] [stdout]    | ------------------------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     async fn on_error(
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/bin/ex.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |         panic!(value);
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 50 |         panic!("{}", value);
[INFO] [stdout]    |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.64s
[INFO] running `Command { std: "docker" "inspect" "deff6e64fdeffbaac5a2e5ee9a665ade4935cf7a10b4c9cf1f48500613bb4d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deff6e64fdeffbaac5a2e5ee9a665ade4935cf7a10b4c9cf1f48500613bb4d5a", kill_on_drop: false }`
[INFO] [stdout] deff6e64fdeffbaac5a2e5ee9a665ade4935cf7a10b4c9cf1f48500613bb4d5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db3587201fec9fe267704ac6d7756ae73b58fcc02cd3902e2e440dae94ba8b1a
[INFO] running `Command { std: "docker" "start" "-a" "db3587201fec9fe267704ac6d7756ae73b58fcc02cd3902e2e440dae94ba8b1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling derive-aktor v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tokio::runtime::Runtime`
[INFO] [stdout]  --> src/bin/ex.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::runtime::Runtime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]   --> src/bin/ex.rs:10:34
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tokio::sync::mpsc::{channel, Receiver, Sender};
[INFO] [stdout]    |                                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]   --> src/bin/ex.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::sync::Arc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicUsize` and `Ordering`
[INFO] [stdout]   --> src/bin/ex.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::sync::atomic::{AtomicUsize, Ordering};
[INFO] [stdout]    |                         ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/bin/ex.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kv_store_handle`
[INFO] [stdout]    --> src/bin/ex.rs:106:20
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let (kv_store, kv_store_handle) = KeyValueStoreActor::new(KeyValueStore::new()).await;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kv_store_handle`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ping`
[INFO] [stdout]    --> src/bin/ex.rs:150:34
[INFO] [stdout]     |
[INFO] [stdout] 150 |         pub async fn pong(&self, ping: PingActor) {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_ping`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_error` is never used
[INFO] [stdout]   --> src/bin/ex.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl<U: Hash + Debug + Eq + Send + Sync + 'static> KeyValueStore<U> {
[INFO] [stdout]    | ------------------------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     async fn on_error(
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/bin/ex.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |         panic!(value);
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 50 |         panic!("{}", value);
[INFO] [stdout]    |                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/ex.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         ping_handle.await;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let _ = ping_handle.await;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/ex.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         pong_handle.await;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let _ = pong_handle.await;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/ex.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         ping_handle.await;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let _ = ping_handle.await;
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "db3587201fec9fe267704ac6d7756ae73b58fcc02cd3902e2e440dae94ba8b1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3587201fec9fe267704ac6d7756ae73b58fcc02cd3902e2e440dae94ba8b1a", kill_on_drop: false }`
[INFO] [stdout] db3587201fec9fe267704ac6d7756ae73b58fcc02cd3902e2e440dae94ba8b1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5ac650df33d8d8207b0256159302299cc9178fae67e81d9d1a912b1942c1270c
[INFO] running `Command { std: "docker" "start" "-a" "5ac650df33d8d8207b0256159302299cc9178fae67e81d9d1a912b1942c1270c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `tokio::runtime::Runtime`
[INFO] [stderr]  --> src/bin/ex.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use tokio::runtime::Runtime;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Receiver`
[INFO] [stderr]   --> src/bin/ex.rs:10:34
[INFO] [stderr]    |
[INFO] [stderr] 10 | use tokio::sync::mpsc::{channel, Receiver, Sender};
[INFO] [stderr]    |                                  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]   --> src/bin/ex.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::sync::Arc;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AtomicUsize` and `Ordering`
[INFO] [stderr]   --> src/bin/ex.rs:16:25
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::sync::atomic::{AtomicUsize, Ordering};
[INFO] [stderr]    |                         ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/bin/ex.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::time::Duration;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `kv_store_handle`
[INFO] [stderr]    --> src/bin/ex.rs:106:20
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let (kv_store, kv_store_handle) = KeyValueStoreActor::new(KeyValueStore::new()).await;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kv_store_handle`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ping`
[INFO] [stderr]    --> src/bin/ex.rs:150:34
[INFO] [stderr]     |
[INFO] [stderr] 150 |         pub async fn pong(&self, ping: PingActor) {
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_ping`
[INFO] [stderr] 
[INFO] [stderr] warning: method `on_error` is never used
[INFO] [stderr]   --> src/bin/ex.rs:53:14
[INFO] [stderr]    |
[INFO] [stderr] 39 | impl<U: Hash + Debug + Eq + Send + Sync + 'static> KeyValueStore<U> {
[INFO] [stderr]    | ------------------------------------------------------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 53 |     async fn on_error(
[INFO] [stderr]    |              ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/bin/ex.rs:50:16
[INFO] [stderr]    |
[INFO] [stderr] 50 |         panic!(value);
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]    |
[INFO] [stderr] 50 |         panic!("{}", value);
[INFO] [stderr]    |                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/bin/ex.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 |         ping_handle.await;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let _ = ping_handle.await;
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/bin/ex.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         pong_handle.await;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 170 |         let _ = pong_handle.await;
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/bin/ex.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         ping_handle.await;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let _ = ping_handle.await;
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `derive-aktor` (bin "ex" test) generated 12 warnings (run `cargo fix --bin "ex" -p derive-aktor --tests` to apply 8 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/derive_aktor-41a1940c30201c89)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ex.rs (/opt/rustwide/target/debug/deps/ex-d5d9ed6bd162ecd2)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_cycle_termination ... ok
[INFO] [stderr]    Doc-tests derive_aktor
[INFO] [stdout] test tests::test_termination ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5ac650df33d8d8207b0256159302299cc9178fae67e81d9d1a912b1942c1270c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ac650df33d8d8207b0256159302299cc9178fae67e81d9d1a912b1942c1270c", kill_on_drop: false }`
[INFO] [stdout] 5ac650df33d8d8207b0256159302299cc9178fae67e81d9d1a912b1942c1270c
