[INFO] fetching crate kano 0.0.1...
[INFO] testing kano-0.0.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate kano 0.0.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate kano 0.0.1
[INFO] finished tweaking crates.io crate kano 0.0.1
[INFO] tweaked toml for crates.io crate kano 0.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kano 0.0.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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 wasm-bindgen-macro v0.2.105
[INFO] [stderr]   Downloaded lazy_static v1.5.0
[INFO] [stderr]   Downloaded futures-executor v0.3.31
[INFO] [stderr]   Downloaded anyhow v1.0.100
[INFO] [stderr]   Downloaded futures-macro v0.3.31
[INFO] [stderr]   Downloaded slab v0.4.11
[INFO] [stderr]   Downloaded futures v0.3.31
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.105
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.105
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.55
[INFO] [stderr]   Downloaded futures-io v0.3.31
[INFO] [stderr]   Downloaded kano-macros v0.0.1
[INFO] [stderr]   Downloaded rustversion v1.0.22
[INFO] [stderr]   Downloaded js-sys v0.3.82
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.105
[INFO] [stderr]   Downloaded web-sys v0.3.82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d0b5811ba2f1bcba52bc59ada7579567fcad5af8979209a8f9071423373fe8c
[INFO] running `Command { std: "docker" "start" "-a" "2d0b5811ba2f1bcba52bc59ada7579567fcad5af8979209a8f9071423373fe8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d0b5811ba2f1bcba52bc59ada7579567fcad5af8979209a8f9071423373fe8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d0b5811ba2f1bcba52bc59ada7579567fcad5af8979209a8f9071423373fe8c", kill_on_drop: false }`
[INFO] [stdout] 2d0b5811ba2f1bcba52bc59ada7579567fcad5af8979209a8f9071423373fe8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3ed9c04de2c83d0c0f4956e046ebcfeee939300404aa6c469bda67d2322a957
[INFO] running `Command { std: "docker" "start" "-a" "c3ed9c04de2c83d0c0f4956e046ebcfeee939300404aa6c469bda67d2322a957", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling kano-macros v0.0.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling kano v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `SinkExt` and `StreamExt`
[INFO] [stdout]  --> src/signal.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::{SinkExt, StreamExt};
[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: `style::*`
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use style::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 let mut sender = get_signal_sender(registry);
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sender`
[INFO] [stdout]   --> src/signal.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 let mut sender = get_signal_sender(registry);
[INFO] [stdout]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let (sender, mut receiver) = futures::channel::mpsc::channel::<()>(1);
[INFO] [stdout]    |                      ----^^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]   --> src/signal.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let (sender, mut receiver) = futures::channel::mpsc::channel::<()>(1);
[INFO] [stdout]    |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lib.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn log(s: &str) {
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `update_func` is never read
[INFO] [stdout]    --> src/view/reactive.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | struct Data<P: Platform, T: Diff<P>> {
[INFO] [stdout]     |        ---- field in this struct
[INFO] [stdout] 103 |     actual_state: Option<T::State>,
[INFO] [stdout] 104 |     update_func: Box<dyn Fn(Option<T::State>, &mut P::Cursor) -> T::State>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]    --> src/view/reactive.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | impl<P: Platform, T: Diff<P>> Data<P, T> {
[INFO] [stdout]     | ---------------------------------------- method in this implementation
[INFO] [stdout] 109 |     fn update(&mut self, view_id: ViewId) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `weak_data_cell` is never read
[INFO] [stdout]    --> src/view/reactive.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct UpdateCallback<P: Platform, T: Diff<P>> {
[INFO] [stdout]     |        -------------- field in this struct
[INFO] [stdout] 120 |     weak_data_cell: Weak<RefCell<Option<Data<P, T>>>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_signal` is never used
[INFO] [stdout]   --> src/signal.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub trait OnSignal {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 51 |     fn on_signal(&self, target: ViewId) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `broadcast` is never used
[INFO] [stdout]   --> src/signal.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn broadcast(signals: HashSet<Signal>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.65s
[INFO] running `Command { std: "docker" "inspect" "c3ed9c04de2c83d0c0f4956e046ebcfeee939300404aa6c469bda67d2322a957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3ed9c04de2c83d0c0f4956e046ebcfeee939300404aa6c469bda67d2322a957", kill_on_drop: false }`
[INFO] [stdout] c3ed9c04de2c83d0c0f4956e046ebcfeee939300404aa6c469bda67d2322a957
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b52ce73281ce2798d0a93b9d91d0b82d12ca56b61cfda6d9673d8bb2d5e6b57
[INFO] running `Command { std: "docker" "start" "-a" "2b52ce73281ce2798d0a93b9d91d0b82d12ca56b61cfda6d9673d8bb2d5e6b57", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `SinkExt` and `StreamExt`
[INFO] [stdout]  --> src/signal.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::{SinkExt, StreamExt};
[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: `style::*`
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use style::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 let mut sender = get_signal_sender(registry);
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sender`
[INFO] [stdout]   --> src/signal.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 let mut sender = get_signal_sender(registry);
[INFO] [stdout]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let (sender, mut receiver) = futures::channel::mpsc::channel::<()>(1);
[INFO] [stdout]    |                      ----^^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]   --> src/signal.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let (sender, mut receiver) = futures::channel::mpsc::channel::<()>(1);
[INFO] [stdout]    |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lib.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn log(s: &str) {
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `update_func` is never read
[INFO] [stdout]    --> src/view/reactive.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | struct Data<P: Platform, T: Diff<P>> {
[INFO] [stdout]     |        ---- field in this struct
[INFO] [stdout] 103 |     actual_state: Option<T::State>,
[INFO] [stdout] 104 |     update_func: Box<dyn Fn(Option<T::State>, &mut P::Cursor) -> T::State>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]    --> src/view/reactive.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | impl<P: Platform, T: Diff<P>> Data<P, T> {
[INFO] [stdout]     | ---------------------------------------- method in this implementation
[INFO] [stdout] 109 |     fn update(&mut self, view_id: ViewId) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `weak_data_cell` is never read
[INFO] [stdout]    --> src/view/reactive.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct UpdateCallback<P: Platform, T: Diff<P>> {
[INFO] [stdout]     |        -------------- field in this struct
[INFO] [stdout] 120 |     weak_data_cell: Weak<RefCell<Option<Data<P, T>>>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_signal` is never used
[INFO] [stdout]   --> src/signal.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub trait OnSignal {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 51 |     fn on_signal(&self, target: ViewId) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `broadcast` is never used
[INFO] [stdout]   --> src/signal.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn broadcast(signals: HashSet<Signal>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kano v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `SinkExt` and `StreamExt`
[INFO] [stdout]  --> src/signal.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::{SinkExt, StreamExt};
[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: `style::*`
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use style::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 let mut sender = get_signal_sender(registry);
[INFO] [stdout]    |                     ----^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sender`
[INFO] [stdout]   --> src/signal.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 let mut sender = get_signal_sender(registry);
[INFO] [stdout]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signal.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let (sender, mut receiver) = futures::channel::mpsc::channel::<()>(1);
[INFO] [stdout]    |                      ----^^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]   --> src/signal.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let (sender, mut receiver) = futures::channel::mpsc::channel::<()>(1);
[INFO] [stdout]    |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lib.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn log(s: &str) {
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `update_func` is never read
[INFO] [stdout]    --> src/view/reactive.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | struct Data<P: Platform, T: Diff<P>> {
[INFO] [stdout]     |        ---- field in this struct
[INFO] [stdout] 103 |     actual_state: Option<T::State>,
[INFO] [stdout] 104 |     update_func: Box<dyn Fn(Option<T::State>, &mut P::Cursor) -> T::State>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]    --> src/view/reactive.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | impl<P: Platform, T: Diff<P>> Data<P, T> {
[INFO] [stdout]     | ---------------------------------------- method in this implementation
[INFO] [stdout] 109 |     fn update(&mut self, view_id: ViewId) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `weak_data_cell` is never read
[INFO] [stdout]    --> src/view/reactive.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct UpdateCallback<P: Platform, T: Diff<P>> {
[INFO] [stdout]     |        -------------- field in this struct
[INFO] [stdout] 120 |     weak_data_cell: Weak<RefCell<Option<Data<P, T>>>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `on_signal` is never used
[INFO] [stdout]   --> src/signal.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub trait OnSignal {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 51 |     fn on_signal(&self, target: ViewId) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `broadcast` is never used
[INFO] [stdout]   --> src/signal.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn broadcast(signals: HashSet<Signal>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "2b52ce73281ce2798d0a93b9d91d0b82d12ca56b61cfda6d9673d8bb2d5e6b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b52ce73281ce2798d0a93b9d91d0b82d12ca56b61cfda6d9673d8bb2d5e6b57", kill_on_drop: false }`
[INFO] [stdout] 2b52ce73281ce2798d0a93b9d91d0b82d12ca56b61cfda6d9673d8bb2d5e6b57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c066ec384e867bed1fa09820aed1a1cc81966ec9915b66da9eaefd4ca3926cb3
[INFO] running `Command { std: "docker" "start" "-a" "c066ec384e867bed1fa09820aed1a1cc81966ec9915b66da9eaefd4ca3926cb3", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `SinkExt` and `StreamExt`
[INFO] [stderr]  --> src/signal.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::{SinkExt, StreamExt};
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `style::*`
[INFO] [stderr]   --> src/lib.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub use style::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/signal.rs:25:21
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 let mut sender = get_signal_sender(registry);
[INFO] [stderr]    |                     ----^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sender`
[INFO] [stderr]   --> src/signal.rs:25:21
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 let mut sender = get_signal_sender(registry);
[INFO] [stderr]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sender`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/signal.rs:88:22
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let (sender, mut receiver) = futures::channel::mpsc::channel::<()>(1);
[INFO] [stderr]    |                      ----^^^^^^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receiver`
[INFO] [stderr]   --> src/signal.rs:88:22
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let (sender, mut receiver) = futures::channel::mpsc::channel::<()>(1);
[INFO] [stderr]    |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/lib.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn log(s: &str) {
[INFO] [stderr]    |            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: field `update_func` is never read
[INFO] [stderr]    --> src/view/reactive.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 102 | struct Data<P: Platform, T: Diff<P>> {
[INFO] [stderr]     |        ---- field in this struct
[INFO] [stderr] 103 |     actual_state: Option<T::State>,
[INFO] [stderr] 104 |     update_func: Box<dyn Fn(Option<T::State>, &mut P::Cursor) -> T::State>,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `update` is never used
[INFO] [stderr]    --> src/view/reactive.rs:109:8
[INFO] [stderr]     |
[INFO] [stderr] 108 | impl<P: Platform, T: Diff<P>> Data<P, T> {
[INFO] [stderr]     | ---------------------------------------- method in this implementation
[INFO] [stderr] 109 |     fn update(&mut self, view_id: ViewId) {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `weak_data_cell` is never read
[INFO] [stderr]    --> src/view/reactive.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 119 | struct UpdateCallback<P: Platform, T: Diff<P>> {
[INFO] [stderr]     |        -------------- field in this struct
[INFO] [stderr] 120 |     weak_data_cell: Weak<RefCell<Option<Data<P, T>>>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `on_signal` is never used
[INFO] [stderr]   --> src/signal.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub trait OnSignal {
[INFO] [stderr]    |           -------- method in this trait
[INFO] [stderr] 51 |     fn on_signal(&self, target: ViewId) -> bool;
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `broadcast` is never used
[INFO] [stderr]   --> src/signal.rs:58:4
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn broadcast(signals: HashSet<Signal>) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `kano` (lib) generated 12 warnings (run `cargo fix --lib -p kano` to apply 7 suggestions)
[INFO] [stderr] warning: `kano` (lib test) generated 12 warnings (12 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kano-7d991c87133b3fe2)
[INFO] [stderr]    Doc-tests kano
[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] [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" "c066ec384e867bed1fa09820aed1a1cc81966ec9915b66da9eaefd4ca3926cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c066ec384e867bed1fa09820aed1a1cc81966ec9915b66da9eaefd4ca3926cb3", kill_on_drop: false }`
[INFO] [stdout] c066ec384e867bed1fa09820aed1a1cc81966ec9915b66da9eaefd4ca3926cb3
