[INFO] fetching crate kano 0.0.1...
[INFO] testing kano-0.0.1 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate kano 0.0.1 into /workspace/builds/worker-7-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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kano 0.0.1 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kano-macros v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5afc19c9576fd6c3504b7d5e4b638b0fd8166c9b22f45edcb224d3a1b3e18042
[INFO] running `Command { std: "docker" "start" "-a" "5afc19c9576fd6c3504b7d5e4b638b0fd8166c9b22f45edcb224d3a1b3e18042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5afc19c9576fd6c3504b7d5e4b638b0fd8166c9b22f45edcb224d3a1b3e18042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5afc19c9576fd6c3504b7d5e4b638b0fd8166c9b22f45edcb224d3a1b3e18042", kill_on_drop: false }`
[INFO] [stdout] 5afc19c9576fd6c3504b7d5e4b638b0fd8166c9b22f45edcb224d3a1b3e18042
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3c3432309999ac99d84449aecbfd69de1652d2e08657b7ab9773868780f04c2
[INFO] running `Command { std: "docker" "start" "-a" "e3c3432309999ac99d84449aecbfd69de1652d2e08657b7ab9773868780f04c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling kano-macros v0.0.1
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[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 10.70s
[INFO] running `Command { std: "docker" "inspect" "e3c3432309999ac99d84449aecbfd69de1652d2e08657b7ab9773868780f04c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c3432309999ac99d84449aecbfd69de1652d2e08657b7ab9773868780f04c2", kill_on_drop: false }`
[INFO] [stdout] e3c3432309999ac99d84449aecbfd69de1652d2e08657b7ab9773868780f04c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6257d45dedd040f89f5ea2e1321bd13365d6ce8bf34f6f63dfc33a060aab163
[INFO] running `Command { std: "docker" "start" "-a" "f6257d45dedd040f89f5ea2e1321bd13365d6ce8bf34f6f63dfc33a060aab163", 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 0.48s
[INFO] running `Command { std: "docker" "inspect" "f6257d45dedd040f89f5ea2e1321bd13365d6ce8bf34f6f63dfc33a060aab163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6257d45dedd040f89f5ea2e1321bd13365d6ce8bf34f6f63dfc33a060aab163", kill_on_drop: false }`
[INFO] [stdout] f6257d45dedd040f89f5ea2e1321bd13365d6ce8bf34f6f63dfc33a060aab163
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0f1e4df6062b425ed190e319da67608d5ad29ba31395d892ad279195dbdbe2bb
[INFO] running `Command { std: "docker" "start" "-a" "0f1e4df6062b425ed190e319da67608d5ad29ba31395d892ad279195dbdbe2bb", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `SinkExt` and `StreamExt`
[INFO] [stdout] 
[INFO] [stderr]  --> src/signal.rs:6:15
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 6 | use futures::{SinkExt, StreamExt};
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |               ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[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-08bb7035a5211424)
[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] running `Command { std: "docker" "inspect" "0f1e4df6062b425ed190e319da67608d5ad29ba31395d892ad279195dbdbe2bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f1e4df6062b425ed190e319da67608d5ad29ba31395d892ad279195dbdbe2bb", kill_on_drop: false }`
[INFO] [stdout] 0f1e4df6062b425ed190e319da67608d5ad29ba31395d892ad279195dbdbe2bb
