[INFO] cloning repository https://github.com/CanvasPads/concavity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CanvasPads/concavity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCanvasPads%2Fconcavity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCanvasPads%2Fconcavity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 622f1ea56e70c372fa1a964232c5ffa0f5f5a61b
[INFO] checking CanvasPads/concavity against master#8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCanvasPads%2Fconcavity" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CanvasPads/concavity
[INFO] finished tweaking git repo https://github.com/CanvasPads/concavity
[INFO] tweaked toml for git repo https://github.com/CanvasPads/concavity written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CanvasPads/concavity on toolchain 8f21a5c92ea55c348c275a1bc4fedbdf181e0d64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CanvasPads/concavity 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" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a28d5d9fe0ac690e01cabd6e1dae7f8e27a5891424ee7827b2229535a886033
[INFO] running `Command { std: "docker" "start" "-a" "3a28d5d9fe0ac690e01cabd6e1dae7f8e27a5891424ee7827b2229535a886033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a28d5d9fe0ac690e01cabd6e1dae7f8e27a5891424ee7827b2229535a886033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a28d5d9fe0ac690e01cabd6e1dae7f8e27a5891424ee7827b2229535a886033", kill_on_drop: false }`
[INFO] [stdout] 3a28d5d9fe0ac690e01cabd6e1dae7f8e27a5891424ee7827b2229535a886033
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97f7980b6c99859fdc2367d14de14335e17792ee805e6612e7a7dfdd443cbd54
[INFO] running `Command { std: "docker" "start" "-a" "97f7980b6c99859fdc2367d14de14335e17792ee805e6612e7a7dfdd443cbd54", kill_on_drop: false }`
[INFO] [stderr]     Checking concavity v0.1.0 (/opt/rustwide/workdir/crates/concavity)
[INFO] [stdout] error[E0277]: the trait bound `VStack: app::HasView` is not satisfied
[INFO] [stdout]   --> crates/concavity/src/app.rs:65:22
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl ViewElement for VStack {
[INFO] [stdout]    |                      ^^^^^^ the trait `app::HasView` is not implemented for `VStack`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `app::HasView` is implemented for `Vstack`
[INFO] [stdout] note: required by a bound in `app::ViewElement`
[INFO] [stdout]   --> crates/concavity/src/app.rs:35:32
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait ViewElement: Sized + HasView {
[INFO] [stdout]    |                                ^^^^^^^ required by this bound in `ViewElement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `view` has an incompatible type for trait
[INFO] [stdout]   --> crates/concavity/src/elements.rs:9:13
[INFO] [stdout]    |
[INFO] [stdout] 9  |     fn view(self) -> View {
[INFO] [stdout]    |             ^^^^ expected `&mut Vstack`, found `Vstack`
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> crates/concavity/src/app.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn view(&mut self) -> View {
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    = note: expected signature `fn(&mut Vstack) -> app::View`
[INFO] [stdout]               found signature `fn(Vstack) -> app::View`
[INFO] [stdout] help: change the self-receiver type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 9  |     fn view(&mut self) -> View {
[INFO] [stdout]    |             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> crates/concavity/src/app.rs:10:30
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn render(&mut self, root: impl ViewElement) {}
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]   --> crates/concavity/src/app.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn padding(self, top: f32, bottom: f32, left: f32, right: f32) -> Self {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]   --> crates/concavity/src/app.rs:36:32
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn padding(self, top: f32, bottom: f32, left: f32, right: f32) -> Self {
[INFO] [stdout]    |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> crates/concavity/src/app.rs:36:45
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn padding(self, top: f32, bottom: f32, left: f32, right: f32) -> Self {
[INFO] [stdout]    |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> crates/concavity/src/app.rs:36:56
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn padding(self, top: f32, bottom: f32, left: f32, right: f32) -> Self {
[INFO] [stdout]    |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> crates/concavity/src/app.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn child(self, child: impl ViewElement) -> Self {
[INFO] [stdout]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:36
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[INFO] [stdout]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:49
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[INFO] [stdout]    |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:60
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[INFO] [stdout]    |                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[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] error[E0277]: the trait bound `VStack: HasView` is not satisfied
[INFO] [stdout]   --> crates/concavity/src/app.rs:65:22
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl ViewElement for VStack {
[INFO] [stdout]    |                      ^^^^^^ the trait `HasView` is not implemented for `VStack`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `HasView` is implemented for `Vstack`
[INFO] [stdout] note: required by a bound in `ViewElement`
[INFO] [stdout]   --> crates/concavity/src/app.rs:35:32
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait ViewElement: Sized + HasView {
[INFO] [stdout]    |                                ^^^^^^^ required by this bound in `ViewElement`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `view` has an incompatible type for trait
[INFO] [stdout]   --> crates/concavity/src/elements.rs:9:13
[INFO] [stdout]    |
[INFO] [stdout] 9  |     fn view(self) -> View {
[INFO] [stdout]    |             ^^^^ expected `&mut Vstack`, found `Vstack`
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> crates/concavity/src/app.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn view(&mut self) -> View {
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    = note: expected signature `fn(&mut Vstack) -> View`
[INFO] [stdout]               found signature `fn(Vstack) -> View`
[INFO] [stdout] help: change the self-receiver type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 9  |     fn view(&mut self) -> View {
[INFO] [stdout]    |             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `self.view` which is behind a mutable reference
[INFO] [stdout]   --> crates/concavity/src/app.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |             self.view.with(render)
[INFO] [stdout]    |             ^^^^^^^^^ ------------ `self.view` moved due to this method call
[INFO] [stdout]    |             |
[INFO] [stdout]    |             move occurs because `self.view` has type `app::View`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] note: `app::View::with` takes ownership of the receiver `self`, which moves `self.view`
[INFO] [stdout]   --> crates/concavity/src/app.rs:29:21
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn with(mut self, mut elm: impl ViewElement) -> Self {
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout] help: you can `clone` the value and consume it, but this might not be your desired behavior
[INFO] [stdout]    |
[INFO] [stdout] 99 |             <app::View as Clone>::clone(&self.view).with(render)
[INFO] [stdout]    |             +++++++++++++++++++++++++++++         +
[INFO] [stdout] help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout]    |
[INFO] [stdout] 99 |             self.view.clone().with(render)
[INFO] [stdout]    |                      ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0277, E0507.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> crates/concavity/src/app.rs:10:30
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn render(&mut self, root: impl ViewElement) {}
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]   --> crates/concavity/src/app.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn padding(self, top: f32, bottom: f32, left: f32, right: f32) -> Self {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]   --> crates/concavity/src/app.rs:36:32
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn padding(self, top: f32, bottom: f32, left: f32, right: f32) -> Self {
[INFO] [stdout]    |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> crates/concavity/src/app.rs:36:45
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn padding(self, top: f32, bottom: f32, left: f32, right: f32) -> Self {
[INFO] [stdout]    |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> crates/concavity/src/app.rs:36:56
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn padding(self, top: f32, bottom: f32, left: f32, right: f32) -> Self {
[INFO] [stdout]    |                                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `child`
[INFO] [stdout]   --> crates/concavity/src/app.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn child(self, child: impl ViewElement) -> Self {
[INFO] [stdout]    |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:36
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[INFO] [stdout]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:49
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[INFO] [stdout]    |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:60
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[INFO] [stdout]    |                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> crates/concavity/src/app.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn padding(mut self, top: f32, bottom: f32, left: f32, right: f32) -> T {
[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] Some errors have detailed explanations: E0053, E0277.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `concavity` (lib test) due to 3 previous errors; 11 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `concavity` (lib) due to 2 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "97f7980b6c99859fdc2367d14de14335e17792ee805e6612e7a7dfdd443cbd54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97f7980b6c99859fdc2367d14de14335e17792ee805e6612e7a7dfdd443cbd54", kill_on_drop: false }`
[INFO] [stdout] 97f7980b6c99859fdc2367d14de14335e17792ee805e6612e7a7dfdd443cbd54
