[INFO] fetching crate dioxus-core 0.1.0...
[INFO] checking dioxus-core-0.1.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate dioxus-core 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate dioxus-core 0.1.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dioxus-core 0.1.0
[INFO] finished tweaking crates.io crate dioxus-core 0.1.0
[INFO] tweaked toml for crates.io crate dioxus-core 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate dioxus-core 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81ff3572711623b4496e81a98835cc143a6eb2db38aa63358e0d3892131dbbff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "81ff3572711623b4496e81a98835cc143a6eb2db38aa63358e0d3892131dbbff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81ff3572711623b4496e81a98835cc143a6eb2db38aa63358e0d3892131dbbff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81ff3572711623b4496e81a98835cc143a6eb2db38aa63358e0d3892131dbbff", kill_on_drop: false }`
[INFO] [stdout] 81ff3572711623b4496e81a98835cc143a6eb2db38aa63358e0d3892131dbbff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8230691fc38055bea57475c8b14901db47cd65c2208d67860246ea8747d789e0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8230691fc38055bea57475c8b14901db47cd65c2208d67860246ea8747d789e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling dioxus-html-macro v0.1.0
[INFO] [stderr]     Checking dioxus-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/lib.rs:608:9
[INFO] [stdout]     |
[INFO] [stdout] 608 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/lib.rs:608:9
[INFO] [stdout]     |
[INFO] [stdout] 608 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/lib.rs:859:13
[INFO] [stdout]     |
[INFO] [stdout] 859 |         use super::*;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/lib.rs:53:34
[INFO] [stdout]    |
[INFO] [stdout] 53 |         pub fn new_with_props<T>(root: FC<T>) -> Self {
[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: `f`
[INFO] [stdout]    --> src/lib.rs:448:27
[INFO] [stdout]     |
[INFO] [stdout] 448 |             fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lib.rs:465:27
[INFO] [stdout]     |
[INFO] [stdout] 465 |             fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/lib.rs:53:34
[INFO] [stdout]    |
[INFO] [stdout] 53 |         pub fn new_with_props<T>(root: FC<T>) -> Self {
[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: `f`
[INFO] [stdout]    --> src/lib.rs:448:27
[INFO] [stdout]     |
[INFO] [stdout] 448 |             fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lib.rs:465:27
[INFO] [stdout]     |
[INFO] [stdout] 465 |             fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `arena`
[INFO] [stdout]   --> src/lib.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         arena: Arena<Scope>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |         fn new<T>() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:590:17
[INFO] [stdout]     |
[INFO] [stdout] 590 |             let mut text = VNode::Text(VText::new("Hello world"));
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `arena`
[INFO] [stdout]   --> src/lib.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         arena: Arena<Scope>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |         fn new<T>() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dom`
[INFO] [stdout]   --> tests/integration.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let dom = VirtualDom::new(|_| html! { <div>Hello World!</div> });
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_dom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::future::Future`
[INFO] [stdout]  --> examples/simple.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::future::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dom`
[INFO] [stdout]   --> examples/simple.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let dom = VirtualDom::new_with_props(root);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_dom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `element_node`
[INFO] [stdout]   --> examples/simple.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |             if let Some(ref mut element_node) = node_0.as_velement_mut() {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_element_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_3`
[INFO] [stdout]   --> examples/simple.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let node_3 = VNode::Component(VComponent {});
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> examples/simple.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn root(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> examples/simple.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn Head(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> examples/simple.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn Body(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> examples/simple.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut v = 10_i32;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> examples/simple.rs:84:11
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn Footer(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/simple.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut node_2 = VNode::element("button");
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/simple.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut v = 10_i32;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `VirtualNode`
[INFO] [stdout]  --> examples/simple.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | type VirtualNode = VNode;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> examples/simple.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Head`
[INFO] [stdout]   --> examples/simple.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn Head(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Body`
[INFO] [stdout]   --> examples/simple.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn Body(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Footer`
[INFO] [stdout]   --> examples/simple.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn Footer(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Head` should have a snake case name
[INFO] [stdout]   --> examples/simple.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn Head(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `head`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Body` should have a snake case name
[INFO] [stdout]   --> examples/simple.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn Body(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |    ^^^^ help: convert the identifier to snake case: `body`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Footer` should have a snake case name
[INFO] [stdout]   --> examples/simple.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn Footer(ctx: &mut Context<Props>) -> VNode {
[INFO] [stdout]    |    ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `footer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.74s
[INFO] running `Command { std: "docker" "inspect" "8230691fc38055bea57475c8b14901db47cd65c2208d67860246ea8747d789e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8230691fc38055bea57475c8b14901db47cd65c2208d67860246ea8747d789e0", kill_on_drop: false }`
[INFO] [stdout] 8230691fc38055bea57475c8b14901db47cd65c2208d67860246ea8747d789e0