[INFO] fetching crate virtual-dom-rs 0.6.14...
[INFO] checking virtual-dom-rs-0.6.14 against beta for pr-78714
[INFO] extracting crate virtual-dom-rs 0.6.14 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate virtual-dom-rs 0.6.14 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate virtual-dom-rs 0.6.14
[INFO] finished tweaking crates.io crate virtual-dom-rs 0.6.14
[INFO] tweaked toml for crates.io crate virtual-dom-rs 0.6.14 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0422300746f00b2be6990c90d95eeada475b2f0fc616cc54fdd7d93617586e71
[INFO] running `Command { std: "docker" "start" "-a" "0422300746f00b2be6990c90d95eeada475b2f0fc616cc54fdd7d93617586e71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0422300746f00b2be6990c90d95eeada475b2f0fc616cc54fdd7d93617586e71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0422300746f00b2be6990c90d95eeada475b2f0fc616cc54fdd7d93617586e71", kill_on_drop: false }`
[INFO] [stdout] 0422300746f00b2be6990c90d95eeada475b2f0fc616cc54fdd7d93617586e71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49c57cd3c96e93dc501598ffc83a3078da4b0d8b1891dcf1689dd0101da9f6fe
[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" "49c57cd3c96e93dc501598ffc83a3078da4b0d8b1891dcf1689dd0101da9f6fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling html-validation v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking web-sys v0.3.45
[INFO] [stderr]     Checking wasm-bindgen-futures v0.3.27
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.50
[INFO] [stderr]     Checking wasm-bindgen-test v0.2.50
[INFO] [stderr]    Compiling html-macro v0.1.9
[INFO] [stderr]     Checking virtual-node v0.2.7
[INFO] [stderr]     Checking virtual-dom-rs v0.6.14 (/opt/rustwide/workdir)
[INFO] [stdout] error: new is not a valid HTML tag.
[INFO] [stdout]                 
[INFO] [stdout] If you are trying to use a valid HTML tag, perhaps there's a typo?
[INFO] [stdout]                 
[INFO] [stdout] If you are trying to use a custom component, please capitalize the component name.
[INFO] [stdout]                 
[INFO] [stdout] custom components: https://chinedufn.github.io/percy/html-macro/custom-components/index.html
[INFO] [stdout]    --> src/diff/mod.rs:198:41
[INFO] [stdout]     |
[INFO] [stdout] 198 |             new: html! { <div> <b></b> <new></new> </div> },
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: new is not a valid HTML tag.
[INFO] [stdout]                 
[INFO] [stdout] If you are trying to use a valid HTML tag, perhaps there's a typo?
[INFO] [stdout]                 
[INFO] [stdout] If you are trying to use a custom component, please capitalize the component name.
[INFO] [stdout]                 
[INFO] [stdout] custom components: https://chinedufn.github.io/percy/html-macro/custom-components/index.html
[INFO] [stdout]    --> src/diff/mod.rs:199:68
[INFO] [stdout]     |
[INFO] [stdout] 199 |             expected: vec![Patch::AppendChildren(0, vec![&html! { <new></new> }])],
[INFO] [stdout]     |                                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![cfg_attr(test, feature(proc_macro_hygiene))]
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `virtual-dom-rs`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> tests/closures.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::DefaultHasher`
[INFO] [stdout]   --> tests/closures.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::collections::hash_map::DefaultHasher;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> tests/dom_updater.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::DefaultHasher`
[INFO] [stdout]   --> tests/dom_updater.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::collections::hash_map::DefaultHasher;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Hash`, `Hasher`
[INFO] [stdout]   --> tests/dom_updater.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::hash::{Hash, Hasher};
[INFO] [stdout]    |                 ^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::JsCast`
[INFO] [stdout]   --> tests/dom_updater.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use wasm_bindgen::JsCast;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> tests/events.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> tests/events.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::prelude::*`
[INFO] [stdout]   --> tests/events.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use wasm_bindgen::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::JsCast`
[INFO] [stdout]   --> tests/events.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use wasm_bindgen::JsCast;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> tests/create_element.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MouseEvent`
[INFO] [stdout]   --> tests/create_element.rs:15:44
[INFO] [stdout]    |
[INFO] [stdout] 15 | use web_sys::{Element, Event, EventTarget, MouseEvent};
[INFO] [stdout]    |                                            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/create_element.rs:53:47
[INFO] [stdout]    |
[INFO] [stdout] 53 |     assert!(div.class_list().contains("two"));;
[INFO] [stdout]    |                                               ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/create_element.rs:54:51
[INFO] [stdout]    |
[INFO] [stdout] 54 |     assert!(div.class_list().contains("classes"));;
[INFO] [stdout]    |                                                   ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> tests/diff_patch.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "49c57cd3c96e93dc501598ffc83a3078da4b0d8b1891dcf1689dd0101da9f6fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49c57cd3c96e93dc501598ffc83a3078da4b0d8b1891dcf1689dd0101da9f6fe", kill_on_drop: false }`
[INFO] [stdout] 49c57cd3c96e93dc501598ffc83a3078da4b0d8b1891dcf1689dd0101da9f6fe