Dec 12 05:13:06.353 INFO checking virtual-node-0.0.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 05:13:06.353 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 05:13:06.748 INFO [stdout] 663f4f21dcd8bb200571c0d2e6ae4983ffd7b1e27bca119eaff59b1fa36d873d
Dec 12 05:13:06.754 INFO running `"docker" "start" "-a" "663f4f21dcd8bb200571c0d2e6ae4983ffd7b1e27bca119eaff59b1fa36d873d"`
Dec 12 05:13:08.484 INFO [stderr] usermod: no changes
Dec 12 05:13:08.708 INFO [stderr]    Compiling wasm-bindgen v0.2.29
Dec 12 05:13:08.709 INFO [stderr]    Compiling backtrace-sys v0.1.24
Dec 12 05:13:08.709 INFO [stderr]    Compiling nom v4.1.1
Dec 12 05:13:08.717 INFO [stderr]    Compiling wasm-bindgen-backend v0.2.29
Dec 12 05:13:08.717 INFO [stderr]    Compiling env_logger v0.6.0
Dec 12 05:13:10.886 INFO [stderr]    Compiling backtrace v0.3.11
Dec 12 05:13:14.000 INFO [stderr]    Compiling failure v0.1.3
Dec 12 05:13:16.969 INFO [stderr]    Compiling weedle v0.8.0
Dec 12 05:13:24.352 INFO [stderr]    Compiling wasm-bindgen-macro-support v0.2.29
Dec 12 05:13:30.620 INFO [stderr]    Compiling wasm-bindgen-macro v0.2.29
Dec 12 05:13:36.624 INFO [stderr]    Compiling wasm-bindgen-webidl v0.2.23
Dec 12 05:13:38.232 INFO [stderr]     Checking js-sys v0.3.6
Dec 12 05:13:50.060 INFO [stderr]    Compiling web-sys v0.3.6
Dec 12 05:14:04.874 INFO [stderr]     Checking virtual-node v0.0.1 (/source)
Dec 12 05:14:05.876 INFO [stderr] warning: unused import: `js_sys::Function`
Dec 12 05:14:05.877 INFO [stderr]   --> src/lib.rs:23:5
Dec 12 05:14:05.877 INFO [stderr]    |
Dec 12 05:14:05.877 INFO [stderr] 23 | use js_sys::Function;
Dec 12 05:14:05.877 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 12 05:14:05.877 INFO [stderr]    |
Dec 12 05:14:05.877 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 05:14:05.877 INFO [stderr] 
Dec 12 05:14:05.877 INFO [stderr] warning: unused import: `js_sys::Function`
Dec 12 05:14:05.877 INFO [stderr]  --> src/browser_events.rs:8:5
Dec 12 05:14:05.877 INFO [stderr]   |
Dec 12 05:14:05.877 INFO [stderr] 8 | use js_sys::Function;
Dec 12 05:14:05.877 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 12 05:14:05.877 INFO [stderr] 
Dec 12 05:14:05.877 INFO [stderr] warning: unused import: `wasm_bindgen::JsCast`
Dec 12 05:14:05.877 INFO [stderr]   --> src/browser_events.rs:10:5
Dec 12 05:14:05.877 INFO [stderr]    |
Dec 12 05:14:05.877 INFO [stderr] 10 | use wasm_bindgen::JsCast;
Dec 12 05:14:05.877 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 05:14:05.877 INFO [stderr] 
Dec 12 05:14:06.093 INFO [stderr] warning: variable does not need to be mutable
Dec 12 05:14:06.093 INFO [stderr]    --> src/lib.rs:217:13
Dec 12 05:14:06.093 INFO [stderr]     |
Dec 12 05:14:06.093 INFO [stderr] 217 |         let mut callback = self.browser_events.oninput.borrow_mut().take();
Dec 12 05:14:06.093 INFO [stderr]     |             ----^^^^^^^^
Dec 12 05:14:06.093 INFO [stderr]     |             |
Dec 12 05:14:06.093 INFO [stderr]     |             help: remove this `mut`
Dec 12 05:14:06.093 INFO [stderr]     |
Dec 12 05:14:06.093 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 05:14:06.093 INFO [stderr] 
Dec 12 05:14:06.144 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 05:14:06.144 INFO [stderr]    --> src/lib.rs:373:13
Dec 12 05:14:06.144 INFO [stderr]     |
Dec 12 05:14:06.144 INFO [stderr] 373 |             write!(f, ">");
Dec 12 05:14:06.144 INFO [stderr]     |             ^^^^^^^^^^^^^^^
Dec 12 05:14:06.145 INFO [stderr]     |
Dec 12 05:14:06.145 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 05:14:06.145 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 05:14:06.145 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 12 05:14:06.145 INFO [stderr] 
Dec 12 05:14:06.337 INFO [stderr] warning: unused import: `js_sys::Function`
Dec 12 05:14:06.337 INFO [stderr]   --> src/lib.rs:23:5
Dec 12 05:14:06.337 INFO [stderr]    |
Dec 12 05:14:06.337 INFO [stderr] 23 | use js_sys::Function;
Dec 12 05:14:06.337 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 12 05:14:06.337 INFO [stderr]    |
Dec 12 05:14:06.337 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 05:14:06.337 INFO [stderr] 
Dec 12 05:14:06.337 INFO [stderr] warning: unused import: `js_sys::Function`
Dec 12 05:14:06.337 INFO [stderr]  --> src/browser_events.rs:8:5
Dec 12 05:14:06.337 INFO [stderr]   |
Dec 12 05:14:06.337 INFO [stderr] 8 | use js_sys::Function;
Dec 12 05:14:06.337 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 12 05:14:06.337 INFO [stderr] 
Dec 12 05:14:06.337 INFO [stderr] warning: unused import: `wasm_bindgen::JsCast`
Dec 12 05:14:06.338 INFO [stderr]   --> src/browser_events.rs:10:5
Dec 12 05:14:06.338 INFO [stderr]    |
Dec 12 05:14:06.338 INFO [stderr] 10 | use wasm_bindgen::JsCast;
Dec 12 05:14:06.338 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 05:14:06.338 INFO [stderr] 
Dec 12 05:14:06.338 INFO [stderr] warning: unused import: `super::*`
Dec 12 05:14:06.338 INFO [stderr]    --> src/lib.rs:405:9
Dec 12 05:14:06.338 INFO [stderr]     |
Dec 12 05:14:06.338 INFO [stderr] 405 |     use super::*;
Dec 12 05:14:06.338 INFO [stderr]     |         ^^^^^^^^
Dec 12 05:14:06.338 INFO [stderr] 
Dec 12 05:14:06.464 INFO [stderr] warning: variable does not need to be mutable
Dec 12 05:14:06.464 INFO [stderr]    --> src/lib.rs:217:13
Dec 12 05:14:06.464 INFO [stderr]     |
Dec 12 05:14:06.464 INFO [stderr] 217 |         let mut callback = self.browser_events.oninput.borrow_mut().take();
Dec 12 05:14:06.465 INFO [stderr]     |             ----^^^^^^^^
Dec 12 05:14:06.465 INFO [stderr]     |             |
Dec 12 05:14:06.465 INFO [stderr]     |             help: remove this `mut`
Dec 12 05:14:06.465 INFO [stderr]     |
Dec 12 05:14:06.466 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 05:14:06.466 INFO [stderr] 
Dec 12 05:14:06.494 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 05:14:06.494 INFO [stderr]    --> src/lib.rs:373:13
Dec 12 05:14:06.494 INFO [stderr]     |
Dec 12 05:14:06.494 INFO [stderr] 373 |             write!(f, ">");
Dec 12 05:14:06.494 INFO [stderr]     |             ^^^^^^^^^^^^^^^
Dec 12 05:14:06.495 INFO [stderr]     |
Dec 12 05:14:06.495 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 05:14:06.495 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 05:14:06.495 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 12 05:14:06.496 INFO [stderr] 
Dec 12 05:14:06.521 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.02s
Dec 12 05:14:06.533 INFO [stderr] su: No module specific data is present
Dec 12 05:14:07.956 INFO running `"docker" "inspect" "663f4f21dcd8bb200571c0d2e6ae4983ffd7b1e27bca119eaff59b1fa36d873d"`
Dec 12 05:14:08.244 INFO running `"docker" "rm" "-f" "663f4f21dcd8bb200571c0d2e6ae4983ffd7b1e27bca119eaff59b1fa36d873d"`
Dec 12 05:14:08.622 INFO [stdout] 663f4f21dcd8bb200571c0d2e6ae4983ffd7b1e27bca119eaff59b1fa36d873d