Dec 18 09:32:43.704 INFO checking virtual-node-0.0.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 09:32:43.705 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/virtual-node/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 09:32:43.931 INFO [stdout] 349932df1d5a3fd32e000e1e3bdebcd22c39483587c9f3a01914308359a4ab98
Dec 18 09:32:43.933 INFO running `"docker" "start" "-a" "349932df1d5a3fd32e000e1e3bdebcd22c39483587c9f3a01914308359a4ab98"`
Dec 18 09:32:45.188 INFO [stderr]    Compiling wasm-bindgen v0.2.29
Dec 18 09:32:45.196 INFO [stderr]    Compiling sourcefile v0.1.4
Dec 18 09:32:45.196 INFO [stderr]    Compiling nom v4.1.1
Dec 18 09:32:45.196 INFO [stderr]    Compiling wasm-bindgen-backend v0.2.29
Dec 18 09:32:45.196 INFO [stderr]    Compiling env_logger v0.6.0
Dec 18 09:32:45.196 INFO [stderr]    Compiling failure v0.1.3
Dec 18 09:32:48.645 INFO [stderr]    Compiling weedle v0.8.0
Dec 18 09:32:54.240 INFO [stderr]    Compiling wasm-bindgen-macro-support v0.2.29
Dec 18 09:32:58.468 INFO [stderr]    Compiling wasm-bindgen-macro v0.2.29
Dec 18 09:33:01.512 INFO [stderr]     Checking js-sys v0.3.6
Dec 18 09:33:03.264 INFO [stderr]    Compiling wasm-bindgen-webidl v0.2.23
Dec 18 09:33:10.816 INFO [stderr]    Compiling web-sys v0.3.6
Dec 18 09:33:22.762 INFO [stderr]     Checking virtual-node v0.0.1 (/opt/crater/workdir)
Dec 18 09:33:23.243 INFO [stderr] warning: unused import: `js_sys::Function`
Dec 18 09:33:23.243 INFO [stderr]   --> src/lib.rs:23:5
Dec 18 09:33:23.244 INFO [stderr]    |
Dec 18 09:33:23.244 INFO [stderr] 23 | use js_sys::Function;
Dec 18 09:33:23.244 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 09:33:23.244 INFO [stderr]    |
Dec 18 09:33:23.245 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 09:33:23.245 INFO [stderr] 
Dec 18 09:33:23.247 INFO [stderr] warning: unused import: `js_sys::Function`
Dec 18 09:33:23.247 INFO [stderr]  --> src/browser_events.rs:8:5
Dec 18 09:33:23.247 INFO [stderr]   |
Dec 18 09:33:23.247 INFO [stderr] 8 | use js_sys::Function;
Dec 18 09:33:23.248 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 18 09:33:23.248 INFO [stderr] 
Dec 18 09:33:23.248 INFO [stderr] warning: unused import: `wasm_bindgen::JsCast`
Dec 18 09:33:23.248 INFO [stderr]   --> src/browser_events.rs:10:5
Dec 18 09:33:23.249 INFO [stderr]    |
Dec 18 09:33:23.249 INFO [stderr] 10 | use wasm_bindgen::JsCast;
Dec 18 09:33:23.249 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 09:33:23.249 INFO [stderr] 
Dec 18 09:33:23.300 INFO [stderr] warning: unused import: `js_sys::Function`
Dec 18 09:33:23.300 INFO [stderr]   --> src/lib.rs:23:5
Dec 18 09:33:23.300 INFO [stderr]    |
Dec 18 09:33:23.300 INFO [stderr] 23 | use js_sys::Function;
Dec 18 09:33:23.300 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 09:33:23.300 INFO [stderr]    |
Dec 18 09:33:23.300 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 09:33:23.300 INFO [stderr] 
Dec 18 09:33:23.300 INFO [stderr] warning: unused import: `js_sys::Function`
Dec 18 09:33:23.300 INFO [stderr]  --> src/browser_events.rs:8:5
Dec 18 09:33:23.300 INFO [stderr]   |
Dec 18 09:33:23.301 INFO [stderr] 8 | use js_sys::Function;
Dec 18 09:33:23.301 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 18 09:33:23.301 INFO [stderr] 
Dec 18 09:33:23.301 INFO [stderr] warning: unused import: `wasm_bindgen::JsCast`
Dec 18 09:33:23.301 INFO [stderr]   --> src/browser_events.rs:10:5
Dec 18 09:33:23.301 INFO [stderr]    |
Dec 18 09:33:23.301 INFO [stderr] 10 | use wasm_bindgen::JsCast;
Dec 18 09:33:23.301 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 09:33:23.301 INFO [stderr] 
Dec 18 09:33:23.301 INFO [stderr] warning: unused import: `super::*`
Dec 18 09:33:23.301 INFO [stderr]    --> src/lib.rs:405:9
Dec 18 09:33:23.301 INFO [stderr]     |
Dec 18 09:33:23.301 INFO [stderr] 405 |     use super::*;
Dec 18 09:33:23.301 INFO [stderr]     |         ^^^^^^^^
Dec 18 09:33:23.301 INFO [stderr] 
Dec 18 09:33:23.395 INFO [stderr] warning: variable does not need to be mutable
Dec 18 09:33:23.395 INFO [stderr]    --> src/lib.rs:217:13
Dec 18 09:33:23.395 INFO [stderr]     |
Dec 18 09:33:23.395 INFO [stderr] 217 |         let mut callback = self.browser_events.oninput.borrow_mut().take();
Dec 18 09:33:23.395 INFO [stderr]     |             ----^^^^^^^^
Dec 18 09:33:23.395 INFO [stderr]     |             |
Dec 18 09:33:23.395 INFO [stderr]     |             help: remove this `mut`
Dec 18 09:33:23.400 INFO [stderr]     |
Dec 18 09:33:23.400 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 09:33:23.401 INFO [stderr] 
Dec 18 09:33:23.456 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:33:23.456 INFO [stderr]    --> src/lib.rs:373:13
Dec 18 09:33:23.456 INFO [stderr]     |
Dec 18 09:33:23.456 INFO [stderr] 373 |             write!(f, ">");
Dec 18 09:33:23.456 INFO [stderr]     |             ^^^^^^^^^^^^^^^
Dec 18 09:33:23.456 INFO [stderr]     |
Dec 18 09:33:23.456 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 09:33:23.456 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:33:23.456 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 18 09:33:23.456 INFO [stderr] 
Dec 18 09:33:23.462 INFO [stderr] warning: variable does not need to be mutable
Dec 18 09:33:23.462 INFO [stderr]    --> src/lib.rs:217:13
Dec 18 09:33:23.462 INFO [stderr]     |
Dec 18 09:33:23.462 INFO [stderr] 217 |         let mut callback = self.browser_events.oninput.borrow_mut().take();
Dec 18 09:33:23.462 INFO [stderr]     |             ----^^^^^^^^
Dec 18 09:33:23.462 INFO [stderr]     |             |
Dec 18 09:33:23.462 INFO [stderr]     |             help: remove this `mut`
Dec 18 09:33:23.462 INFO [stderr]     |
Dec 18 09:33:23.462 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 09:33:23.462 INFO [stderr] 
Dec 18 09:33:23.523 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:33:23.524 INFO [stderr]    --> src/lib.rs:373:13
Dec 18 09:33:23.524 INFO [stderr]     |
Dec 18 09:33:23.524 INFO [stderr] 373 |             write!(f, ">");
Dec 18 09:33:23.524 INFO [stderr]     |             ^^^^^^^^^^^^^^^
Dec 18 09:33:23.525 INFO [stderr]     |
Dec 18 09:33:23.525 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 09:33:23.525 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:33:23.526 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 18 09:33:23.526 INFO [stderr] 
Dec 18 09:33:23.606 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.56s
Dec 18 09:33:24.240 INFO running `"docker" "inspect" "349932df1d5a3fd32e000e1e3bdebcd22c39483587c9f3a01914308359a4ab98"`
Dec 18 09:33:24.382 INFO running `"docker" "rm" "-f" "349932df1d5a3fd32e000e1e3bdebcd22c39483587c9f3a01914308359a4ab98"`
Dec 18 09:33:24.507 INFO [stdout] 349932df1d5a3fd32e000e1e3bdebcd22c39483587c9f3a01914308359a4ab98