[INFO] fetching crate web-view 0.4.4...
[INFO] checking web-view-0.4.4 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate web-view 0.4.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate web-view 0.4.4 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate web-view 0.4.4
[INFO] finished tweaking crates.io crate web-view 0.4.4
[INFO] tweaked toml for crates.io crate web-view 0.4.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a681a98e982bf48a3b2c4e7c62e1cfb099cf3514d6ad1d7bef2318ce23f6b940
[INFO] running `"docker" "start" "-a" "a681a98e982bf48a3b2c4e7c62e1cfb099cf3514d6ad1d7bef2318ce23f6b940"`
[INFO] [stderr]    Compiling webview-sys v0.1.4
[INFO] [stderr]     Checking web-view v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Custom(Box<CustomError>),
[INFO] [stderr]    |                ^^^^^^^^^^^ help: use `dyn`: `dyn CustomError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:39:32
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:251:25
[INFO] [stderr]     |
[INFO] [stderr] 251 |     invoke_handler: Box<FnMut(&mut WebView<T>, &str) -> WVResult + 'a>,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut WebView<T>, &str) -> WVResult + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Custom(Box<CustomError>),
[INFO] [stderr]    |                ^^^^^^^^^^^ help: use `dyn`: `dyn CustomError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:39:32
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:251:25
[INFO] [stderr]     |
[INFO] [stderr] 251 |     invoke_handler: Box<FnMut(&mut WebView<T>, &str) -> WVResult + 'a>,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut WebView<T>, &str) -> WVResult + 'a`
[INFO] [stderr] 
[INFO] [stderr] error: unused boxed boxed `std::ops::FnMut` trait object in field `invoke_handler` that must be used
[INFO] [stderr]    --> src/lib.rs:302:17
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 Box::<UserData<T>>::from_raw(user_data_ptr);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr] error: unused boxed `std::result::Result` in field `result` that must be used
[INFO] [stderr]    --> src/lib.rs:302:17
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 Box::<UserData<T>>::from_raw(user_data_ptr);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `web-view`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: unused boxed boxed `std::ops::FnMut` trait object in field `invoke_handler` that must be used
[INFO] [stderr]    --> src/lib.rs:302:17
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 Box::<UserData<T>>::from_raw(user_data_ptr);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr] error: unused boxed `std::result::Result` in field `result` that must be used
[INFO] [stderr]    --> src/lib.rs:302:17
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 Box::<UserData<T>>::from_raw(user_data_ptr);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `web-view`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a681a98e982bf48a3b2c4e7c62e1cfb099cf3514d6ad1d7bef2318ce23f6b940"`
[INFO] running `"docker" "rm" "-f" "a681a98e982bf48a3b2c4e7c62e1cfb099cf3514d6ad1d7bef2318ce23f6b940"`
[INFO] [stdout] a681a98e982bf48a3b2c4e7c62e1cfb099cf3514d6ad1d7bef2318ce23f6b940