[INFO] fetching crate better-web-view 0.6.0...
[INFO] checking better-web-view-0.6.0 against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] extracting crate better-web-view 0.6.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate better-web-view 0.6.0 on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate better-web-view 0.6.0
[INFO] finished tweaking crates.io crate better-web-view 0.6.0
[INFO] tweaked toml for crates.io crate better-web-view 0.6.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 445a750d174d8654ca870b8c18e1a5a1e1fa70638b8df82e4e159283b4606489
[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" "445a750d174d8654ca870b8c18e1a5a1e1fa70638b8df82e4e159283b4606489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "445a750d174d8654ca870b8c18e1a5a1e1fa70638b8df82e4e159283b4606489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "445a750d174d8654ca870b8c18e1a5a1e1fa70638b8df82e4e159283b4606489", kill_on_drop: false }`
[INFO] [stdout] 445a750d174d8654ca870b8c18e1a5a1e1fa70638b8df82e4e159283b4606489
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7081443a1a1826575aff1ab41457136b2827cafa7023f237008c3fca82abda7
[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" "e7081443a1a1826575aff1ab41457136b2827cafa7023f237008c3fca82abda7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]    Compiling webview-sys v0.1.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking better-web-view v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Custom(Box<CustomError>),
[INFO] [stdout]    |                ^^^^^^^^^^^ help: use `dyn`: `dyn CustomError`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:241:25
[INFO] [stdout]     |
[INFO] [stdout] 241 |     invoke_handler: Box<FnMut(&mut WebView<T>, &str) -> WVResult + 'a>,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut WebView<T>, &str) -> WVResult + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Custom(Box<CustomError>),
[INFO] [stdout]    |                ^^^^^^^^^^^ help: use `dyn`: `dyn CustomError`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:241:25
[INFO] [stdout]     |
[INFO] [stdout] 241 |     invoke_handler: Box<FnMut(&mut WebView<T>, &str) -> WVResult + 'a>,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut WebView<T>, &str) -> WVResult + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:287:22
[INFO] [stdout]     |
[INFO] [stdout] 287 |                 Some(ffi_invoke_handler::<T>),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^ expected "C" fn, found "system" fn
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `extern "C" fn(_, _)`
[INFO] [stdout]                   found fn item `extern "system" fn(_, _) {ffi_invoke_handler::<T>}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0605]: non-primitive cast: `extern "system" fn(*mut ffi::CWebView, *mut std::ffi::c_void) {ffi_dispatch_handler::<T>}` as `extern "C" fn(*mut ffi::CWebView, *mut std::ffi::c_void)`
[INFO] [stdout]    --> src/lib.rs:502:22
[INFO] [stdout]     |
[INFO] [stdout] 502 |                 Some(ffi_dispatch_handler::<T> as _),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0605.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `better-web-view`
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:287:22
[INFO] [stdout]     |
[INFO] [stdout] 287 |                 Some(ffi_invoke_handler::<T>),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^ expected "C" fn, found "system" fn
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `extern "C" fn(_, _)`
[INFO] [stdout]                   found fn item `extern "system" fn(_, _) {ffi_invoke_handler::<T>}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error[E0605]: non-primitive cast: `extern "system" fn(*mut ffi::CWebView, *mut std::ffi::c_void) {ffi_dispatch_handler::<T>}` as `extern "C" fn(*mut ffi::CWebView, *mut std::ffi::c_void)`
[INFO] [stdout]    --> src/lib.rs:502:22
[INFO] [stdout]     |
[INFO] [stdout] 502 |                 Some(ffi_dispatch_handler::<T> as _),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid cast
[INFO] [stdout] 
[INFO] [stdout] 
[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: aborting due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0605.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e7081443a1a1826575aff1ab41457136b2827cafa7023f237008c3fca82abda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7081443a1a1826575aff1ab41457136b2827cafa7023f237008c3fca82abda7", kill_on_drop: false }`
[INFO] [stdout] e7081443a1a1826575aff1ab41457136b2827cafa7023f237008c3fca82abda7