[INFO] crate webview 0.1.1 is already in cache
[INFO] checking webview-0.1.1 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate webview 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate webview 0.1.1 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate webview 0.1.1
[INFO] finished tweaking crates.io crate webview 0.1.1
[INFO] tweaked toml for crates.io crate webview 0.1.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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-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" "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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9e1eff1ad676325777c0949c484d2f8ff935f8b3eb8522218a7f2c7b59549370
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "9e1eff1ad676325777c0949c484d2f8ff935f8b3eb8522218a7f2c7b59549370"`
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]    Compiling webview v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: In file included from library/webview.c:1:0:
[INFO] [stderr] warning: library/webview.h: In function 'external_message_received_cb':
[INFO] [stderr] warning: library/webview.h:216:5: warning: 'webkit_javascript_result_get_global_context' is deprecated [-Wdeprecated-declarations]
[INFO] [stderr] warning:      JSGlobalContextRef context = webkit_javascript_result_get_global_context(r);
[INFO] [stderr] warning:      ^~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: In file included from /usr/include/webkitgtk-4.0/webkit2/webkit2.h:57:0,
[INFO] [stderr] warning:                  from library/webview.h:14,
[INFO] [stderr] warning:                  from library/webview.c:1:
[INFO] [stderr] warning: /usr/include/webkitgtk-4.0/webkit2/WebKitJavascriptResult.h:49:1: note: declared here
[INFO] [stderr] warning:  webkit_javascript_result_get_global_context (WebKitJavascriptResult *js_result);
[INFO] [stderr] warning:  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: In file included from library/webview.c:1:0:
[INFO] [stderr] warning: library/webview.h:217:5: warning: 'webkit_javascript_result_get_value' is deprecated: Use 'webkit_javascript_result_get_js_value' instead [-Wdeprecated-declarations]
[INFO] [stderr] warning:      JSValueRef value = webkit_javascript_result_get_value(r);
[INFO] [stderr] warning:      ^~~~~~~~~~
[INFO] [stderr] warning: In file included from /usr/include/webkitgtk-4.0/webkit2/webkit2.h:57:0,
[INFO] [stderr] warning:                  from library/webview.h:14,
[INFO] [stderr] warning:                  from library/webview.c:1:
[INFO] [stderr] warning: /usr/include/webkitgtk-4.0/webkit2/WebKitJavascriptResult.h:52:1: note: declared here
[INFO] [stderr] warning:  webkit_javascript_result_get_value          (WebKitJavascriptResult *js_result);
[INFO] [stderr] warning:  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: library/webview.c: In function 'r_webview_eval':
[INFO] [stderr] warning: library/webview.c:25:1: warning: control reaches end of non-void function [-Wreturn-type]
[INFO] [stderr] warning:  }
[INFO] [stderr] warning:  ^
[INFO] [stderr] warning: library/webview.c: In function 'r_webview_inject_css':
[INFO] [stderr] warning: library/webview.c:30:1: warning: control reaches end of non-void function [-Wreturn-type]
[INFO] [stderr] warning:  }
[INFO] [stderr] warning:  ^
[INFO] [stderr] warning: In file included from library/webview.c:1:0:
[INFO] [stderr] warning: At top level:
[INFO] [stderr] warning: library/webview.h:157:13: warning: 'webview_debug' defined but not used [-Wunused-function]
[INFO] [stderr] warning:  static void webview_debug(const char *format, ...)
[INFO] [stderr] warning:              ^~~~~~~~~~~~~
[INFO] [stderr] warning: library/webview.h:138:12: warning: 'webview' defined but not used [-Wunused-function]
[INFO] [stderr] warning:  static int webview(const char *title, const char *url, int w, int h,
[INFO] [stderr] warning:             ^~~~~~~
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ffi.rs:26:23
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub callback: Box<Fn(&WebView) -> ()>,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&WebView) -> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:43:45
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub const WEBVIEW_DIALOG_FLAG_FILE: c_int = (0 << 0);
[INFO] [stderr]    |                                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:44:50
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub const WEBVIEW_DIALOG_FLAG_DIRECTORY: c_int = (1 << 0);
[INFO] [stderr]    |                                                  ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:45:45
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const WEBVIEW_DIALOG_FLAG_INFO: c_int = (1 << 1);
[INFO] [stderr]    |                                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:46:48
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const WEBVIEW_DIALOG_FLAG_WARNING: c_int = (2 << 1);
[INFO] [stderr]    |                                                ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:47:46
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub const WEBVIEW_DIALOG_FLAG_ERROR: c_int = (3 << 1);
[INFO] [stderr]    |                                              ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:48:51
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub const WEBVIEW_DIALOG_FLAG_ALERT_MASK: c_int = (3 << 1);
[INFO] [stderr]    |                                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ffi.rs:26:23
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub callback: Box<Fn(&WebView) -> ()>,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&WebView) -> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:43:45
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub const WEBVIEW_DIALOG_FLAG_FILE: c_int = (0 << 0);
[INFO] [stderr]    |                                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:44:50
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub const WEBVIEW_DIALOG_FLAG_DIRECTORY: c_int = (1 << 0);
[INFO] [stderr]    |                                                  ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:45:45
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const WEBVIEW_DIALOG_FLAG_INFO: c_int = (1 << 1);
[INFO] [stderr]    |                                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:46:48
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const WEBVIEW_DIALOG_FLAG_WARNING: c_int = (2 << 1);
[INFO] [stderr]    |                                                ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:47:46
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub const WEBVIEW_DIALOG_FLAG_ERROR: c_int = (3 << 1);
[INFO] [stderr]    |                                              ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/ffi.rs:48:51
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub const WEBVIEW_DIALOG_FLAG_ALERT_MASK: c_int = (3 << 1);
[INFO] [stderr]    |                                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `window`
[INFO] [stderr]   --> src/ffi.rs:38:30
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub extern "C" fn dispatcher(window: &Window, data: *mut DispatchUserData) -> () {
[INFO] [stderr]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_window`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `DialogType`
[INFO] [stderr]  --> src/ffi.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum DialogType {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_FILE`
[INFO] [stderr]   --> src/ffi.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub const WEBVIEW_DIALOG_FLAG_FILE: c_int = (0 << 0);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_DIRECTORY`
[INFO] [stderr]   --> src/ffi.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub const WEBVIEW_DIALOG_FLAG_DIRECTORY: c_int = (1 << 0);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_INFO`
[INFO] [stderr]   --> src/ffi.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const WEBVIEW_DIALOG_FLAG_INFO: c_int = (1 << 1);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_WARNING`
[INFO] [stderr]   --> src/ffi.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const WEBVIEW_DIALOG_FLAG_WARNING: c_int = (2 << 1);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_ERROR`
[INFO] [stderr]   --> src/ffi.rs:47:1
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub const WEBVIEW_DIALOG_FLAG_ERROR: c_int = (3 << 1);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_ALERT_MASK`
[INFO] [stderr]   --> src/ffi.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub const WEBVIEW_DIALOG_FLAG_ALERT_MASK: c_int = (3 << 1);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DEFAULT_URL`
[INFO] [stderr]   --> src/ffi.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub const DEFAULT_URL: &str = "data:text/html,%3Cbody%3E%3C%2Fbody%3E";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `r_webview_set_fullscreen`
[INFO] [stderr]   --> src/ffi.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn r_webview_set_fullscreen(webview: &Window, fullscreen: c_int) -> ();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `r_webview_dialog`
[INFO] [stderr]   --> src/ffi.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 | /     pub fn r_webview_dialog(
[INFO] [stderr] 61 | |         webview: &Window,
[INFO] [stderr] 62 | |         dlgtype: DialogType,
[INFO] [stderr] 63 | |         flags: c_int,
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |         resultsz: isize,
[INFO] [stderr] 68 | |     ) -> ();
[INFO] [stderr]    | |____________^
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:53:36
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn r_webview_init(webview: &Window) -> c_int;
[INFO] [stderr]    |                                    ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:54:36
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn r_webview_loop(webview: &Window, blocking: c_int) -> c_int;
[INFO] [stderr]    |                                    ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:55:36
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn r_webview_exit(webview: &Window);
[INFO] [stderr]    |                                    ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:56:36
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn r_webview_eval(webview: &Window, js: *const c_char) -> c_int;
[INFO] [stderr]    |                                    ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:57:42
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn r_webview_inject_css(webview: &Window, css: *const c_char) -> c_int;
[INFO] [stderr]    |                                          ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:58:41
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn r_webview_set_title(webview: &Window, title: *const c_char) -> ();
[INFO] [stderr]    |                                         ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:59:46
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn r_webview_set_fullscreen(webview: &Window, fullscreen: c_int) -> ();
[INFO] [stderr]    |                                              ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:61:18
[INFO] [stderr]    |
[INFO] [stderr] 61 |         webview: &Window,
[INFO] [stderr]    |                  ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:70:18
[INFO] [stderr]    |
[INFO] [stderr] 70 |         webview: &Window,
[INFO] [stderr]    |                  ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         cb: extern "C" fn(window: &Window, arg: *mut DispatchUserData) -> (),
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:75:40
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn r_webview_terminate(window: &Window) -> ();
[INFO] [stderr]    |                                        ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `window`
[INFO] [stderr]   --> src/ffi.rs:38:30
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub extern "C" fn dispatcher(window: &Window, data: *mut DispatchUserData) -> () {
[INFO] [stderr]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_window`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `DialogType`
[INFO] [stderr]  --> src/ffi.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum DialogType {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_FILE`
[INFO] [stderr]   --> src/ffi.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub const WEBVIEW_DIALOG_FLAG_FILE: c_int = (0 << 0);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_DIRECTORY`
[INFO] [stderr]   --> src/ffi.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub const WEBVIEW_DIALOG_FLAG_DIRECTORY: c_int = (1 << 0);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_INFO`
[INFO] [stderr]   --> src/ffi.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const WEBVIEW_DIALOG_FLAG_INFO: c_int = (1 << 1);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_WARNING`
[INFO] [stderr]   --> src/ffi.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const WEBVIEW_DIALOG_FLAG_WARNING: c_int = (2 << 1);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_ERROR`
[INFO] [stderr]   --> src/ffi.rs:47:1
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub const WEBVIEW_DIALOG_FLAG_ERROR: c_int = (3 << 1);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WEBVIEW_DIALOG_FLAG_ALERT_MASK`
[INFO] [stderr]   --> src/ffi.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub const WEBVIEW_DIALOG_FLAG_ALERT_MASK: c_int = (3 << 1);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DEFAULT_URL`
[INFO] [stderr]   --> src/ffi.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub const DEFAULT_URL: &str = "data:text/html,%3Cbody%3E%3C%2Fbody%3E";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `r_webview_set_fullscreen`
[INFO] [stderr]   --> src/ffi.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn r_webview_set_fullscreen(webview: &Window, fullscreen: c_int) -> ();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `r_webview_dialog`
[INFO] [stderr]   --> src/ffi.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 | /     pub fn r_webview_dialog(
[INFO] [stderr] 61 | |         webview: &Window,
[INFO] [stderr] 62 | |         dlgtype: DialogType,
[INFO] [stderr] 63 | |         flags: c_int,
[INFO] [stderr] ...  |
[INFO] [stderr] 67 | |         resultsz: isize,
[INFO] [stderr] 68 | |     ) -> ();
[INFO] [stderr]    | |____________^
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:53:36
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn r_webview_init(webview: &Window) -> c_int;
[INFO] [stderr]    |                                    ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:54:36
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn r_webview_loop(webview: &Window, blocking: c_int) -> c_int;
[INFO] [stderr]    |                                    ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:55:36
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn r_webview_exit(webview: &Window);
[INFO] [stderr]    |                                    ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:56:36
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn r_webview_eval(webview: &Window, js: *const c_char) -> c_int;
[INFO] [stderr]    |                                    ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:57:42
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn r_webview_inject_css(webview: &Window, css: *const c_char) -> c_int;
[INFO] [stderr]    |                                          ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:58:41
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn r_webview_set_title(webview: &Window, title: *const c_char) -> ();
[INFO] [stderr]    |                                         ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:59:46
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn r_webview_set_fullscreen(webview: &Window, fullscreen: c_int) -> ();
[INFO] [stderr]    |                                              ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:61:18
[INFO] [stderr]    |
[INFO] [stderr] 61 |         webview: &Window,
[INFO] [stderr]    |                  ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:70:18
[INFO] [stderr]    |
[INFO] [stderr] 70 |         webview: &Window,
[INFO] [stderr]    |                  ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         cb: extern "C" fn(window: &Window, arg: *mut DispatchUserData) -> (),
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `std::vec::Vec<u8>`, which is not FFI-safe
[INFO] [stderr]   --> src/ffi.rs:75:40
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn r_webview_terminate(window: &Window) -> ();
[INFO] [stderr]    |                                        ^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `"docker" "inspect" "9e1eff1ad676325777c0949c484d2f8ff935f8b3eb8522218a7f2c7b59549370"`
[INFO] running `"docker" "rm" "-f" "9e1eff1ad676325777c0949c484d2f8ff935f8b3eb8522218a7f2c7b59549370"`
[INFO] [stdout] 9e1eff1ad676325777c0949c484d2f8ff935f8b3eb8522218a7f2c7b59549370