[INFO] fetching crate webkit2gtk 0.11.0...
[INFO] checking webkit2gtk-0.11.0 against beta for pr-78714
[INFO] extracting crate webkit2gtk 0.11.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate webkit2gtk 0.11.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webkit2gtk 0.11.0
[INFO] finished tweaking crates.io crate webkit2gtk 0.11.0
[INFO] tweaked toml for crates.io crate webkit2gtk 0.11.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate webkit2gtk 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfa7e6f2a5b610035df1188edaa4381cf5c9d9a000ec83a81973e8329e6ecb74
[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" "cfa7e6f2a5b610035df1188edaa4381cf5c9d9a000ec83a81973e8329e6ecb74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfa7e6f2a5b610035df1188edaa4381cf5c9d9a000ec83a81973e8329e6ecb74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfa7e6f2a5b610035df1188edaa4381cf5c9d9a000ec83a81973e8329e6ecb74", kill_on_drop: false }`
[INFO] [stdout] cfa7e6f2a5b610035df1188edaa4381cf5c9d9a000ec83a81973e8329e6ecb74
[INFO] running `Command { std: "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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3e76a307b03fabb11d3f20466787647c66d581a280d34dd269622e1b3cf6113
[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" "c3e76a307b03fabb11d3f20466787647c66d581a280d34dd269622e1b3cf6113", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]    Compiling webkit2gtk-sys v0.13.0
[INFO] [stderr]    Compiling gtk v0.9.2
[INFO] [stderr]     Checking javascriptcore-rs-sys v0.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]    Compiling thiserror v1.0.21
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling gio-sys v0.10.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]    Compiling soup-sys v0.10.0
[INFO] [stderr]    Compiling gio v0.9.1
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]     Checking futures-executor v0.3.7
[INFO] [stderr]     Checking glib v0.10.3
[INFO] [stderr]     Checking futures v0.3.7
[INFO] [stderr]     Checking javascriptcore-rs v0.10.0
[INFO] [stderr]     Checking webkit2gtk v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/auto/download.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/auto/web_context.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/auto/download.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/auto/web_context.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WebViewExtManual`
[INFO] [stdout]   --> examples/main.rs:30:79
[INFO] [stdout]    |
[INFO] [stdout] 30 | use webkit2gtk::{SettingsExt, WebContext, WebContextExt, WebView, WebViewExt, WebViewExtManual};
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new_with_context` found for struct `WebView` in the current scope
[INFO] [stdout]   --> examples/main.rs:45:28
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let webview = WebView::new_with_context(&context);
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            function or associated item not found in `WebView`
[INFO] [stdout]    |                            help: there is an associated function with a similar name: `with_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `webkit2gtk`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c3e76a307b03fabb11d3f20466787647c66d581a280d34dd269622e1b3cf6113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3e76a307b03fabb11d3f20466787647c66d581a280d34dd269622e1b3cf6113", kill_on_drop: false }`
[INFO] [stdout] c3e76a307b03fabb11d3f20466787647c66d581a280d34dd269622e1b3cf6113