[INFO] cloning repository https://github.com/johncf/gtk-scribble-app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johncf/gtk-scribble-app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohncf%2Fgtk-scribble-app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohncf%2Fgtk-scribble-app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f7da8991a4a7bfbb068268c66e83c68c155d264
[INFO] checking johncf/gtk-scribble-app against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohncf%2Fgtk-scribble-app" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johncf/gtk-scribble-app on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johncf/gtk-scribble-app
[INFO] finished tweaking git repo https://github.com/johncf/gtk-scribble-app
[INFO] tweaked toml for git repo https://github.com/johncf/gtk-scribble-app written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/johncf/gtk-scribble-app already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b35b4a2441fa8600cbe6e0c48d86b2992c804cf13f329b7bdfa0950f96497b77
[INFO] running `Command { std: "docker" "start" "-a" "b35b4a2441fa8600cbe6e0c48d86b2992c804cf13f329b7bdfa0950f96497b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b35b4a2441fa8600cbe6e0c48d86b2992c804cf13f329b7bdfa0950f96497b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b35b4a2441fa8600cbe6e0c48d86b2992c804cf13f329b7bdfa0950f96497b77", kill_on_drop: false }`
[INFO] [stdout] b35b4a2441fa8600cbe6e0c48d86b2992c804cf13f329b7bdfa0950f96497b77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3cae9f53021444269bd6bf054c87aea2173b25e5ab37a5649b268ff28b9f20f
[INFO] running `Command { std: "docker" "start" "-a" "f3cae9f53021444269bd6bf054c87aea2173b25e5ab37a5649b268ff28b9f20f", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking bitflags v0.5.0
[INFO] [stderr]    Compiling cairo-rs v0.1.1 (https://github.com/gtk-rs/cairo#7e23bcd3)
[INFO] [stderr]    Compiling gdk-pixbuf v0.1.1 (https://github.com/gtk-rs/gdk-pixbuf#d227c3a8)
[INFO] [stderr]    Compiling gio v0.1.1 (https://github.com/gtk-rs/gio#053b508a)
[INFO] [stderr]     Checking c_vec v1.2.0
[INFO] [stderr]    Compiling gdk v0.5.1 (https://github.com/gtk-rs/gdk#d79a01dc)
[INFO] [stderr]    Compiling gtk v0.1.1 (https://github.com/gtk-rs/gtk#1b2120ce)
[INFO] [stderr]    Compiling glib-sys v0.3.2 (https://github.com/gtk-rs/sys#a0fdcfee)
[INFO] [stderr]    Compiling gobject-sys v0.3.2 (https://github.com/gtk-rs/sys#a0fdcfee)
[INFO] [stderr]    Compiling gio-sys v0.3.2 (https://github.com/gtk-rs/sys#a0fdcfee)
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.3.2 (https://github.com/gtk-rs/sys#a0fdcfee)
[INFO] [stderr]    Compiling cairo-sys-rs v0.3.2 (https://github.com/gtk-rs/cairo#7e23bcd3)
[INFO] [stderr]    Compiling pango-sys v0.3.2 (https://github.com/gtk-rs/sys#a0fdcfee)
[INFO] [stderr]    Compiling gdk-sys v0.3.2 (https://github.com/gtk-rs/sys#a0fdcfee)
[INFO] [stderr]    Compiling atk-sys v0.3.2 (https://github.com/gtk-rs/sys#a0fdcfee)
[INFO] [stderr]    Compiling gtk-sys v0.3.2 (https://github.com/gtk-rs/sys#a0fdcfee)
[INFO] [stderr]     Checking glib v0.1.1 (https://github.com/gtk-rs/glib#60e8afad)
[INFO] [stdout] error[E0119]: conflicting implementations of trait `value::SetValueOptional` for type `&_`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/glib-928cf7b282977403/60e8afa/src/value.rs:485:1
[INFO] [stdout]     |
[INFO] [stdout] 454 | impl<'a, T: ?Sized + SetValueOptional> SetValueOptional for &'a T {
[INFO] [stdout]     | ----------------------------------------------------------------- first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 485 | impl<T: IsA<Object>> SetValueOptional for T {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `&_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: downstream crates may implement trait `object::IsA<object::Object>` for type `&_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `value::SetValue` for type `&_`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/glib-928cf7b282977403/60e8afa/src/value.rs:479:1
[INFO] [stdout]     |
[INFO] [stdout] 448 | impl<'a, T: ?Sized + SetValue> SetValue for &'a T {
[INFO] [stdout]     | ------------------------------------------------- first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 479 | impl<T: IsA<Object>> SetValue for T {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `&_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: downstream crates may implement trait `object::IsA<object::Object>` for type `&_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0119`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glib`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f3cae9f53021444269bd6bf054c87aea2173b25e5ab37a5649b268ff28b9f20f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3cae9f53021444269bd6bf054c87aea2173b25e5ab37a5649b268ff28b9f20f", kill_on_drop: false }`
[INFO] [stdout] f3cae9f53021444269bd6bf054c87aea2173b25e5ab37a5649b268ff28b9f20f