[INFO] fetching crate mg 0.12.0...
[INFO] testing mg-0.12.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate mg 0.12.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mg 0.12.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mg 0.12.0
[INFO] finished tweaking crates.io crate mg 0.12.0
[INFO] tweaked toml for crates.io crate mg 0.12.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate mg 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded relm-derive v0.18.0
[INFO] [stderr]   Downloaded relm v0.18.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49f249dcb04299d43a3978d3b65bea785d0a262b2bda1926cdb26cc1cb804db6
[INFO] running `"docker" "start" "-a" "49f249dcb04299d43a3978d3b65bea785d0a262b2bda1926cdb26cc1cb804db6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling gio v0.7.0
[INFO] [stderr]    Compiling pango v0.7.0
[INFO] [stderr]    Compiling cairo-rs v0.7.1
[INFO] [stderr]    Compiling fragile v0.3.0
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling gdk-pixbuf v0.7.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling gdk v0.11.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling atk v0.7.0
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling gtk v0.7.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling glib-sys v0.9.0
[INFO] [stderr]    Compiling gobject-sys v0.9.0
[INFO] [stderr]    Compiling gio-sys v0.9.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.0
[INFO] [stderr]    Compiling pango-sys v0.9.0
[INFO] [stderr]    Compiling gdk-sys v0.9.0
[INFO] [stderr]    Compiling atk-sys v0.9.0
[INFO] [stderr]    Compiling gtk-sys v0.9.0
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling glib v0.8.2
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling mg-settings-macros v0.4.2
[INFO] [stderr]    Compiling mg-settings v0.4.3
[INFO] [stderr]    Compiling relm-derive v0.18.0
[INFO] [stderr]    Compiling relm v0.18.0
[INFO] [stderr]    Compiling mg v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | #![feature(unboxed_closures)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/app/status_bar.rs:366:5
[INFO] [stderr]     |
[INFO] [stderr] 364 | #[derive(Msg)]
[INFO] [stderr]     |          --- rustdoc does not generate documentation for match arms
[INFO] [stderr] 365 | pub enum ItemMsg {
[INFO] [stderr] 366 |     /// Set the color of the status bar item.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/app/status_bar.rs:368:5
[INFO] [stderr]     |
[INFO] [stderr] 364 | #[derive(Msg)]
[INFO] [stderr]     |          --- rustdoc does not generate documentation for match arms
[INFO] [stderr] ...
[INFO] [stderr] 368 |     /// Set the text of the status bar item.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gtk::WidgetExt::override_background_color'
[INFO] [stderr]   --> src/app/color.rs:53:20
[INFO] [stderr]    |
[INFO] [stderr] 53 |         status_bar.override_background_color(StateFlags::NORMAL, Some(TRANSPARENT));
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gtk::WidgetExt::override_color'
[INFO] [stderr]   --> src/app/color.rs:54:20
[INFO] [stderr]    |
[INFO] [stderr] 54 |         status_bar.override_color(StateFlags::NORMAL, Some(&self.model.foreground_color));
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gtk::WidgetExt::override_background_color'
[INFO] [stderr]   --> src/app/color.rs:67:12
[INFO] [stderr]    |
[INFO] [stderr] 67 |     widget.override_background_color(StateFlags::NORMAL, Some(&RGBA::blue()));
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gtk::WidgetExt::override_background_color'
[INFO] [stderr]   --> src/app/color.rs:73:12
[INFO] [stderr]    |
[INFO] [stderr] 73 |     widget.override_background_color(StateFlags::NORMAL, Some(&RGBA {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gtk::WidgetExt::override_background_color'
[INFO] [stderr]   --> src/app/color.rs:84:12
[INFO] [stderr]    |
[INFO] [stderr] 84 |     widget.override_background_color(StateFlags::NORMAL, Some(&RGBA::red()));
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gtk::WidgetExt::override_color'
[INFO] [stderr]   --> src/app/color.rs:90:12
[INFO] [stderr]    |
[INFO] [stderr] 90 |     widget.override_color(StateFlags::NORMAL, Some(&RGBA::white()));
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gtk::WidgetExt::override_color'
[INFO] [stderr]    --> src/app/status_bar.rs:381:40
[INFO] [stderr]     |
[INFO] [stderr] 381 |             Color(color) => self.label.override_color(StateFlags::NORMAL, color.as_ref()),
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `mg`.
[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 `"docker" "inspect" "49f249dcb04299d43a3978d3b65bea785d0a262b2bda1926cdb26cc1cb804db6"`
[INFO] running `"docker" "rm" "-f" "49f249dcb04299d43a3978d3b65bea785d0a262b2bda1926cdb26cc1cb804db6"`
[INFO] [stdout] 49f249dcb04299d43a3978d3b65bea785d0a262b2bda1926cdb26cc1cb804db6