[INFO] crate pnmixer-rs 0.1.2 is already in cache
[INFO] extracting crate pnmixer-rs 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/pnmixer-rs/0.1.2
[INFO] extracting crate pnmixer-rs 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pnmixer-rs/0.1.2
[INFO] validating manifest of pnmixer-rs-0.1.2 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pnmixer-rs-0.1.2 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pnmixer-rs-0.1.2
[INFO] finished frobbing pnmixer-rs-0.1.2
[INFO] frobbed toml for pnmixer-rs-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/pnmixer-rs/0.1.2/Cargo.toml
[INFO] started frobbing pnmixer-rs-0.1.2
[INFO] finished frobbing pnmixer-rs-0.1.2
[INFO] frobbed toml for pnmixer-rs-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pnmixer-rs/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pnmixer-rs-0.1.2 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pnmixer-rs/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 6fa2cd34312ef5c42f363145ac31eec88d59098c79553248c3159d86557c188f
[INFO] running `"docker" "start" "-a" "6fa2cd34312ef5c42f363145ac31eec88d59098c79553248c3159d86557c188f"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling gio v0.2.0
[INFO] [stderr]    Compiling cairo-rs v0.2.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.2.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling c_vec v1.2.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling gdk v0.6.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling gtk v0.2.0
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling bitflags v0.8.2
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling ffi v0.0.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling glib-sys v0.4.0
[INFO] [stderr]    Compiling gobject-sys v0.4.0
[INFO] [stderr]    Compiling gio-sys v0.4.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.4.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.4.0
[INFO] [stderr]    Compiling pango-sys v0.4.0
[INFO] [stderr]    Compiling atk-sys v0.4.0
[INFO] [stderr]    Compiling gdk-sys v0.4.0
[INFO] [stderr]    Compiling gtk-sys v0.4.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling w_result v0.1.2
[INFO] [stderr]    Compiling alsa v0.1.10
[INFO] [stderr]    Compiling backtrace v0.3.35
[INFO] [stderr]    Compiling glib v0.3.1
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling png v0.9.0
[INFO] [stderr]    Compiling flexi_logger v0.6.14
[INFO] [stderr]    Compiling pango v0.2.0
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling pnmixer-rs v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/hotkey.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | / /// `xmodmap -pm`
[INFO] [stderr] 18 | | /// List of key modifiers which will be ignored whenever
[INFO] [stderr] 19 | | /// we check whether the defined hotkeys have been pressed.
[INFO] [stderr]    | |___________________________________________________________^
[INFO] [stderr] 20 | / lazy_static! {
[INFO] [stderr] 21 | |     static ref KEY_MASKS: Vec<c_uint> = vec![
[INFO] [stderr] 22 | |                 gdk_sys::GdkModifierType::empty().bits(), // No Modkey
[INFO] [stderr] 23 | |                 gdk_sys::GDK_MOD2_MASK.bits(), // Numlock
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |             ];
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `alloc_system`
[INFO] [stderr]   --> src/lib.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | extern crate alloc_system;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `pnmixer-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `gtk`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name gtk /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gtk-0.2.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C codegen-units=1 -C debuginfo=2 -C debug-assertions=off -C overflow-checks=on --cfg 'feature="v3_10"' --cfg 'feature="v3_12"' --cfg 'feature="v3_14"' --cfg 'feature="v3_16"' --cfg 'feature="v3_18"' --cfg 'feature="v3_20"' --cfg 'feature="v3_22"' --cfg 'feature="v3_6"' --cfg 'feature="v3_8"' -C metadata=3ff9506a901d3465 -C extra-filename=-3ff9506a901d3465 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern bitflags=/opt/crater/target/debug/deps/libbitflags-cb41f011b1c38896.rmeta --extern cairo=/opt/crater/target/debug/deps/libcairo-4f41196b0a76f701.rmeta --extern cairo_sys=/opt/crater/target/debug/deps/libcairo_sys-78a5d4715b16c57b.rmeta --extern gdk=/opt/crater/target/debug/deps/libgdk-58370f317fe70a89.rmeta --extern gdk_pixbuf=/opt/crater/target/debug/deps/libgdk_pixbuf-d28bd6a3802a5b7a.rmeta --extern gdk_pixbuf_sys=/opt/crater/target/debug/deps/libgdk_pixbuf_sys-01771d1ea475de12.rmeta --extern gdk_sys=/opt/crater/target/debug/deps/libgdk_sys-6600b64aa4ad9ba1.rmeta --extern gio=/opt/crater/target/debug/deps/libgio-e74099dc3703a954.rmeta --extern gio_sys=/opt/crater/target/debug/deps/libgio_sys-e3847b5d249f7a1f.rmeta --extern glib=/opt/crater/target/debug/deps/libglib-d1df7a3882c21a35.rmeta --extern glib_sys=/opt/crater/target/debug/deps/libglib_sys-3ca902b56cc45bfb.rmeta --extern gobject_sys=/opt/crater/target/debug/deps/libgobject_sys-5726a3c0e5190868.rmeta --extern gtk_sys=/opt/crater/target/debug/deps/libgtk_sys-147ec15eb698bdc9.rmeta --extern libc=/opt/crater/target/debug/deps/liblibc-5188976dba2f86f7.rmeta --extern pango=/opt/crater/target/debug/deps/libpango-e6ddab6b273431ea.rmeta --cap-lints allow --cap-lints=warn -L native=/usr/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "6fa2cd34312ef5c42f363145ac31eec88d59098c79553248c3159d86557c188f"`
[INFO] running `"docker" "rm" "-f" "6fa2cd34312ef5c42f363145ac31eec88d59098c79553248c3159d86557c188f"`
[INFO] [stdout] 6fa2cd34312ef5c42f363145ac31eec88d59098c79553248c3159d86557c188f