[INFO] fetching crate scribble 0.1.0...
[INFO] testing scribble-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate scribble 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate scribble 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scribble 0.1.0
[INFO] finished tweaking crates.io crate scribble 0.1.0
[INFO] tweaked toml for crates.io crate scribble 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate scribble 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43ef9d0408f4c626145d9cf677c55f670227ae3f3fad92731e60895d8a8298e7
[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" "43ef9d0408f4c626145d9cf677c55f670227ae3f3fad92731e60895d8a8298e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43ef9d0408f4c626145d9cf677c55f670227ae3f3fad92731e60895d8a8298e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ef9d0408f4c626145d9cf677c55f670227ae3f3fad92731e60895d8a8298e7", kill_on_drop: false }`
[INFO] [stdout] 43ef9d0408f4c626145d9cf677c55f670227ae3f3fad92731e60895d8a8298e7
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7222e2a7ca0ea1929b8d02c42cc931c977e670dd5d719e61ff3d27f2bbce51a8
[INFO] running `Command { std: "docker" "start" "-a" "7222e2a7ca0ea1929b8d02c42cc931c977e670dd5d719e61ff3d27f2bbce51a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling cairo-rs v0.8.1
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling standback v0.2.8
[INFO] [stderr]    Compiling gio v0.8.1
[INFO] [stderr]    Compiling tinystr v0.3.2
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling gstreamer v0.15.6
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0
[INFO] [stderr]    Compiling atk v0.8.0
[INFO] [stderr]    Compiling muldiv v0.2.1
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling gdk v0.12.1
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling gstreamer-base v0.15.4
[INFO] [stderr]    Compiling xi-unicode v0.2.0
[INFO] [stderr]    Compiling gtk v0.8.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling instant v0.1.4
[INFO] [stderr]    Compiling fluent-syntax v0.9.3
[INFO] [stderr]    Compiling transpose v0.1.0
[INFO] [stderr]    Compiling gstreamer-audio v0.15.5
[INFO] [stderr]    Compiling gstreamer-video v0.15.6
[INFO] [stderr]    Compiling gstreamer-app v0.15.6
[INFO] [stderr]    Compiling cpal v0.11.0
[INFO] [stderr]    Compiling array-init v0.1.1
[INFO] [stderr]    Compiling apodize v1.0.0
[INFO] [stderr]    Compiling lufs v0.1.0
[INFO] [stderr]    Compiling glib-sys v0.9.1
[INFO] [stderr]    Compiling gobject-sys v0.9.1
[INFO] [stderr]    Compiling gstreamer-sys v0.8.1
[INFO] [stderr]    Compiling gio-sys v0.9.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
[INFO] [stderr]    Compiling gstreamer-base-sys v0.8.1
[INFO] [stderr]    Compiling pango-sys v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.1
[INFO] [stderr]    Compiling gdk-sys v0.9.1
[INFO] [stderr]    Compiling atk-sys v0.9.1
[INFO] [stderr]    Compiling gtk-sys v0.9.2
[INFO] [stderr]    Compiling gstreamer-audio-sys v0.8.1
[INFO] [stderr]    Compiling gstreamer-video-sys v0.8.1
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling gstreamer-app-sys v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling time v0.2.16
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling unic-langid-impl v0.9.0
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling kurbo v0.6.1
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unic-langid v0.9.0
[INFO] [stderr]    Compiling simple_logger v1.6.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling type-map v0.3.0
[INFO] [stderr]    Compiling sized-chunks v0.6.2
[INFO] [stderr]    Compiling fluent-langneg v0.13.0
[INFO] [stderr]    Compiling intl_pluralrules v7.0.0
[INFO] [stderr]    Compiling pkg-version-impl v0.1.1
[INFO] [stderr]    Compiling intl-memoizer v0.5.0
[INFO] [stderr] error: failed to run custom build command for `gstreamer-audio-sys v0.8.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/gstreamer-audio-sys-97cd424101aa857f/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   `"pkg-config" "--libs" "--cflags" "gstreamer-audio-1.0" "gstreamer-audio-1.0 >= 1.8"` did not exit successfully: exit code: 1
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Package gstreamer-audio-1.0 was not found in the pkg-config search path.
[INFO] [stderr]   Perhaps you should add the directory containing `gstreamer-audio-1.0.pc'
[INFO] [stderr]   to the PKG_CONFIG_PATH environment variable
[INFO] [stderr]   No package 'gstreamer-audio-1.0' found
[INFO] [stderr]   Package gstreamer-audio-1.0 was not found in the pkg-config search path.
[INFO] [stderr]   Perhaps you should add the directory containing `gstreamer-audio-1.0.pc'
[INFO] [stderr]   to the PKG_CONFIG_PATH environment variable
[INFO] [stderr]   No package 'gstreamer-audio-1.0' found
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7222e2a7ca0ea1929b8d02c42cc931c977e670dd5d719e61ff3d27f2bbce51a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7222e2a7ca0ea1929b8d02c42cc931c977e670dd5d719e61ff3d27f2bbce51a8", kill_on_drop: false }`
[INFO] [stdout] 7222e2a7ca0ea1929b8d02c42cc931c977e670dd5d719e61ff3d27f2bbce51a8