[INFO] fetching crate gst-plugin-fallbackswitch 0.6.0...
[INFO] checking gst-plugin-fallbackswitch-0.6.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate gst-plugin-fallbackswitch 0.6.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate gst-plugin-fallbackswitch 0.6.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gst-plugin-fallbackswitch 0.6.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate gst-plugin-fallbackswitch 0.6.0
[INFO] tweaked toml for crates.io crate gst-plugin-fallbackswitch 0.6.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate gst-plugin-fallbackswitch 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b880682513b8fcf96099990f60c0000bd84062fa77d40927e2180a6bfa36b5c6
[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" "b880682513b8fcf96099990f60c0000bd84062fa77d40927e2180a6bfa36b5c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b880682513b8fcf96099990f60c0000bd84062fa77d40927e2180a6bfa36b5c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b880682513b8fcf96099990f60c0000bd84062fa77d40927e2180a6bfa36b5c6", kill_on_drop: false }`
[INFO] [stdout] b880682513b8fcf96099990f60c0000bd84062fa77d40927e2180a6bfa36b5c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d277cc779a4af05f4868dfb208a82afa72bcafa190a9a3509ae3e9f3fbacfc19
[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" "d277cc779a4af05f4868dfb208a82afa72bcafa190a9a3509ae3e9f3fbacfc19", kill_on_drop: false }`
[INFO] [stderr]    Compiling gstreamer v0.16.1
[INFO] [stderr]    Compiling gstreamer-base v0.16.0
[INFO] [stderr]    Compiling gstreamer-audio v0.16.0
[INFO] [stderr]    Compiling gstreamer-video v0.16.0
[INFO] [stderr]     Checking array-init v0.1.1
[INFO] [stderr]    Compiling gstreamer-check v0.16.0
[INFO] [stderr]    Compiling gstreamer-app v0.16.0
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling gstreamer-sys v0.9.0
[INFO] [stderr]    Compiling gstreamer-base-sys v0.9.0
[INFO] [stderr]    Compiling gstreamer-video-sys v0.9.0
[INFO] [stderr]    Compiling gstreamer-audio-sys v0.9.0
[INFO] [stderr]    Compiling gstreamer-app-sys v0.9.0
[INFO] [stderr]    Compiling gstreamer-check-sys v0.9.0
[INFO] [stderr]    Compiling gst-plugin-fallbackswitch v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking glib v0.10.1
[INFO] [stderr] error: failed to run custom build command for `gstreamer-app-sys v0.9.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/gstreamer-app-sys-a9e8933874db9619/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   `"pkg-config" "--libs" "--cflags" "gstreamer-app-1.0" "gstreamer-app-1.0 >= 1.14"` did not exit successfully: exit status: 1
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Package gstreamer-app-1.0 was not found in the pkg-config search path.
[INFO] [stderr]   Perhaps you should add the directory containing `gstreamer-app-1.0.pc'
[INFO] [stderr]   to the PKG_CONFIG_PATH environment variable
[INFO] [stderr]   No package 'gstreamer-app-1.0' found
[INFO] [stderr]   Package gstreamer-app-1.0 was not found in the pkg-config search path.
[INFO] [stderr]   Perhaps you should add the directory containing `gstreamer-app-1.0.pc'
[INFO] [stderr]   to the PKG_CONFIG_PATH environment variable
[INFO] [stderr]   No package 'gstreamer-app-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" "d277cc779a4af05f4868dfb208a82afa72bcafa190a9a3509ae3e9f3fbacfc19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d277cc779a4af05f4868dfb208a82afa72bcafa190a9a3509ae3e9f3fbacfc19", kill_on_drop: false }`
[INFO] [stdout] d277cc779a4af05f4868dfb208a82afa72bcafa190a9a3509ae3e9f3fbacfc19