[INFO] fetching crate gstreamer-app 0.15.4...
[INFO] checking gstreamer-app-0.15.4 against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] extracting crate gstreamer-app 0.15.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate gstreamer-app 0.15.4 on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gstreamer-app 0.15.4
[INFO] finished tweaking crates.io crate gstreamer-app 0.15.4
[INFO] tweaked toml for crates.io crate gstreamer-app 0.15.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] faabf96d2d03f879e7ffde65c4cd57139d55f51f2b5523ad7f19c2874d444ec7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "faabf96d2d03f879e7ffde65c4cd57139d55f51f2b5523ad7f19c2874d444ec7"`
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]    Compiling gstreamer v0.15.4
[INFO] [stderr]    Compiling gstreamer-base v0.15.4
[INFO] [stderr]     Checking muldiv v0.2.1
[INFO] [stderr]    Compiling gstreamer-app v0.15.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling gstreamer-sys v0.8.1
[INFO] [stderr]    Compiling gstreamer-base-sys v0.8.1
[INFO] [stderr]    Compiling gstreamer-app-sys v0.8.1
[INFO] [stderr]    Compiling paste-impl v0.1.7
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr] error: failed to run custom build command for `gstreamer-app-sys v0.8.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/gstreamer-app-sys-e0b21b90ad054078/build-script-build` (exit code: 1)
[INFO] [stderr] --- stderr
[INFO] [stderr] `"pkg-config" "--libs" "--cflags" "gstreamer-app-1.0" "gstreamer-app-1.0 >= 1.8"` did not exit successfully: exit code: 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] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "faabf96d2d03f879e7ffde65c4cd57139d55f51f2b5523ad7f19c2874d444ec7"`
[INFO] running `"docker" "rm" "-f" "faabf96d2d03f879e7ffde65c4cd57139d55f51f2b5523ad7f19c2874d444ec7"`
[INFO] [stdout] faabf96d2d03f879e7ffde65c4cd57139d55f51f2b5523ad7f19c2874d444ec7