[INFO] fetching crate ffav 4.3.9...
[INFO] testing ffav-4.3.9 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ffav 4.3.9 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ffav 4.3.9 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 ffav 4.3.9
[INFO] finished tweaking crates.io crate ffav 4.3.9
[INFO] tweaked toml for crates.io crate ffav 4.3.9 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate ffav 4.3.9 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] da46cb35b8018c8cea2e7dcd39bb95ec951eaeca22fe0b14925291ecb5af1825
[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" "da46cb35b8018c8cea2e7dcd39bb95ec951eaeca22fe0b14925291ecb5af1825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da46cb35b8018c8cea2e7dcd39bb95ec951eaeca22fe0b14925291ecb5af1825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da46cb35b8018c8cea2e7dcd39bb95ec951eaeca22fe0b14925291ecb5af1825", kill_on_drop: false }`
[INFO] [stdout] da46cb35b8018c8cea2e7dcd39bb95ec951eaeca22fe0b14925291ecb5af1825
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] 15f597e96e5f523089e7096ee2263361ce784014d36c701adc677e683fe80ade
[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" "15f597e96e5f523089e7096ee2263361ce784014d36c701adc677e683fe80ade", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling ffav v4.3.9 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling clang-sys v1.0.1
[INFO] [stderr]    Compiling libloading v0.6.4
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling ffav-sys v4.3.3
[INFO] [stderr] error: could not compile `ffav-sys`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ffav-sys-4.3.3/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="avcodec"' --cfg 'feature="avdevice"' --cfg 'feature="avfilter"' --cfg 'feature="avformat"' --cfg 'feature="avutil"' --cfg 'feature="swresample"' --cfg 'feature="swscale"' -C metadata=94ac112a3ef31828 -C extra-filename=-94ac112a3ef31828 --out-dir /opt/rustwide/target/debug/build/ffav-sys-94ac112a3ef31828 -L dependency=/opt/rustwide/target/debug/deps --extern bindgen=/opt/rustwide/target/debug/deps/libbindgen-c5c255a5675c4744.rlib --extern cc=/opt/rustwide/target/debug/deps/libcc-0526c01f8cafd4e8.rlib --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-17f713335dfc4dd3.rlib --extern pkg_config=/opt/rustwide/target/debug/deps/libpkg_config-18dcab82501fe18b.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-a6cac87353047206.rlib --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "15f597e96e5f523089e7096ee2263361ce784014d36c701adc677e683fe80ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f597e96e5f523089e7096ee2263361ce784014d36c701adc677e683fe80ade", kill_on_drop: false }`
[INFO] [stdout] 15f597e96e5f523089e7096ee2263361ce784014d36c701adc677e683fe80ade