[INFO] fetching crate ffav 4.3.9...
[INFO] checking ffav-4.3.9 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate ffav 4.3.9 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ffav 4.3.9 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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-5/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7b4ec248f7fe58d2ed845726f670c6fedc1d21c6f2322fd3ff5733d834b04d3
[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" "e7b4ec248f7fe58d2ed845726f670c6fedc1d21c6f2322fd3ff5733d834b04d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b4ec248f7fe58d2ed845726f670c6fedc1d21c6f2322fd3ff5733d834b04d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b4ec248f7fe58d2ed845726f670c6fedc1d21c6f2322fd3ff5733d834b04d3", kill_on_drop: false }`
[INFO] [stdout] e7b4ec248f7fe58d2ed845726f670c6fedc1d21c6f2322fd3ff5733d834b04d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2b3f79d12199c61272cc9d15133eac33c1bcdfe53f8a76468c0b0b227be41fe
[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" "e2b3f79d12199c61272cc9d15133eac33c1bcdfe53f8a76468c0b0b227be41fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling ffav v4.3.9 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v1.0.1
[INFO] [stderr]    Compiling libloading v0.6.4
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling regex v1.4.1
[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 env_logger v0.7.1
[INFO] [stderr]    Compiling cexpr v0.4.0
[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=1dd75dba2efc7bca -C extra-filename=-1dd75dba2efc7bca --out-dir /opt/rustwide/target/debug/build/ffav-sys-1dd75dba2efc7bca -L dependency=/opt/rustwide/target/debug/deps --extern bindgen=/opt/rustwide/target/debug/deps/libbindgen-7b8fb78ad44f82cb.rlib --extern cc=/opt/rustwide/target/debug/deps/libcc-d952d81c0b7fad63.rlib --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-a39acdb80b7afc58.rlib --extern pkg_config=/opt/rustwide/target/debug/deps/libpkg_config-3f6a6a23ca7b60c5.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-4bb3adf8331db325.rlib --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "e2b3f79d12199c61272cc9d15133eac33c1bcdfe53f8a76468c0b0b227be41fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2b3f79d12199c61272cc9d15133eac33c1bcdfe53f8a76468c0b0b227be41fe", kill_on_drop: false }`
[INFO] [stdout] e2b3f79d12199c61272cc9d15133eac33c1bcdfe53f8a76468c0b0b227be41fe