[INFO] fetching crate grin_miner_config 0.5.2...
[INFO] testing grin_miner_config-0.5.2 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate grin_miner_config 0.5.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate grin_miner_config 0.5.2 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grin_miner_config 0.5.2
[INFO] finished tweaking crates.io crate grin_miner_config 0.5.2
[INFO] tweaked toml for crates.io crate grin_miner_config 0.5.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7257a452edb033a3acbb79d82bf0e17bc5b5861f30770df95cb616e19062c8a7
[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" "7257a452edb033a3acbb79d82bf0e17bc5b5861f30770df95cb616e19062c8a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7257a452edb033a3acbb79d82bf0e17bc5b5861f30770df95cb616e19062c8a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7257a452edb033a3acbb79d82bf0e17bc5b5861f30770df95cb616e19062c8a7", kill_on_drop: false }`
[INFO] [stdout] 7257a452edb033a3acbb79d82bf0e17bc5b5861f30770df95cb616e19062c8a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 41da9937b9ff2dfa6e9a6deadaca51b1666b2940c58027448f710fddf141c907
[INFO] running `Command { std: "docker" "start" "-a" "41da9937b9ff2dfa6e9a6deadaca51b1666b2940c58027448f710fddf141c907", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling slog v2.1.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling grin_miner_plugin v0.5.2
[INFO] [stderr]    Compiling cuckoo_miner v0.5.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling slog-async v2.5.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling slog-term v2.6.0
[INFO] [stderr]    Compiling grin_miner_util v0.5.2
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.5.6/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=ede8b7039525cbff -C extra-filename=-ede8b7039525cbff --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-76bd27fc44249fe3.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "41da9937b9ff2dfa6e9a6deadaca51b1666b2940c58027448f710fddf141c907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41da9937b9ff2dfa6e9a6deadaca51b1666b2940c58027448f710fddf141c907", kill_on_drop: false }`
[INFO] [stdout] 41da9937b9ff2dfa6e9a6deadaca51b1666b2940c58027448f710fddf141c907