[INFO] cloning repository https://github.com/flatcar-linux/coreos-metadata
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flatcar-linux/coreos-metadata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fcoreos-metadata", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fcoreos-metadata'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 984730dafdfd5aa536a3a12ee36531829b33b0a9
[INFO] [stderr] warning: refname 'HEAD' is ambiguous.
[INFO] checking flatcar-linux/coreos-metadata against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflatcar-linux%2Fcoreos-metadata" "/workspace/builds/worker-57/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-57/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flatcar-linux/coreos-metadata on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/flatcar-linux/coreos-metadata
[INFO] finished tweaking git repo https://github.com/flatcar-linux/coreos-metadata
[INFO] tweaked toml for git repo https://github.com/flatcar-linux/coreos-metadata written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate git repo https://github.com/flatcar-linux/coreos-metadata already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39bcb5a8d601dcae880866bfb877f95d38c4d2d27e944abe8905614be4b90d70
[INFO] running `Command { std: "docker" "start" "-a" "39bcb5a8d601dcae880866bfb877f95d38c4d2d27e944abe8905614be4b90d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39bcb5a8d601dcae880866bfb877f95d38c4d2d27e944abe8905614be4b90d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39bcb5a8d601dcae880866bfb877f95d38c4d2d27e944abe8905614be4b90d70", kill_on_drop: false }`
[INFO] [stdout] 39bcb5a8d601dcae880866bfb877f95d38c4d2d27e944abe8905614be4b90d70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9b52c595139920d974fd007e8ba356ad63b491298dfab250eb8a6b9dc33be61
[INFO] running `Command { std: "docker" "start" "-a" "a9b52c595139920d974fd007e8ba356ad63b491298dfab250eb8a6b9dc33be61", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]    Compiling arrayvec v0.4.9
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking byte-tools v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking pnet_base v0.22.0
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking string v0.1.2
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]    Compiling encoding_rs v0.8.13
[INFO] [stderr]     Checking opaque-debug v0.2.1
[INFO] [stderr]    Compiling pnet v0.22.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking xml-rs v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking lock_api v0.1.5
[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-0.6.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=b9c0c3dfceb97926 -C extra-filename=-b9c0c3dfceb97926 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-32f182af8d1803e6.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" "a9b52c595139920d974fd007e8ba356ad63b491298dfab250eb8a6b9dc33be61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b52c595139920d974fd007e8ba356ad63b491298dfab250eb8a6b9dc33be61", kill_on_drop: false }`
[INFO] [stdout] a9b52c595139920d974fd007e8ba356ad63b491298dfab250eb8a6b9dc33be61