[INFO] fetching crate holochain_metrics 0.0.52-alpha2...
[INFO] checking holochain_metrics-0.0.52-alpha2 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate holochain_metrics 0.0.52-alpha2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate holochain_metrics 0.0.52-alpha2 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate holochain_metrics 0.0.52-alpha2
[INFO] finished tweaking crates.io crate holochain_metrics 0.0.52-alpha2
[INFO] tweaked toml for crates.io crate holochain_metrics 0.0.52-alpha2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate holochain_metrics 0.0.52-alpha2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dac03dd5dbef0c4771f2976ea61e6d21230d8bfff07e1e3c3ef0bb511e01c36
[INFO] running `Command { std: "docker" "start" "-a" "9dac03dd5dbef0c4771f2976ea61e6d21230d8bfff07e1e3c3ef0bb511e01c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dac03dd5dbef0c4771f2976ea61e6d21230d8bfff07e1e3c3ef0bb511e01c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dac03dd5dbef0c4771f2976ea61e6d21230d8bfff07e1e3c3ef0bb511e01c36", kill_on_drop: false }`
[INFO] [stdout] 9dac03dd5dbef0c4771f2976ea61e6d21230d8bfff07e1e3c3ef0bb511e01c36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5f80a0bbf4c8feba905ad0303f0428bfa533bf72c8a386e4476dc6a3deaf385
[INFO] running `Command { std: "docker" "start" "-a" "b5f80a0bbf4c8feba905ad0303f0428bfa533bf72c8a386e4476dc6a3deaf385", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling protobuf v2.14.0
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.25
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling prometheus v0.7.0
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling integer-encoding v1.1.5
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling tracing-core v0.1.10
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling sharded-slab v0.0.8
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking colored v1.7.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling backtrace v0.3.27
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking xml-rs v0.7.0
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking streaming-stats v0.2.2
[INFO] [stderr]     Checking hmac v0.5.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling rusoto_core v0.40.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[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-0.6.18/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 --cfg 'feature="default"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=0bf2c0c5f07aac96 -C extra-filename=-0bf2c0c5f07aac96 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "b5f80a0bbf4c8feba905ad0303f0428bfa533bf72c8a386e4476dc6a3deaf385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f80a0bbf4c8feba905ad0303f0428bfa533bf72c8a386e4476dc6a3deaf385", kill_on_drop: false }`
[INFO] [stdout] b5f80a0bbf4c8feba905ad0303f0428bfa533bf72c8a386e4476dc6a3deaf385