[INFO] cloning repository https://github.com/DancingAxolotl/parity-contract-listener-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DancingAxolotl/parity-contract-listener-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDancingAxolotl%2Fparity-contract-listener-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDancingAxolotl%2Fparity-contract-listener-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e0d9674d23540b58bfc7e8febd5e0b7cd2a36e6
[INFO] testing DancingAxolotl/parity-contract-listener-poc against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDancingAxolotl%2Fparity-contract-listener-poc" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DancingAxolotl/parity-contract-listener-poc on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/DancingAxolotl/parity-contract-listener-poc
[INFO] finished tweaking git repo https://github.com/DancingAxolotl/parity-contract-listener-poc
[INFO] tweaked toml for git repo https://github.com/DancingAxolotl/parity-contract-listener-poc written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/DancingAxolotl/parity-contract-listener-poc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cffb665139cc4ea8cff55740312a838486321e84b60d6c9b645ff5454318073
[INFO] running `Command { std: "docker" "start" "-a" "4cffb665139cc4ea8cff55740312a838486321e84b60d6c9b645ff5454318073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cffb665139cc4ea8cff55740312a838486321e84b60d6c9b645ff5454318073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cffb665139cc4ea8cff55740312a838486321e84b60d6c9b645ff5454318073", kill_on_drop: false }`
[INFO] [stdout] 4cffb665139cc4ea8cff55740312a838486321e84b60d6c9b645ff5454318073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83d0e18dedaadaa1bb7f40d7430ebd5961088dd30eca3d4868cd5eff72b3071a
[INFO] running `Command { std: "docker" "start" "-a" "83d0e18dedaadaa1bb7f40d7430ebd5961088dd30eca3d4868cd5eff72b3071a", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling heapsize v0.4.2 (https://github.com/cheme/heapsize.git?branch=ec-macfix#421df390)
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling rustc-hex v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling rustc-hex v2.0.1
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling lazycell v1.2.0
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling parity-bytes v0.1.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling memzero v0.1.0 (/opt/rustwide/workdir/util/memzero)
[INFO] [stderr]    Compiling edit-distance v2.0.1
[INFO] [stderr]    Compiling hashdb v0.3.0
[INFO] [stderr]    Compiling string v0.1.1
[INFO] [stderr]    Compiling unexpected v0.1.0 (/opt/rustwide/workdir/util/unexpected)
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling primal-estimate v0.2.1
[INFO] [stderr]    Compiling protobuf v1.7.4
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling linked-hash-map v0.4.2
[INFO] [stderr]    Compiling xdg v2.1.0
[INFO] [stderr]    Compiling crunchy v0.2.1
[INFO] [stderr]    Compiling ethabi-contract v6.0.0
[INFO] [stderr]    Compiling home v0.3.3
[INFO] [stderr]    Compiling memory_units v0.3.0
[INFO] [stderr]    Compiling nan-preserving-float v0.1.0
[INFO] [stderr]    Compiling interleaved-ordered v0.1.1
[INFO] [stderr]    Compiling siphasher v0.1.3
[INFO] [stderr]    Compiling macros v0.1.0 (/opt/rustwide/workdir/util/macros)
[INFO] [stderr]    Compiling ipnetwork v0.12.8
[INFO] [stderr]    Compiling using_queue v0.1.0 (/opt/rustwide/workdir/miner/using-queue)
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling slab v0.2.0
[INFO] [stderr]    Compiling parity-path v0.1.1
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling winapi v0.3.6
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling target_info v0.1.0
[INFO] [stderr]    Compiling sha1 v0.5.0
[INFO] [stderr]    Compiling base-x v0.2.3
[INFO] [stderr]    Compiling mio-named-pipes v0.1.6
[INFO] [stderr]    Compiling if_chain v0.1.3
[INFO] [stderr]    Compiling integer-encoding v1.0.5
[INFO] [stderr]    Compiling transient-hashmap v0.4.1
[INFO] [stderr]    Compiling order-stat v0.1.3
[INFO] [stderr]    Compiling rprompt v1.0.3
[INFO] [stderr]    Compiling hex v0.2.0
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling fs-swap v0.2.4
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling daemonize v0.3.0
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling fdlimit v0.1.1
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling tokio-executor v0.1.5
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.2
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling socket2 v0.3.8
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling ethcore-bloom-journal v0.1.0 (/opt/rustwide/workdir/util/bloom)
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling parity-wasm v0.31.3
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling primal-bit v0.2.4
[INFO] [stderr]    Compiling app_dirs v1.2.1 (https://github.com/paritytech/app-dirs-rs#0b37f948)
[INFO] [stderr]    Compiling lru-cache v0.1.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling lock_api v0.1.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling multibase v0.6.0
[INFO] [stderr]    Compiling rpassword v1.0.2
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling trace-time v0.1.1
[INFO] [stderr]    Compiling stats v0.1.0 (/opt/rustwide/workdir/util/stats)
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling bytes v0.4.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling tokio-timer v0.2.7
[INFO] [stderr]    Compiling tokio-current-thread v0.1.3
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling number_prefix v0.2.8
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling toolshed v0.4.0
[INFO] [stderr]    Compiling url v1.7.1
[INFO] [stderr]    Compiling primal-sieve v0.2.9
[INFO] [stderr]    Compiling xmltree v0.7.0
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling eth-secp256k1 v0.5.7 (https://github.com/paritytech/rust-secp256k1#ccc06e74)
[INFO] [stderr]    Compiling parity-snappy-sys v0.1.2
[INFO] [stderr]    Compiling parity-rocksdb-sys v0.5.5
[INFO] [stderr]    Compiling libusb-sys v0.2.4 (https://github.com/paritytech/libusb-sys#1d33d984)
[INFO] [stderr]    Compiling hidapi v0.3.1 (https://github.com/paritytech/hidapi-rs#d4d32376)
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling primal-check v0.2.3
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling mime v0.3.12
[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-0.6.2/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=0595450d6930813e -C extra-filename=-0595450d6930813e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-4d5aff6136066490.rmeta --cap-lints allow --cap-lints=warn` (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" "83d0e18dedaadaa1bb7f40d7430ebd5961088dd30eca3d4868cd5eff72b3071a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d0e18dedaadaa1bb7f40d7430ebd5961088dd30eca3d4868cd5eff72b3071a", kill_on_drop: false }`
[INFO] [stdout] 83d0e18dedaadaa1bb7f40d7430ebd5961088dd30eca3d4868cd5eff72b3071a