[INFO] cloning repository https://github.com/gnunicorn/gather
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gnunicorn/gather" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnunicorn%2Fgather", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnunicorn%2Fgather'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8b4c8ac31bd6fcbf3b9892371414714a600cbcf
[INFO] checking gnunicorn/gather against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnunicorn%2Fgather" "/workspace/builds/worker-59/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-59/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gnunicorn/gather on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gnunicorn/gather
[INFO] finished tweaking git repo https://github.com/gnunicorn/gather
[INFO] tweaked toml for git repo https://github.com/gnunicorn/gather written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] crate git repo https://github.com/gnunicorn/gather already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a5451c80da63926e26141cb65fc3a483be3d95ab6eaccfd67665a97d38e6401
[INFO] running `Command { std: "docker" "start" "-a" "9a5451c80da63926e26141cb65fc3a483be3d95ab6eaccfd67665a97d38e6401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a5451c80da63926e26141cb65fc3a483be3d95ab6eaccfd67665a97d38e6401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a5451c80da63926e26141cb65fc3a483be3d95ab6eaccfd67665a97d38e6401", kill_on_drop: false }`
[INFO] [stdout] 9a5451c80da63926e26141cb65fc3a483be3d95ab6eaccfd67665a97d38e6401
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f63bdb534fdeb6217c85e9c37372412dd243b706d9c5c022d931042af75d4e30
[INFO] running `Command { std: "docker" "start" "-a" "f63bdb534fdeb6217c85e9c37372412dd243b706d9c5c022d931042af75d4e30", 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] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling subtle v2.2.1
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking constant_time_eq v0.1.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking rustc-hex v2.0.1
[INFO] [stderr]     Checking bitvec v0.14.0
[INFO] [stderr]     Checking byte-slice-cast v0.3.2
[INFO] [stderr]     Checking static_assertions v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking hash-db v0.15.2
[INFO] [stderr]     Checking parity-wasm v0.40.3
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking environmental v1.0.2
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking zeroize v0.10.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking bs58 v0.2.5
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking integer-sqrt v0.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.53
[INFO] [stderr]    Compiling bumpalo v2.6.0
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling wasm-bindgen v0.2.53
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]     Checking nohash-hasher v0.1.2
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking static_slice v0.0.3
[INFO] [stderr]     Checking ipnet v2.0.1
[INFO] [stderr]     Checking parity-send-wrapper v0.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking parity-bytes v0.1.0 (https://github.com/paritytech/parity-common?rev=b0317f649ab2c665b7987b8475878fc4d2e1f81d#b0317f64)
[INFO] [stderr]     Checking strum v0.15.0
[INFO] [stderr]     Checking arc-swap v0.4.3
[INFO] [stderr]     Checking once_cell v0.2.4
[INFO] [stderr]     Checking bitmask v0.5.0
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling substrate-consensus-slots v2.0.0 (https://github.com/paritytech/substrate.git#17aab52a)
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling bindgen v0.47.3
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking ascii_utils v0.9.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]     Checking mime v0.3.14
[INFO] [stderr]    Compiling sysinfo v0.9.5
[INFO] [stderr]     Checking interleaved-ordered v0.1.1
[INFO] [stderr]    Compiling substrate-wasm-builder-runner v1.0.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling names v0.11.0
[INFO] [stderr]     Checking sha1 v0.5.0
[INFO] [stderr]     Checking base-x v0.2.6
[INFO] [stderr]     Checking target_info v0.1.0
[INFO] [stderr]     Checking integer-encoding v1.0.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]     Checking tokio-sync v0.1.7
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking trie-root v0.15.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking fs-swap v0.2.4
[INFO] [stderr]     Checking fdlimit v0.1.1
[INFO] [stderr]     Checking rpassword v4.0.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking stream-cipher v0.3.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling pest v2.1.2
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking linked_hash_set v0.1.3
[INFO] [stderr]     Checking fast_chemail v0.9.6
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking multibase v0.6.0
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking digest v0.6.2
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking ctr v0.3.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling gather-runtime v2.0.0 (/opt/rustwide/workdir/runtime)
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling num_cpus v1.11.0
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking hmac-drbg v0.2.0
[INFO] [stderr]     Checking hash256-std-hasher v0.15.2
[INFO] [stderr]     Checking hmac v0.4.2
[INFO] [stderr]     Checking sha2 v0.6.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking elastic-array v0.10.2
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]     Checking encoding v0.2.33
[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-0.6.12/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="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=4055627397d2cec7 -C extra-filename=-4055627397d2cec7 --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" "f63bdb534fdeb6217c85e9c37372412dd243b706d9c5c022d931042af75d4e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f63bdb534fdeb6217c85e9c37372412dd243b706d9c5c022d931042af75d4e30", kill_on_drop: false }`
[INFO] [stdout] f63bdb534fdeb6217c85e9c37372412dd243b706d9c5c022d931042af75d4e30