[INFO] updating cached repository https://github.com/wuminzhe/matching-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c74254d0e4d972c8b6735cd068d5f349e92683c5
[INFO] testing wuminzhe/matching-rs against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwuminzhe%2Fmatching-rs" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wuminzhe/matching-rs on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/wuminzhe/matching-rs
[INFO] finished tweaking git repo https://github.com/wuminzhe/matching-rs
[INFO] tweaked toml for git repo https://github.com/wuminzhe/matching-rs written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/wuminzhe/matching-rs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 86d3496b737d755e6d5a75c9fdf322d9dd9aef70572e540742f251084072afec
[INFO] running `"docker" "start" "-a" "86d3496b737d755e6d5a75c9fdf322d9dd9aef70572e540742f251084072afec"`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling opaque-debug v0.2.2
[INFO] [stderr]    Compiling mysql v16.0.2
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling intrusive-collections v0.6.8
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.8.1
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling regex-syntax v0.6.7
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling lexical-core v0.4.2
[INFO] [stderr]    Compiling lexical v2.2.1
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling backtrace v0.3.32
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling stackvector v1.0.6
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling openssl v0.10.23
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stderr]    Compiling bigdecimal v0.1.0
[INFO] [stderr]    Compiling flate2 v1.0.9
[INFO] [stderr]    Compiling mio-extras v2.0.5
[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-0.6.7/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=150914079ba651a1 -C extra-filename=-150914079ba651a1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-b548f566287fc6d5.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 `"docker" "inspect" "86d3496b737d755e6d5a75c9fdf322d9dd9aef70572e540742f251084072afec"`
[INFO] running `"docker" "rm" "-f" "86d3496b737d755e6d5a75c9fdf322d9dd9aef70572e540742f251084072afec"`
[INFO] [stdout] 86d3496b737d755e6d5a75c9fdf322d9dd9aef70572e540742f251084072afec