[INFO] cloning repository https://github.com/AIOCA/backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AIOCA/backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAIOCA%2Fbackend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAIOCA%2Fbackend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3177f8dea6f873463d33ca47eb743766d4a88dcd
[INFO] testing AIOCA/backend against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAIOCA%2Fbackend" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AIOCA/backend 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] started tweaking git repo https://github.com/AIOCA/backend
[INFO] finished tweaking git repo https://github.com/AIOCA/backend
[INFO] tweaked toml for git repo https://github.com/AIOCA/backend written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/AIOCA/backend 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded safemem v0.3.2
[INFO] [stderr]   Downloaded serde_json v1.0.41
[INFO] [stderr]   Downloaded indexmap v1.3.0
[INFO] [stderr]   Downloaded rocket_codegen v0.4.2
[INFO] [stderr]   Downloaded security-framework v0.3.3
[INFO] [stderr]   Downloaded cookie v0.11.1
[INFO] [stderr]   Downloaded ucd-util v0.1.5
[INFO] [stderr]   Downloaded schannel v0.1.16
[INFO] [stderr]   Downloaded filetime v0.2.7
[INFO] [stderr]   Downloaded minihttpse v0.1.6
[INFO] [stderr]   Downloaded miniurl v0.1.3
[INFO] [stderr]   Downloaded pkg-config v0.3.16
[INFO] [stderr]   Downloaded pest_meta v2.1.2
[INFO] [stderr]   Downloaded ucd-trie v0.1.2
[INFO] [stderr]   Downloaded cc v1.0.46
[INFO] [stderr]   Downloaded pest v2.1.2
[INFO] [stderr]   Downloaded notify v4.0.14
[INFO] [stderr]   Downloaded openssl v0.10.25
[INFO] [stderr]   Downloaded r2d2 v0.8.6
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.2
[INFO] [stderr]   Downloaded rocket v0.4.2
[INFO] [stderr]   Downloaded mysqlclient-sys v0.2.4
[INFO] [stderr]   Downloaded diesel v1.4.3
[INFO] [stderr]   Downloaded atty v0.2.13
[INFO] [stderr]   Downloaded openssl-sys v0.9.52
[INFO] [stderr]   Downloaded block-padding v0.1.4
[INFO] [stderr]   Downloaded sha-1 v0.8.1
[INFO] [stderr]   Downloaded pest_generator v2.1.1
[INFO] [stderr]   Downloaded inotify v0.6.1
[INFO] [stderr]   Downloaded rocket_contrib v0.4.2
[INFO] [stderr]   Downloaded rocket_http v0.4.2
[INFO] [stderr]   Downloaded rocket_contrib_codegen v0.4.2
[INFO] [stderr]   Downloaded jsonwebtoken v1.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] b6a4862cfc2a6cd992967615b9094b17ac1208025e96a0a9dd265751af8e3b04
[INFO] running `Command { std: "docker" "start" "-a" "b6a4862cfc2a6cd992967615b9094b17ac1208025e96a0a9dd265751af8e3b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6a4862cfc2a6cd992967615b9094b17ac1208025e96a0a9dd265751af8e3b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6a4862cfc2a6cd992967615b9094b17ac1208025e96a0a9dd265751af8e3b04", kill_on_drop: false }`
[INFO] [stdout] b6a4862cfc2a6cd992967615b9094b17ac1208025e96a0a9dd265751af8e3b04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6f47043a8357655b4955b8e9b7d6074a766dbc2862f4186f77848c5dfcef24ab
[INFO] running `Command { std: "docker" "start" "-a" "6f47043a8357655b4955b8e9b7d6074a766dbc2862f4186f77848c5dfcef24ab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling safemem v0.3.2
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling constant_time_eq v0.1.4
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling miniurl v0.1.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling minihttpse v0.1.6
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling rocket_codegen v0.4.2
[INFO] [stderr]    Compiling rocket_contrib_codegen v0.4.2
[INFO] [stderr]    Compiling rocket v0.4.2
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling mysqlclient-sys v0.2.4
[INFO] [stderr]    Compiling pest v2.1.2
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling rand_core v0.5.1
[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=00609df68f1a6931 -C extra-filename=-00609df68f1a6931 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "6f47043a8357655b4955b8e9b7d6074a766dbc2862f4186f77848c5dfcef24ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f47043a8357655b4955b8e9b7d6074a766dbc2862f4186f77848c5dfcef24ab", kill_on_drop: false }`
[INFO] [stdout] 6f47043a8357655b4955b8e9b7d6074a766dbc2862f4186f77848c5dfcef24ab