[INFO] cloning repository https://github.com/flyq/candid_rs_exam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flyq/candid_rs_exam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflyq%2Fcandid_rs_exam", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflyq%2Fcandid_rs_exam'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08da11ca03236b7e8e0a403136be63e67200c830
[INFO] checking flyq/candid_rs_exam against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflyq%2Fcandid_rs_exam" "/workspace/builds/worker-74/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-74/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flyq/candid_rs_exam 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-74/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/flyq/candid_rs_exam
[INFO] finished tweaking git repo https://github.com/flyq/candid_rs_exam
[INFO] tweaked toml for git repo https://github.com/flyq/candid_rs_exam written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] crate git repo https://github.com/flyq/candid_rs_exam 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 beef v0.5.0
[INFO] [stderr]   Downloaded siphasher v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] 0ee9202c8a38e1e439e3f56f445a9eb4026ed7295bff43b322c9a196b49ef26d
[INFO] running `Command { std: "docker" "start" "-a" "0ee9202c8a38e1e439e3f56f445a9eb4026ed7295bff43b322c9a196b49ef26d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ee9202c8a38e1e439e3f56f445a9eb4026ed7295bff43b322c9a196b49ef26d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ee9202c8a38e1e439e3f56f445a9eb4026ed7295bff43b322c9a196b49ef26d", kill_on_drop: false }`
[INFO] [stdout] 0ee9202c8a38e1e439e3f56f445a9eb4026ed7295bff43b322c9a196b49ef26d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 587c4e40832e5c7756504f46aaebc6345b8231cbb448e271ef40cad345948cd0
[INFO] running `Command { std: "docker" "start" "-a" "587c4e40832e5c7756504f46aaebc6345b8231cbb448e271ef40cad345948cd0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling beef v0.5.0
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking byte-unit v3.1.4
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking on_wire v0.8.0 (https://github.com/dfinity/ic#40ab84f4)
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking rand_core v0.3.1
[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]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[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 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.25/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=b77be10fdde4f88a -C extra-filename=-b77be10fdde4f88a --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" "587c4e40832e5c7756504f46aaebc6345b8231cbb448e271ef40cad345948cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "587c4e40832e5c7756504f46aaebc6345b8231cbb448e271ef40cad345948cd0", kill_on_drop: false }`
[INFO] [stdout] 587c4e40832e5c7756504f46aaebc6345b8231cbb448e271ef40cad345948cd0
