[INFO] cloning repository https://github.com/mkxbl/muta-dex-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mkxbl/muta-dex-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkxbl%2Fmuta-dex-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkxbl%2Fmuta-dex-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 933d9fc39cfe9d5a544eac3c0e5ace34f35b08f9
[INFO] checking mkxbl/muta-dex-demo against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkxbl%2Fmuta-dex-demo" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mkxbl/muta-dex-demo on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mkxbl/muta-dex-demo
[INFO] finished tweaking git repo https://github.com/mkxbl/muta-dex-demo
[INFO] tweaked toml for git repo https://github.com/mkxbl/muta-dex-demo written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mkxbl/muta-dex-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fde3d98c5f83cc0bb4a83febcfc8e9af457c016f526413cc7ce97085d80078c8
[INFO] running `Command { std: "docker" "start" "-a" "fde3d98c5f83cc0bb4a83febcfc8e9af457c016f526413cc7ce97085d80078c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fde3d98c5f83cc0bb4a83febcfc8e9af457c016f526413cc7ce97085d80078c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fde3d98c5f83cc0bb4a83febcfc8e9af457c016f526413cc7ce97085d80078c8", kill_on_drop: false }`
[INFO] [stdout] fde3d98c5f83cc0bb4a83febcfc8e9af457c016f526413cc7ce97085d80078c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d3c08515f3700e8efbcc49b613d7c83fb2f07d3f0b7ee5ea6dc27b934c5b504
[INFO] running `Command { std: "docker" "start" "-a" "4d3c08515f3700e8efbcc49b613d7c83fb2f07d3f0b7ee5ea6dc27b934c5b504", 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 v0.2.1
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling bech32 v0.7.2
[INFO] [stderr]     Checking dyn-clone v1.0.2
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling protobuf v2.16.2
[INFO] [stderr]     Checking miracl_amcl v3.2.5
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]    Compiling prometheus v0.8.0 (https://github.com/tikv/rust-prometheus.git?rev=fd122caa03#fd122caa)
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling encoding_rs v0.8.23
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling tentacle-secio v0.3.4
[INFO] [stderr]     Checking faster-hex v0.4.1
[INFO] [stderr]     Checking unsigned-varint v0.3.3
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking static_merkle_tree v1.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking stringreader v0.1.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling lock_api v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking tracing-core v0.1.11
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking rlp v0.4.5
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking creep v0.2.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking crunchy v0.2.2
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking typenum v1.12.0
[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 crc32fast v1.2.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking bytes v0.4.12
[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-0.6.18/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=0bf2c0c5f07aac96 -C extra-filename=-0bf2c0c5f07aac96 --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" "4d3c08515f3700e8efbcc49b613d7c83fb2f07d3f0b7ee5ea6dc27b934c5b504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d3c08515f3700e8efbcc49b613d7c83fb2f07d3f0b7ee5ea6dc27b934c5b504", kill_on_drop: false }`
[INFO] [stdout] 4d3c08515f3700e8efbcc49b613d7c83fb2f07d3f0b7ee5ea6dc27b934c5b504