[INFO] cloning repository https://github.com/KaoImin/muta-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KaoImin/muta-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaoImin%2Fmuta-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaoImin%2Fmuta-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82e3a133768704909144cd7ae1143f3d8fab240a
[INFO] checking KaoImin/muta-demo against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaoImin%2Fmuta-demo" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KaoImin/muta-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-11/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/KaoImin/muta-demo
[INFO] finished tweaking git repo https://github.com/KaoImin/muta-demo
[INFO] tweaked toml for git repo https://github.com/KaoImin/muta-demo written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/KaoImin/muta-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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 170499dbf01afd82c9bad5444b285cd554172837dec429db9bbc42db153dffc6
[INFO] running `Command { std: "docker" "start" "-a" "170499dbf01afd82c9bad5444b285cd554172837dec429db9bbc42db153dffc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "170499dbf01afd82c9bad5444b285cd554172837dec429db9bbc42db153dffc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "170499dbf01afd82c9bad5444b285cd554172837dec429db9bbc42db153dffc6", kill_on_drop: false }`
[INFO] [stdout] 170499dbf01afd82c9bad5444b285cd554172837dec429db9bbc42db153dffc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 53ebca2083cea608eaebd8e07f48a3b1e05f55c395d5cfbbfd6dbdbdd6076bd7
[INFO] running `Command { std: "docker" "start" "-a" "53ebca2083cea608eaebd8e07f48a3b1e05f55c395d5cfbbfd6dbdbdd6076bd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling anyhow v1.0.36
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking dyn-clone v1.0.3
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking bech32 v0.7.2
[INFO] [stderr]     Checking smol_str v0.1.17
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling futures v0.1.30
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking miracl_amcl v3.2.5
[INFO] [stderr]    Compiling protobuf v2.18.1
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling bindgen v0.54.0
[INFO] [stderr]    Compiling prometheus v0.8.0 (https://github.com/tikv/rust-prometheus.git?rev=fd122caa03#fd122caa)
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]     Checking faster-hex v0.4.1
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling tentacle-secio v0.4.0 (http://github.com/zeroqn/p2p?rev=b2682d2#b2682d27)
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking unsigned-varint v0.3.3
[INFO] [stderr]     Checking bs58 v0.3.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling symbolic-demangle v8.0.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking static_merkle_tree v1.1.0
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking stringreader v0.1.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking fs_extra v1.2.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling lock_api v0.2.0
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking tinyvec v1.1.0
[INFO] [stderr]     Checking rlp v0.4.6
[INFO] [stderr]     Checking creep v0.2.2
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling ahash v0.6.2
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking debugid v0.7.2
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling cpp_demangle v0.3.2
[INFO] [stderr]     Checking crunchy v0.2.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[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]     Checking unicode-normalization v0.1.16
[INFO] [stderr]     Checking lru v0.6.3
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking xml-rs v0.7.0
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]    Compiling uint v0.4.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking base64 v0.10.1
[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-0.6.21/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=5476c750da7ba7f3 -C extra-filename=-5476c750da7ba7f3 --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" "53ebca2083cea608eaebd8e07f48a3b1e05f55c395d5cfbbfd6dbdbdd6076bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53ebca2083cea608eaebd8e07f48a3b1e05f55c395d5cfbbfd6dbdbdd6076bd7", kill_on_drop: false }`
[INFO] [stdout] 53ebca2083cea608eaebd8e07f48a3b1e05f55c395d5cfbbfd6dbdbdd6076bd7