[INFO] fetching crate cakerabbit-core 0.1.3...
[INFO] building cakerabbit-core-0.1.3 against master#70591dc15db32941fe3595fdbf98e58d6975f95e for pr-127731
[INFO] extracting crate cakerabbit-core 0.1.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate cakerabbit-core 0.1.3 on toolchain 70591dc15db32941fe3595fdbf98e58d6975f95e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+70591dc15db32941fe3595fdbf98e58d6975f95e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cakerabbit-core 0.1.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cakerabbit-core 0.1.3
[INFO] tweaked toml for crates.io crate cakerabbit-core 0.1.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate cakerabbit-core 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+70591dc15db32941fe3595fdbf98e58d6975f95e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp v0.8.10
[INFO] [stderr]   Downloaded local_ipaddress v0.1.3
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[INFO] [stderr]   Downloaded trust-dns-resolver v0.19.7
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[INFO] [stderr]   Downloaded pin-project v0.4.28
[INFO] [stderr]   Downloaded actix-http v2.2.1
[INFO] [stderr]   Downloaded actix-web v3.3.2
[INFO] [stderr]   Downloaded derive_more v0.99.16
[INFO] [stderr]   Downloaded trust-dns-proto v0.19.7
[INFO] [stderr]   Downloaded object v0.26.2
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[INFO] [stderr]   Downloaded actix-service v1.0.6
[INFO] [stderr]   Downloaded brotli-sys v0.3.2
[INFO] [stderr]   Downloaded awc v2.0.3
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[INFO] [stderr]   Downloaded ipconfig v0.2.2
[INFO] [stderr]   Downloaded libc v0.2.115
[INFO] [stderr]   Downloaded enum-as-inner v0.3.3
[INFO] [stderr]   Downloaded gimli v0.25.0
[INFO] [stderr]   Downloaded consul-rs-plus v0.1.7
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[INFO] [stderr]   Downloaded brotli2 v0.3.2
[INFO] [stderr]   Downloaded actix-rt v1.1.1
[INFO] [stderr]   Downloaded const_fn v0.4.8
[INFO] [stderr]   Downloaded ctrlc v3.2.1
[INFO] [stderr]   Downloaded actix-router v0.2.7
[INFO] [stderr]   Downloaded actix-server v1.0.4
[INFO] [stderr]   Downloaded sha1 v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+70591dc15db32941fe3595fdbf98e58d6975f95e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc5e36d8d90b7ad63edccc571ba25ed6c0f1c10a1804882f79d6ad077a041a17
[INFO] running `Command { std: "docker" "start" "-a" "bc5e36d8d90b7ad63edccc571ba25ed6c0f1c10a1804882f79d6ad077a041a17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc5e36d8d90b7ad63edccc571ba25ed6c0f1c10a1804882f79d6ad077a041a17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc5e36d8d90b7ad63edccc571ba25ed6c0f1c10a1804882f79d6ad077a041a17", kill_on_drop: false }`
[INFO] [stdout] bc5e36d8d90b7ad63edccc571ba25ed6c0f1c10a1804882f79d6ad077a041a17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+70591dc15db32941fe3595fdbf98e58d6975f95e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ecce0edf64d22caf965c427436090e3a4a398db7f394f8cb2a8023d4d9da95a
[INFO] running `Command { std: "docker" "start" "-a" "8ecce0edf64d22caf965c427436090e3a4a398db7f394f8cb2a8023d4d9da95a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.115
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
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[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.6
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
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[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling ryu v1.0.5
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[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
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[INFO] [stderr]    Compiling openssl-sys v0.9.66
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[INFO] [stderr]    Compiling httparse v1.5.1
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[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_core v0.3.1
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[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
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[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling rand_chacha v0.2.2
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[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling tokio-sync v0.1.8
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[INFO] [stderr]    Compiling time v0.1.44
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[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling match_cfg v0.1.0
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[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling http v0.2.5
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling flate2 v1.0.21
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/70591dc15db32941fe3595fdbf98e58d6975f95e/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-1.0.75/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=7297580b4002db63 -C extra-filename=-7297580b4002db63 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-421362122a8d5a42.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9c24213ca5b97351.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b11525fba24dfc5c.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8ecce0edf64d22caf965c427436090e3a4a398db7f394f8cb2a8023d4d9da95a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ecce0edf64d22caf965c427436090e3a4a398db7f394f8cb2a8023d4d9da95a", kill_on_drop: false }`
[INFO] [stdout] 8ecce0edf64d22caf965c427436090e3a4a398db7f394f8cb2a8023d4d9da95a