[INFO] cloning repository https://github.com/hoardexchange/cacherz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hoardexchange/cacherz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoardexchange%2Fcacherz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoardexchange%2Fcacherz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6903db9135450ac445d0183e5fab2b2b5e4b038d
[INFO] checking hoardexchange/cacherz against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoardexchange%2Fcacherz" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hoardexchange/cacherz on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hoardexchange/cacherz
[INFO] finished tweaking git repo https://github.com/hoardexchange/cacherz
[INFO] tweaked toml for git repo https://github.com/hoardexchange/cacherz written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/hoardexchange/cacherz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: llvm
[INFO] [stderr] warning: unused manifest key: rust
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 543cb20948fe0b0a470f9d90513cfb0340bd3ae824c6a981a3172b86fa55b00f
[INFO] running `Command { std: "docker" "start" "-a" "543cb20948fe0b0a470f9d90513cfb0340bd3ae824c6a981a3172b86fa55b00f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "543cb20948fe0b0a470f9d90513cfb0340bd3ae824c6a981a3172b86fa55b00f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "543cb20948fe0b0a470f9d90513cfb0340bd3ae824c6a981a3172b86fa55b00f", kill_on_drop: false }`
[INFO] [stdout] 543cb20948fe0b0a470f9d90513cfb0340bd3ae824c6a981a3172b86fa55b00f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e944888654edda263161198270d2598a6c2373ff504a518e38fce1b9c92cf059
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e944888654edda263161198270d2598a6c2373ff504a518e38fce1b9c92cf059", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: llvm
[INFO] [stderr] warning: unused manifest key: rust
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking arc-swap v0.3.6
[INFO] [stderr]     Checking string v0.1.2
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]    Compiling encoding_rs v0.8.13
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking askama_escape v0.1.0
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking base64 v0.10.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]    Compiling actix-web v0.7.16
[INFO] [stderr]     Checking tokio-executor v0.1.5
[INFO] [stderr]     Checking tower-service v0.1.0
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]     Checking lru-cache v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking tokio-timer v0.2.8
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking tiny-keccak v1.4.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking uint v0.4.1
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking crossbeam-deque v0.6.2
[INFO] [stderr]     Checking libflate v0.1.19
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking signal-hook v0.1.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking mime v0.3.12
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking resolv-conf v0.6.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking fixed-hash v0.2.5
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking http v0.1.14
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking parking_lot v0.7.0
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking crossbeam-channel v0.3.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]     Checking h2 v0.1.14
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]     Checking ethereum-types-serialize v0.2.1
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking ethbloom v0.5.0
[INFO] [stderr]    Compiling blob v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling lz4-sys v1.8.0 (https://github.com/busyjay/lz4-rs.git?branch=adjust-build#41509fea)
[INFO] [stderr]    Compiling bzip2-sys v0.1.7 (https://github.com/alexcrichton/bzip2-rs.git#50c3d852)
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling snappy-sys v0.1.0 (https://github.com/busyjay/rust-snappy.git?branch=static-link#be021783)
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling librocksdb_sys v0.1.0 (https://github.com/pingcap/rust-rocksdb.git#43393ed5)
[INFO] [stderr]    Compiling rlua v0.15.3
[INFO] [stderr]     Checking ethereum-types v0.4.0
[INFO] [stderr]    Compiling zstd-sys v1.4.6+zstd.1.3.7 (https://github.com/gyscos/zstd-rs.git#ef551d24)
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.22/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -Cembed-bitcode=no -C debuginfo=2 --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"' -C metadata=8c196da5fb4fb183 -C extra-filename=-8c196da5fb4fb183 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-fbbc14a48ff5dc4b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-260d5f31cbe9f7f5.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-5ef45b28e7fc52f2.rmeta --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" "e944888654edda263161198270d2598a6c2373ff504a518e38fce1b9c92cf059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e944888654edda263161198270d2598a6c2373ff504a518e38fce1b9c92cf059", kill_on_drop: false }`
[INFO] [stdout] e944888654edda263161198270d2598a6c2373ff504a518e38fce1b9c92cf059