[INFO] fetching crate casperlabs-engine-grpc-server 0.20.1...
[INFO] checking casperlabs-engine-grpc-server-0.20.1 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate casperlabs-engine-grpc-server 0.20.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate casperlabs-engine-grpc-server 0.20.1 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate casperlabs-engine-grpc-server 0.20.1
[INFO] finished tweaking crates.io crate casperlabs-engine-grpc-server 0.20.1
[INFO] tweaked toml for crates.io crate casperlabs-engine-grpc-server 0.20.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate casperlabs-engine-grpc-server 0.20.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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 protobuf-codegen v2.8.2
[INFO] [stderr]   Downloaded casperlabs-engine-shared v0.7.1
[INFO] [stderr]   Downloaded casperlabs-standard-payment v0.4.1
[INFO] [stderr]   Downloaded casperlabs-engine-wasm-prep v0.6.1
[INFO] [stderr]   Downloaded base16 v0.2.1
[INFO] [stderr]   Downloaded grpc v0.6.2
[INFO] [stderr]   Downloaded casperlabs-engine-core v0.7.1
[INFO] [stderr]   Downloaded casperlabs-types v0.6.1
[INFO] [stderr]   Downloaded casperlabs-mint v0.4.1
[INFO] [stderr]   Downloaded casperlabs-proof-of-stake v0.4.1
[INFO] [stderr]   Downloaded wabt-sys v0.8.0
[INFO] [stderr]   Downloaded wabt v0.10.0
[INFO] [stderr]   Downloaded protoc-rust v2.8.2
[INFO] [stderr]   Downloaded casperlabs-engine-storage v0.7.1
[INFO] [stderr]   Downloaded lmdb v0.8.0
[INFO] [stderr]   Downloaded protoc v2.8.2
[INFO] [stderr]   Downloaded casperlabs-contract v0.6.1
[INFO] [stderr]   Downloaded num-derive v0.3.1
[INFO] [stderr]   Downloaded protobuf v2.8.2
[INFO] [stderr]   Downloaded grpc-compiler v0.6.2
[INFO] [stderr]   Downloaded protoc-rust-grpc v0.6.2
[INFO] [stderr]   Downloaded lmdb-sys v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78617ee25f2d53d5c1cac0726a462dd915061b37ccaf1ea0756e9b800069ee1d
[INFO] running `Command { std: "docker" "start" "-a" "78617ee25f2d53d5c1cac0726a462dd915061b37ccaf1ea0756e9b800069ee1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78617ee25f2d53d5c1cac0726a462dd915061b37ccaf1ea0756e9b800069ee1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78617ee25f2d53d5c1cac0726a462dd915061b37ccaf1ea0756e9b800069ee1d", kill_on_drop: false }`
[INFO] [stdout] 78617ee25f2d53d5c1cac0726a462dd915061b37ccaf1ea0756e9b800069ee1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4010f20897b3e0368a2aa64f64234b500eaef6396400d3f1d217d7470128f86
[INFO] running `Command { std: "docker" "start" "-a" "f4010f20897b3e0368a2aa64f64234b500eaef6396400d3f1d217d7470128f86", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling protobuf v2.8.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking base16 v0.2.1
[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling httpbis v0.7.0
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling lmdb-sys v0.8.0
[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 itertools v0.8.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking uint v0.8.3
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[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]    Compiling wabt-sys v0.8.0
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking wasmi-validation v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking wasmi v0.6.2
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking lmdb v0.8.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.9.6
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.36/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="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=56e4b4a843d48358 -C extra-filename=-56e4b4a843d48358 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-568b3a563ff7fb3d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-83260bb8ddf65144.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-accda8c4d770d472.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" "f4010f20897b3e0368a2aa64f64234b500eaef6396400d3f1d217d7470128f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4010f20897b3e0368a2aa64f64234b500eaef6396400d3f1d217d7470128f86", kill_on_drop: false }`
[INFO] [stdout] f4010f20897b3e0368a2aa64f64234b500eaef6396400d3f1d217d7470128f86