[INFO] fetching crate wagyu 0.6.3...
[INFO] testing wagyu-0.6.3 against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] extracting crate wagyu 0.6.3 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate wagyu 0.6.3 on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wagyu 0.6.3
[INFO] finished tweaking crates.io crate wagyu 0.6.3
[INFO] tweaked toml for crates.io crate wagyu 0.6.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate wagyu 0.6.3 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" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pairing v0.16.0
[INFO] [stderr]   Downloaded ff_derive v0.6.0
[INFO] [stderr]   Downloaded sha2 v0.8.1
[INFO] [stderr]   Downloaded ff v0.6.0
[INFO] [stderr]   Downloaded group v0.6.0
[INFO] [stderr]   Downloaded aes v0.3.2
[INFO] [stderr]   Downloaded fpe v0.2.0
[INFO] [stderr]   Downloaded crypto_api v0.2.2
[INFO] [stderr]   Downloaded aesni v0.6.0
[INFO] [stderr]   Downloaded wagyu-zcash-parameters v0.2.0
[INFO] [stderr]   Downloaded blake2s_simd v0.5.10
[INFO] [stderr]   Downloaded wagyu-model v0.6.3
[INFO] [stderr]   Downloaded serde_json v1.0.50
[INFO] [stderr]   Downloaded serde v1.0.105
[INFO] [stderr]   Downloaded uint v0.8.2
[INFO] [stderr]   Downloaded serde_derive v1.0.105
[INFO] [stderr]   Downloaded secp256k1 v0.17.2
[INFO] [stderr]   Downloaded rlp v0.4.5
[INFO] [stderr]   Downloaded failure_derive v0.1.7
[INFO] [stderr]   Downloaded ripemd160 v0.8.0
[INFO] [stderr]   Downloaded secp256k1-sys v0.1.2
[INFO] [stderr]   Downloaded impl-serde v0.3.0
[INFO] [stderr]   Downloaded backtrace v0.3.45
[INFO] [stderr]   Downloaded failure v0.1.7
[INFO] [stderr]   Downloaded parity-scale-codec v1.2.0
[INFO] [stderr]   Downloaded bitvec v0.15.2
[INFO] [stderr]   Downloaded generic-array v0.9.0
[INFO] [stderr]   Downloaded block-buffer v0.3.3
[INFO] [stderr]   Downloaded opaque-debug v0.1.1
[INFO] [stderr]   Downloaded block-cipher-trait v0.5.3
[INFO] [stderr]   Downloaded byte-tools v0.2.0
[INFO] [stderr]   Downloaded digest v0.7.6
[INFO] [stderr]   Downloaded tiny-keccak v2.0.1
[INFO] [stderr]   Downloaded subtle v2.2.2
[INFO] [stderr]   Downloaded cmake v0.1.42
[INFO] [stderr]   Downloaded wagyu-monero v0.6.3
[INFO] [stderr]   Downloaded rayon v1.3.0
[INFO] [stderr]   Downloaded wagyu-bitcoin v0.6.3
[INFO] [stderr]   Downloaded block-cipher-trait v0.6.2
[INFO] [stderr]   Downloaded bellman v0.6.0
[INFO] [stderr]   Downloaded rayon-core v1.7.0
[INFO] [stderr]   Downloaded ripemd160 v0.7.0
[INFO] [stderr]   Downloaded fixed-hash v0.6.0
[INFO] [stderr]   Downloaded primitive-types v0.7.0
[INFO] [stderr]   Downloaded ethereum-types v0.9.0
[INFO] [stderr]   Downloaded wagyu-ethereum v0.6.3
[INFO] [stderr]   Downloaded aes v0.2.0
[INFO] [stderr]   Downloaded fpe v0.1.0
[INFO] [stderr]   Downloaded field-derive v0.6.1
[INFO] [stderr]   Downloaded stream-cipher v0.1.1
[INFO] [stderr]   Downloaded zeroize v1.1.0
[INFO] [stderr]   Downloaded aes-soft v0.3.3
[INFO] [stderr]   Downloaded cc v1.0.41
[INFO] [stderr]   Downloaded impl-rlp v0.2.1
[INFO] [stderr]   Downloaded bit-vec v0.4.4
[INFO] [stderr]   Downloaded aes-soft v0.2.0
[INFO] [stderr]   Downloaded zcash_proofs v0.2.0
[INFO] [stderr]   Downloaded zcash_primitives v0.2.0
[INFO] [stderr]   Downloaded aesni v0.4.1
[INFO] [stderr]   Downloaded base58-monero v0.2.0
[INFO] [stderr]   Downloaded crypto_api_chachapoly v0.2.2
[INFO] [stderr]   Downloaded ethbloom v0.9.0
[INFO] [stderr]   Downloaded curve25519-dalek v2.0.0
[INFO] [stderr]   Downloaded tokio v0.2.13
[INFO] [stderr]   Downloaded backtrace-sys v0.1.34
[INFO] [stderr]   Downloaded wagyu-zcash v0.6.3
[INFO] [stderr]   Downloaded rust-crypto v0.2.36
[INFO] [stderr]   Downloaded wagyu-zcash-parameters-6 v0.2.0
[INFO] [stderr]   Downloaded wagyu-zcash-parameters-4 v0.2.0
[INFO] [stderr]   Downloaded wagyu-zcash-parameters-1 v0.2.0
[INFO] [stderr]   Downloaded wagyu-zcash-parameters-5 v0.2.0
[INFO] [stderr]   Downloaded wagyu-zcash-parameters-2 v0.2.0
[INFO] [stderr]   Downloaded wagyu-zcash-parameters-3 v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f94ecea4c22e97a03c973ab008a4bcd426085b96cd9e1a83d9aeac4ba9f4cac6
[INFO] running `Command { std: "docker" "start" "-a" "f94ecea4c22e97a03c973ab008a4bcd426085b96cd9e1a83d9aeac4ba9f4cac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f94ecea4c22e97a03c973ab008a4bcd426085b96cd9e1a83d9aeac4ba9f4cac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f94ecea4c22e97a03c973ab008a4bcd426085b96cd9e1a83d9aeac4ba9f4cac6", kill_on_drop: false }`
[INFO] [stdout] f94ecea4c22e97a03c973ab008a4bcd426085b96cd9e1a83d9aeac4ba9f4cac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f68a340517ee3782ee0adbc984a2339a51e598daf15f7c91eecd7b81963c6b5e
[INFO] running `Command { std: "docker" "start" "-a" "f68a340517ee3782ee0adbc984a2339a51e598daf15f7c91eecd7b81963c6b5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.1
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling bitvec v0.15.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rlp v0.4.5
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling impl-rlp v0.2.1
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling pin-project-lite v0.1.4
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling uint v0.8.2
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling tokio v0.2.13
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling base58 v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bech32 v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling fixed-hash v0.6.0
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling block-cipher-trait v0.6.2
[INFO] [stderr]    Compiling ripemd160 v0.8.0
[INFO] [stderr]    Compiling aes-soft v0.3.3
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling block-cipher-trait v0.5.3
[INFO] [stderr]    Compiling blake2s_simd v0.5.10
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling opaque-debug v0.1.1
[INFO] [stderr]    Compiling crypto_api v0.2.2
[INFO] [stderr]    Compiling aes v0.3.2
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling crypto_api_chachapoly v0.2.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling aes-soft v0.2.0
[INFO] [stderr]    Compiling blake2b_simd v0.5.10
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling fpe v0.2.0
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling zeroize v1.1.0
[INFO] [stderr]    Compiling radium v0.3.0
[INFO] [stderr]    Compiling subtle v2.2.2
[INFO] [stderr]    Compiling bitvec v0.17.4
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling aes v0.2.0
[INFO] [stderr]    Compiling curve25519-dalek v2.0.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling directories v1.0.2
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling wagyu-monero v0.6.3
[INFO] [stderr]    Compiling wagyu-zcash-parameters-3 v0.2.0
[INFO] [stderr]    Compiling wagyu-zcash-parameters-2 v0.2.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling wagyu-zcash-parameters-5 v0.2.0
[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-1.0.16/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 -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"' --cfg 'feature="visit-mut"' -C metadata=f8efe395ce3b7d9b -C extra-filename=-f8efe395ce3b7d9b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f749ead4c488b32b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9e4f06421d6e6993.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1256a373de2a2211.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f68a340517ee3782ee0adbc984a2339a51e598daf15f7c91eecd7b81963c6b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68a340517ee3782ee0adbc984a2339a51e598daf15f7c91eecd7b81963c6b5e", kill_on_drop: false }`
[INFO] [stdout] f68a340517ee3782ee0adbc984a2339a51e598daf15f7c91eecd7b81963c6b5e