[INFO] fetching crate grin_wallet_controller 4.0.0...
[INFO] testing grin_wallet_controller-4.0.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate grin_wallet_controller 4.0.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate grin_wallet_controller 4.0.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grin_wallet_controller 4.0.0
[INFO] finished tweaking crates.io crate grin_wallet_controller 4.0.0
[INFO] tweaked toml for crates.io crate grin_wallet_controller 4.0.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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 grin_wallet_impls v4.0.0
[INFO] [stderr]   Downloaded grin_wallet_api v4.0.0
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fba5201f520667d5f71ef5c72f9bbdf76fbbdfa21a754fe81b329a5d3979a037
[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" "fba5201f520667d5f71ef5c72f9bbdf76fbbdfa21a754fe81b329a5d3979a037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fba5201f520667d5f71ef5c72f9bbdf76fbbdfa21a754fe81b329a5d3979a037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba5201f520667d5f71ef5c72f9bbdf76fbbdfa21a754fe81b329a5d3979a037", kill_on_drop: false }`
[INFO] [stdout] fba5201f520667d5f71ef5c72f9bbdf76fbbdfa21a754fe81b329a5d3979a037
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f041807b9ba74cab8caf6234a21483c2c48185d6af0456919828f9cf32ae0f70
[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" "f041807b9ba74cab8caf6234a21483c2c48185d6af0456919828f9cf32ae0f70", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]    Compiling odds v0.2.26
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling supercow v0.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling cookie-factory v0.3.1
[INFO] [stderr]    Compiling sysinfo v0.14.15
[INFO] [stderr]    Compiling bech32 v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling grin_secp256k1zkp v0.7.10
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[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 crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling radix64 v0.6.2
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling liblmdb-sys v0.2.2
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling ed25519 v1.0.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling arrayvec v0.3.25
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling stream-cipher v0.3.2
[INFO] [stderr]    Compiling universal-hash v0.3.0
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling crypto-mac v0.6.2
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling aes-soft v0.3.3
[INFO] [stderr]    Compiling blowfish v0.4.0
[INFO] [stderr]    Compiling block-modes v0.3.3
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling poly1305 v0.5.2
[INFO] [stderr]    Compiling sha2 v0.9.2
[INFO] [stderr]    Compiling ctr v0.3.2
[INFO] [stderr]    Compiling c2-chacha v0.2.4
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling ripemd160 v0.7.0
[INFO] [stderr]    Compiling hmac v0.6.3
[INFO] [stderr]    Compiling ct-logs v0.6.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling aes v0.3.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling scrypt v0.2.0
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling aes-ctr v0.3.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pbkdf2 v0.2.3
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling lmdb-zero v0.4.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling age-core v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=429f7c7999a2f75d -C extra-filename=-429f7c7999a2f75d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8f6fa10a3a7979c3.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1404a83f3aa5c70e.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-f8061977f7601210.rmeta --cap-lints allow --cap-lints=warn --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path --cfg syn_disable_nightly_tests` (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" "f041807b9ba74cab8caf6234a21483c2c48185d6af0456919828f9cf32ae0f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f041807b9ba74cab8caf6234a21483c2c48185d6af0456919828f9cf32ae0f70", kill_on_drop: false }`
[INFO] [stdout] f041807b9ba74cab8caf6234a21483c2c48185d6af0456919828f9cf32ae0f70