[INFO] cloning repository https://github.com/bifrost-finance/bifrost-xt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bifrost-finance/bifrost-xt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbifrost-finance%2Fbifrost-xt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbifrost-finance%2Fbifrost-xt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e3283a992888e29cc7d46ea6cacea0a4109dfbd
[INFO] testing bifrost-finance/bifrost-xt against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbifrost-finance%2Fbifrost-xt" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bifrost-finance/bifrost-xt on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bifrost-finance/bifrost-xt
[INFO] finished tweaking git repo https://github.com/bifrost-finance/bifrost-xt
[INFO] tweaked toml for git repo https://github.com/bifrost-finance/bifrost-xt written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/bifrost-finance/bifrost-xt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41fcef1f7654919a8090dfe2cb088d529f3ec6506da413ec3474b6b2b0813a40
[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" "41fcef1f7654919a8090dfe2cb088d529f3ec6506da413ec3474b6b2b0813a40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41fcef1f7654919a8090dfe2cb088d529f3ec6506da413ec3474b6b2b0813a40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41fcef1f7654919a8090dfe2cb088d529f3ec6506da413ec3474b6b2b0813a40", kill_on_drop: false }`
[INFO] [stdout] 41fcef1f7654919a8090dfe2cb088d529f3ec6506da413ec3474b6b2b0813a40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71b5de4af0b93d879bcd666e3383b323b3464f0e0248fa44601c5696cbfa584a
[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" "71b5de4af0b93d879bcd666e3383b323b3464f0e0248fa44601c5696cbfa584a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling instant v0.1.6
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling futures-sink v0.3.7
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling radium v0.3.0
[INFO] [stderr]    Compiling byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling subtle v2.2.2
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling sp-std v2.0.0
[INFO] [stderr]    Compiling parity-util-mem v0.7.0
[INFO] [stderr]    Compiling signature v1.2.2
[INFO] [stderr]    Compiling parity-wasm v0.41.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling memory_units v0.3.0
[INFO] [stderr]    Compiling hash-db v0.15.2
[INFO] [stderr]    Compiling environmental v1.1.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling dyn-clone v1.0.2
[INFO] [stderr]    Compiling base58 v0.1.0
[INFO] [stderr]    Compiling integer-sqrt v0.1.3
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.60
[INFO] [stderr]    Compiling bumpalo v3.2.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.60
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling send_wrapper v0.4.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling multimap v0.8.1
[INFO] [stderr]    Compiling bs58 v0.3.1
[INFO] [stderr]    Compiling unsigned-varint v0.4.0
[INFO] [stderr]    Compiling waker-fn v1.0.0
[INFO] [stderr]    Compiling unsigned-varint v0.3.3
[INFO] [stderr]    Compiling bitmask v0.5.0
[INFO] [stderr]    Compiling data-encoding v2.2.1
[INFO] [stderr]    Compiling prometheus v0.10.0
[INFO] [stderr]    Compiling fastrand v1.3.4
[INFO] [stderr]    Compiling atomic v0.4.6
[INFO] [stderr]    Compiling bitcoin_hashes v0.7.6
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling tracing-core v0.1.16
[INFO] [stderr]    Compiling sharded-slab v0.0.9
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling hashbrown v0.7.1
[INFO] [stderr]    Compiling tokio v0.3.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]    Compiling ring v0.16.12
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling ed25519 v1.0.1
[INFO] [stderr]    Compiling bitvec v0.17.4
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling trie-root v0.16.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling blake2b_simd v0.5.10
[INFO] [stderr]    Compiling blake2s_simd v0.5.10
[INFO] [stderr]    Compiling tracing v0.1.19
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling kv-log-macro v1.0.4
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling bstr v0.2.12
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling wasmi-validation v0.3.0
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling uint v0.8.2
[INFO] [stderr]    Compiling hash256-std-hasher v0.15.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling globset v0.4.5
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling hmac-drbg v0.2.0
[INFO] [stderr]    Compiling multihash v0.11.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling statrs v0.10.0
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling sp-panic-handler v2.0.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling ahash v0.3.2
[INFO] [stderr]    Compiling ahash v0.2.18
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling futures-task v0.3.7
[INFO] [stderr]    Compiling webpki v0.21.2
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling trie-db v0.22.1
[INFO] [stderr]    Compiling rustls v0.16.0
[INFO] [stderr]    Compiling webpki-roots v0.17.0
[INFO] [stderr]    Compiling lru v0.4.3
[INFO] [stderr]    Compiling wasmi v0.6.2
[INFO] [stderr]    Compiling nalgebra v0.18.1
[INFO] [stderr]    Compiling fixed-hash v0.6.0
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling twox-hash v1.5.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5 (https://github.com/bifrost-finance/libsecp256k1.git#62ee7e4e)
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.60
[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-1.0.48/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="fold"' --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=b396d1cecfd21367 -C extra-filename=-b396d1cecfd21367 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8808f77700de6553.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e2af547ad81787e7.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-9023492ceb52ed9a.rmeta --cap-lints allow --cap-lints=warn --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" "71b5de4af0b93d879bcd666e3383b323b3464f0e0248fa44601c5696cbfa584a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b5de4af0b93d879bcd666e3383b323b3464f0e0248fa44601c5696cbfa584a", kill_on_drop: false }`
[INFO] [stdout] 71b5de4af0b93d879bcd666e3383b323b3464f0e0248fa44601c5696cbfa584a