[INFO] crate solana-librapay-api 0.20.1 is already in cache
[INFO] checking solana-librapay-api-0.20.1 against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] extracting crate solana-librapay-api 0.20.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate solana-librapay-api 0.20.1 on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate solana-librapay-api 0.20.1
[INFO] finished tweaking crates.io crate solana-librapay-api 0.20.1
[INFO] tweaked toml for crates.io crate solana-librapay-api 0.20.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6220aae50d340bb2fbacffbbc9de85c169a4b0c5cb3f36e9f74c183c5e143e55
[INFO] running `"docker" "start" "-a" "6220aae50d340bb2fbacffbbc9de85c169a4b0c5cb3f36e9f74c183c5e143e55"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling memsec v0.5.7
[INFO] [stderr]     Checking solana_libra_failure_macros v0.0.1-sol4
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]     Checking mirai-annotations v1.6.1
[INFO] [stderr]     Checking unsigned-varint v0.2.3
[INFO] [stderr]     Checking bs58 v0.2.5
[INFO] [stderr]    Compiling prometheus v0.7.0
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking radix_trie v0.1.6
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking errno v0.2.5
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling derivative v2.1.0
[INFO] [stderr]    Compiling solana_libra_crypto-derive v0.0.1-sol4
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking solana_libra_tools v0.0.1-sol4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]     Checking rand04 v0.1.1
[INFO] [stderr]     Checking pairing v0.14.2
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking bv v0.11.1
[INFO] [stderr]     Checking parity-multihash v0.1.3
[INFO] [stderr]     Checking solana-rayon-threadlimit v0.20.5
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]     Checking pretty_env_logger v0.2.5
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking rand04_compat v0.1.1
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]     Checking proptest v0.9.5
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking parity-multiaddr v0.5.0
[INFO] [stderr]     Checking slog-stdlog v4.0.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking solana_libra_failure_ext v0.0.1-sol4
[INFO] [stderr]     Checking codespan v0.2.1
[INFO] [stderr]     Checking threshold_crypto v0.3.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking elfkit v0.0.6
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]     Checking x25519-dalek v0.5.2
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.1
[INFO] [stderr]     Checking slog-envlogger v2.2.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]     Checking solana_libra_canonical_serialization v0.0.1-sol4
[INFO] [stderr]     Checking solana_libra_vm_cache_map v0.0.1-sol4
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking codespan-reporting v0.2.1
[INFO] [stderr]     Checking solana_rbpf v0.1.19
[INFO] [stderr]     Checking solana-crate-features v0.20.5
[INFO] [stderr]     Checking solana-sdk v0.20.5
[INFO] [stderr]    Compiling structopt-derive v0.4.5
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]     Checking solana_libra_logger v0.0.1-sol4
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]     Checking solana_libra_metrics v0.0.1-sol4
[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 --crate-type lib --emit=dep-info,metadata,link -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"' -C metadata=93d56702c1bafd27 -C extra-filename=-93d56702c1bafd27 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-bc931ad735837863.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-7c7aa95f68deced8.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-fc54b491a1dace89.rmeta --cap-lints allow --cap-lints=forbid --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` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6220aae50d340bb2fbacffbbc9de85c169a4b0c5cb3f36e9f74c183c5e143e55"`
[INFO] running `"docker" "rm" "-f" "6220aae50d340bb2fbacffbbc9de85c169a4b0c5cb3f36e9f74c183c5e143e55"`
[INFO] [stdout] 6220aae50d340bb2fbacffbbc9de85c169a4b0c5cb3f36e9f74c183c5e143e55