[INFO] cloning repository https://github.com/bifrost-codes/substrate-rpc-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bifrost-codes/substrate-rpc-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbifrost-codes%2Fsubstrate-rpc-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbifrost-codes%2Fsubstrate-rpc-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1cd17fbd9cfb3f80d1100abed3be1a35d9e8e7e
[INFO] checking bifrost-codes/substrate-rpc-client against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbifrost-codes%2Fsubstrate-rpc-client" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bifrost-codes/substrate-rpc-client on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bifrost-codes/substrate-rpc-client
[INFO] finished tweaking git repo https://github.com/bifrost-codes/substrate-rpc-client
[INFO] tweaked toml for git repo https://github.com/bifrost-codes/substrate-rpc-client written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/bifrost-codes/substrate-rpc-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3430845f191fe84d320a07dba1139b252bb65d23f42c1984dd81fc1e31f7d94c
[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" "3430845f191fe84d320a07dba1139b252bb65d23f42c1984dd81fc1e31f7d94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3430845f191fe84d320a07dba1139b252bb65d23f42c1984dd81fc1e31f7d94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3430845f191fe84d320a07dba1139b252bb65d23f42c1984dd81fc1e31f7d94c", kill_on_drop: false }`
[INFO] [stdout] 3430845f191fe84d320a07dba1139b252bb65d23f42c1984dd81fc1e31f7d94c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4ad6a375a1d83e2b8d42938114ae5cbd607ee22a5f599222bdcaf43dc6cec10
[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" "d4ad6a375a1d83e2b8d42938114ae5cbd607ee22a5f599222bdcaf43dc6cec10", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking byte-slice-cast v0.3.4
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking bitvec v0.15.2
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling subtle v2.2.1
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking sr-std v2.0.0 (https://github.com/paritytech/substrate?rev=605852eaa414ddae0bb12bb4974b9cba24ccf7db#605852ea)
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking zeroize v0.9.3
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking environmental v1.0.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.1
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking integer-sqrt v0.1.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking once_cell v0.2.4
[INFO] [stderr]     Checking strum v0.15.0
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking bitcoin_hashes v0.7.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling secp256k1 v0.15.3 (https://github.com/bifrost-codes/rust-secp256k1#9c756f7e)
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking trie-root v0.15.2
[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 num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking tracing-core v0.1.7
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling safe-mix v1.0.0
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking elastic-array v0.10.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking hash256-std-hasher v0.15.2
[INFO] [stderr]     Checking wasmi-validation v0.3.0
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking tokio-sync v0.1.7
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking backtrace v0.3.39
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking uint v0.8.1
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.10
[INFO] [stderr]    Compiling substrate-debug-derive v2.0.0 (https://github.com/paritytech/substrate?rev=605852eaa414ddae0bb12bb4974b9cba24ccf7db#605852ea)
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.1.3
[INFO] [stderr]    Compiling frame-support-procedural-tools-derive v2.0.0 (https://github.com/paritytech/substrate?rev=605852eaa414ddae0bb12bb4974b9cba24ccf7db#605852ea)
[INFO] [stderr]    Compiling tracing-attributes v0.1.5
[INFO] [stderr]    Compiling eosio-core-derive v0.2.1 (https://github.com/bifrost-codes/rust-eos?branch=use-rust-secp256k1#ab1b387e)
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]     Checking merlin v1.2.1
[INFO] [stderr]     Checking substrate-panic-handler v2.0.0 (https://github.com/paritytech/substrate?rev=605852eaa414ddae0bb12bb4974b9cba24ccf7db#605852ea)
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.3.1/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="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="thread_local"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=213033e7edc9e105 -C extra-filename=-213033e7edc9e105 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-b5c0b946c48ff4ab.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-b94c7254a079d159.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-e7b15ed4ae6ae857.rmeta --extern thread_local=/opt/rustwide/target/debug/deps/libthread_local-af9c7a5567d33a59.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" "d4ad6a375a1d83e2b8d42938114ae5cbd607ee22a5f599222bdcaf43dc6cec10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4ad6a375a1d83e2b8d42938114ae5cbd607ee22a5f599222bdcaf43dc6cec10", kill_on_drop: false }`
[INFO] [stdout] d4ad6a375a1d83e2b8d42938114ae5cbd607ee22a5f599222bdcaf43dc6cec10