[INFO] cloning repository https://github.com/pradeepp88/substrate-exercise-3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pradeepp88/substrate-exercise-3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpradeepp88%2Fsubstrate-exercise-3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpradeepp88%2Fsubstrate-exercise-3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4dd2ea017434eff6a68f22b7d03f224cb64c221f
[INFO] checking pradeepp88/substrate-exercise-3 against try#7c3a44cf5f95fa5cf164a312bdcf845157af7093 for pr-77325
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpradeepp88%2Fsubstrate-exercise-3" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pradeepp88/substrate-exercise-3 on toolchain 7c3a44cf5f95fa5cf164a312bdcf845157af7093
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pradeepp88/substrate-exercise-3
[INFO] finished tweaking git repo https://github.com/pradeepp88/substrate-exercise-3
[INFO] tweaked toml for git repo https://github.com/pradeepp88/substrate-exercise-3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/pradeepp88/substrate-exercise-3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sp-utils v2.0.1
[INFO] [stderr]   Downloaded sp-block-builder v2.0.1
[INFO] [stderr]   Downloaded pallet-transaction-payment-rpc-runtime-api v2.0.1
[INFO] [stderr]   Downloaded pallet-grandpa v2.0.1
[INFO] [stderr]   Downloaded frame-executive v2.0.1
[INFO] [stderr]   Downloaded frame-system-rpc-runtime-api v2.0.1
[INFO] [stderr]   Downloaded substrate-frame-rpc-system v2.0.1
[INFO] [stderr]   Downloaded frame-system-benchmarking v2.0.1
[INFO] [stderr]   Downloaded pallet-balances v2.0.1
[INFO] [stderr]   Downloaded sp-allocator v2.0.1
[INFO] [stderr]   Downloaded substrate-build-script-utils v2.0.1
[INFO] [stderr]   Downloaded sc-executor-wasmi v0.8.1
[INFO] [stderr]   Downloaded sc-transaction-graph v2.0.1
[INFO] [stderr]   Downloaded sc-service v0.8.1
[INFO] [stderr]   Downloaded fork-tree v2.0.1
[INFO] [stderr]   Downloaded sc-chain-spec v2.0.1
[INFO] [stderr]   Downloaded sp-consensus-slots v0.8.1
[INFO] [stderr]   Downloaded sc-consensus v0.8.1
[INFO] [stderr]   Downloaded sc-basic-authorship v0.8.1
[INFO] [stderr]   Downloaded substrate-prometheus-endpoint v0.8.1
[INFO] [stderr]   Downloaded sc-cli v0.8.1
[INFO] [stderr]   Downloaded frame-benchmarking-cli v2.0.1
[INFO] [stderr]   Downloaded pallet-transaction-payment-rpc v2.0.1
[INFO] [stderr]   Downloaded pallet-finality-tracker v2.0.1
[INFO] [stderr]   Downloaded sc-finality-grandpa v0.8.1
[INFO] [stderr]   Downloaded sc-network v0.8.1
[INFO] [stderr]   Downloaded sc-tracing v2.0.1
[INFO] [stderr]   Downloaded pallet-sudo v2.0.1
[INFO] [stderr]   Downloaded sc-client-db v0.8.1
[INFO] [stderr]   Downloaded pallet-randomness-collective-flip v2.0.1
[INFO] [stderr]   Downloaded sc-consensus-aura v0.8.1
[INFO] [stderr]   Downloaded sc-network-gossip v0.8.1
[INFO] [stderr]   Downloaded sc-chain-spec-derive v2.0.1
[INFO] [stderr]   Downloaded sc-state-db v0.8.1
[INFO] [stderr]   Downloaded sc-light v2.0.1
[INFO] [stderr]   Downloaded sc-rpc v2.0.1
[INFO] [stderr]   Downloaded sc-offchain v2.0.1
[INFO] [stderr]   Downloaded sc-block-builder v0.8.1
[INFO] [stderr]   Downloaded sc-keystore v2.0.1
[INFO] [stderr]   Downloaded sc-rpc-server v2.0.1
[INFO] [stderr]   Downloaded sc-peerset v2.0.1
[INFO] [stderr]   Downloaded sc-client-api v2.0.1
[INFO] [stderr]   Downloaded sc-proposer-metrics v0.8.1
[INFO] [stderr]   Downloaded sp-serializer v2.0.1
[INFO] [stderr]   Downloaded sc-consensus-slots v0.8.1
[INFO] [stderr]   Downloaded sc-executor-common v0.8.1
[INFO] [stderr]   Downloaded sc-informant v0.8.1
[INFO] [stderr]   Downloaded sp-finality-tracker v2.0.1
[INFO] [stderr]   Downloaded sc-transaction-pool v2.0.1
[INFO] [stderr]   Downloaded sc-executor-wasmtime v0.8.1
[INFO] [stderr]   Downloaded sc-executor v0.8.1
[INFO] [stderr]   Downloaded sc-telemetry v2.0.1
[INFO] [stderr]   Downloaded sp-chain-spec v2.0.1
[INFO] [stderr]   Downloaded sc-rpc-api v0.8.1
[INFO] [stderr]   Downloaded sp-offchain v2.0.1
[INFO] [stderr]   Downloaded multistream-select v0.8.5
[INFO] [stderr]   Downloaded pallet-aura v2.0.1
[INFO] [stderr]   Downloaded sp-consensus v0.8.1
[INFO] [stderr]   Downloaded sp-finality-grandpa v2.0.1
[INFO] [stderr]   Downloaded sp-database v2.0.1
[INFO] [stderr]   Downloaded sp-blockchain v2.0.1
[INFO] [stderr]   Downloaded pallet-transaction-payment v2.0.1
[INFO] [stderr]   Downloaded sp-consensus-aura v0.8.1
[INFO] [stderr]   Downloaded parity-multiaddr v0.9.7
[INFO] [stderr]   Downloaded sp-transaction-pool v2.0.1
[INFO] running `Command { std: "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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 840e0cb2afa0ad106810e07955c834a721b4c786a935d0de0d51af267e7b9480
[INFO] running `Command { std: "docker" "start" "-a" "840e0cb2afa0ad106810e07955c834a721b4c786a935d0de0d51af267e7b9480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "840e0cb2afa0ad106810e07955c834a721b4c786a935d0de0d51af267e7b9480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840e0cb2afa0ad106810e07955c834a721b4c786a935d0de0d51af267e7b9480", kill_on_drop: false }`
[INFO] [stdout] 840e0cb2afa0ad106810e07955c834a721b4c786a935d0de0d51af267e7b9480
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a88f3cb65611528a6755cf96c94747c55fcee0f3311961529234f43bee3f11e
[INFO] running `Command { std: "docker" "start" "-a" "2a88f3cb65611528a6755cf96c94747c55fcee0f3311961529234f43bee3f11e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]     Checking futures-core v0.3.11
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking futures-io v0.3.11
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking futures-sink v0.3.11
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking sp-std v2.0.1
[INFO] [stderr]    Compiling parity-util-mem v0.7.0
[INFO] [stderr]     Checking hash-db v0.15.2
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking environmental v1.1.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking data-encoding v2.3.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.69
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.69
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.66.0
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]     Checking parity-send-wrapper v0.1.0
[INFO] [stderr]     Checking lru_time_cache v0.10.0
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]    Compiling wasmtime-environ v0.19.0
[INFO] [stderr]     Checking wasmparser v0.59.0
[INFO] [stderr]     Checking object v0.19.0
[INFO] [stderr]     Checking arc-swap v1.2.0
[INFO] [stderr]     Checking bitmask v0.5.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking retain_mut v0.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling names v0.11.0
[INFO] [stderr]    Compiling sc-consensus-slots v0.8.1
[INFO] [stderr]    Compiling platforms v0.2.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking ed25519 v1.0.3
[INFO] [stderr]     Checking tinyvec v1.1.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking wasmi-validation v0.3.0
[INFO] [stderr]    Compiling semver v0.6.0
[INFO] [stderr]     Checking futures-channel v0.3.11
[INFO] [stderr]     Checking trie-root v0.16.0
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]     Checking quicksink v0.1.2
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking wast v31.0.0
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking blake2s_simd v0.5.11
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]     Checking linked_hash_set v0.1.4
[INFO] [stderr]     Checking lru v0.6.3
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.22/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="default"' --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=9e9531b190d3ae50 -C extra-filename=-9e9531b190d3ae50 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "2a88f3cb65611528a6755cf96c94747c55fcee0f3311961529234f43bee3f11e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a88f3cb65611528a6755cf96c94747c55fcee0f3311961529234f43bee3f11e", kill_on_drop: false }`
[INFO] [stdout] 2a88f3cb65611528a6755cf96c94747c55fcee0f3311961529234f43bee3f11e