[INFO] cloning repository https://github.com/multitet/medley
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/multitet/medley" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmultitet%2Fmedley", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmultitet%2Fmedley'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c609bc7864126fd909a8fc0726ecf238613aa2ef
[INFO] checking multitet/medley against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmultitet%2Fmedley" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/multitet/medley on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/multitet/medley
[INFO] finished tweaking git repo https://github.com/multitet/medley
[INFO] tweaked toml for git repo https://github.com/multitet/medley written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/multitet/medley already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/paritytech/polkadot`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f003d34a4203ce321ffa09b8a1fa34b6a6a834ef229d3a8ae60bc04cacdad9aa
[INFO] running `Command { std: "docker" "start" "-a" "f003d34a4203ce321ffa09b8a1fa34b6a6a834ef229d3a8ae60bc04cacdad9aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f003d34a4203ce321ffa09b8a1fa34b6a6a834ef229d3a8ae60bc04cacdad9aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f003d34a4203ce321ffa09b8a1fa34b6a6a834ef229d3a8ae60bc04cacdad9aa", kill_on_drop: false }`
[INFO] [stdout] f003d34a4203ce321ffa09b8a1fa34b6a6a834ef229d3a8ae60bc04cacdad9aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28b29ce14a3e458790c3015037ff9114995a1fcf3a7e82058544d73f27a7fafb
[INFO] running `Command { std: "docker" "start" "-a" "28b29ce14a3e458790c3015037ff9114995a1fcf3a7e82058544d73f27a7fafb", 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]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking cfg-if v1.0.0
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[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]     Checking futures-core v0.3.8
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[INFO] [stderr]    Compiling serde_json v1.0.61
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[INFO] [stderr]     Checking pin-project-lite v0.2.1
[INFO] [stderr]     Checking signature v1.3.0
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[INFO] [stderr]    Compiling getrandom v0.2.1
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[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking sp-std v2.0.0 (https://github.com/paritytech/substrate?branch=master#b2750359)
[INFO] [stderr]    Compiling parity-util-mem v0.8.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
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[INFO] [stderr]     Checking parity-wasm v0.41.0
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[INFO] [stderr]    Compiling either v1.6.1
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[INFO] [stderr]     Checking scoped-tls v1.0.0
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[INFO] [stderr]     Checking integer-encoding v1.1.5
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[INFO] [stderr]    Compiling bindgen v0.54.0
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[INFO] [stderr]    Compiling substrate-build-script-utils v2.0.0 (https://github.com/paritytech/substrate?branch=master#b2750359)
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[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking if-addrs v0.6.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking fs-swap v0.2.5
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking fdlimit v0.2.1
[INFO] [stderr]     Checking rpassword v5.0.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling build-helper v0.1.1
[INFO] [stderr]     Checking memrange v0.1.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling parity-wasm v0.32.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking uint v0.9.0
[INFO] [stderr]     Checking hash256-std-hasher v0.15.2
[INFO] [stderr]     Checking uint v0.8.5
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking unicode-normalization v0.1.16
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking trie-db v0.22.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking regalloc v0.0.27
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[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-0.6.21/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=5476c750da7ba7f3 -C extra-filename=-5476c750da7ba7f3 --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" "28b29ce14a3e458790c3015037ff9114995a1fcf3a7e82058544d73f27a7fafb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28b29ce14a3e458790c3015037ff9114995a1fcf3a7e82058544d73f27a7fafb", kill_on_drop: false }`
[INFO] [stdout] 28b29ce14a3e458790c3015037ff9114995a1fcf3a7e82058544d73f27a7fafb