[INFO] cloning repository https://github.com/chenzongxiong/rococo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chenzongxiong/rococo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenzongxiong%2Frococo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenzongxiong%2Frococo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49eccbd300b61890de6f1e127088e798a55ec2cd
[INFO] checking chenzongxiong/rococo against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenzongxiong%2Frococo" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chenzongxiong/rococo on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chenzongxiong/rococo
[INFO] finished tweaking git repo https://github.com/chenzongxiong/rococo
[INFO] tweaked toml for git repo https://github.com/chenzongxiong/rococo written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/chenzongxiong/rococo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--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 eyre v0.6.2
[INFO] [stderr]   Downloaded memory-db v0.24.0
[INFO] [stderr]   Downloaded async-tls v0.10.2
[INFO] [stderr]   Downloaded libp2p v0.32.1
[INFO] [stderr]   Downloaded libp2p-websocket v0.26.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e810327096ae45e90354a101c6d0d7ec461e6f864312fb02ad35c7df77a7f74
[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" "7e810327096ae45e90354a101c6d0d7ec461e6f864312fb02ad35c7df77a7f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e810327096ae45e90354a101c6d0d7ec461e6f864312fb02ad35c7df77a7f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e810327096ae45e90354a101c6d0d7ec461e6f864312fb02ad35c7df77a7f74", kill_on_drop: false }`
[INFO] [stdout] 7e810327096ae45e90354a101c6d0d7ec461e6f864312fb02ad35c7df77a7f74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbe56d575facc6adf345f0cebb46d4e346ec673b68bcbcec1fcc36dbcd35f7c1
[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" "cbe56d575facc6adf345f0cebb46d4e346ec673b68bcbcec1fcc36dbcd35f7c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
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[INFO] [stderr]    Compiling getrandom v0.1.14
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[INFO] [stderr]    Compiling version_check v0.9.2
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[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
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[INFO] [stderr]    Compiling serde_json v1.0.60
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[INFO] [stderr]    Compiling crunchy v0.2.2
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[INFO] [stderr]     Checking cpuid-bool v0.1.0
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[INFO] [stderr]    Compiling proc-macro2 v0.4.30
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[INFO] [stderr]     Checking rustc-serialize v0.3.24
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[INFO] [stderr]    Compiling sc-consensus-slots v0.8.0 (https://github.com/paritytech/substrate?branch=polkadot-release-v0.8.27#8c3b3fb1)
[INFO] [stderr]    Compiling winapi v0.3.9
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[INFO] [stderr]    Compiling dlmalloc v0.2.1
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[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
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[INFO] [stderr]    Compiling num-complex v0.2.4
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[INFO] [stderr]    Compiling nom v5.1.2
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[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking quicksink v0.1.2
[INFO] [stderr]    Compiling semver v0.9.0
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[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking owning_ref v0.4.1
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[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking linked_hash_set v0.1.3
[INFO] [stderr]    Compiling substrate-build-script-utils v2.0.0 (https://github.com/paritytech/substrate?branch=polkadot-release-v0.8.27#8c3b3fb1)
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking maybe-uninit v2.0.0
[INFO] [stderr]     Checking lru v0.6.1
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[INFO] [stderr]     Checking wat v1.0.22
[INFO] [stderr]    Compiling build-helper v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking memrange v0.1.3
[INFO] [stderr]     Checking regex-automata v0.1.9
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[INFO] [stderr]    Compiling parity-wasm v0.32.0
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[INFO] [stderr]     Checking blake2-rfc v0.2.18
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[INFO] [stderr]    Compiling polkadot-cli v0.8.27 (/opt/rustwide/workdir/cli)
[INFO] [stderr]    Compiling quote v1.0.7
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[INFO] [stderr]    Compiling pest_meta v2.1.3
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[INFO] [stderr]    Compiling parking_lot v0.9.0
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[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling zstd-sys v1.4.17+zstd.1.4.5
[INFO] [stderr]    Compiling wasmtime-runtime v0.19.0
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libloading v0.5.2
[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=0127dae723bfc76d -C extra-filename=-0127dae723bfc76d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7f3011246155a04e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-230b06e8c210baa3.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-4182131ee577b5da.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" "cbe56d575facc6adf345f0cebb46d4e346ec673b68bcbcec1fcc36dbcd35f7c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbe56d575facc6adf345f0cebb46d4e346ec673b68bcbcec1fcc36dbcd35f7c1", kill_on_drop: false }`
[INFO] [stdout] cbe56d575facc6adf345f0cebb46d4e346ec673b68bcbcec1fcc36dbcd35f7c1