[INFO] fetching crate sc-client 0.8.0-alpha.6...
[INFO] building sc-client-0.8.0-alpha.6 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate sc-client 0.8.0-alpha.6 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate sc-client 0.8.0-alpha.6
[INFO] finished tweaking crates.io crate sc-client 0.8.0-alpha.6
[INFO] tweaked toml for crates.io crate sc-client 0.8.0-alpha.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sc-client 0.8.0-alpha.6 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 457 packages to latest compatible versions
[INFO] [stderr]       Adding curve25519-dalek v3.2.0 (available: v3.2.1)
[INFO] [stderr]       Adding derive_more v0.99.20 (available: v2.0.1)
[INFO] [stderr]       Adding hash-db v0.15.2 (available: v0.16.0)
[INFO] [stderr]       Adding hex-literal v0.2.2 (available: v1.0.0)
[INFO] [stderr]       Adding kvdb v0.5.0 (available: v0.13.0)
[INFO] [stderr]       Adding memory-db v0.21.0 (available: v0.21.2)
[INFO] [stderr]       Adding parity-scale-codec v1.3.7 (available: v3.7.5)
[INFO] [stderr]       Adding parking_lot v0.10.2 (available: v0.12.4)
[INFO] [stderr]       Adding sc-block-builder v0.8.0-rc4 (available: v0.8.1)
[INFO] [stderr]       Adding sc-client-api v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sc-executor v0.8.0-rc4 (available: v0.8.1)
[INFO] [stderr]       Adding sc-executor-common v0.8.0-rc4 (available: v0.8.1)
[INFO] [stderr]       Adding sc-executor-wasmi v0.8.0-rc4 (available: v0.8.1)
[INFO] [stderr]       Adding sc-telemetry v2.0.1 (available: v30.0.0)
[INFO] [stderr]       Adding sp-allocator v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-api v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-application-crypto v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-block-builder v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-blockchain v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-consensus v0.8.0-rc4 (available: v0.8.1)
[INFO] [stderr]       Adding sp-core v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-database v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-externalities v0.8.1 (available: v0.30.0)
[INFO] [stderr]       Adding sp-inherents v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-io v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-keyring v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-runtime v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-state-machine v0.8.0-rc4 (available: v0.8.1)
[INFO] [stderr]       Adding sp-std v2.0.1 (available: v14.0.0)
[INFO] [stderr]       Adding sp-transaction-pool v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-trie v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding sp-utils v2.0.1 (available: v3.0.0)
[INFO] [stderr]       Adding sp-version v2.0.0-rc4 (available: v2.0.1)
[INFO] [stderr]       Adding substrate-prometheus-endpoint v0.8.1 (available: v0.17.7)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d23156e4c175933046204710b3b02e38e579bebd7aa3e131ce8c27bd7440c90c
[INFO] running `Command { std: "docker" "start" "-a" "d23156e4c175933046204710b3b02e38e579bebd7aa3e131ce8c27bd7440c90c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d23156e4c175933046204710b3b02e38e579bebd7aa3e131ce8c27bd7440c90c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d23156e4c175933046204710b3b02e38e579bebd7aa3e131ce8c27bd7440c90c", kill_on_drop: false }`
[INFO] [stdout] d23156e4c175933046204710b3b02e38e579bebd7aa3e131ce8c27bd7440c90c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc28faf7e913a49271c335dccc2d1d02f8ead69060536dd8b266c9a2cfb48381
[INFO] running `Command { std: "docker" "start" "-a" "dc28faf7e913a49271c335dccc2d1d02f8ead69060536dd8b266c9a2cfb48381", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling value-bag v1.11.1
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling signature v1.6.4
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling hmac-drbg v0.2.0
[INFO] [stderr]    Compiling ed25519 v1.5.3
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling bitvec v0.17.4
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling uint v0.8.5
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling sp-std v2.0.1
[INFO] [stderr]    Compiling parity-util-mem v0.6.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling parity-wasm v0.41.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --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"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=cce184e0b460d400 -C extra-filename=-a609dbea4b83b6ae --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7a2436df3ae454d4.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c24a9b7c8ebcb8f9.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6ac3b87590d2322c.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "dc28faf7e913a49271c335dccc2d1d02f8ead69060536dd8b266c9a2cfb48381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc28faf7e913a49271c335dccc2d1d02f8ead69060536dd8b266c9a2cfb48381", kill_on_drop: false }`
[INFO] [stdout] dc28faf7e913a49271c335dccc2d1d02f8ead69060536dd8b266c9a2cfb48381