[INFO] fetching crate cargo-contract 0.6.2...
[INFO] checking cargo-contract-0.6.2 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate cargo-contract 0.6.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cargo-contract 0.6.2 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-contract 0.6.2
[INFO] finished tweaking crates.io crate cargo-contract 0.6.2
[INFO] tweaked toml for crates.io crate cargo-contract 0.6.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate cargo-contract 0.6.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hash256-std-hasher v0.15.2
[INFO] [stderr]   Downloaded parity-util-mem-derive v0.1.0
[INFO] [stderr]   Downloaded protobuf v2.14.0
[INFO] [stderr]   Downloaded tiny-bip39 v0.7.3
[INFO] [stderr]   Downloaded ref-cast v1.0.1
[INFO] [stderr]   Downloaded bitmask v0.5.0
[INFO] [stderr]   Downloaded backtrace v0.3.47
[INFO] [stderr]   Downloaded primitive-types v0.7.2
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.1
[INFO] [stderr]   Downloaded paste-impl v0.1.12
[INFO] [stderr]   Downloaded memory-db v0.20.1
[INFO] [stderr]   Downloaded cargo-xbuild v0.6.0
[INFO] [stderr]   Downloaded jsonrpsee-proc-macros v0.1.0
[INFO] [stderr]   Downloaded parity-util-mem v0.6.1
[INFO] [stderr]   Downloaded jsonrpsee v0.1.0
[INFO] [stderr]   Downloaded hmac-drbg v0.2.0
[INFO] [stderr]   Downloaded base58 v0.1.0
[INFO] [stderr]   Downloaded libsecp256k1 v0.3.5
[INFO] [stderr]   Downloaded impl-serde v0.3.1
[INFO] [stderr]   Downloaded merlin v2.0.0
[INFO] [stderr]   Downloaded tracing v0.1.13
[INFO] [stderr]   Downloaded sp-application-crypto v2.0.0-alpha.7
[INFO] [stderr]   Downloaded prometheus v0.8.0
[INFO] [stderr]   Downloaded frame-support-procedural-tools-derive v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-rpc v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-version v2.0.0-alpha.7
[INFO] [stderr]   Downloaded substrate-bip39 v0.4.1
[INFO] [stderr]   Downloaded paste v0.1.12
[INFO] [stderr]   Downloaded sp-externalities v0.8.0-alpha.7
[INFO] [stderr]   Downloaded integer-sqrt v0.1.3
[INFO] [stderr]   Downloaded sp-runtime-interface v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-trie v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-storage v2.0.0-alpha.7
[INFO] [stderr]   Downloaded substrate-subxt v0.5.0
[INFO] [stderr]   Downloaded hash-db v0.15.2
[INFO] [stderr]   Downloaded sp-api v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-runtime-interface-proc-macro v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-keyring v2.0.0-alpha.7
[INFO] [stderr]   Downloaded ahash v0.3.4
[INFO] [stderr]   Downloaded sp-wasm-interface v2.0.0-alpha.7
[INFO] [stderr]   Downloaded frame-support-procedural v2.0.0-alpha.7
[INFO] [stderr]   Downloaded impl-trait-for-tuples v0.1.3
[INFO] [stderr]   Downloaded sp-api-proc-macro v2.0.0-alpha.7
[INFO] [stderr]   Downloaded trie-db v0.20.1
[INFO] [stderr]   Downloaded frame-support-procedural-tools v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-runtime v2.0.0-alpha.7
[INFO] [stderr]   Downloaded environmental v1.1.1
[INFO] [stderr]   Downloaded wabt v0.9.2
[INFO] [stderr]   Downloaded parity-scale-codec-derive v1.2.0
[INFO] [stderr]   Downloaded impl-serde v0.2.3
[INFO] [stderr]   Downloaded wabt-sys v0.7.1
[INFO] [stderr]   Downloaded soketto v0.3.2
[INFO] [stderr]   Downloaded sp-state-machine v0.8.0-alpha.7
[INFO] [stderr]   Downloaded tracing-attributes v0.1.7
[INFO] [stderr]   Downloaded trie-root v0.16.0
[INFO] [stderr]   Downloaded frame-system v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-tracing v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-debug-derive v2.0.0-alpha.7
[INFO] [stderr]   Downloaded frame-metadata v11.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-inherents v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-panic-handler v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-io v2.0.0-alpha.7
[INFO] [stderr]   Downloaded pallet-indices v2.0.0-alpha.7
[INFO] [stderr]   Downloaded frame-support v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-arithmetic v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-transaction-pool v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-std v2.0.0-alpha.7
[INFO] [stderr]   Downloaded schnorrkel v0.9.1
[INFO] [stderr]   Downloaded sp-core v2.0.0-alpha.7
[INFO] [stderr]   Downloaded sp-utils v2.0.0-alpha.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8f0cdb0d922963f54f68326fefccc948e01546bafc752cc34fb7182d58b5f31
[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" "e8f0cdb0d922963f54f68326fefccc948e01546bafc752cc34fb7182d58b5f31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8f0cdb0d922963f54f68326fefccc948e01546bafc752cc34fb7182d58b5f31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8f0cdb0d922963f54f68326fefccc948e01546bafc752cc34fb7182d58b5f31", kill_on_drop: false }`
[INFO] [stdout] e8f0cdb0d922963f54f68326fefccc948e01546bafc752cc34fb7182d58b5f31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9db71f8807f26449c2c81903f6ce1ad913182b8e22d3a53bc91a5a035009dcfa
[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" "9db71f8807f26449c2c81903f6ce1ad913182b8e22d3a53bc91a5a035009dcfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling syn v1.0.20
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking object v0.19.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling cargo-xbuild v0.6.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking assert_matches v1.3.0
[INFO] [stderr]     Checking addr2line v0.12.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking zip v0.5.5
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling cargo-contract v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling wabt-sys v0.7.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking pwasm-utils v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking backtrace v0.3.47
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking which v3.1.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking parity-scale-codec v1.3.0
[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-1.0.20/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=cd7ca68aa8dd680f -C extra-filename=-cd7ca68aa8dd680f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-e4314d92c343b02b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6e07dd1485c49be8.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-6181e2f2fb8255ce.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" "9db71f8807f26449c2c81903f6ce1ad913182b8e22d3a53bc91a5a035009dcfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db71f8807f26449c2c81903f6ce1ad913182b8e22d3a53bc91a5a035009dcfa", kill_on_drop: false }`
[INFO] [stdout] 9db71f8807f26449c2c81903f6ce1ad913182b8e22d3a53bc91a5a035009dcfa