[INFO] cloning repository https://github.com/paritytech/cargo-contract
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paritytech/cargo-contract" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fcargo-contract", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fcargo-contract'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfc389db2370be7661d5d2b17596ca7b71bca2bc
[INFO] checking paritytech/cargo-contract against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fcargo-contract" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paritytech/cargo-contract on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paritytech/cargo-contract
[INFO] finished tweaking git repo https://github.com/paritytech/cargo-contract
[INFO] tweaked toml for git repo https://github.com/paritytech/cargo-contract written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/paritytech/cargo-contract already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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 ahash v0.3.4
[INFO] [stderr]   Downloaded paste-impl v0.1.12
[INFO] [stderr]   Downloaded ed25519-dalek v1.0.0-pre.4
[INFO] [stderr]   Downloaded libp2p v0.22.0
[INFO] [stderr]   Downloaded ctor v0.1.15
[INFO] [stderr]   Downloaded paste v0.1.12
[INFO] [stderr]   Downloaded multihash v0.11.2
[INFO] [stderr]   Downloaded blake2 v0.9.0
[INFO] [stderr]   Downloaded cargo_metadata v0.9.1
[INFO] [stderr]   Downloaded which v4.0.2
[INFO] [stderr]   Downloaded libp2p-core v0.20.1
[INFO] [stderr]   Downloaded libp2p-swarm v0.20.1
[INFO] [stderr]   Downloaded kv-log-macro v1.0.5
[INFO] [stderr]   Downloaded protobuf v2.14.0
[INFO] [stderr]   Downloaded prometheus v0.8.0
[INFO] [stderr]   Downloaded backtrace v0.3.47
[INFO] [stderr]   Downloaded jsonrpc-client-transports v14.2.0
[INFO] [stderr]   Downloaded unsigned-varint v0.3.3
[INFO] [stderr]   Downloaded concurrent-queue v1.1.2
[INFO] [stderr]   Downloaded sp-application-crypto v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-tracing v2.0.0-rc5
[INFO] [stderr]   Downloaded substrate-subxt-proc-macro v0.11.0
[INFO] [stderr]   Downloaded sp-storage v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-keyring v2.0.0-rc5
[INFO] [stderr]   Downloaded pallet-indices v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-api v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-panic-handler v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-trie v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-block-builder v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-io v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-blockchain v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-utils v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-transaction-pool v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-chain-spec v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-rpc v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-wasm-interface v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-runtime-interface-proc-macro v2.0.0-rc5
[INFO] [stderr]   Downloaded frame-metadata v11.0.0-rc5
[INFO] [stderr]   Downloaded frame-support-procedural-tools v2.0.0-rc5
[INFO] [stderr]   Downloaded frame-support-procedural-tools-derive v2.0.0-rc5
[INFO] [stderr]   Downloaded sc-rpc-api v0.8.0-rc5
[INFO] [stderr]   Downloaded sp-inherents v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-debug-derive v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-std v2.0.0-rc5
[INFO] [stderr]   Downloaded substrate-prometheus-endpoint v0.8.0-rc5
[INFO] [stderr]   Downloaded sp-runtime-interface v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-version v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-database v2.0.0-rc5
[INFO] [stderr]   Downloaded wabt v0.10.0
[INFO] [stderr]   Downloaded sp-externalities v0.8.0-rc5
[INFO] [stderr]   Downloaded sp-consensus v0.8.0-rc5
[INFO] [stderr]   Downloaded cargo-xbuild v0.6.0
[INFO] [stderr]   Downloaded sp-api-proc-macro v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-arithmetic v2.0.0-rc5
[INFO] [stderr]   Downloaded frame-system v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-core v2.0.0-rc5
[INFO] [stderr]   Downloaded pwasm-utils v0.14.0
[INFO] [stderr]   Downloaded sp-runtime v2.0.0-rc5
[INFO] [stderr]   Downloaded frame-support-procedural v2.0.0-rc5
[INFO] [stderr]   Downloaded sp-state-machine v0.8.0-rc5
[INFO] [stderr]   Downloaded frame-support v2.0.0-rc5
[INFO] [stderr]   Downloaded substrate-subxt v0.11.0
[INFO] [stderr]   Downloaded wabt-sys v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d7a2abacd5ce4621af9789e043fdf2b82cfc3396228d032e6608066d7e6c2a4
[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" "0d7a2abacd5ce4621af9789e043fdf2b82cfc3396228d032e6608066d7e6c2a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d7a2abacd5ce4621af9789e043fdf2b82cfc3396228d032e6608066d7e6c2a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d7a2abacd5ce4621af9789e043fdf2b82cfc3396228d032e6608066d7e6c2a4", kill_on_drop: false }`
[INFO] [stdout] 0d7a2abacd5ce4621af9789e043fdf2b82cfc3396228d032e6608066d7e6c2a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5602203bdc6058ca4adfa36e72eeb98137c521baca1e1d6401145c3f382359a
[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" "c5602203bdc6058ca4adfa36e72eeb98137c521baca1e1d6401145c3f382359a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]    Compiling cargo-xbuild v0.6.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]     Checking assert_matches v1.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking zip v0.5.6
[INFO] [stderr]    Compiling wabt-sys v0.8.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking blake2 v0.9.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling cargo-contract v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking pwasm-utils v0.14.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tempfile v3.1.0
[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-1.0.36/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -Cembed-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=3fbb4162decc964b -C extra-filename=-3fbb4162decc964b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-173455b1080c9f0f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-679912bfeee379b9.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" "c5602203bdc6058ca4adfa36e72eeb98137c521baca1e1d6401145c3f382359a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5602203bdc6058ca4adfa36e72eeb98137c521baca1e1d6401145c3f382359a", kill_on_drop: false }`
[INFO] [stdout] c5602203bdc6058ca4adfa36e72eeb98137c521baca1e1d6401145c3f382359a