[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/paritytech/cargo-contract
[INFO] [stderr]    37d3929..d28a743  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d28a743b32a77d2ab3ddb463d101e1fe91344b15
[INFO] checking paritytech/cargo-contract against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[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 c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "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" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e091d04cf66dccf2e44c0dd0295a380911c8917148d15a30db97385d92813b9
[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" "6e091d04cf66dccf2e44c0dd0295a380911c8917148d15a30db97385d92813b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e091d04cf66dccf2e44c0dd0295a380911c8917148d15a30db97385d92813b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e091d04cf66dccf2e44c0dd0295a380911c8917148d15a30db97385d92813b9", kill_on_drop: false }`
[INFO] [stdout] 6e091d04cf66dccf2e44c0dd0295a380911c8917148d15a30db97385d92813b9
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e43424dfa27db6a3db9b34b33a6e4ab9b2b838531949fb65a203b17afea75c0c
[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" "e43424dfa27db6a3db9b34b33a6e4ab9b2b838531949fb65a203b17afea75c0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling cargo-xbuild v0.5.32
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking assert_matches v1.3.0
[INFO] [stderr]     Checking addr2line v0.12.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking backtrace v0.3.47
[INFO] [stderr]    Compiling zip v0.5.5
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling generic-array v0.14.2
[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]    Compiling quote v1.0.7
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking which v3.1.1
[INFO] [stderr]    Compiling cargo-contract v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking pwasm-utils v0.12.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling wabt-sys v0.7.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking blake2 v0.9.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[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-1.0.33/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=6999f7bf70dd2706 -C extra-filename=-6999f7bf70dd2706 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7c965ead78ab2632.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-16b254599656bad9.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1873a0aa8e338f62.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" "e43424dfa27db6a3db9b34b33a6e4ab9b2b838531949fb65a203b17afea75c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e43424dfa27db6a3db9b34b33a6e4ab9b2b838531949fb65a203b17afea75c0c", kill_on_drop: false }`
[INFO] [stdout] e43424dfa27db6a3db9b34b33a6e4ab9b2b838531949fb65a203b17afea75c0c