[INFO] fetching crate pwasm-utils 0.16.0...
[INFO] checking pwasm-utils-0.16.0 against try#1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73 for pr-78461
[INFO] extracting crate pwasm-utils 0.16.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pwasm-utils 0.16.0 on toolchain 1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pwasm-utils 0.16.0
[INFO] finished tweaking crates.io crate pwasm-utils 0.16.0
[INFO] tweaked toml for crates.io crate pwasm-utils 0.16.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate pwasm-utils 0.16.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unindent v0.1.6
[INFO] [stderr]   Downloaded syn v1.0.34
[INFO] [stderr]   Downloaded wabt-sys v0.8.0
[INFO] [stderr]   Downloaded binaryen-sys v0.8.2
[INFO] [stderr]   Downloaded binaryen v0.8.2
[INFO] [stderr]   Downloaded wabt v0.10.0
[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" "+1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d55ba52fbda5ae3415af0926722072a35f3e4c4c3173321581be8d0b68f48f53
[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" "d55ba52fbda5ae3415af0926722072a35f3e4c4c3173321581be8d0b68f48f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d55ba52fbda5ae3415af0926722072a35f3e4c4c3173321581be8d0b68f48f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d55ba52fbda5ae3415af0926722072a35f3e4c4c3173321581be8d0b68f48f53", kill_on_drop: false }`
[INFO] [stdout] d55ba52fbda5ae3415af0926722072a35f3e4c4c3173321581be8d0b68f48f53
[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" "+1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b94e5a9f313402b753d843cdbaae97e7f356cb9ff33bed40fd16ce18afba2c8
[INFO] running `Command { std: "docker" "start" "-a" "2b94e5a9f313402b753d843cdbaae97e7f356cb9ff33bed40fd16ce18afba2c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling unindent v0.1.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling wabt-sys v0.8.0
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]     Checking pwasm-utils v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling env_logger v0.7.1
[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-1.0.34/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=68aac95a83692888 -C extra-filename=-68aac95a83692888 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6ca644c400011813.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-21d96aae44871e50.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-083414e3434d8e82.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" "2b94e5a9f313402b753d843cdbaae97e7f356cb9ff33bed40fd16ce18afba2c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b94e5a9f313402b753d843cdbaae97e7f356cb9ff33bed40fd16ce18afba2c8", kill_on_drop: false }`
[INFO] [stdout] 2b94e5a9f313402b753d843cdbaae97e7f356cb9ff33bed40fd16ce18afba2c8