[INFO] fetching crate sentencepiece 0.6.0...
[INFO] checking sentencepiece-0.6.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate sentencepiece 0.6.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate sentencepiece 0.6.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sentencepiece 0.6.0
[INFO] finished tweaking crates.io crate sentencepiece 0.6.0
[INFO] tweaked toml for crates.io crate sentencepiece 0.6.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sentencepiece-sys v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8efff555db5b44613ff121cb7772a31fd1fbd330a8f24d34e229f4ff5b3c37ca
[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" "8efff555db5b44613ff121cb7772a31fd1fbd330a8f24d34e229f4ff5b3c37ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8efff555db5b44613ff121cb7772a31fd1fbd330a8f24d34e229f4ff5b3c37ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8efff555db5b44613ff121cb7772a31fd1fbd330a8f24d34e229f4ff5b3c37ca", kill_on_drop: false }`
[INFO] [stdout] 8efff555db5b44613ff121cb7772a31fd1fbd330a8f24d34e229f4ff5b3c37ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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] 5d550cf7e1e8755f40b10276562c7ff3180197f8f0e5c6c930e57102d041fbed
[INFO] running `Command { std: "docker" "start" "-a" "5d550cf7e1e8755f40b10276562c7ff3180197f8f0e5c6c930e57102d041fbed", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling sentencepiece-sys v0.6.0
[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-1.0.60/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="extra-traits"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=c218ff9a5736dd9f -C extra-filename=-c218ff9a5736dd9f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-bb4ba7198c8ab084.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5a69b9c9858fa556.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-f8f43d60e7e7de10.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" "5d550cf7e1e8755f40b10276562c7ff3180197f8f0e5c6c930e57102d041fbed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d550cf7e1e8755f40b10276562c7ff3180197f8f0e5c6c930e57102d041fbed", kill_on_drop: false }`
[INFO] [stdout] 5d550cf7e1e8755f40b10276562c7ff3180197f8f0e5c6c930e57102d041fbed