[INFO] fetching crate rubbl_casatables 0.1.5...
[INFO] checking rubbl_casatables-0.1.5 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate rubbl_casatables 0.1.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rubbl_casatables 0.1.5 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rubbl_casatables 0.1.5
[INFO] finished tweaking crates.io crate rubbl_casatables 0.1.5
[INFO] tweaked toml for crates.io crate rubbl_casatables 0.1.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rubbl_casatables 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5db09c19d3b1625a8decebbc6fe8c16225993d25d3adcd1a1d160d0d45db3596
[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" "5db09c19d3b1625a8decebbc6fe8c16225993d25d3adcd1a1d160d0d45db3596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5db09c19d3b1625a8decebbc6fe8c16225993d25d3adcd1a1d160d0d45db3596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db09c19d3b1625a8decebbc6fe8c16225993d25d3adcd1a1d160d0d45db3596", kill_on_drop: false }`
[INFO] [stdout] 5db09c19d3b1625a8decebbc6fe8c16225993d25d3adcd1a1d160d0d45db3596
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] 2d2753d570792012dfddcfa41e1acc490904dc753910f8ee8335bfcd5db7a4bb
[INFO] running `Command { std: "docker" "start" "-a" "2d2753d570792012dfddcfa41e1acc490904dc753910f8ee8335bfcd5db7a4bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking pbr v1.0.3
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]    Compiling rubbl_casatables_impl v0.2.31101
[INFO] [stderr]    Compiling rubbl_casatables v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling synstructure v0.12.4
[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-1.0.42/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="extra-traits"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=b4e0485822081718 -C extra-filename=-b4e0485822081718 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a4ac03b796f86485.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-4bb93b42cd1433ee.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] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] warning: c++: fatal error: Killed signal terminated program cc1plus
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2d2753d570792012dfddcfa41e1acc490904dc753910f8ee8335bfcd5db7a4bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d2753d570792012dfddcfa41e1acc490904dc753910f8ee8335bfcd5db7a4bb", kill_on_drop: false }`
[INFO] [stdout] 2d2753d570792012dfddcfa41e1acc490904dc753910f8ee8335bfcd5db7a4bb