[INFO] cloning repository https://github.com/pkgw/rubbl-rxpackage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pkgw/rubbl-rxpackage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkgw%2Frubbl-rxpackage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkgw%2Frubbl-rxpackage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e52f1b43c301bd1bae5f31f96cf174d85eeb375
[INFO] checking pkgw/rubbl-rxpackage against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkgw%2Frubbl-rxpackage" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pkgw/rubbl-rxpackage on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pkgw/rubbl-rxpackage
[INFO] finished tweaking git repo https://github.com/pkgw/rubbl-rxpackage
[INFO] tweaked toml for git repo https://github.com/pkgw/rubbl-rxpackage written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/pkgw/rubbl-rxpackage already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11aa6378b5ffed74ab270aacc94af51562dbb61f1f304632c4590c8feb0b2b4a
[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" "11aa6378b5ffed74ab270aacc94af51562dbb61f1f304632c4590c8feb0b2b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11aa6378b5ffed74ab270aacc94af51562dbb61f1f304632c4590c8feb0b2b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11aa6378b5ffed74ab270aacc94af51562dbb61f1f304632c4590c8feb0b2b4a", kill_on_drop: false }`
[INFO] [stdout] 11aa6378b5ffed74ab270aacc94af51562dbb61f1f304632c4590c8feb0b2b4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c3d0f796dafc6063045a7ba60d45875a5e3513564c57f9b804571c287989d97
[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" "0c3d0f796dafc6063045a7ba60d45875a5e3513564c57f9b804571c287989d97", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling rubbl_casatables_impl v0.2.31100
[INFO] [stderr]    Compiling rubbl_casatables v0.1.4
[INFO] [stderr]     Checking pbr v1.0.3
[INFO] [stderr]     Checking ndarray v0.12.1
[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-1.0.39/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=ef7d31beadd7f408 -C extra-filename=-ef7d31beadd7f408 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b96d4b210ce3c8db.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0ad0d80123caeb4a.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b888af50774a486c.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_disable_nightly_tests` (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] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0c3d0f796dafc6063045a7ba60d45875a5e3513564c57f9b804571c287989d97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c3d0f796dafc6063045a7ba60d45875a5e3513564c57f9b804571c287989d97", kill_on_drop: false }`
[INFO] [stdout] 0c3d0f796dafc6063045a7ba60d45875a5e3513564c57f9b804571c287989d97