[INFO] crate salsa 0.14.1 is already in cache
[INFO] testing salsa-0.14.1 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate salsa 0.14.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate salsa 0.14.1 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate salsa 0.14.1
[INFO] finished tweaking crates.io crate salsa 0.14.1
[INFO] tweaked toml for crates.io crate salsa 0.14.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate salsa 0.14.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6456468bbe44f0ac25ce6281014d7d9bae2dd88107d24fe72998a783a1506b1c
[INFO] running `"docker" "start" "-a" "6456468bbe44f0ac25ce6281014d7d9bae2dd88107d24fe72998a783a1506b1c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling crossbeam v0.7.2
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling salsa-macros v0.14.1
[INFO] [stderr]    Compiling salsa v0.14.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.72s
[INFO] running `"docker" "inspect" "6456468bbe44f0ac25ce6281014d7d9bae2dd88107d24fe72998a783a1506b1c"`
[INFO] running `"docker" "rm" "-f" "6456468bbe44f0ac25ce6281014d7d9bae2dd88107d24fe72998a783a1506b1c"`
[INFO] [stdout] 6456468bbe44f0ac25ce6281014d7d9bae2dd88107d24fe72998a783a1506b1c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2076d0bbb758891bf818d9c3ba88194f117c320364b64a6a0e258223beb9e50d
[INFO] running `"docker" "start" "-a" "2076d0bbb758891bf818d9c3ba88194f117c320364b64a6a0e258223beb9e50d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling salsa v0.14.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `salsa`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name compiler --edition=2018 examples/compiler/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=212590de087f2b9a -C extra-filename=-212590de087f2b9a --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-59b269ab0e861138.rlib --extern diff=/opt/rustwide/target/debug/deps/libdiff-6a1e3d7b4dc99eb6.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-29405e2ee456f71d.rlib --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-a9edf09a55f6486d.rlib --extern linked_hash_map=/opt/rustwide/target/debug/deps/liblinked_hash_map-7f0e530bd389a825.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-3d65ebee37a7b6c8.rlib --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-841ea0618618ada0.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-35319b0e370e6fa9.rlib --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-08c6c7410ee63daa.rlib --extern rustc_hash=/opt/rustwide/target/debug/deps/librustc_hash-b93455ff4a9e0883.rlib --extern salsa=/opt/rustwide/target/debug/deps/libsalsa-75913a7da4db6039.rlib --extern salsa_macros=/opt/rustwide/target/debug/deps/libsalsa_macros-dd2c2ecfdea9d1e0.so --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-543650f9f3edc76a.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2076d0bbb758891bf818d9c3ba88194f117c320364b64a6a0e258223beb9e50d"`
[INFO] running `"docker" "rm" "-f" "2076d0bbb758891bf818d9c3ba88194f117c320364b64a6a0e258223beb9e50d"`
[INFO] [stdout] 2076d0bbb758891bf818d9c3ba88194f117c320364b64a6a0e258223beb9e50d