[INFO] crate perkv 0.0.2 is already in cache
[INFO] testing perkv-0.0.2 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate perkv 0.0.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate perkv 0.0.2 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 perkv 0.0.2
[INFO] finished tweaking crates.io crate perkv 0.0.2
[INFO] tweaked toml for crates.io crate perkv 0.0.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate perkv 0.0.2 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-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" "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] [stdout] 6731f8ad5ffe44e85762228f07fec5366f681976af1fffc7a1e345654000dacf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "6731f8ad5ffe44e85762228f07fec5366f681976af1fffc7a1e345654000dacf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling delegate v0.3.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling persy v0.7.0
[INFO] [stderr]    Compiling persawkv v0.0.0-alpha.1
[INFO] [stderr]    Compiling perkv v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `persy`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name persy --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/persy-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=f77878e1c59f3ce1 -C extra-filename=-f77878e1c59f3ce1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-f8593b3755ad6d95.rmeta --extern crc=/opt/rustwide/target/debug/deps/libcrc-28b8d347293ae474.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-cf90066c65688016.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-119e4288c1db1300.rmeta --extern linked_hash_map=/opt/rustwide/target/debug/deps/liblinked_hash_map-7f0e530bd389a825.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-784bd79a2278d871.rmeta --extern unsigned_varint=/opt/rustwide/target/debug/deps/libunsigned_varint-d38313ea82a46272.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "6731f8ad5ffe44e85762228f07fec5366f681976af1fffc7a1e345654000dacf"`
[INFO] running `"docker" "rm" "-f" "6731f8ad5ffe44e85762228f07fec5366f681976af1fffc7a1e345654000dacf"`
[INFO] [stdout] 6731f8ad5ffe44e85762228f07fec5366f681976af1fffc7a1e345654000dacf