[INFO] fetching crate structsy 0.2.0...
[INFO] testing structsy-0.2.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate structsy 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate structsy 0.2.0 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 structsy 0.2.0
[INFO] finished tweaking crates.io crate structsy 0.2.0
[INFO] tweaked toml for crates.io crate structsy 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate structsy 0.2.0 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-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" "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] 177c9043c2c10baf2b86e1824f24814c2d6209045634371a0be40fc65f31a754
[INFO] running `"docker" "start" "-a" "177c9043c2c10baf2b86e1824f24814c2d6209045634371a0be40fc65f31a754"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling unsigned-varint v0.3.2
[INFO] [stderr]    Compiling data-encoding v2.2.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling persy v0.9.0
[INFO] [stderr]    Compiling structsy v0.2.0 (/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-0.9.0/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=9be6b4db90980e98 -C extra-filename=-9be6b4db90980e98 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-78580fbf595daae7.rmeta --extern crc=/opt/rustwide/target/debug/deps/libcrc-28b8d347293ae474.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-9154cb59b7e77f50.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-e63c8a40812a55f5.rmeta --extern linked_hash_map=/opt/rustwide/target/debug/deps/liblinked_hash_map-7f0e530bd389a825.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-cbd345e53664e780.rmeta --extern unsigned_varint=/opt/rustwide/target/debug/deps/libunsigned_varint-ff6f40e21e0a6270.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "177c9043c2c10baf2b86e1824f24814c2d6209045634371a0be40fc65f31a754"`
[INFO] running `"docker" "rm" "-f" "177c9043c2c10baf2b86e1824f24814c2d6209045634371a0be40fc65f31a754"`
[INFO] [stdout] 177c9043c2c10baf2b86e1824f24814c2d6209045634371a0be40fc65f31a754