[INFO] crate ratsio 0.3.0-alpha.1 is already in cache
[INFO] testing ratsio-0.3.0-alpha.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate ratsio 0.3.0-alpha.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ratsio 0.3.0-alpha.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ratsio 0.3.0-alpha.1
[INFO] finished tweaking crates.io crate ratsio 0.3.0-alpha.1
[INFO] tweaked toml for crates.io crate ratsio 0.3.0-alpha.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate ratsio 0.3.0-alpha.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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" "+1.44.0" "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] 7f81541cf706f04d073e518e268cec805fedcf1e5b395fa0631ba1505ea065e1
[INFO] running `"docker" "start" "-a" "7f81541cf706f04d073e518e268cec805fedcf1e5b395fa0631ba1505ea065e1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling zeroize v1.1.0
[INFO] [stderr]    Compiling futures-sink v0.3.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling subtle v2.2.2
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.13
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling futures-io v0.3.1
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling pin-project-lite v0.1.2
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling data-encoding v2.1.2
[INFO] [stderr]    Compiling atomic-counter v1.0.1
[INFO] [stderr]    Compiling futures-timer v2.0.2
[INFO] [stderr]    Compiling futures-channel v0.3.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling subtle-encoding v0.4.1
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling signature v1.0.0-pre.1
[INFO] [stderr]    Compiling curve25519-dalek v2.0.0
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling ed25519 v1.0.0-pre.1
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling signatory v0.16.0
[INFO] [stderr]    Compiling regex v1.3.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]    Compiling signatory-dalek v0.16.0
[INFO] [stderr]    Compiling nkeys v0.0.8
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling prost-derive v0.6.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling tokio v0.2.9
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling prost-build v0.6.0
[INFO] [stderr]    Compiling pin-project v0.4.6
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling prost v0.6.0
[INFO] [stderr]    Compiling prost-types v0.6.0
[INFO] [stderr]    Compiling futures-executor v0.3.1
[INFO] [stderr]    Compiling futures v0.3.1
[INFO] [stderr]    Compiling ratsio v0.3.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 33s
[INFO] running `"docker" "inspect" "7f81541cf706f04d073e518e268cec805fedcf1e5b395fa0631ba1505ea065e1"`
[INFO] running `"docker" "rm" "-f" "7f81541cf706f04d073e518e268cec805fedcf1e5b395fa0631ba1505ea065e1"`
[INFO] [stdout] 7f81541cf706f04d073e518e268cec805fedcf1e5b395fa0631ba1505ea065e1
[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" "+1.44.0" "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] 5a92c423c771575532621eb4837f364f56bcea52af128f1da6f4a51db5e5a1b1
[INFO] running `"docker" "start" "-a" "5a92c423c771575532621eb4837f364f56bcea52af128f1da6f4a51db5e5a1b1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling ratsio v0.3.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `prost::Message`
[INFO] [stderr]  --> tests/nats_client_test.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use prost::Message;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `discover_subject`
[INFO] [stderr]   --> tests/nats_client_test.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let discover_subject = "_STAN.discover.test-cluster";
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_discover_subject`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `connect_request`
[INFO] [stderr]   --> tests/nats_client_test.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let connect_request = protocol::ConnectRequest {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connect_request`
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `ratsio`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name ratsio --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="native-tls"' --cfg 'feature="tls"' --cfg 'feature="tokio-tls"' -C metadata=3adbef053b0ee39e -C extra-filename=-3adbef053b0ee39e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atomic_counter=/opt/rustwide/target/debug/deps/libatomic_counter-fe4a80d08873a061.rlib --extern bytes=/opt/rustwide/target/debug/deps/libbytes-d1673187469956ae.rlib --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-c207894dabf2ad2d.rlib --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-4e5c844d71382048.rlib --extern derive_builder=/opt/rustwide/target/debug/deps/libderive_builder-5d8ad1f3a76d1f98.so --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-760ac80e414f15e6.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-42ac47a52cc96360.rlib --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-e1c9ff6afb2f1f0a.so --extern futures=/opt/rustwide/target/debug/deps/libfutures-a49ae9126f6958b8.rlib --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-0ab578a0111accd9.rlib --extern futures_timer=/opt/rustwide/target/debug/deps/libfutures_timer-ee3a10e8fb4e5d32.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-807f2c476a0e6b86.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-7d3993e8061c37ae.rlib --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-7b3fd322233a9b39.rlib --extern nkeys=/opt/rustwide/target/debug/deps/libnkeys-a4bd0242a4c9be61.rlib --extern nom=/opt/rustwide/target/debug/deps/libnom-476fca75508037db.rlib --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-fca7452eaaf61f80.rlib --extern prost=/opt/rustwide/target/debug/deps/libprost-f44fc2cb8eb22040.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-ab62b156dd052253.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-0afd51b46d20ff47.rlib --extern sha2=/opt/rustwide/target/debug/deps/libsha2-300a39483c550cbb.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-efd91243de6927fb.rlib --extern tokio_tls=/opt/rustwide/target/debug/deps/libtokio_tls-2625d77d928d1674.rlib --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-87d4380fa532fbac.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/backtrace-sys-2f1ca0484b82bb2e/out -L native=/opt/rustwide/target/debug/build/clear_on_drop-3bd38b4616bb7521/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5a92c423c771575532621eb4837f364f56bcea52af128f1da6f4a51db5e5a1b1"`
[INFO] running `"docker" "rm" "-f" "5a92c423c771575532621eb4837f364f56bcea52af128f1da6f4a51db5e5a1b1"`
[INFO] [stdout] 5a92c423c771575532621eb4837f364f56bcea52af128f1da6f4a51db5e5a1b1