[INFO] fetching crate ratsio 0.3.0-alpha.4...
[INFO] testing ratsio-0.3.0-alpha.4 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate ratsio 0.3.0-alpha.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ratsio 0.3.0-alpha.4 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ratsio 0.3.0-alpha.4
[INFO] finished tweaking crates.io crate ratsio 0.3.0-alpha.4
[INFO] tweaked toml for crates.io crate ratsio 0.3.0-alpha.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate ratsio 0.3.0-alpha.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bdd2e1cbeb7d3958d3fcf66dc88beff51952681c77478bf95c7b6928bed40c2a
[INFO] running `Command { std: "docker" "start" "-a" "bdd2e1cbeb7d3958d3fcf66dc88beff51952681c77478bf95c7b6928bed40c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdd2e1cbeb7d3958d3fcf66dc88beff51952681c77478bf95c7b6928bed40c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdd2e1cbeb7d3958d3fcf66dc88beff51952681c77478bf95c7b6928bed40c2a", kill_on_drop: false }`
[INFO] [stdout] bdd2e1cbeb7d3958d3fcf66dc88beff51952681c77478bf95c7b6928bed40c2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e96b9268dbc5c001f10e3e0050df7be3331417b0f9bde4e6931f80481141adda
[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" "e96b9268dbc5c001f10e3e0050df7be3331417b0f9bde4e6931f80481141adda", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling futures-io v0.3.1
[INFO] [stderr]    Compiling regex-syntax v0.6.13
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling pin-project-lite v0.1.2
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling atomic-counter v1.0.1
[INFO] [stderr]    Compiling futures-timer v2.0.2
[INFO] [stderr]    Compiling data-encoding v2.2.1
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]    Compiling futures-channel v0.3.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling block-buffer v0.8.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling sha2 v0.9.0
[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 backtrace v0.3.40
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling regex v1.3.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[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 prost v0.6.0
[INFO] [stderr]    Compiling prost-types v0.6.0
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling futures-executor v0.3.1
[INFO] [stderr]    Compiling futures v0.3.1
[INFO] [stderr]    Compiling ratsio v0.3.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 36s
[INFO] running `Command { std: "docker" "inspect" "e96b9268dbc5c001f10e3e0050df7be3331417b0f9bde4e6931f80481141adda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e96b9268dbc5c001f10e3e0050df7be3331417b0f9bde4e6931f80481141adda", kill_on_drop: false }`
[INFO] [stdout] e96b9268dbc5c001f10e3e0050df7be3331417b0f9bde4e6931f80481141adda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 31c502a9b4beefa703334a79139d3fcd8ae32d1844a8b2f76c7f22f3c9910292
[INFO] running `Command { std: "docker" "start" "-a" "31c502a9b4beefa703334a79139d3fcd8ae32d1844a8b2f76c7f22f3c9910292", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling ctrlc v3.1.4
[INFO] [stderr]    Compiling ratsio v0.3.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ratsio::nats_client::UriVec`
[INFO] [stdout]  --> examples/nats_publish.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ratsio::nats_client::UriVec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ratsio`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nats_sub_user --edition=2018 examples/nats_sub_user.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="native-tls"' --cfg 'feature="tls"' --cfg 'feature="tokio-tls"' -C metadata=c59c7a3a285956d7 -C extra-filename=-c59c7a3a285956d7 --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern atomic_counter=/opt/rustwide/target/debug/deps/libatomic_counter-feb5a3975b6b3773.rlib --extern bytes=/opt/rustwide/target/debug/deps/libbytes-e51bf9657a7698ac.rlib --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-b00c34326580381c.rlib --extern ctrlc=/opt/rustwide/target/debug/deps/libctrlc-81a01e1f5c7e68f2.rlib --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-bb90f7b76caab977.rlib --extern derive_builder=/opt/rustwide/target/debug/deps/libderive_builder-0615d869383696ba.so --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-97498107c06674a6.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-ba88bd14ea1902d9.rlib --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-e25021c481804010.so --extern futures=/opt/rustwide/target/debug/deps/libfutures-ac5510064c6af7f5.rlib --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-64224e70b852a35e.rlib --extern futures_timer=/opt/rustwide/target/debug/deps/libfutures_timer-97783ea8a7058a1c.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7c0477ae3415ac1f.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-2c5a3e6f05aa3f12.rlib --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-e97c01b4ae6db2c4.rlib --extern nom=/opt/rustwide/target/debug/deps/libnom-2f8aa39efaa09598.rlib --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-61d00dc3813c99d3.rlib --extern prost=/opt/rustwide/target/debug/deps/libprost-81a31d2d40431da8.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-a1b5b3034bf866b2.rlib --extern ratsio=/opt/rustwide/target/debug/deps/libratsio-4f7dacb95ea02101.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-e987010c2e6163d9.rlib --extern sha2=/opt/rustwide/target/debug/deps/libsha2-31107164784d8317.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-13376cd24718267a.rlib --extern tokio_tls=/opt/rustwide/target/debug/deps/libtokio_tls-06c8c76516ef4a8a.rlib --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-f4964ee25355a73d.rlib --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/backtrace-sys-71b68ceb70236fb6/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "31c502a9b4beefa703334a79139d3fcd8ae32d1844a8b2f76c7f22f3c9910292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c502a9b4beefa703334a79139d3fcd8ae32d1844a8b2f76c7f22f3c9910292", kill_on_drop: false }`
[INFO] [stdout] 31c502a9b4beefa703334a79139d3fcd8ae32d1844a8b2f76c7f22f3c9910292