[INFO] crate ratsio 0.3.0-alpha.1 is already in cache
[INFO] checking ratsio-0.3.0-alpha.1 against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] extracting crate ratsio 0.3.0-alpha.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ratsio 0.3.0-alpha.1 on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "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-4/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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "/opt/rustwide/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dcedf5bc86e0e790f3586cf4415039504416d1e74282ccecde7e13c54d787b46
[INFO] running `"docker" "start" "-a" "dcedf5bc86e0e790f3586cf4415039504416d1e74282ccecde7e13c54d787b46"`
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking atomic-counter v1.0.1
[INFO] [stderr]     Checking subtle-encoding v0.4.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling prost-derive v0.6.0
[INFO] [stderr]    Compiling tokio-macros v0.2.3
[INFO] [stderr]     Checking signature v1.0.0-pre.1
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking ed25519 v1.0.0-pre.1
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking signatory v0.16.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking curve25519-dalek v2.0.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling prost-build v0.6.0
[INFO] [stderr]     Checking tokio v0.2.9
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]     Checking signatory-dalek v0.16.0
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking nkeys v0.0.8
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]    Compiling prost v0.6.0
[INFO] [stderr]    Compiling prost-types v0.6.0
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-tls v0.3.0
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `"docker" "inspect" "dcedf5bc86e0e790f3586cf4415039504416d1e74282ccecde7e13c54d787b46"`
[INFO] running `"docker" "rm" "-f" "dcedf5bc86e0e790f3586cf4415039504416d1e74282ccecde7e13c54d787b46"`
[INFO] [stdout] dcedf5bc86e0e790f3586cf4415039504416d1e74282ccecde7e13c54d787b46