[INFO] crate easyneural 0.1.0 is already in cache
[INFO] checking easyneural-0.1.0 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate easyneural 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate easyneural 0.1.0 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate easyneural 0.1.0
[INFO] finished tweaking crates.io crate easyneural 0.1.0
[INFO] tweaked toml for crates.io crate easyneural 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 4763b73bf81fed5af7d224b090508610d634438690c9596a192d15904fd8e52f
[INFO] running `"docker" "start" "-a" "4763b73bf81fed5af7d224b090508610d634438690c9596a192d15904fd8e52f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling serde v1.0.109
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.109
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking easyneural v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `parents`
[INFO] [stderr]   --> tests/integration_tests.rs:64:19
[INFO] [stderr]    |
[INFO] [stderr] 64 |         if let Ok(parents) = session.run(Finish::Occurences(SIMULATION_ROUNDS));
[INFO] [stderr]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parents`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.91s
[INFO] running `"docker" "inspect" "4763b73bf81fed5af7d224b090508610d634438690c9596a192d15904fd8e52f"`
[INFO] running `"docker" "rm" "-f" "4763b73bf81fed5af7d224b090508610d634438690c9596a192d15904fd8e52f"`
[INFO] [stdout] 4763b73bf81fed5af7d224b090508610d634438690c9596a192d15904fd8e52f