[INFO] fetching crate pos_pso 0.1.0...
[INFO] checking pos_pso-0.1.0 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate pos_pso 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pos_pso 0.1.0 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pos_pso 0.1.0
[INFO] finished tweaking crates.io crate pos_pso 0.1.0
[INFO] tweaked toml for crates.io crate pos_pso 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate pos_pso 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "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" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "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] 6cb019093b455d2efafe7b5d3ad0f9e231a3ffeff6cb319f823dea7bf7611c1b
[INFO] running `"docker" "start" "-a" "6cb019093b455d2efafe7b5d3ad0f9e231a3ffeff6cb319f823dea7bf7611c1b"`
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking pos_pso v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `univ_record`
[INFO] [stderr]    --> src/optimizer/swarm.rs:146:61
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn eval_costs(&mut self, pricetag: &Arc<impl Pricetag>, univ_record: &mut Arc<RwLock<Record>>) -> bool {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_univ_record`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `univ_record`
[INFO] [stderr]    --> src/optimizer/swarm.rs:146:61
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn eval_costs(&mut self, pricetag: &Arc<impl Pricetag>, univ_record: &mut Arc<RwLock<Record>>) -> bool {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_univ_record`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `config`
[INFO] [stderr]   --> src/optimizer.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     config: PsoConfig,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `config`
[INFO] [stderr]   --> src/optimizer.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     config: PsoConfig,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `"docker" "inspect" "6cb019093b455d2efafe7b5d3ad0f9e231a3ffeff6cb319f823dea7bf7611c1b"`
[INFO] running `"docker" "rm" "-f" "6cb019093b455d2efafe7b5d3ad0f9e231a3ffeff6cb319f823dea7bf7611c1b"`
[INFO] [stdout] 6cb019093b455d2efafe7b5d3ad0f9e231a3ffeff6cb319f823dea7bf7611c1b