[INFO] fetching crate pos_pso 0.1.4...
[INFO] checking pos_pso-0.1.4 against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] extracting crate pos_pso 0.1.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate pos_pso 0.1.4 on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pos_pso 0.1.4
[INFO] finished tweaking crates.io crate pos_pso 0.1.4
[INFO] tweaked toml for crates.io crate pos_pso 0.1.4 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0725a46a05e7a6cfdfb8427a0a4f480c38a02fea718e47cfa4652ff6eb895ffa
[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" "0725a46a05e7a6cfdfb8427a0a4f480c38a02fea718e47cfa4652ff6eb895ffa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0725a46a05e7a6cfdfb8427a0a4f480c38a02fea718e47cfa4652ff6eb895ffa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0725a46a05e7a6cfdfb8427a0a4f480c38a02fea718e47cfa4652ff6eb895ffa", kill_on_drop: false }`
[INFO] [stdout] 0725a46a05e7a6cfdfb8427a0a4f480c38a02fea718e47cfa4652ff6eb895ffa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7044fe54901affde711ad55ca33db93749b7d1772cb0310d45df6fdeaa96e8dd
[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" "7044fe54901affde711ad55ca33db93749b7d1772cb0310d45df6fdeaa96e8dd", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[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 v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `min`
[INFO] [stdout]   --> src/lib.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let min = opt.minimize(job_config, swarm_config,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_min`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min`
[INFO] [stdout]   --> src/lib.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let min = opt.minimize_distributed(job_config, swarm_config_dist, 
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.60s
[INFO] running `Command { std: "docker" "inspect" "7044fe54901affde711ad55ca33db93749b7d1772cb0310d45df6fdeaa96e8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7044fe54901affde711ad55ca33db93749b7d1772cb0310d45df6fdeaa96e8dd", kill_on_drop: false }`
[INFO] [stdout] 7044fe54901affde711ad55ca33db93749b7d1772cb0310d45df6fdeaa96e8dd