[INFO] crate simplers_optimization 0.4.1 is already in cache
[INFO] checking simplers_optimization-0.4.1 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate simplers_optimization 0.4.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate simplers_optimization 0.4.1 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simplers_optimization 0.4.1
[INFO] finished tweaking crates.io crate simplers_optimization 0.4.1
[INFO] tweaked toml for crates.io crate simplers_optimization 0.4.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate simplers_optimization 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_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" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5e2fa28d6aee867ef606cf33b407dde6b84fd02862bc0591a422926ed683414
[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" "d5e2fa28d6aee867ef606cf33b407dde6b84fd02862bc0591a422926ed683414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5e2fa28d6aee867ef606cf33b407dde6b84fd02862bc0591a422926ed683414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e2fa28d6aee867ef606cf33b407dde6b84fd02862bc0591a422926ed683414", kill_on_drop: false }`
[INFO] [stdout] d5e2fa28d6aee867ef606cf33b407dde6b84fd02862bc0591a422926ed683414
[INFO] running `Command { std: "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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--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] f49ad7720d1bcaaf61b61626ef2d72dffd8f5a81b7be71b09567fab4df68f885
[INFO] running `Command { std: "docker" "start" "-a" "f49ad7720d1bcaaf61b61626ef2d72dffd8f5a81b7be71b09567fab4df68f885", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking priority-queue v0.6.0
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking simplers_optimization v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `coordinates`
[INFO] [stdout]   --> src/main.rs:19:83
[INFO] [stdout]    |
[INFO] [stdout] 19 | ...                   .skip_while(|(value, coordinates)| *value > 1.)
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coordinates`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coordinates`
[INFO] [stdout]   --> src/main.rs:44:83
[INFO] [stdout]    |
[INFO] [stdout] 44 | ...                   .skip_while(|(value, coordinates)| *value > 1.)
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coordinates`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coordinates`
[INFO] [stdout]   --> src/main.rs:19:83
[INFO] [stdout]    |
[INFO] [stdout] 19 | ...                   .skip_while(|(value, coordinates)| *value > 1.)
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coordinates`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coordinates`
[INFO] [stdout]   --> src/main.rs:44:83
[INFO] [stdout]    |
[INFO] [stdout] 44 | ...                   .skip_while(|(value, coordinates)| *value > 1.)
[INFO] [stdout]    |                                            ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coordinates`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `Command { std: "docker" "inspect" "f49ad7720d1bcaaf61b61626ef2d72dffd8f5a81b7be71b09567fab4df68f885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f49ad7720d1bcaaf61b61626ef2d72dffd8f5a81b7be71b09567fab4df68f885", kill_on_drop: false }`
[INFO] [stdout] f49ad7720d1bcaaf61b61626ef2d72dffd8f5a81b7be71b09567fab4df68f885