[INFO] fetching crate simplers_optimization 0.4.1...
[INFO] checking simplers_optimization-0.4.1 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate simplers_optimization 0.4.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate simplers_optimization 0.4.1 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "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-4/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" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2986371f6af2ad04b2594414412bd7afadddc9a5d891bca23ab40e3b854c2ab
[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" "f2986371f6af2ad04b2594414412bd7afadddc9a5d891bca23ab40e3b854c2ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2986371f6af2ad04b2594414412bd7afadddc9a5d891bca23ab40e3b854c2ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2986371f6af2ad04b2594414412bd7afadddc9a5d891bca23ab40e3b854c2ab", kill_on_drop: false }`
[INFO] [stdout] f2986371f6af2ad04b2594414412bd7afadddc9a5d891bca23ab40e3b854c2ab
[INFO] running `Command { std: "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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03060af3cd58a4cb4cb9da0b051504b6ecf3ecbc53045eb744605c3e298a05df
[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" "03060af3cd58a4cb4cb9da0b051504b6ecf3ecbc53045eb744605c3e298a05df", kill_on_drop: false }`
[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 3.23s
[INFO] running `Command { std: "docker" "inspect" "03060af3cd58a4cb4cb9da0b051504b6ecf3ecbc53045eb744605c3e298a05df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03060af3cd58a4cb4cb9da0b051504b6ecf3ecbc53045eb744605c3e298a05df", kill_on_drop: false }`
[INFO] [stdout] 03060af3cd58a4cb4cb9da0b051504b6ecf3ecbc53045eb744605c3e298a05df