[INFO] fetching crate s_curve 0.1.4...
[INFO] checking s_curve-0.1.4 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate s_curve 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate s_curve 0.1.4 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate s_curve 0.1.4
[INFO] finished tweaking crates.io crate s_curve 0.1.4
[INFO] tweaked toml for crates.io crate s_curve 0.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate s_curve 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 672071bf712d7f9d3cc6ff22cccd87a6abeb780b0c718664dd1ee4b820c05bed
[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" "672071bf712d7f9d3cc6ff22cccd87a6abeb780b0c718664dd1ee4b820c05bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "672071bf712d7f9d3cc6ff22cccd87a6abeb780b0c718664dd1ee4b820c05bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "672071bf712d7f9d3cc6ff22cccd87a6abeb780b0c718664dd1ee4b820c05bed", kill_on_drop: false }`
[INFO] [stdout] 672071bf712d7f9d3cc6ff22cccd87a6abeb780b0c718664dd1ee4b820c05bed
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32f665e477f19c0b5af1ecc3f08d1b5fa532b5094f2154bc1d18fb9fc5020f54
[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" "32f665e477f19c0b5af1ecc3f08d1b5fa532b5094f2154bc1d18fb9fc5020f54", kill_on_drop: false }`
[INFO] [stderr]     Checking s_curve v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking gnuplot v0.0.37
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> examples/plot.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | use gnuplot::{Figure, Caption, Color, AxesCommon};
[INFO] [stdout]   |                                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.45s
[INFO] running `Command { std: "docker" "inspect" "32f665e477f19c0b5af1ecc3f08d1b5fa532b5094f2154bc1d18fb9fc5020f54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32f665e477f19c0b5af1ecc3f08d1b5fa532b5094f2154bc1d18fb9fc5020f54", kill_on_drop: false }`
[INFO] [stdout] 32f665e477f19c0b5af1ecc3f08d1b5fa532b5094f2154bc1d18fb9fc5020f54