[INFO] fetching crate trajectory 0.0.2...
[INFO] testing trajectory-0.0.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate trajectory 0.0.2 into /workspace/builds/worker-70/source
[INFO] validating manifest of crates.io crate trajectory 0.0.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trajectory 0.0.2
[INFO] finished tweaking crates.io crate trajectory 0.0.2
[INFO] tweaked toml for crates.io crate trajectory 0.0.2 written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] crate crates.io crate trajectory 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b1bb8c0fcf26de25a1585184e35189d6f8c6ee61ffa2b60f02290406dd1b56a
[INFO] running `Command { std: "docker" "start" "-a" "9b1bb8c0fcf26de25a1585184e35189d6f8c6ee61ffa2b60f02290406dd1b56a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b1bb8c0fcf26de25a1585184e35189d6f8c6ee61ffa2b60f02290406dd1b56a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1bb8c0fcf26de25a1585184e35189d6f8c6ee61ffa2b60f02290406dd1b56a", kill_on_drop: false }`
[INFO] [stdout] 9b1bb8c0fcf26de25a1585184e35189d6f8c6ee61ffa2b60f02290406dd1b56a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f8d4af9f8d28865264580070d81349ea87483262a82ef7ca85496bf5559a06f
[INFO] running `Command { std: "docker" "start" "-a" "8f8d4af9f8d28865264580070d81349ea87483262a82ef7ca85496bf5559a06f", kill_on_drop: false }`
[INFO] [stderr]    Compiling trajectory v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "8f8d4af9f8d28865264580070d81349ea87483262a82ef7ca85496bf5559a06f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f8d4af9f8d28865264580070d81349ea87483262a82ef7ca85496bf5559a06f", kill_on_drop: false }`
[INFO] [stdout] 8f8d4af9f8d28865264580070d81349ea87483262a82ef7ca85496bf5559a06f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 545b554799806a41eaa68e61b3eb01ba85232057ea11acbce92c55e99665527e
[INFO] running `Command { std: "docker" "start" "-a" "545b554799806a41eaa68e61b3eb01ba85232057ea11acbce92c55e99665527e", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling gnuplot v0.0.37
[INFO] [stderr]    Compiling trajectory v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/plot.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fg.show();
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/plot.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fg.show();
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "545b554799806a41eaa68e61b3eb01ba85232057ea11acbce92c55e99665527e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "545b554799806a41eaa68e61b3eb01ba85232057ea11acbce92c55e99665527e", kill_on_drop: false }`
[INFO] [stdout] 545b554799806a41eaa68e61b3eb01ba85232057ea11acbce92c55e99665527e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 37462f6a0142a447c441177f2ee1952bff01df344dc710e2e0098e61f04f62b7
[INFO] running `Command { std: "docker" "start" "-a" "37462f6a0142a447c441177f2ee1952bff01df344dc710e2e0098e61f04f62b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/plot.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fg.show();
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/plot.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fg.show();
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `trajectory` (example "plot") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/trajectory-5094d834eb0496e7)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test linear::tests::test_linear ... ok
[INFO] [stdout] test cubic_spline::tests::test_acceleration ... ok
[INFO] [stdout] test cubic_spline::tests::test_velocity ... ok
[INFO] [stdout] test cubic_spline::tests::test_spline ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests trajectory
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "37462f6a0142a447c441177f2ee1952bff01df344dc710e2e0098e61f04f62b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37462f6a0142a447c441177f2ee1952bff01df344dc710e2e0098e61f04f62b7", kill_on_drop: false }`
[INFO] [stdout] 37462f6a0142a447c441177f2ee1952bff01df344dc710e2e0098e61f04f62b7