[INFO] fetching crate ballistics-engine 0.31.0...
[INFO] checking ballistics-engine-0.31.0 against 760e1de835e253bf28bbcbfee38b5e8ed9ffe074 for pr-133502-27
[INFO] extracting crate ballistics-engine 0.31.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ballistics-engine 0.31.0
[INFO] finished tweaking crates.io crate ballistics-engine 0.31.0
[INFO] tweaked toml for crates.io crate ballistics-engine 0.31.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ballistics-engine 0.31.0 on toolchain 760e1de835e253bf28bbcbfee38b5e8ed9ffe074
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ballistics-engine 0.31.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0e026edc37f2273a3c2495762f12b9d84f860929ef2fd68cd15d10cd30a203d2
[INFO] running `Command { std: "docker" "start" "0e026edc37f2273a3c2495762f12b9d84f860929ef2fd68cd15d10cd30a203d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e026edc37f2273a3c2495762f12b9d84f860929ef2fd68cd15d10cd30a203d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0e026edc37f2273a3c2495762f12b9d84f860929ef2fd68cd15d10cd30a203d2" "/opt/rustwide/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e026edc37f2273a3c2495762f12b9d84f860929ef2fd68cd15d10cd30a203d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0e026edc37f2273a3c2495762f12b9d84f860929ef2fd68cd15d10cd30a203d2" "/opt/rustwide/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking ndarray-npy v0.10.0
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[INFO] [stderr]     Checking ballistics-engine v0.31.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/trajectory_integration.rs:966:13
[INFO] [stdout]     |
[INFO] [stdout] 966 |             launch_velocity.norm().to_bits()
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ballistics-engine` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0e026edc37f2273a3c2495762f12b9d84f860929ef2fd68cd15d10cd30a203d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e026edc37f2273a3c2495762f12b9d84f860929ef2fd68cd15d10cd30a203d2", kill_on_drop: false }`
[INFO] [stdout] 0e026edc37f2273a3c2495762f12b9d84f860929ef2fd68cd15d10cd30a203d2
