[INFO] fetching crate rudolf 0.0.1...
[INFO] checking rudolf-0.0.1 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate rudolf 0.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rudolf 0.0.1 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rudolf 0.0.1
[INFO] finished tweaking crates.io crate rudolf 0.0.1
[INFO] tweaked toml for crates.io crate rudolf 0.0.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate rudolf 0.0.1 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simba v0.4.0
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[INFO] [stderr]   Downloaded nalgebra v0.26.2
[INFO] [stderr]   Downloaded font-kit v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0e88fcf7f9c9da58cb0abdd8f22687ab028a0395439a7e018d7928ffa027d27
[INFO] running `Command { std: "docker" "start" "-a" "b0e88fcf7f9c9da58cb0abdd8f22687ab028a0395439a7e018d7928ffa027d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0e88fcf7f9c9da58cb0abdd8f22687ab028a0395439a7e018d7928ffa027d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e88fcf7f9c9da58cb0abdd8f22687ab028a0395439a7e018d7928ffa027d27", kill_on_drop: false }`
[INFO] [stdout] b0e88fcf7f9c9da58cb0abdd8f22687ab028a0395439a7e018d7928ffa027d27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7f56c248cde58df6453765307099ceac71fdfd87ffdec0e81fc2886163e355a
[INFO] running `Command { std: "docker" "start" "-a" "e7f56c248cde58df6453765307099ceac71fdfd87ffdec0e81fc2886163e355a", kill_on_drop: false }`
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[INFO] [stderr]     Checking rudolf v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0596]: cannot borrow `filter` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> benches/kalman_f32s3o3.rs:26:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let filter = KalmanFilter::<f32, 3, 3> {
[INFO] [stdout]    |         ------ help: consider changing this to be mutable: `mut filter`
[INFO] [stdout] ...
[INFO] [stdout] 26 |         b.iter(|| filter.predict(black_box(&state), black_box(&new_ctrl)))
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `filter` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> benches/kalman_f32s3o3.rs:50:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let filter = KalmanFilter::<f32, 3, 3> {
[INFO] [stdout]    |         ------ help: consider changing this to be mutable: `mut filter`
[INFO] [stdout] ...
[INFO] [stdout] 50 |         b.iter(|| filter.update(black_box(&state), black_box(&new_obs)))
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rudolf` (bench "kalman_f32s3o3") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e7f56c248cde58df6453765307099ceac71fdfd87ffdec0e81fc2886163e355a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f56c248cde58df6453765307099ceac71fdfd87ffdec0e81fc2886163e355a", kill_on_drop: false }`
[INFO] [stdout] e7f56c248cde58df6453765307099ceac71fdfd87ffdec0e81fc2886163e355a
