[INFO] fetching crate bayes_estimate 0.8.0...
[INFO] checking bayes_estimate-0.8.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate bayes_estimate 0.8.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate bayes_estimate 0.8.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bayes_estimate 0.8.0
[INFO] finished tweaking crates.io crate bayes_estimate 0.8.0
[INFO] tweaked toml for crates.io crate bayes_estimate 0.8.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate bayes_estimate 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f3b35067cd3f8af07741dfaeb8541f728709738186ca2f1a3b02cf422d12665
[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" "1f3b35067cd3f8af07741dfaeb8541f728709738186ca2f1a3b02cf422d12665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f3b35067cd3f8af07741dfaeb8541f728709738186ca2f1a3b02cf422d12665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f3b35067cd3f8af07741dfaeb8541f728709738186ca2f1a3b02cf422d12665", kill_on_drop: false }`
[INFO] [stdout] 1f3b35067cd3f8af07741dfaeb8541f728709738186ca2f1a3b02cf422d12665
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 649a28d5ece608c4f99c475e95e27721d13e05bb47c5dc233140a94f2e680eae
[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" "649a28d5ece608c4f99c475e95e27721d13e05bb47c5dc233140a94f2e680eae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking matrixmultiply v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking simba v0.4.0
[INFO] [stderr]     Checking rand_distr v0.4.0
[INFO] [stderr]     Checking nalgebra v0.25.3
[INFO] [stderr]     Checking bayes_estimate v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: struct `CorrelatedNoise` is private
[INFO] [stdout]   --> examples/simple_example.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  |     CorrelatedNoise, ExtendedLinearObserver, ExtendedLinearPredictor, KalmanState
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ private struct
[INFO] [stdout]    |
[INFO] [stdout] note: the struct `CorrelatedNoise` is defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/models.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::noise::CorrelatedNoise;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0603`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bayes_estimate`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/test_estimators.rs:380:13
[INFO] [stdout]     |
[INFO] [stdout] 380 |         let mut truth = Vector2::new(1., 0.);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "649a28d5ece608c4f99c475e95e27721d13e05bb47c5dc233140a94f2e680eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "649a28d5ece608c4f99c475e95e27721d13e05bb47c5dc233140a94f2e680eae", kill_on_drop: false }`
[INFO] [stdout] 649a28d5ece608c4f99c475e95e27721d13e05bb47c5dc233140a94f2e680eae