[INFO] updating cached repository https://github.com/ubnt-intrepid/rusty-machine-toy
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 406ff3a6d92c1d8686ac689d2724ebaf1c359d4f
[INFO] testing ubnt-intrepid/rusty-machine-toy against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Frusty-machine-toy" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ubnt-intrepid/rusty-machine-toy on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ubnt-intrepid/rusty-machine-toy
[INFO] finished tweaking git repo https://github.com/ubnt-intrepid/rusty-machine-toy
[INFO] tweaked toml for git repo https://github.com/ubnt-intrepid/rusty-machine-toy written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ubnt-intrepid/rusty-machine-toy already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 5c4380b9a7bf280aec954a785ac1060ed0a16badf08743395803e3c46f7c5e52
[INFO] running `"docker" "start" "-a" "5c4380b9a7bf280aec954a785ac1060ed0a16badf08743395803e3c46f7c5e52"`
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling either v1.0.2
[INFO] [stderr]    Compiling rustplotlib v0.0.4 (https://github.com/ubnt-intrepid/rustplotlib.git#273305c3)
[INFO] [stderr]    Compiling csv v0.14.7
[INFO] [stderr]    Compiling itertools v0.5.8
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling rulinalg v0.3.7
[INFO] [stderr]    Compiling rusty-machine v0.5.3
[INFO] [stderr]    Compiling rusty-machine-toy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Vector`
[INFO] [stderr]  --> src/bin/logistic.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rm::linalg::{Vector, Matrix};
[INFO] [stderr]   |                  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `probs`
[INFO] [stderr]   --> src/bin/logistic.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let probs = gmm.predict(&inputs).unwrap();
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_probs`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/../model/perceptron.rs:27:14
[INFO] [stderr]    |
[INFO] [stderr] 27 |         for (mut w, x) in izip!(&mut self.w[..], &xi[..]) {
[INFO] [stderr]    |              ----^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.20s
[INFO] running `"docker" "inspect" "5c4380b9a7bf280aec954a785ac1060ed0a16badf08743395803e3c46f7c5e52"`
[INFO] running `"docker" "rm" "-f" "5c4380b9a7bf280aec954a785ac1060ed0a16badf08743395803e3c46f7c5e52"`
[INFO] [stdout] 5c4380b9a7bf280aec954a785ac1060ed0a16badf08743395803e3c46f7c5e52
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e91302e5ac2d569d9a6140f495655fcd11a754e4c644b3c245c3948e3814ea2e
[INFO] running `"docker" "start" "-a" "e91302e5ac2d569d9a6140f495655fcd11a754e4c644b3c245c3948e3814ea2e"`
[INFO] [stderr]    Compiling rusty-machine-toy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/../model/perceptron.rs:27:14
[INFO] [stderr]    |
[INFO] [stderr] 27 |         for (mut w, x) in izip!(&mut self.w[..], &xi[..]) {
[INFO] [stderr]    |              ----^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vector`
[INFO] [stderr]  --> src/bin/logistic.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rm::linalg::{Vector, Matrix};
[INFO] [stderr]   |                  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `probs`
[INFO] [stderr]   --> src/bin/logistic.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let probs = gmm.predict(&inputs).unwrap();
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_probs`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "e91302e5ac2d569d9a6140f495655fcd11a754e4c644b3c245c3948e3814ea2e"`
[INFO] running `"docker" "rm" "-f" "e91302e5ac2d569d9a6140f495655fcd11a754e4c644b3c245c3948e3814ea2e"`
[INFO] [stdout] e91302e5ac2d569d9a6140f495655fcd11a754e4c644b3c245c3948e3814ea2e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 9de4c341ef15d95d10da1d4b3017ffbd15d35108c0cd4923fc3a28185341cf26
[INFO] running `"docker" "start" "-a" "9de4c341ef15d95d10da1d4b3017ffbd15d35108c0cd4923fc3a28185341cf26"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/logistic-8fdfbe8ec1be2502
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/perceptron-9028080b9bad189d
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9de4c341ef15d95d10da1d4b3017ffbd15d35108c0cd4923fc3a28185341cf26"`
[INFO] running `"docker" "rm" "-f" "9de4c341ef15d95d10da1d4b3017ffbd15d35108c0cd4923fc3a28185341cf26"`
[INFO] [stdout] 9de4c341ef15d95d10da1d4b3017ffbd15d35108c0cd4923fc3a28185341cf26