[INFO] cloning repository https://github.com/ubnt-intrepid/rusty-machine-toy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ubnt-intrepid/rusty-machine-toy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Frusty-machine-toy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Frusty-machine-toy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 406ff3a6d92c1d8686ac689d2724ebaf1c359d4f
[INFO] checking ubnt-intrepid/rusty-machine-toy against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Frusty-machine-toy" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ubnt-intrepid/rusty-machine-toy on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 /workspace/builds/worker-6/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/ubnt-intrepid/rustplotlib.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b286e0271c2429786a524b440638980a8912df33916e732ff9afb0b072e7003
[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" "5b286e0271c2429786a524b440638980a8912df33916e732ff9afb0b072e7003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b286e0271c2429786a524b440638980a8912df33916e732ff9afb0b072e7003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b286e0271c2429786a524b440638980a8912df33916e732ff9afb0b072e7003", kill_on_drop: false }`
[INFO] [stdout] 5b286e0271c2429786a524b440638980a8912df33916e732ff9afb0b072e7003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa4ee54e2d746aba808f0ca5efc30e2dda15c4f77b4c9267f404ce329ec4514a
[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" "fa4ee54e2d746aba808f0ca5efc30e2dda15c4f77b4c9267f404ce329ec4514a", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]     Checking either v1.0.2
[INFO] [stderr]     Checking rustplotlib v0.0.4 (https://github.com/ubnt-intrepid/rustplotlib.git#273305c3)
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]     Checking itertools v0.5.8
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]     Checking rusty-machine v0.5.3
[INFO] [stderr]     Checking rusty-machine-toy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Vector`
[INFO] [stdout]  --> src/bin/logistic.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rm::linalg::{Vector, Matrix};
[INFO] [stdout]   |                  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `probs`
[INFO] [stdout]   --> src/bin/logistic.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let probs = gmm.predict(&inputs).unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_probs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vector`
[INFO] [stdout]  --> src/bin/logistic.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rm::linalg::{Vector, Matrix};
[INFO] [stdout]   |                  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/../model/perceptron.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 |         for (mut w, x) in izip!(&mut self.w[..], &xi[..]) {
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `probs`
[INFO] [stdout]   --> src/bin/logistic.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let probs = gmm.predict(&inputs).unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_probs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/../model/perceptron.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 |         for (mut w, x) in izip!(&mut self.w[..], &xi[..]) {
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.67s
[INFO] running `Command { std: "docker" "inspect" "fa4ee54e2d746aba808f0ca5efc30e2dda15c4f77b4c9267f404ce329ec4514a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa4ee54e2d746aba808f0ca5efc30e2dda15c4f77b4c9267f404ce329ec4514a", kill_on_drop: false }`
[INFO] [stdout] fa4ee54e2d746aba808f0ca5efc30e2dda15c4f77b4c9267f404ce329ec4514a