[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#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[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 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/ubnt-intrepid/rustplotlib.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rulinalg v0.3.7
[INFO] [stderr]   Downloaded matrixmultiply v0.1.13
[INFO] [stderr]   Downloaded csv v0.14.7
[INFO] [stderr]   Downloaded rusty-machine v0.5.3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] deefd0a6c9dfe6db80dc9962c6962c25c0aa25b54319d9b8c2cb9eed92699e1c
[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" "deefd0a6c9dfe6db80dc9962c6962c25c0aa25b54319d9b8c2cb9eed92699e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "deefd0a6c9dfe6db80dc9962c6962c25c0aa25b54319d9b8c2cb9eed92699e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deefd0a6c9dfe6db80dc9962c6962c25c0aa25b54319d9b8c2cb9eed92699e1c", kill_on_drop: false }`
[INFO] [stdout] deefd0a6c9dfe6db80dc9962c6962c25c0aa25b54319d9b8c2cb9eed92699e1c
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2bf9da699aa0f37f355ef9db15ed5eb4ee6206e62d6e9880c0e08ae27671b3ac
[INFO] running `Command { std: "docker" "start" "-a" "2bf9da699aa0f37f355ef9db15ed5eb4ee6206e62d6e9880c0e08ae27671b3ac", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]     Checking libc v0.2.18
[INFO] [stderr]     Checking either v1.0.2
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking rustplotlib v0.0.4 (https://github.com/ubnt-intrepid/rustplotlib.git#273305c3)
[INFO] [stderr]     Checking itertools v0.5.8
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]     Checking rusty-machine v0.5.3
[INFO] [stderr]     Checking rusty-machine-toy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]  --> src/bin/../data/iris.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, RustcDecodable)]
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]  --> src/bin/../data/iris.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, RustcDecodable)]
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/bin/logistic.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Debug, Clone, RustcDecodable)]
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` 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: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/bin/logistic.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Debug, Clone, RustcDecodable)]
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` 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: 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: 2 warnings 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "2bf9da699aa0f37f355ef9db15ed5eb4ee6206e62d6e9880c0e08ae27671b3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf9da699aa0f37f355ef9db15ed5eb4ee6206e62d6e9880c0e08ae27671b3ac", kill_on_drop: false }`
[INFO] [stdout] 2bf9da699aa0f37f355ef9db15ed5eb4ee6206e62d6e9880c0e08ae27671b3ac