[INFO] cloning repository https://github.com/nirshahar/SVM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nirshahar/SVM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnirshahar%2FSVM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnirshahar%2FSVM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7471a165f7c255befe27bc55a14fa68dbab86893
[INFO] checking nirshahar/SVM against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnirshahar%2FSVM" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nirshahar/SVM
[INFO] finished tweaking git repo https://github.com/nirshahar/SVM
[INFO] tweaked toml for git repo https://github.com/nirshahar/SVM written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nirshahar/SVM on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nirshahar/SVM 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d54a79b821de330f786d7daeb422f2207f0ee8756889834b2c830802d658c6a
[INFO] running `Command { std: "docker" "start" "-a" "8d54a79b821de330f786d7daeb422f2207f0ee8756889834b2c830802d658c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d54a79b821de330f786d7daeb422f2207f0ee8756889834b2c830802d658c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d54a79b821de330f786d7daeb422f2207f0ee8756889834b2c830802d658c6a", kill_on_drop: false }`
[INFO] [stdout] 8d54a79b821de330f786d7daeb422f2207f0ee8756889834b2c830802d658c6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05f3dc3d3742e44686c9abbc121d526dbdd10e1660396b1ad68eb0d81279f55f
[INFO] running `Command { std: "docker" "start" "-a" "05f3dc3d3742e44686c9abbc121d526dbdd10e1660396b1ad68eb0d81279f55f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]     Checking svg v0.9.0
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[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 rand_distr v0.4.0
[INFO] [stderr]     Checking svm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Shape` and `array`
[INFO] [stdout]  --> src/kernel.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::{array, Array1, ArrayView1, Shape};
[INFO] [stdout]   |               ^^^^^                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_points`
[INFO] [stdout]   --> src/kernel.rs:40:73
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<K> {
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_points`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kernel`
[INFO] [stdout]   --> src/kernel.rs:40:100
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<K> {
[INFO] [stdout]    |                                                                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `proj_gd` is never used
[INFO] [stdout]   --> src/main.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn proj_gd<P>(
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Model` is never constructed
[INFO] [stdout]  --> src/kernel.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Model<'a, K> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dual_grad_at_data_point` is never used
[INFO] [stdout]   --> src/kernel.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn dual_grad_at_data_point(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dual_grad_with_kernel` is never used
[INFO] [stdout]   --> src/kernel.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn dual_grad_with_kernel(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_model` is never used
[INFO] [stdout]   --> src/kernel.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<K> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square_kernel` is never used
[INFO] [stdout]   --> src/kernel.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn square_kernel(x1: ArrayView1<'_, f32>, x2: ArrayView1<'_, f32>, r: i32) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rbf_kernel` is never used
[INFO] [stdout]   --> src/kernel.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn rbf_kernel(x1: ArrayView1<'_, f32>, x2: ArrayView1<'_, f32>, sigma: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/kernel.rs:40:86
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<K> {
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^^                -------- the same lifetime is hidden here
[INFO] [stdout]    |                                                                                      |
[INFO] [stdout]    |                                                                                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<'_, K> {
[INFO] [stdout]    |                                                                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Shape` and `array`
[INFO] [stdout]  --> src/kernel.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::{array, Array1, ArrayView1, Shape};
[INFO] [stdout]   |               ^^^^^                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_points`
[INFO] [stdout]   --> src/kernel.rs:40:73
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<K> {
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_points`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kernel`
[INFO] [stdout]   --> src/kernel.rs:40:100
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<K> {
[INFO] [stdout]    |                                                                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `proj_gd` is never used
[INFO] [stdout]   --> src/main.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn proj_gd<P>(
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Model` is never constructed
[INFO] [stdout]  --> src/kernel.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Model<'a, K> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dual_grad_at_data_point` is never used
[INFO] [stdout]   --> src/kernel.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn dual_grad_at_data_point(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dual_grad_with_kernel` is never used
[INFO] [stdout]   --> src/kernel.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn dual_grad_with_kernel(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learn_model` is never used
[INFO] [stdout]   --> src/kernel.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<K> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square_kernel` is never used
[INFO] [stdout]   --> src/kernel.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn square_kernel(x1: ArrayView1<'_, f32>, x2: ArrayView1<'_, f32>, r: i32) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rbf_kernel` is never used
[INFO] [stdout]   --> src/kernel.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn rbf_kernel(x1: ArrayView1<'_, f32>, x2: ArrayView1<'_, f32>, sigma: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/kernel.rs:40:86
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<K> {
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^^                -------- the same lifetime is hidden here
[INFO] [stdout]    |                                                                                      |
[INFO] [stdout]    |                                                                                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn learn_model<K : Fn(ArrayView1<'_, f32>, ArrayView1<'_, f32>) -> f32>(data_points: &[DataPoint], kernel: K) -> Model<'_, K> {
[INFO] [stdout]    |                                                                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.55s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.9.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "05f3dc3d3742e44686c9abbc121d526dbdd10e1660396b1ad68eb0d81279f55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f3dc3d3742e44686c9abbc121d526dbdd10e1660396b1ad68eb0d81279f55f", kill_on_drop: false }`
[INFO] [stdout] 05f3dc3d3742e44686c9abbc121d526dbdd10e1660396b1ad68eb0d81279f55f
