[INFO] cloning repository https://github.com/tiger101hc/rightfm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tiger101hc/rightfm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiger101hc%2Frightfm", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f662ee488bc60014cded421a229e900266ef7d28
[INFO] checking tiger101hc/rightfm against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiger101hc%2Frightfm" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tiger101hc/rightfm
[INFO] finished tweaking git repo https://github.com/tiger101hc/rightfm
[INFO] tweaked toml for git repo https://github.com/tiger101hc/rightfm written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tiger101hc/rightfm on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
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[INFO] crate git repo https://github.com/tiger101hc/rightfm 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/rightfm_fast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/rightfm_fast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/rightfm_fast.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     learning_rate: Flt,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]    --> src/rightfm_fast.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     num_threads: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/rightfm_fast.rs:188:5
[INFO] [stdout]     |
[INFO] [stdout] 188 |     learning_rate: Flt,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/rightfm_fast.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     learning_rate: Flt,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]    --> src/rightfm_fast.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     num_threads: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/rightfm_fast.rs:286:5
[INFO] [stdout]     |
[INFO] [stdout] 286 |     learning_rate: Flt,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/rightfm_fast.rs:188:5
[INFO] [stdout]     |
[INFO] [stdout] 188 |     learning_rate: Flt,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/rightfm_fast.rs:286:5
[INFO] [stdout]     |
[INFO] [stdout] 286 |     learning_rate: Flt,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/rightfm_fast.rs:374:5
[INFO] [stdout]     |
[INFO] [stdout] 374 |     learning_rate: Flt,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]    --> src/rightfm_fast.rs:483:5
[INFO] [stdout]     |
[INFO] [stdout] 483 |     num_threads: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]    --> src/rightfm_fast.rs:518:5
[INFO] [stdout]     |
[INFO] [stdout] 518 |     num_threads: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]    --> src/rightfm_fast.rs:590:5
[INFO] [stdout]     |
[INFO] [stdout] 590 |     num_threads: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/rightfm_fast.rs:374:5
[INFO] [stdout]     |
[INFO] [stdout] 374 |     learning_rate: Flt,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]    --> src/rightfm_fast.rs:483:5
[INFO] [stdout]     |
[INFO] [stdout] 483 |     num_threads: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]    --> src/rightfm_fast.rs:518:5
[INFO] [stdout]     |
[INFO] [stdout] 518 |     num_threads: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]    --> src/rightfm_fast.rs:590:5
[INFO] [stdout]     |
[INFO] [stdout] 590 |     num_threads: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item_alpha`
[INFO] [stdout]    --> src/rightfm_fast.rs:706:42
[INFO] [stdout]     |
[INFO] [stdout] 706 | fn regularize(rightfm: &mut FastRightFM, item_alpha: Flt, user_alpha: Flt) {
[INFO] [stdout]     |                                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_item_alpha`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_alpha`
[INFO] [stdout]    --> src/rightfm_fast.rs:706:59
[INFO] [stdout]     |
[INFO] [stdout] 706 | fn regularize(rightfm: &mut FastRightFM, item_alpha: Flt, user_alpha: Flt) {
[INFO] [stdout]     |                                                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_alpha`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item_alpha`
[INFO] [stdout]    --> src/rightfm_fast.rs:706:42
[INFO] [stdout]     |
[INFO] [stdout] 706 | fn regularize(rightfm: &mut FastRightFM, item_alpha: Flt, user_alpha: Flt) {
[INFO] [stdout]     |                                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_item_alpha`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user_alpha`
[INFO] [stdout]    --> src/rightfm_fast.rs:706:59
[INFO] [stdout]     |
[INFO] [stdout] 706 | fn regularize(rightfm: &mut FastRightFM, item_alpha: Flt, user_alpha: Flt) {
[INFO] [stdout]     |                                                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_user_alpha`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_representation_par` is never used
[INFO] [stdout]    --> src/rightfm_fast.rs:647:4
[INFO] [stdout]     |
[INFO] [stdout] 647 | fn compute_representation_par(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_prediction_from_repr_par` is never used
[INFO] [stdout]    --> src/rightfm_fast.rs:689:4
[INFO] [stdout]     |
[INFO] [stdout] 689 | fn compute_prediction_from_repr_par(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_representation_par` is never used
[INFO] [stdout]    --> src/rightfm_fast.rs:647:4
[INFO] [stdout]     |
[INFO] [stdout] 647 | fn compute_representation_par(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_prediction_from_repr_par` is never used
[INFO] [stdout]    --> src/rightfm_fast.rs:689:4
[INFO] [stdout]     |
[INFO] [stdout] 689 | fn compute_prediction_from_repr_par(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "dab0b7575739f1ed4959adc99905a3c434e357b4a542c4d1f50c4c0bc33729de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab0b7575739f1ed4959adc99905a3c434e357b4a542c4d1f50c4c0bc33729de", kill_on_drop: false }`
[INFO] [stdout] dab0b7575739f1ed4959adc99905a3c434e357b4a542c4d1f50c4c0bc33729de