[INFO] cloning repository https://github.com/CatieA17/DS210_Final_Project
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CatieA17/DS210_Final_Project" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCatieA17%2FDS210_Final_Project", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCatieA17%2FDS210_Final_Project'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 333dfa0c0d949e6556785e1cc8923ee62f0c05fe
[INFO] testing CatieA17/DS210_Final_Project against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCatieA17%2FDS210_Final_Project" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/CatieA17/DS210_Final_Project
[INFO] finished tweaking git repo https://github.com/CatieA17/DS210_Final_Project
[INFO] tweaked toml for git repo https://github.com/CatieA17/DS210_Final_Project written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CatieA17/DS210_Final_Project on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CatieA17/DS210_Final_Project 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rawpointer v0.2.1
[INFO] [stderr]   Downloaded itoa v1.0.14
[INFO] [stderr]   Downloaded num-complex v0.4.6
[INFO] [stderr]   Downloaded csv-core v0.1.11
[INFO] [stderr]   Downloaded unicode-ident v1.0.14
[INFO] [stderr]   Downloaded proc-macro2 v1.0.92
[INFO] [stderr]   Downloaded serde v1.0.216
[INFO] [stderr]   Downloaded matrixmultiply v0.3.9
[INFO] [stderr]   Downloaded serde_derive v1.0.216
[INFO] [stderr]   Downloaded ndarray v0.15.6
[INFO] [stderr]   Downloaded syn v2.0.90
[INFO] [stderr]   Downloaded csv v1.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d95e8fe29efa9074d3d93727c8aa1169072fbefa142b5bda93c2777bf0722818
[INFO] running `Command { std: "docker" "start" "-a" "d95e8fe29efa9074d3d93727c8aa1169072fbefa142b5bda93c2777bf0722818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d95e8fe29efa9074d3d93727c8aa1169072fbefa142b5bda93c2777bf0722818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d95e8fe29efa9074d3d93727c8aa1169072fbefa142b5bda93c2777bf0722818", kill_on_drop: false }`
[INFO] [stdout] d95e8fe29efa9074d3d93727c8aa1169072fbefa142b5bda93c2777bf0722818
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18c5b4faf3cb5ab189cb72d97af15e14753028bcf984e03a330d4fa338b968ee
[INFO] running `Command { std: "docker" "start" "-a" "18c5b4faf3cb5ab189cb72d97af15e14753028bcf984e03a330d4fa338b968ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling csv v1.3.1
[INFO] [stderr]    Compiling main v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Array2`
[INFO] [stdout]  --> src/similarity.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ndarray::{Array2, ArrayView1};
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/book_recs.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::ArrayView1`
[INFO] [stdout]  --> src/book_recs.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ndarray::ArrayView1;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::prelude::*`
[INFO] [stdout]  --> src/cluster_reps.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::prelude`
[INFO] [stdout]  --> src/similarity.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_users`
[INFO] [stdout]  --> src/book_recs.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let num_users = rating_matrix.nrows();
[INFO] [stdout]   |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_users`
[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/cluster_reps.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut min_dist = f32::MAX;
[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 comparison that must be used
[INFO] [stdout]   --> src/cluster_reps.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 min_dist == dist;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^ the comparison produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 let _ = min_dist == dist;
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.53s
[INFO] running `Command { std: "docker" "inspect" "18c5b4faf3cb5ab189cb72d97af15e14753028bcf984e03a330d4fa338b968ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c5b4faf3cb5ab189cb72d97af15e14753028bcf984e03a330d4fa338b968ee", kill_on_drop: false }`
[INFO] [stdout] 18c5b4faf3cb5ab189cb72d97af15e14753028bcf984e03a330d4fa338b968ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 206af676b26d01e5476e344bd8caa05182fb8d22324216657f24d573d404f393
[INFO] running `Command { std: "docker" "start" "-a" "206af676b26d01e5476e344bd8caa05182fb8d22324216657f24d573d404f393", kill_on_drop: false }`
[INFO] [stderr]    Compiling main v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/book_recs.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::ArrayView1`
[INFO] [stdout]  --> src/book_recs.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ndarray::ArrayView1;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::prelude::*`
[INFO] [stdout]  --> src/cluster_reps.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Vec<{float}>: FixedInitializer` is not satisfied
[INFO] [stdout]   --> src/similarity.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let matrix = Array2::from(vec![
[INFO] [stdout]    |                  ^^^^^^ the trait `FixedInitializer` is not implemented for `Vec<{float}>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `FixedInitializer`:
[INFO] [stdout]              [T; 0]
[INFO] [stdout]              [T; 10]
[INFO] [stdout]              [T; 11]
[INFO] [stdout]              [T; 12]
[INFO] [stdout]              [T; 13]
[INFO] [stdout]              [T; 14]
[INFO] [stdout]              [T; 15]
[INFO] [stdout]              [T; 16]
[INFO] [stdout]            and 9 others
[INFO] [stdout]    = note: required for `ArrayBase<OwnedRepr<_>, Dim<[usize; 2]>>` to implement `From<Vec<Vec<{float}>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Vec<{float}>: FixedInitializer` is not satisfied
[INFO] [stdout]   --> src/clusters.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let data = Array2::from(vec![
[INFO] [stdout]    |                ^^^^^^ the trait `FixedInitializer` is not implemented for `Vec<{float}>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `FixedInitializer`:
[INFO] [stdout]              [T; 0]
[INFO] [stdout]              [T; 10]
[INFO] [stdout]              [T; 11]
[INFO] [stdout]              [T; 12]
[INFO] [stdout]              [T; 13]
[INFO] [stdout]              [T; 14]
[INFO] [stdout]              [T; 15]
[INFO] [stdout]              [T; 16]
[INFO] [stdout]            and 9 others
[INFO] [stdout]    = note: required for `ArrayBase<OwnedRepr<_>, Dim<[usize; 2]>>` to implement `From<Vec<Vec<{float}>>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::prelude`
[INFO] [stdout]  --> src/similarity.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_users`
[INFO] [stdout]  --> src/book_recs.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let num_users = rating_matrix.nrows();
[INFO] [stdout]   |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_users`
[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/cluster_reps.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut min_dist = f32::MAX;
[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] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `main` (bin "main" test) due to 2 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "206af676b26d01e5476e344bd8caa05182fb8d22324216657f24d573d404f393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206af676b26d01e5476e344bd8caa05182fb8d22324216657f24d573d404f393", kill_on_drop: false }`
[INFO] [stdout] 206af676b26d01e5476e344bd8caa05182fb8d22324216657f24d573d404f393
