[INFO] cloning repository https://github.com/akshita-as02/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akshita-as02/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakshita-as02%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakshita-as02%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] addcdc70d7cad1ebcf7b4842accb61c461024dc8
[INFO] testing akshita-as02/rust-practice against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakshita-as02%2Frust-practice" "/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/akshita-as02/rust-practice
[INFO] finished tweaking git repo https://github.com/akshita-as02/rust-practice
[INFO] tweaked toml for git repo https://github.com/akshita-as02/rust-practice written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/akshita-as02/rust-practice on toolchain beta-2025-09-21
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[INFO] crate git repo https://github.com/akshita-as02/rust-practice 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] b555a14cc17d2fdf29e35cd22e59dbcf774146a02900bee0b09b0aa78fd8688d
[INFO] running `Command { std: "docker" "start" "-a" "b555a14cc17d2fdf29e35cd22e59dbcf774146a02900bee0b09b0aa78fd8688d", kill_on_drop: false }`
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[INFO] [stdout] 99e690bf3d0d3fdb69f0878287c2496c7422c450589260bc655963515a00f138
[INFO] running `Command { std: "docker" "start" "-a" "99e690bf3d0d3fdb69f0878287c2496c7422c450589260bc655963515a00f138", kill_on_drop: false }`
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[INFO] [stderr]    Compiling rust-rec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/models/user_item.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct User {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `user_similarities` is never read
[INFO] [stdout]   --> src/algorithms/collaborative.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct UserBasedCF {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     user_similarities: HashMap<(u32, u32), f32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `calculate_similarity` is never used
[INFO] [stdout]   --> src/algorithms/collaborative.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl UserBasedCF {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn calculate_similarity(&self, user1: u32, user2: u32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `Command { std: "docker" "inspect" "99e690bf3d0d3fdb69f0878287c2496c7422c450589260bc655963515a00f138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99e690bf3d0d3fdb69f0878287c2496c7422c450589260bc655963515a00f138", kill_on_drop: false }`
[INFO] [stdout] 99e690bf3d0d3fdb69f0878287c2496c7422c450589260bc655963515a00f138
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23ba34d814b55f9c2da3f82ac75c16855f6eb780cef6a4de3a19f1f868bd67b3
[INFO] running `Command { std: "docker" "start" "-a" "23ba34d814b55f9c2da3f82ac75c16855f6eb780cef6a4de3a19f1f868bd67b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-rec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/models/user_item.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct User {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `user_similarities` is never read
[INFO] [stdout]   --> src/algorithms/collaborative.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct UserBasedCF {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     user_similarities: HashMap<(u32, u32), f32>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `calculate_similarity` is never used
[INFO] [stdout]   --> src/algorithms/collaborative.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl UserBasedCF {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn calculate_similarity(&self, user1: u32, user2: u32) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "23ba34d814b55f9c2da3f82ac75c16855f6eb780cef6a4de3a19f1f868bd67b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23ba34d814b55f9c2da3f82ac75c16855f6eb780cef6a4de3a19f1f868bd67b3", kill_on_drop: false }`
[INFO] [stdout] 23ba34d814b55f9c2da3f82ac75c16855f6eb780cef6a4de3a19f1f868bd67b3
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b7dce59beea444ea669dc93a23ed9674ac75d9a439fa1c5364359682bcde0a5b
[INFO] running `Command { std: "docker" "start" "-a" "b7dce59beea444ea669dc93a23ed9674ac75d9a439fa1c5364359682bcde0a5b", kill_on_drop: false }`
[INFO] [stderr] warning: struct `User` is never constructed
[INFO] [stderr]   --> src/models/user_item.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct User {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `user_similarities` is never read
[INFO] [stderr]   --> src/algorithms/collaborative.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct UserBasedCF {
[INFO] [stderr]    |            ----------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 20 |     user_similarities: HashMap<(u32, u32), f32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `calculate_similarity` is never used
[INFO] [stderr]   --> src/algorithms/collaborative.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl UserBasedCF {
[INFO] [stderr]    | ---------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 33 |     fn calculate_similarity(&self, user1: u32, user2: u32) -> f32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-rec` (bin "rust-rec" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_rec-c80f28e82955abe8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b7dce59beea444ea669dc93a23ed9674ac75d9a439fa1c5364359682bcde0a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7dce59beea444ea669dc93a23ed9674ac75d9a439fa1c5364359682bcde0a5b", kill_on_drop: false }`
[INFO] [stdout] b7dce59beea444ea669dc93a23ed9674ac75d9a439fa1c5364359682bcde0a5b
