[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] checking akshita-as02/rust-practice against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakshita-as02%2Frust-practice" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/akshita-as02/rust-practice on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6672df6c3525dd15d61347cd4384b67d5a98f93107d2359c5aefabe0d5b8a51e
[INFO] running `Command { std: "docker" "start" "-a" "6672df6c3525dd15d61347cd4384b67d5a98f93107d2359c5aefabe0d5b8a51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6672df6c3525dd15d61347cd4384b67d5a98f93107d2359c5aefabe0d5b8a51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6672df6c3525dd15d61347cd4384b67d5a98f93107d2359c5aefabe0d5b8a51e", kill_on_drop: false }`
[INFO] [stdout] 6672df6c3525dd15d61347cd4384b67d5a98f93107d2359c5aefabe0d5b8a51e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21d9a44805010a4d6f5847a97324558f3f57e8346dd6c29cce3d9faef717744e
[INFO] running `Command { std: "docker" "start" "-a" "21d9a44805010a4d6f5847a97324558f3f57e8346dd6c29cce3d9faef717744e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]    Compiling cc v1.2.23
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]     Checking miniz_oxide v0.8.8
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling portable-atomic v1.11.0
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking clap_builder v4.5.38
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking colored v3.0.0
[INFO] [stderr]     Checking similar v2.7.0
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking humantime v2.2.0
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking rand v0.9.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking flate2 v1.1.1
[INFO] [stderr]    Compiling actix-router v0.5.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking tokio v1.45.0
[INFO] [stderr]     Checking indicatif v0.17.11
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking actix-rt v2.10.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling actix-web-codegen v4.3.0
[INFO] [stderr]    Compiling actix-macros v0.2.4
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking clap v4.5.38
[INFO] [stderr]     Checking zerovec v0.11.2
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking h2 v0.4.10
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking actix-codec v0.5.2
[INFO] [stderr]     Checking actix-server v2.6.0
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.2
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.0
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking actix-http v3.11.0
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking hyper-util v0.1.11
[INFO] [stderr]     Checking assert-json-diff v2.0.2
[INFO] [stderr]     Checking mockito v1.7.0
[INFO] [stderr]     Checking actix-web v4.11.0
[INFO] [stderr]     Checking 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] [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 38.42s
[INFO] running `Command { std: "docker" "inspect" "21d9a44805010a4d6f5847a97324558f3f57e8346dd6c29cce3d9faef717744e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21d9a44805010a4d6f5847a97324558f3f57e8346dd6c29cce3d9faef717744e", kill_on_drop: false }`
[INFO] [stdout] 21d9a44805010a4d6f5847a97324558f3f57e8346dd6c29cce3d9faef717744e