[INFO] cloning repository https://github.com/BoiseState/bookdata-tools
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BoiseState/bookdata-tools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBoiseState%2Fbookdata-tools", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBoiseState%2Fbookdata-tools'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 616c80c5b299ecaf3e14e4077bb79c59b490963f
[INFO] checking BoiseState/bookdata-tools against master#2aaa62b89d22b570e560731b03e3d2d6f5c3bbce for pr-139751-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBoiseState%2Fbookdata-tools" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BoiseState/bookdata-tools
[INFO] finished tweaking git repo https://github.com/BoiseState/bookdata-tools
[INFO] tweaked toml for git repo https://github.com/BoiseState/bookdata-tools written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BoiseState/bookdata-tools on toolchain 2aaa62b89d22b570e560731b03e3d2d6f5c3bbce
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2aaa62b89d22b570e560731b03e3d2d6f5c3bbce" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BoiseState/bookdata-tools 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" "+2aaa62b89d22b570e560731b03e3d2d6f5c3bbce" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+2aaa62b89d22b570e560731b03e3d2d6f5c3bbce" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7adc48ae3153a206886de729a9a734b93c2eeb47ce686295dd43aee804df850b
[INFO] running `Command { std: "docker" "start" "-a" "7adc48ae3153a206886de729a9a734b93c2eeb47ce686295dd43aee804df850b", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+2aaa62b89d22b570e560731b03e3d2d6f5c3bbce" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ad0c99d1ff563c4ad4da9bbf483694afbea8838fc08cee02c8390f8ce3724bf
[INFO] running `Command { std: "docker" "start" "-a" "3ad0c99d1ff563c4ad4da9bbf483694afbea8838fc08cee02c8390f8ce3724bf", kill_on_drop: false }`
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[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]   --> src/parsing/dates.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 |         date.timestamp() as f32
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]   --> src/parsing/dates.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 |         date.timestamp() as f32
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]   --> src/cli/kcore.rs:71:61
[INFO] [stdout]    |
[INFO] [stdout] 71 |             let start = start.and_hms_opt(0, 0, 0).unwrap().timestamp();
[INFO] [stdout]    |                                                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]   --> src/cli/kcore.rs:80:57
[INFO] [stdout]    |
[INFO] [stdout] 80 |             let end = end.and_hms_opt(0, 0, 0).unwrap().timestamp();
[INFO] [stdout]    |                                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]   --> src/cli/kcore.rs:71:61
[INFO] [stdout]    |
[INFO] [stdout] 71 |             let start = start.and_hms_opt(0, 0, 0).unwrap().timestamp();
[INFO] [stdout]    |                                                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]   --> src/cli/kcore.rs:80:57
[INFO] [stdout]    |
[INFO] [stdout] 80 |             let end = end.and_hms_opt(0, 0, 0).unwrap().timestamp();
[INFO] [stdout]    |                                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `read_at` and `started_at` are never read
[INFO] [stdout]   --> src/goodreads/review.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct RawReview {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub read_at: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 29 |     pub started_at: String,
[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 `original_publication_day` is never read
[INFO] [stdout]   --> src/goodreads/work.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct RawWork {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub original_publication_day: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_name` is never read
[INFO] [stdout]   --> src/ids/codes.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct NS<'a> {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn_name: &'a str,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Interaction` is never used
[INFO] [stdout]   --> src/interactions/mod.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Interaction {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Dedup` is never used
[INFO] [stdout]   --> src/interactions/mod.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait Dedup<I: Interaction> {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Key` is never constructed
[INFO] [stdout]   --> src/interactions/mod.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Key {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/interactions/mod.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Key {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 37 |     fn new(user: i32, item: i32) -> Key {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ActionInstance` is never constructed
[INFO] [stdout]   --> src/interactions/actions.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ActionInstance {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FromActionSet` is never used
[INFO] [stdout]   --> src/interactions/actions.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait FromActionSet {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ActionDedup` is never constructed
[INFO] [stdout]   --> src/interactions/actions.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct ActionDedup<R>
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `record` and `write_actions` are never used
[INFO] [stdout]    --> src/interactions/actions.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 137 | / impl<R> ActionDedup<R>
[INFO] [stdout] 138 | | where
[INFO] [stdout] 139 | |     R: FromActionSet + Send + Sync + 'static,
[INFO] [stdout] 140 | |     for<'a> &'a [R]: RecordWriter<R>,
[INFO] [stdout]     | |_____________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 143 |       pub fn record(&mut self, user: i32, item: i32, timestamp: i64, rating: Option<f32>) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |       pub fn write_actions<P: AsRef<Path>>(&mut self, path: P) -> Result<usize> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FromRatingSet` is never used
[INFO] [stdout]   --> src/interactions/ratings.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait FromRatingSet {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RatingDedup` is never constructed
[INFO] [stdout]    --> src/interactions/ratings.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub struct RatingDedup<R>
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `record` and `write_ratings` are never used
[INFO] [stdout]    --> src/interactions/ratings.rs:168:12
[INFO] [stdout]     |
[INFO] [stdout] 162 | / impl<R> RatingDedup<R>
[INFO] [stdout] 163 | | where
[INFO] [stdout] 164 | |     R: FromRatingSet + Send + Sync + 'static,
[INFO] [stdout] 165 | |     for<'a> &'a [R]: RecordWriter<R>,
[INFO] [stdout]     | |_____________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 168 |       pub fn record(&mut self, user: i32, item: i32, rating: f32, timestamp: i64) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |       pub fn write_ratings<P: AsRef<Path>>(&mut self, path: P) -> Result<usize> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `input_files` is never used
[INFO] [stdout]   --> src/io/mod.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait DataSink {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn input_files(&self) -> Vec<PathBuf> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write_and_finish` and `with_transform` are never used
[INFO] [stdout]   --> src/io/object/mod.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait ObjectWriter<T>: Sized {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn write_and_finish<I>(mut self, objects: I) -> Result<usize>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn with_transform<F, T2>(self, transform: F) -> MapWriter<F, T2, T, Self>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapWriter` is never constructed
[INFO] [stdout]  --> src/io/object/transform.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct MapWriter<F, T1, T2, W>
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `read_at` and `started_at` are never read
[INFO] [stdout]   --> src/goodreads/review.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct RawReview {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub read_at: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 29 |     pub started_at: String,
[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 `original_publication_day` is never read
[INFO] [stdout]   --> src/goodreads/work.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct RawWork {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub original_publication_day: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_name` is never read
[INFO] [stdout]   --> src/ids/codes.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct NS<'a> {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn_name: &'a str,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `load_standard` and `save_standard` are never used
[INFO] [stdout]    --> src/ids/index.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl IdIndex<String> {
[INFO] [stdout]     | -------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn load_standard<P: AsRef<Path>>(path: P) -> Result<IdIndex<String>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 195 |     pub fn save_standard<P: AsRef<Path>>(&self, path: P) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Interaction` is never used
[INFO] [stdout]   --> src/interactions/mod.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Interaction {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Dedup` is never used
[INFO] [stdout]   --> src/interactions/mod.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait Dedup<I: Interaction> {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Key` is never constructed
[INFO] [stdout]   --> src/interactions/mod.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Key {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/interactions/mod.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Key {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 37 |     fn new(user: i32, item: i32) -> Key {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ActionInstance` is never constructed
[INFO] [stdout]   --> src/interactions/actions.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ActionInstance {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FromActionSet` is never used
[INFO] [stdout]   --> src/interactions/actions.rs:43:11
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub trait FromActionSet {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ActionDedup` is never constructed
[INFO] [stdout]   --> src/interactions/actions.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct ActionDedup<R>
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `record` and `write_actions` are never used
[INFO] [stdout]    --> src/interactions/actions.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 137 | / impl<R> ActionDedup<R>
[INFO] [stdout] 138 | | where
[INFO] [stdout] 139 | |     R: FromActionSet + Send + Sync + 'static,
[INFO] [stdout] 140 | |     for<'a> &'a [R]: RecordWriter<R>,
[INFO] [stdout]     | |_____________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 143 |       pub fn record(&mut self, user: i32, item: i32, timestamp: i64, rating: Option<f32>) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |       pub fn write_actions<P: AsRef<Path>>(&mut self, path: P) -> Result<usize> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FromRatingSet` is never used
[INFO] [stdout]   --> src/interactions/ratings.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait FromRatingSet {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RatingDedup` is never constructed
[INFO] [stdout]    --> src/interactions/ratings.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub struct RatingDedup<R>
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `record` and `write_ratings` are never used
[INFO] [stdout]    --> src/interactions/ratings.rs:168:12
[INFO] [stdout]     |
[INFO] [stdout] 162 | / impl<R> RatingDedup<R>
[INFO] [stdout] 163 | | where
[INFO] [stdout] 164 | |     R: FromRatingSet + Send + Sync + 'static,
[INFO] [stdout] 165 | |     for<'a> &'a [R]: RecordWriter<R>,
[INFO] [stdout]     | |_____________________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 168 |       pub fn record(&mut self, user: i32, item: i32, rating: f32, timestamp: i64) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |       pub fn write_ratings<P: AsRef<Path>>(&mut self, path: P) -> Result<usize> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `input_files` is never used
[INFO] [stdout]   --> src/io/mod.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait DataSink {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn input_files(&self) -> Vec<PathBuf> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write_and_finish` and `with_transform` are never used
[INFO] [stdout]   --> src/io/object/mod.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait ObjectWriter<T>: Sized {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn write_and_finish<I>(mut self, objects: I) -> Result<usize>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn with_transform<F, T2>(self, transform: F) -> MapWriter<F, T2, T, Self>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapWriter` is never constructed
[INFO] [stdout]  --> src/io/object/transform.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct MapWriter<F, T1, T2, W>
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 03s
[INFO] running `Command { std: "docker" "inspect" "3ad0c99d1ff563c4ad4da9bbf483694afbea8838fc08cee02c8390f8ce3724bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad0c99d1ff563c4ad4da9bbf483694afbea8838fc08cee02c8390f8ce3724bf", kill_on_drop: false }`
[INFO] [stdout] 3ad0c99d1ff563c4ad4da9bbf483694afbea8838fc08cee02c8390f8ce3724bf
