[INFO] fetching crate rust-prelude-plus 0.1.0...
[INFO] testing rust-prelude-plus-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rust-prelude-plus 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rust-prelude-plus 0.1.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rust-prelude-plus 0.1.0
[INFO] tweaked toml for crates.io crate rust-prelude-plus 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-prelude-plus 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust-prelude-plus 0.1.0 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 1c4b45e88f3f5cc0eaee954f2e564eeb1984e10890aca8b9e8892ab691ae1e8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea7df250c754395fb3409e2de43c3046eb0fe56c2ce43a8d2756cdea254d3b98
[INFO] running `Command { std: "docker" "start" "-a" "ea7df250c754395fb3409e2de43c3046eb0fe56c2ce43a8d2756cdea254d3b98", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.107
[INFO] [stderr]    Compiling key-paths-core v1.0.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling key-paths-derive v0.8.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling rust-prelude-plus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.60s
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[INFO] running `Command { std: "docker" "rm" "-f" "ea7df250c754395fb3409e2de43c3046eb0fe56c2ce43a8d2756cdea254d3b98", kill_on_drop: false }`
[INFO] [stdout] ea7df250c754395fb3409e2de43c3046eb0fe56c2ce43a8d2756cdea254d3b98
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[INFO] [stdout] d146423238208ca731c3e63d09ab418b48eb3cc8ec38dabcabc02c1687a261f2
[INFO] running `Command { std: "docker" "start" "-a" "d146423238208ca731c3e63d09ab418b48eb3cc8ec38dabcabc02c1687a261f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.107
[INFO] [stderr]    Compiling clap_lex v0.7.6
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling clap_builder v4.5.49
[INFO] [stderr]    Compiling clap v4.5.49
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling key-paths-derive v0.8.0
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling tokio-test v0.4.4
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling rust-prelude-plus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `rayon`
[INFO] [stdout]  --> examples/parallel_examples.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^ use of unresolved module or unlinked crate `rayon`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rayon`, use `cargo add rayon` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `rayon`
[INFO] [stdout]  --> examples/optimized_performance_comparison.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^ use of unresolved module or unlinked crate `rayon`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rayon`, use `cargo add rayon` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rust_prelude_plus::parallel::parallel_collections`
[INFO] [stdout]   --> examples/parallel_examples.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | use rust_prelude_plus::parallel::parallel_collections;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `parallel_collections` in `parallel`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/parallel.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg(feature = "parallel")]
[INFO] [stdout]    |       -------------------- the item is gated behind the `parallel` feature
[INFO] [stdout] 12 | /// Parallel keypath operations for collections
[INFO] [stdout] 13 | pub mod parallel_collections {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rust_prelude_plus::async_ops::async_collections`
[INFO] [stdout]   --> examples/async_examples.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | use rust_prelude_plus::async_ops::async_collections;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `async_collections` in `async_ops`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/async_ops.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(feature = "async")]
[INFO] [stdout]    |       ----------------- the item is gated behind the `r#async` feature
[INFO] [stdout] 11 | /// Asynchronous keypath operations for collections
[INFO] [stdout] 12 | pub mod async_collections {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]   --> examples/async_examples.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[tokio::main]
[INFO] [stdout]    |   ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `parallel_pools` in `parallel`
[INFO] [stdout]    --> examples/parallel_examples.rs:210:40
[INFO] [stdout]     |
[INFO] [stdout] 210 |     match rust_prelude_plus::parallel::parallel_pools::create_keypath_thread_pool(2) {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^ could not find `parallel_pools` in `parallel`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/parallel.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 181 | #[cfg(feature = "parallel")]
[INFO] [stdout]     |       -------------------- the item is gated behind the `parallel` feature
[INFO] [stdout] 182 | /// Parallel keypath operations with custom thread pools
[INFO] [stdout] 183 | pub mod parallel_pools {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `parallel_pools` in `parallel`
[INFO] [stdout]    --> examples/parallel_examples.rs:215:48
[INFO] [stdout]     |
[INFO] [stdout] 215 |             match rust_prelude_plus::parallel::parallel_pools::execute_on_pool(
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^ could not find `parallel_pools` in `parallel`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/parallel.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 181 | #[cfg(feature = "parallel")]
[INFO] [stdout]     |       -------------------- the item is gated behind the `parallel` feature
[INFO] [stdout] 182 | /// Parallel keypath operations with custom thread pools
[INFO] [stdout] 183 | pub mod parallel_pools {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `parallel_pools` in `parallel`
[INFO] [stdout]    --> examples/parallel_examples.rs:226:48
[INFO] [stdout]     |
[INFO] [stdout] 226 |             match rust_prelude_plus::parallel::parallel_pools::filter_on_pool(
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^ could not find `parallel_pools` in `parallel`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/workdir/src/parallel.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 181 | #[cfg(feature = "parallel")]
[INFO] [stdout]     |       -------------------- the item is gated behind the `parallel` feature
[INFO] [stdout] 182 | /// Parallel keypath operations with custom thread pools
[INFO] [stdout] 183 | pub mod parallel_pools {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `group_products_by_category` is never used
[INFO] [stdout]   --> tests/testability_tests.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn group_products_by_category(products: &[Product]) -> KeyPathResult<HashMap<String, Vec<Product>>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/async_examples.rs:123:64
[INFO] [stdout]     |
[INFO] [stdout] 123 |         Ok(active_users) => println!("Active users count: {}", active_users.len()),
[INFO] [stdout]     |                                                                ^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/async_examples.rs:171:10
[INFO] [stdout]     |
[INFO] [stdout] 171 |         |email| !email.is_empty(),
[INFO] [stdout]     |          ^^^^^   ----- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 171 |         |email: /* Type */| !email.is_empty(),
[INFO] [stdout]     |               ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/async_examples.rs:201:70
[INFO] [stdout]     |
[INFO] [stdout] 201 |         Ok(published_posts) => println!("Published posts count: {}", published_posts.len()),
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/async_examples.rs:212:49
[INFO] [stdout]     |
[INFO] [stdout] 212 |             println!("Popular posts count: {}", popular_posts.len());
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/parallel_examples.rs:121:10
[INFO] [stdout]     |
[INFO] [stdout] 121 |         |name| name.clone(),
[INFO] [stdout]     |          ^^^^  ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 121 |         |name: /* Type */| name.clone(),
[INFO] [stdout]     |              ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/parallel_examples.rs:133:67
[INFO] [stdout]     |
[INFO] [stdout] 133 |         Ok(expensive) => println!("Expensive products count: {}", expensive.len()),
[INFO] [stdout]     |                                                                   ^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> examples/async_examples.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | async fn main() {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `par_iter` found for reference `&[Employee]` in the current scope
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:114:10
[INFO] [stdout]     |
[INFO] [stdout] 113 |       let parallel_result: Vec<f64> = employees
[INFO] [stdout]     |  _____________________________________-
[INFO] [stdout] 114 | |         .par_iter()
[INFO] [stdout]     | |_________-^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `iter` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 114 -         .par_iter()
[INFO] [stdout] 114 +         .iter()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433, E0752.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `into_par_iter` found for struct `Vec<Product>` in the current scope
[INFO] [stdout]    --> examples/parallel_examples.rs:196:10
[INFO] [stdout]     |
[INFO] [stdout] 195 |       let (in_stock, out_of_stock): (Vec<Product>, Vec<Product>) = products_owned
[INFO] [stdout]     |  __________________________________________________________________-
[INFO] [stdout] 196 | |         .into_par_iter()
[INFO] [stdout]     | |_________-^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rayon-1.11.0/src/iter/mod.rs:248:8
[INFO] [stdout]     |
[INFO] [stdout] 248 |       fn into_par_iter(self) -> Self::Iter;
[INFO] [stdout]     |          ------------- the method is available for `Vec<Product>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `IntoParallelIterator` which provides `into_par_iter` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   3 + use rayon::iter::IntoParallelIterator;
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `into_iter` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 196 -         .into_par_iter()
[INFO] [stdout] 196 +         .into_iter()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-prelude-plus` (example "async_examples") due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/parallel_examples.rs:219:18
[INFO] [stdout]     |
[INFO] [stdout] 219 |                 |name| name.len(),
[INFO] [stdout]     |                  ^^^^  ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 219 |                 |name: /* Type */| name.len(),
[INFO] [stdout]     |                      ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/parallel_examples.rs:232:70
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 Ok(filtered) => println!("Products > $50: {} items", filtered.len()),
[INFO] [stdout]     |                                                                      ^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `par_iter` found for reference `&[Employee]` in the current scope
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:182:10
[INFO] [stdout]     |
[INFO] [stdout] 181 |       let parallel_result: Vec<&Employee> = employees
[INFO] [stdout]     |  ___________________________________________-
[INFO] [stdout] 182 | |         .par_iter()
[INFO] [stdout]     | |_________-^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `iter` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 182 -         .par_iter()
[INFO] [stdout] 182 +         .iter()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/parallel_examples.rs:274:26
[INFO] [stdout]     |
[INFO] [stdout] 274 |                         |name| name.clone(),
[INFO] [stdout]     |                          ^^^^  ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 274 |                         |name: /* Type */| name.clone(),
[INFO] [stdout]     |                              ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `par_iter` found for reference `&[Employee]` in the current scope
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:233:43
[INFO] [stdout]     |
[INFO] [stdout] 233 |         let total_salary: f64 = employees.par_iter().map(|emp| emp.salary).sum();
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `iter` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 233 -         let total_salary: f64 = employees.par_iter().map(|emp| emp.salary).sum();
[INFO] [stdout] 233 +         let total_salary: f64 = employees.iter().map(|emp| emp.salary).sum();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `par_iter` found for reference `&[Employee]` in the current scope
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:235:36
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let max_salary = employees.par_iter().map(|emp| emp.salary).max_by(|a, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout]     |                                    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `iter` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 235 -         let max_salary = employees.par_iter().map(|emp| emp.salary).max_by(|a, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout] 235 +         let max_salary = employees.iter().map(|emp| emp.salary).max_by(|a, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:235:77
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let max_salary = employees.par_iter().map(|emp| emp.salary).max_by(|a, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout]     |                                                                             ^     - type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let max_salary = employees.par_iter().map(|emp| emp.salary).max_by(|a: /* Type */, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout]     |                                                                              ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `par_iter` found for reference `&[Employee]` in the current scope
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:236:36
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let min_salary = employees.par_iter().map(|emp| emp.salary).min_by(|a, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout]     |                                    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `iter` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 236 -         let min_salary = employees.par_iter().map(|emp| emp.salary).min_by(|a, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout] 236 +         let min_salary = employees.iter().map(|emp| emp.salary).min_by(|a, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:236:77
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let min_salary = employees.par_iter().map(|emp| emp.salary).min_by(|a, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout]     |                                                                             ^     - type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 236 |         let min_salary = employees.par_iter().map(|emp| emp.salary).min_by(|a: /* Type */, b| a.partial_cmp(b).unwrap()).unwrap();
[INFO] [stdout]     |                                                                              ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `par_iter` found for reference `&[Employee]` in the current scope
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:237:38
[INFO] [stdout]     |
[INFO] [stdout] 237 |         let active_count = employees.par_iter().filter(|emp| emp.is_active).count();
[INFO] [stdout]     |                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `iter` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 237 -         let active_count = employees.par_iter().filter(|emp| emp.is_active).count();
[INFO] [stdout] 237 +         let active_count = employees.iter().filter(|emp| emp.is_active).count();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `par_iter` found for reference `&[Employee]` in the current scope
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:238:43
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let engineering_count = employees.par_iter().filter(|emp| emp.department == "Engineering").count();
[INFO] [stdout]     |                                           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `iter` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 238 -         let engineering_count = employees.par_iter().filter(|emp| emp.department == "Engineering").count();
[INFO] [stdout] 238 +         let engineering_count = employees.iter().filter(|emp| emp.department == "Engineering").count();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `par_sort_by` found for struct `Vec<Employee>` in the current scope
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:284:21
[INFO] [stdout]     |
[INFO] [stdout] 284 |     parallel_sorted.par_sort_by(|a, b| {
[INFO] [stdout]     |     ----------------^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `sort_by` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 284 -     parallel_sorted.par_sort_by(|a, b| {
[INFO] [stdout] 284 +     parallel_sorted.sort_by(|a, b| {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `par_iter` found for struct `Vec<Employee>` in the current scope
[INFO] [stdout]    --> examples/optimized_performance_comparison.rs:329:10
[INFO] [stdout]     |
[INFO] [stdout] 328 |       let parallel_result: Vec<String> = employees
[INFO] [stdout]     |  ________________________________________-
[INFO] [stdout] 329 | |         .par_iter()
[INFO] [stdout]     | |_________-^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `iter` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 329 -         .par_iter()
[INFO] [stdout] 329 +         .iter()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-prelude-plus` (example "optimized_performance_comparison") due to 12 previous errors
[INFO] [stderr] error: could not compile `rust-prelude-plus` (example "parallel_examples") due to 11 previous errors
[INFO] running `Command { std: "docker" "inspect" "d146423238208ca731c3e63d09ab418b48eb3cc8ec38dabcabc02c1687a261f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d146423238208ca731c3e63d09ab418b48eb3cc8ec38dabcabc02c1687a261f2", kill_on_drop: false }`
[INFO] [stdout] d146423238208ca731c3e63d09ab418b48eb3cc8ec38dabcabc02c1687a261f2
