[INFO] updating cached repository https://github.com/ShadowLightMan/bayes-classifier-in-rust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] af9a714350375e1c7698f3fb086d537e671705c9 [INFO] checking ShadowLightMan/bayes-classifier-in-rust against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShadowLightMan%2Fbayes-classifier-in-rust" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] [stderr] Checking out files: 87% (14/16) Checking out files: 93% (15/16) Checking out files: 100% (16/16) Checking out files: 100% (16/16), done. [INFO] validating manifest of git repo https://github.com/ShadowLightMan/bayes-classifier-in-rust on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ShadowLightMan/bayes-classifier-in-rust [INFO] finished tweaking git repo https://github.com/ShadowLightMan/bayes-classifier-in-rust [INFO] tweaked toml for git repo https://github.com/ShadowLightMan/bayes-classifier-in-rust written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/ShadowLightMan/bayes-classifier-in-rust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4451267721fc6b2748629c06793824597d7a8a229c4750c14eefa43a1cbd8a51 [INFO] running `"docker" "start" "-a" "4451267721fc6b2748629c06793824597d7a8a229c4750c14eefa43a1cbd8a51"` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling serde v1.0.102 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex-automata v0.1.8 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking csv-core v0.1.6 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking bstr v0.2.8 [INFO] [stderr] Checking csv v1.1.1 [INFO] [stderr] Checking bayes-classifier-in-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::collections::hash_map::RandomState` [INFO] [stderr] --> src/train.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::collections::hash_map::RandomState; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `class_name` [INFO] [stderr] --> src/classify.rs:108:10 [INFO] [stderr] | [INFO] [stderr] 108 | for (class_name, reviews_count) in review_count_by_class.iter().enumerate() { [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_class_name` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `class` [INFO] [stderr] --> src/train.rs:25:10 [INFO] [stderr] | [INFO] [stderr] 25 | for (class, reviews) in joined_reviews.iter().enumerate() { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_class` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/classify.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | let mut posterior_probability = compute_posterior_probability(&review_count_by_class, overall_reviews_count); // P(c) = |Dc|/|D| [INFO] [stderr] | ----^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/classify.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | let mut prior_probability = compute_prior_probability( [INFO] [stderr] | ----^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/classify.rs:144:9 [INFO] [stderr] | [INFO] [stderr] 144 | let mut max_value = v.iter().fold(v[0], |mut max, &val| { [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/train.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let mut classes = read_reviews(content_dir).unwrap(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | train::train(&args[2]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | classify::classify(&args[2], &args[3]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | writer.write_record(&["class", "word", "count"]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::hash_map::RandomState` [INFO] [stderr] --> src/train.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::collections::hash_map::RandomState; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:41:13 [INFO] [stderr] | [INFO] [stderr] 41 | writer.write_record(&[&class_name.to_string(), &word, &occurrences.to_string()]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | writer.write_record(&["class", "count"]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | writer.write_record(&[&class_name.to_string(), &count.to_string()]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:67:5 [INFO] [stderr] | [INFO] [stderr] 67 | writer.write_record(&["class", "count"]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:70:9 [INFO] [stderr] | [INFO] [stderr] 70 | writer.write_record(&[&class_name.to_string(), &class_reviews.len().to_string()]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 15 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `class_name` [INFO] [stderr] --> src/classify.rs:108:10 [INFO] [stderr] | [INFO] [stderr] 108 | for (class_name, reviews_count) in review_count_by_class.iter().enumerate() { [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_class_name` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `class` [INFO] [stderr] --> src/train.rs:25:10 [INFO] [stderr] | [INFO] [stderr] 25 | for (class, reviews) in joined_reviews.iter().enumerate() { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_class` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/classify.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | let mut posterior_probability = compute_posterior_probability(&review_count_by_class, overall_reviews_count); // P(c) = |Dc|/|D| [INFO] [stderr] | ----^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/classify.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | let mut prior_probability = compute_prior_probability( [INFO] [stderr] | ----^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/classify.rs:144:9 [INFO] [stderr] | [INFO] [stderr] 144 | let mut max_value = v.iter().fold(v[0], |mut max, &val| { [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/train.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let mut classes = read_reviews(content_dir).unwrap(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | train::train(&args[2]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | classify::classify(&args[2], &args[3]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | writer.write_record(&["class", "word", "count"]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:41:13 [INFO] [stderr] | [INFO] [stderr] 41 | writer.write_record(&[&class_name.to_string(), &word, &occurrences.to_string()]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | writer.write_record(&["class", "count"]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | writer.write_record(&[&class_name.to_string(), &count.to_string()]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:67:5 [INFO] [stderr] | [INFO] [stderr] 67 | writer.write_record(&["class", "count"]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/train.rs:70:9 [INFO] [stderr] | [INFO] [stderr] 70 | writer.write_record(&[&class_name.to_string(), &class_reviews.len().to_string()]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 15 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [optimized + debuginfo] target(s) in 24.80s [INFO] running `"docker" "inspect" "4451267721fc6b2748629c06793824597d7a8a229c4750c14eefa43a1cbd8a51"` [INFO] running `"docker" "rm" "-f" "4451267721fc6b2748629c06793824597d7a8a229c4750c14eefa43a1cbd8a51"` [INFO] [stdout] 4451267721fc6b2748629c06793824597d7a8a229c4750c14eefa43a1cbd8a51