[INFO] cloning repository https://github.com/erwinvaneijk/fbhash
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/erwinvaneijk/fbhash" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferwinvaneijk%2Ffbhash", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferwinvaneijk%2Ffbhash'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c85bda19f1a8501c28e119b2b35d85a4e13f9623
[INFO] checking erwinvaneijk/fbhash against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferwinvaneijk%2Ffbhash" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/erwinvaneijk/fbhash on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/erwinvaneijk/fbhash
[INFO] finished tweaking git repo https://github.com/erwinvaneijk/fbhash
[INFO] tweaked toml for git repo https://github.com/erwinvaneijk/fbhash written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/erwinvaneijk/fbhash already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47033513b217cb1028cd11688e3a6b9d2d26acec9527fdbd53ddd65b4fa4aa1a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "47033513b217cb1028cd11688e3a6b9d2d26acec9527fdbd53ddd65b4fa4aa1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47033513b217cb1028cd11688e3a6b9d2d26acec9527fdbd53ddd65b4fa4aa1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47033513b217cb1028cd11688e3a6b9d2d26acec9527fdbd53ddd65b4fa4aa1a", kill_on_drop: false }`
[INFO] [stdout] 47033513b217cb1028cd11688e3a6b9d2d26acec9527fdbd53ddd65b4fa4aa1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 13b301903bba40775f39a2af644905e874d2ca44196a8a07975f454b4f66ab95
[INFO] running `Command { std: "docker" "start" "-a" "13b301903bba40775f39a2af644905e874d2ca44196a8a07975f454b4f66ab95", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling priority-queue v1.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking pretty_assertions v0.7.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v2.1.1
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking frequency v1.0.1
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking frequency-hashmap v1.1.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_test v1.0.125
[INFO] [stderr]     Checking fbhash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `file_to_chunks`
[INFO] [stdout]   --> src/similarities.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn file_to_chunks(file: File) -> Vec<u64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_file_frequencies`
[INFO] [stdout]   --> src/similarities.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn compute_file_frequencies(file: File) -> HashMapFrequency<u64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_document_frequencies`
[INFO] [stdout]   --> src/similarities.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn compute_document_frequencies(doc: &[u64]) -> HashMapFrequency<&u64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_document_scores`
[INFO] [stdout]   --> src/similarities.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn compute_document_scores(file: File) -> HashMap<u64, f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_scores_from_frequencies`
[INFO] [stdout]   --> src/similarities.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn compute_scores_from_frequencies(freq_map: &HashMapFrequency<u64>) -> HashMap<u64, f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/similarities.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn new() -> DocumentCollection {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_file`
[INFO] [stdout]    --> src/similarities.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn add_file(&mut self, name: &str) -> io::Result<Option<Document>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `exists_file`
[INFO] [stdout]    --> src/similarities.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn exists_file(&self, name: &str) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_digest`
[INFO] [stdout]    --> src/similarities.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn compute_digest(&self, name: &str) -> io::Result<Vec<f64>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_chunk_weight`
[INFO] [stdout]    --> src/similarities.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn compute_chunk_weight(&self, chunk: u64, frequency: usize) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_document_digest`
[INFO] [stdout]    --> src/similarities.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 157 |     pub fn compute_document_digest(&self, doc: &[u64]) -> Vec<f64> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ranked_search`
[INFO] [stdout]    --> src/similarities.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn ranked_search<'a>(doc: &[f64], documents: &'a [Document], _: usize) -> Vec<&'a Document> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cosine_similarity`
[INFO] [stdout]    --> src/similarities.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 221 | pub fn cosine_similarity(vec1: &[f64], vec2: &[f64]) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_file_frequencies`
[INFO] [stdout]   --> src/similarities.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn compute_file_frequencies(file: File) -> HashMapFrequency<u64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_document_scores`
[INFO] [stdout]   --> src/similarities.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn compute_document_scores(file: File) -> HashMap<u64, f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_scores_from_frequencies`
[INFO] [stdout]   --> src/similarities.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn compute_scores_from_frequencies(freq_map: &HashMapFrequency<u64>) -> HashMap<u64, f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `exists_file`
[INFO] [stdout]    --> src/similarities.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn exists_file(&self, name: &str) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compute_digest`
[INFO] [stdout]    --> src/similarities.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn compute_digest(&self, name: &str) -> io::Result<Vec<f64>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ranked_search`
[INFO] [stdout]    --> src/similarities.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn ranked_search<'a>(doc: &[f64], documents: &'a [Document], _: usize) -> Vec<&'a Document> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cosine_similarity`
[INFO] [stdout]    --> src/similarities.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 221 | pub fn cosine_similarity(vec1: &[f64], vec2: &[f64]) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ranked_search`
[INFO] [stdout]    --> src/similarities.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn ranked_search<'a>(doc: &[f64], documents: &'a [Document], _: usize) -> Vec<&'a Document> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ranked_search`
[INFO] [stdout]    --> src/similarities.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn ranked_search<'a>(doc: &[f64], documents: &'a [Document], _: usize) -> Vec<&'a Document> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.92s
[INFO] running `Command { std: "docker" "inspect" "13b301903bba40775f39a2af644905e874d2ca44196a8a07975f454b4f66ab95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13b301903bba40775f39a2af644905e874d2ca44196a8a07975f454b4f66ab95", kill_on_drop: false }`
[INFO] [stdout] 13b301903bba40775f39a2af644905e874d2ca44196a8a07975f454b4f66ab95