[INFO] cloning repository https://github.com/KaytchJam/FEH_Unit_Comparisons
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KaytchJam/FEH_Unit_Comparisons" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaytchJam%2FFEH_Unit_Comparisons", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaytchJam%2FFEH_Unit_Comparisons'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bc2e403c92843cf74c91ff2d56e32d729f21ff4
[INFO] checking KaytchJam/FEH_Unit_Comparisons against a621e2b446eafb53c7a8569f225e0b8cc2429a68 for pr-162600
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaytchJam%2FFEH_Unit_Comparisons" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KaytchJam/FEH_Unit_Comparisons
[INFO] finished tweaking git repo https://github.com/KaytchJam/FEH_Unit_Comparisons
[INFO] tweaked toml for git repo https://github.com/KaytchJam/FEH_Unit_Comparisons written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KaytchJam/FEH_Unit_Comparisons on toolchain a621e2b446eafb53c7a8569f225e0b8cc2429a68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KaytchJam/FEH_Unit_Comparisons 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" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `relearning_stats` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-0-tc2/source/target/.../relearning_stats
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `relearning-stats`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 - name = "relearning_stats"
[INFO] [stderr] 19 + name = "relearning-stats"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `relearning-stats`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:20:19
[INFO] [stderr]    |
[INFO] [stderr] 20 ~ version = "0.1.0"
[INFO] [stderr] 21 + [[bin]]
[INFO] [stderr] 22 + name = "relearning-stats"
[INFO] [stderr] 23 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `relearning_stats` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded security-framework-sys v2.10.0
[INFO] [stderr]   Downloaded security-framework v2.10.0
[INFO] [stderr]   Downloaded smallvec v1.13.1
[INFO] [stderr]   Downloaded cc v1.0.94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c38476ea0efb8918947f88dc5caf3ece15050618b0302b314ef4b09bb8907470
[INFO] running `Command { std: "docker" "start" "c38476ea0efb8918947f88dc5caf3ece15050618b0302b314ef4b09bb8907470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c38476ea0efb8918947f88dc5caf3ece15050618b0302b314ef4b09bb8907470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c38476ea0efb8918947f88dc5caf3ece15050618b0302b314ef4b09bb8907470" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c38476ea0efb8918947f88dc5caf3ece15050618b0302b314ef4b09bb8907470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c38476ea0efb8918947f88dc5caf3ece15050618b0302b314ef4b09bb8907470" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `relearning_stats` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../relearning_stats
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `relearning-stats`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 - name = "relearning_stats"
[INFO] [stderr] 19 + name = "relearning-stats"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `relearning-stats`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:20:19
[INFO] [stderr]    |
[INFO] [stderr] 20 ~ version = "0.1.0"
[INFO] [stderr] 21 + [[bin]]
[INFO] [stderr] 22 + name = "relearning-stats"
[INFO] [stderr] 23 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `relearning_stats` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling cc v1.0.94
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]    Compiling serde v1.0.197
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[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking tracing-core v0.1.32
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[INFO] [stderr]     Checking futures-util v0.3.30
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[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.30
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[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking encoding_rs v0.8.34
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking relearning_stats v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/utils/stats_structs/vec_f.rs:76:27
[INFO] [stdout]    |
[INFO] [stdout] 76 |       .map(|index: usize| (self.data[index] * other.data[index]))
[INFO] [stdout]    |                           ^                                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 76 -       .map(|index: usize| (self.data[index] * other.data[index]))
[INFO] [stdout] 76 +       .map(|index: usize| self.data[index] * other.data[index])
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/utils/stats_structs/vec_f.rs:76:27
[INFO] [stdout]    |
[INFO] [stdout] 76 |       .map(|index: usize| (self.data[index] * other.data[index]))
[INFO] [stdout]    |                           ^                                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 76 -       .map(|index: usize| (self.data[index] * other.data[index]))
[INFO] [stdout] 76 +       .map(|index: usize| self.data[index] * other.data[index])
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `from_index` and `iter` are never used
[INFO] [stdout]    --> src/utils/feh_structs.rs:166:10
[INFO] [stdout]     |
[INFO] [stdout] 157 | impl DistanceMetric {
[INFO] [stdout]     | ------------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 166 |   pub fn from_index(index: usize) -> DistanceMetric {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |   pub fn iter() -> core::slice::Iter<'static, DistanceMetric> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_center_of_mass` is never used
[INFO] [stdout]    --> src/utils/feh_structs.rs:253:8
[INFO] [stdout]     |
[INFO] [stdout] 253 | pub fn get_center_of_mass(all_units: &HashMap<String, FehUnit>) -> VecF {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]    --> src/utils/feh_structs.rs:290:8
[INFO] [stdout]     |
[INFO] [stdout] 290 | struct Matrix<T> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/utils/feh_structs.rs:297:6
[INFO] [stdout]     |
[INFO] [stdout] 296 | impl<T> Matrix<T> {
[INFO] [stdout]     | ----------------- associated function in this implementation
[INFO] [stdout] 297 |   fn new(rows: usize, cols: usize, data: Vec<T>) -> Self {
[INFO] [stdout]     |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FehJson` is never constructed
[INFO] [stdout]   --> src/feh_json.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct FehJson {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_stats` is never used
[INFO] [stdout]   --> src/feh_json.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn get_stats(fj: FehJson) -> VecF {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `str_to_f32` is never used
[INFO] [stdout]   --> src/feh_json.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn str_to_f32(vof64: Vec<String>) -> Vec<f32> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_data` is never used
[INFO] [stdout]   --> src/feh_json.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn extract_data(data: &str) -> serde_json::Result<HashMap<String,FehUnit>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_unit_dataset` is never used
[INFO] [stdout]    --> src/feh_json.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub fn create_unit_dataset() -> HashMap<String, FehUnit> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/stats_structs/vec_f.rs:140:15
[INFO] [stdout]     |
[INFO] [stdout] 140 |   pub fn iter(&self) -> std::slice::Iter<f32>{
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 140 |   pub fn iter(&self) -> std::slice::Iter<'_, f32>{
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/stats_structs/vec_f.rs:145:19
[INFO] [stdout]     |
[INFO] [stdout] 145 |   pub fn iter_mut(&mut self) -> std::slice::IterMut<f32> {
[INFO] [stdout]     |                   ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 145 |   pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, f32> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `from_index` and `iter` are never used
[INFO] [stdout]    --> src/utils/feh_structs.rs:166:10
[INFO] [stdout]     |
[INFO] [stdout] 157 | impl DistanceMetric {
[INFO] [stdout]     | ------------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 166 |   pub fn from_index(index: usize) -> DistanceMetric {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |   pub fn iter() -> core::slice::Iter<'static, DistanceMetric> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_center_of_mass` is never used
[INFO] [stdout]    --> src/utils/feh_structs.rs:253:8
[INFO] [stdout]     |
[INFO] [stdout] 253 | pub fn get_center_of_mass(all_units: &HashMap<String, FehUnit>) -> VecF {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FehJson` is never constructed
[INFO] [stdout]   --> src/feh_json.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct FehJson {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_stats` is never used
[INFO] [stdout]   --> src/feh_json.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn get_stats(fj: FehJson) -> VecF {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `str_to_f32` is never used
[INFO] [stdout]   --> src/feh_json.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn str_to_f32(vof64: Vec<String>) -> Vec<f32> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_data` is never used
[INFO] [stdout]   --> src/feh_json.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn extract_data(data: &str) -> serde_json::Result<HashMap<String,FehUnit>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_unit_dataset` is never used
[INFO] [stdout]    --> src/feh_json.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub fn create_unit_dataset() -> HashMap<String, FehUnit> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/stats_structs/vec_f.rs:140:15
[INFO] [stdout]     |
[INFO] [stdout] 140 |   pub fn iter(&self) -> std::slice::Iter<f32>{
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 140 |   pub fn iter(&self) -> std::slice::Iter<'_, f32>{
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/stats_structs/vec_f.rs:145:19
[INFO] [stdout]     |
[INFO] [stdout] 145 |   pub fn iter_mut(&mut self) -> std::slice::IterMut<f32> {
[INFO] [stdout]     |                   ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 145 |   pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, f32> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `rand`
[INFO] [stderr]  --> Cargo.toml:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | rand = "0.8.5"
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `rand`
[INFO] [stderr] warning: `relearning_stats` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.06s
[INFO] running `Command { std: "docker" "inspect" "c38476ea0efb8918947f88dc5caf3ece15050618b0302b314ef4b09bb8907470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c38476ea0efb8918947f88dc5caf3ece15050618b0302b314ef4b09bb8907470", kill_on_drop: false }`
[INFO] [stdout] c38476ea0efb8918947f88dc5caf3ece15050618b0302b314ef4b09bb8907470
