[INFO] cloning repository https://github.com/ArhanChaudhary/generativity-pattern-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ArhanChaudhary/generativity-pattern-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArhanChaudhary%2Fgenerativity-pattern-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArhanChaudhary%2Fgenerativity-pattern-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b213b2dc200abfa7c16fec6b22e3e6f37984b70a
[INFO] testing ArhanChaudhary/generativity-pattern-rs against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArhanChaudhary%2Fgenerativity-pattern-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/ArhanChaudhary/generativity-pattern-rs
[INFO] finished tweaking git repo https://github.com/ArhanChaudhary/generativity-pattern-rs
[INFO] tweaked toml for git repo https://github.com/ArhanChaudhary/generativity-pattern-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ArhanChaudhary/generativity-pattern-rs on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ArhanChaudhary/generativity-pattern-rs 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v4.5.40
[INFO] [stderr]   Downloaded permutation-rs v3.0.0
[INFO] [stderr]   Downloaded oorandom v11.1.5
[INFO] [stderr]   Downloaded generativity v1.1.0
[INFO] [stderr]   Downloaded clap_builder v4.5.40
[INFO] [stderr]   Downloaded criterion v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6df5be6efc1503a5a33a164a4fbcdeddde731a3c3eecca8a346d5a92e1359de7
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[INFO] running `Command { std: "docker" "inspect" "6df5be6efc1503a5a33a164a4fbcdeddde731a3c3eecca8a346d5a92e1359de7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df5be6efc1503a5a33a164a4fbcdeddde731a3c3eecca8a346d5a92e1359de7", kill_on_drop: false }`
[INFO] [stdout] 6df5be6efc1503a5a33a164a4fbcdeddde731a3c3eecca8a346d5a92e1359de7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee3f4a912d254d17bc372efd1ba1434236f3d1ec7923d3f07b4f7dbde1f59e17
[INFO] running `Command { std: "docker" "start" "-a" "ee3f4a912d254d17bc372efd1ba1434236f3d1ec7923d3f07b4f7dbde1f59e17", kill_on_drop: false }`
[INFO] [stderr]    Compiling generativity v1.1.0
[INFO] [stderr]    Compiling permutation-rs v3.0.0
[INFO] [stderr]    Compiling generativity-pattern-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `make_guard`
[INFO] [stdout]  --> src/branded_vec.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use generativity::{Guard, Id, make_guard};
[INFO] [stdout]   |                               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `base_permutation_length` is never read
[INFO] [stdout]  --> src/3-unsafe_trait.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct PermGroup {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 4 |     base_permutation_length: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BrandedVec` is never constructed
[INFO] [stdout]  --> src/branded_vec.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct BrandedVec<'id, T> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BrandedIndex` is never constructed
[INFO] [stdout]   --> src/branded_vec.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct BrandedIndex<'id> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_index`, `get`, `get_mut`, and `push` are never used
[INFO] [stdout]   --> src/branded_vec.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<'id, T> BrandedVec<'id, T> {
[INFO] [stdout]    | ------------------------------- associated items in this implementation
[INFO] [stdout] 19 |     pub fn new(inner: Vec<T>, guard: Guard<'id>) -> BrandedVec<'id, T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn get_index(&self, index: usize) -> Option<BrandedIndex<'id>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn get(&self, index: BrandedIndex<'id>) -> &T {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn get_mut<'a>(&'a mut self, index: BrandedIndex<'id>) -> &'a mut T {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn push<'a>(&'a mut self, val: T) -> BrandedIndex<'id> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "ee3f4a912d254d17bc372efd1ba1434236f3d1ec7923d3f07b4f7dbde1f59e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee3f4a912d254d17bc372efd1ba1434236f3d1ec7923d3f07b4f7dbde1f59e17", kill_on_drop: false }`
[INFO] [stdout] ee3f4a912d254d17bc372efd1ba1434236f3d1ec7923d3f07b4f7dbde1f59e17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0ce72077c7d28e89019541d9be03f8b51f65743a29f64c5514a94d08eb1b530
[INFO] running `Command { std: "docker" "start" "-a" "d0ce72077c7d28e89019541d9be03f8b51f65743a29f64c5514a94d08eb1b530", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stdout] warning: unused import: `make_guard`
[INFO] [stdout]  --> src/branded_vec.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use generativity::{Guard, Id, make_guard};
[INFO] [stdout]   |                               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `base_permutation_length` is never read
[INFO] [stdout]  --> src/3-unsafe_trait.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct PermGroup {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 4 |     base_permutation_length: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BrandedVec` is never constructed
[INFO] [stdout]  --> src/branded_vec.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct BrandedVec<'id, T> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stdout] warning: struct `BrandedIndex` is never constructed
[INFO] [stdout]   --> src/branded_vec.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct BrandedIndex<'id> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_index`, `get`, `get_mut`, and `push` are never used
[INFO] [stdout]   --> src/branded_vec.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<'id, T> BrandedVec<'id, T> {
[INFO] [stdout]    | ------------------------------- associated items in this implementation
[INFO] [stdout] 19 |     pub fn new(inner: Vec<T>, guard: Guard<'id>) -> BrandedVec<'id, T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn get_index(&self, index: usize) -> Option<BrandedIndex<'id>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn get(&self, index: BrandedIndex<'id>) -> &T {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn get_mut<'a>(&'a mut self, index: BrandedIndex<'id>) -> &'a mut T {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn push<'a>(&'a mut self, val: T) -> BrandedIndex<'id> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling clap_builder v4.5.40
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling clap v4.5.40
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.6.0
[INFO] [stderr]    Compiling generativity-pattern-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `base_permutation_length` is never read
[INFO] [stdout]  --> src/3-unsafe_trait.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct PermGroup {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 4 |     base_permutation_length: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/branded_vec.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct BrandedIndex<'id> {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] 14 |     idx: usize,
[INFO] [stdout] 15 |     id: Id<'id>,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BrandedIndex` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "d0ce72077c7d28e89019541d9be03f8b51f65743a29f64c5514a94d08eb1b530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0ce72077c7d28e89019541d9be03f8b51f65743a29f64c5514a94d08eb1b530", kill_on_drop: false }`
[INFO] [stdout] d0ce72077c7d28e89019541d9be03f8b51f65743a29f64c5514a94d08eb1b530
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 150d4f6e78e8901390c61f1f6021d62afd61b00c58ff941d6ad6d0b7e694dbd5
[INFO] running `Command { std: "docker" "start" "-a" "150d4f6e78e8901390c61f1f6021d62afd61b00c58ff941d6ad6d0b7e694dbd5", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `make_guard`
[INFO] [stderr]  --> src/branded_vec.rs:1:31
[INFO] [stderr]   |
[INFO] [stderr] 1 | use generativity::{Guard, Id, make_guard};
[INFO] [stderr]   |                               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `base_permutation_length` is never read
[INFO] [stderr]  --> src/3-unsafe_trait.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct PermGroup {
[INFO] [stderr]   |            --------- field in this struct
[INFO] [stderr] 4 |     base_permutation_length: usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BrandedVec` is never constructed
[INFO] [stderr]  --> src/branded_vec.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct BrandedVec<'id, T> {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BrandedIndex` is never constructed
[INFO] [stderr]   --> src/branded_vec.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct BrandedIndex<'id> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `get_index`, `get`, `get_mut`, and `push` are never used
[INFO] [stderr]   --> src/branded_vec.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl<'id, T> BrandedVec<'id, T> {
[INFO] [stderr]    | ------------------------------- associated items in this implementation
[INFO] [stderr] 19 |     pub fn new(inner: Vec<T>, guard: Guard<'id>) -> BrandedVec<'id, T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |     pub fn get_index(&self, index: usize) -> Option<BrandedIndex<'id>> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 37 |     pub fn get(&self, index: BrandedIndex<'id>) -> &T {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 41 |     pub fn get_mut<'a>(&'a mut self, index: BrandedIndex<'id>) -> &'a mut T {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |     pub fn push<'a>(&'a mut self, val: T) -> BrandedIndex<'id> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `generativity-pattern-rs` (lib) generated 5 warnings (run `cargo fix --lib -p generativity-pattern-rs` to apply 1 suggestion)
[INFO] [stderr] warning: field `id` is never read
[INFO] [stderr]   --> src/branded_vec.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct BrandedIndex<'id> {
[INFO] [stderr]    |        ------------ field in this struct
[INFO] [stderr] 14 |     idx: usize,
[INFO] [stderr] 15 |     id: Id<'id>,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `BrandedIndex` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `generativity-pattern-rs` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/generativity_pattern_rs-cc2c36334561d9d0)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test branded_vec::tests::branded_vec_example ... ok
[INFO] [stdout] test min_generativity::tests::generative_lifetime ... ok
[INFO] [stdout] test mod_6_unsound_token::tests::unsound ... ok
[INFO] [stdout] test min_generativity::tests::test_oibits ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests generativity_pattern_rs
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "150d4f6e78e8901390c61f1f6021d62afd61b00c58ff941d6ad6d0b7e694dbd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "150d4f6e78e8901390c61f1f6021d62afd61b00c58ff941d6ad6d0b7e694dbd5", kill_on_drop: false }`
[INFO] [stdout] 150d4f6e78e8901390c61f1f6021d62afd61b00c58ff941d6ad6d0b7e694dbd5
