[INFO] fetching crate cardinality-estimator 1.0.2...
[INFO] checking cardinality-estimator-1.0.2 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate cardinality-estimator 1.0.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cardinality-estimator 1.0.2
[INFO] finished tweaking crates.io crate cardinality-estimator 1.0.2
[INFO] tweaked toml for crates.io crate cardinality-estimator 1.0.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cardinality-estimator 1.0.2 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cardinality-estimator 1.0.2 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: enum `RepresentationError` is never used
[INFO] [stdout]   --> src/representation.rs:42:10
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub enum RepresentationError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `try_from` is never used
[INFO] [stdout]   --> src/representation.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl<'a, const P: usize, const W: usize> Representation<'a, P, W> {
[INFO] [stdout]    | ----------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn try_from<T, H>(
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/estimator.rs:102:34
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn representation(&self) -> Representation<P, W> {
[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] 102 |     pub(crate) fn representation(&self) -> Representation<'_, P, W> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stdout] warning: method `merge` is never used
[INFO] [stdout]    --> benches/cardinality_estimator.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | trait CardinalityEstimatorTrait<T: Hash + ?Sized> {
[INFO] [stdout]     |       ------------------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn merge(&mut self, rhs: &Self);
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RepresentationError` is never used
[INFO] [stdout]   --> src/representation.rs:42:10
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub enum RepresentationError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `try_from` is never used
[INFO] [stdout]   --> src/representation.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl<'a, const P: usize, const W: usize> Representation<'a, P, W> {
[INFO] [stdout]    | ----------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn try_from<T, H>(
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/estimator.rs:102:34
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub(crate) fn representation(&self) -> Representation<P, W> {
[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] 102 |     pub(crate) fn representation(&self) -> Representation<'_, P, W> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.20s
[INFO] running `Command { std: "docker" "inspect" "4cae492720ad210fccf6fb6067ac9b55763838689fa2db585371def51759bb4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cae492720ad210fccf6fb6067ac9b55763838689fa2db585371def51759bb4d", kill_on_drop: false }`
[INFO] [stdout] 4cae492720ad210fccf6fb6067ac9b55763838689fa2db585371def51759bb4d