[INFO] fetching crate spenso 0.5.4...
[INFO] building spenso-0.5.4 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate spenso 0.5.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate spenso 0.5.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate spenso 0.5.4
[INFO] tweaked toml for crates.io crate spenso 0.5.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate spenso 0.5.4 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate spenso 0.5.4 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] [stderr]  Downloading crates ...
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[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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/contraction/trace.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/algebra/upgrading_arithmetic.rs:735:20
[INFO] [stdout]     |
[INFO] [stdout] 735 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>;
[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] 735 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>;
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/algebra/upgrading_arithmetic.rs:797:20
[INFO] [stdout]     |
[INFO] [stdout] 797 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 797 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/algebra/upgrading_arithmetic.rs:929:20
[INFO] [stdout]     |
[INFO] [stdout] 929 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 929 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1019:20
[INFO] [stdout]      |
[INFO] [stdout] 1019 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1019 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1031:20
[INFO] [stdout]      |
[INFO] [stdout] 1031 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1031 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1281:20
[INFO] [stdout]      |
[INFO] [stdout] 1281 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1281 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1293:20
[INFO] [stdout]      |
[INFO] [stdout] 1293 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1293 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/iterators/tensor_iterators.rs:230:23
[INFO] [stdout]     |
[INFO] [stdout] 230 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> SparseTensorTraceIterator<T, S> {
[INFO] [stdout]     |                       ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 230 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> SparseTensorTraceIterator<'_, T, S> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/iterators/tensor_iterators.rs:514:23
[INFO] [stdout]     |
[INFO] [stdout] 514 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> DenseTensorTraceIterator<T, I> {
[INFO] [stdout]     |                       ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 514 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> DenseTensorTraceIterator<'_, T, I> {
[INFO] [stdout]     |                                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/structure.rs:670:19
[INFO] [stdout]     |
[INFO] [stdout] 670 |     fn index_iter(&self) -> TensorStructureIndexIterator<Self>
[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] 670 |     fn index_iter(&self) -> TensorStructureIndexIterator<'_, Self>
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data.rs:571:27
[INFO] [stdout]     |
[INFO] [stdout] 571 |     pub fn try_upgrade<T>(&self) -> Option<Cow<DataTensor<U::LCM, I>>>
[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] 571 |     pub fn try_upgrade<T>(&self) -> Option<Cow<'_, DataTensor<U::LCM, I>>>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data/dense.rs:434:27
[INFO] [stdout]     |
[INFO] [stdout] 434 |     pub fn try_upgrade<T>(&self) -> Option<Cow<DenseTensor<U::LCM, I>>>
[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] 434 |     pub fn try_upgrade<T>(&self) -> Option<Cow<'_, DenseTensor<U::LCM, I>>>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data/sparse.rs:612:27
[INFO] [stdout]     |
[INFO] [stdout] 612 |     pub fn try_upgrade<T>(&self) -> Option<Cow<SparseTensor<U::LCM, I>>>
[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] 612 |     pub fn try_upgrade<T>(&self) -> Option<Cow<'_, SparseTensor<U::LCM, I>>>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data/sparse.rs:719:22
[INFO] [stdout]     |
[INFO] [stdout] 719 |     pub fn smart_get(&self, indices: &[ConcreteIndex]) -> Result<Cow<T>>
[INFO] [stdout]     |                      ^^^^^ the lifetime is elided here           ^^^^^^ the same lifetime is hidden 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] 719 |     pub fn smart_get(&self, indices: &[ConcreteIndex]) -> Result<Cow<'_, T>>
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.15s
[INFO] running `Command { std: "docker" "inspect" "f0b9f3aa43419ceacda0672b750882833972c53e3867a07293e7a10dda296196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0b9f3aa43419ceacda0672b750882833972c53e3867a07293e7a10dda296196", kill_on_drop: false }`
[INFO] [stdout] f0b9f3aa43419ceacda0672b750882833972c53e3867a07293e7a10dda296196
[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" "-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a5c64b6ef06d72f98d42c277b321cff3f11bfee0bb0959b39b785396b1c6184
[INFO] running `Command { std: "docker" "start" "-a" "5a5c64b6ef06d72f98d42c277b321cff3f11bfee0bb0959b39b785396b1c6184", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling clap_builder v4.5.41
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling approxim v0.6.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling ron v0.8.1
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling insta v1.43.1
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling clap v4.5.41
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v1.7.0
[INFO] [stderr]    Compiling linnet v0.12.0
[INFO] [stderr]    Compiling spenso v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/contraction/trace.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/contraction/trace.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/algebra/upgrading_arithmetic.rs:735:20
[INFO] [stdout]     |
[INFO] [stdout] 735 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>;
[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] 735 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>;
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/algebra/upgrading_arithmetic.rs:797:20
[INFO] [stdout]     |
[INFO] [stdout] 797 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 797 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/algebra/upgrading_arithmetic.rs:929:20
[INFO] [stdout]     |
[INFO] [stdout] 929 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 929 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1019:20
[INFO] [stdout]      |
[INFO] [stdout] 1019 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1019 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1031:20
[INFO] [stdout]      |
[INFO] [stdout] 1031 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1031 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1281:20
[INFO] [stdout]      |
[INFO] [stdout] 1281 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1281 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1293:20
[INFO] [stdout]      |
[INFO] [stdout] 1293 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1293 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/iterators/tensor_iterators.rs:230:23
[INFO] [stdout]     |
[INFO] [stdout] 230 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> SparseTensorTraceIterator<T, S> {
[INFO] [stdout]     |                       ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 230 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> SparseTensorTraceIterator<'_, T, S> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/iterators/tensor_iterators.rs:514:23
[INFO] [stdout]     |
[INFO] [stdout] 514 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> DenseTensorTraceIterator<T, I> {
[INFO] [stdout]     |                       ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 514 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> DenseTensorTraceIterator<'_, T, I> {
[INFO] [stdout]     |                                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/structure.rs:670:19
[INFO] [stdout]     |
[INFO] [stdout] 670 |     fn index_iter(&self) -> TensorStructureIndexIterator<Self>
[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] 670 |     fn index_iter(&self) -> TensorStructureIndexIterator<'_, Self>
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data.rs:571:27
[INFO] [stdout]     |
[INFO] [stdout] 571 |     pub fn try_upgrade<T>(&self) -> Option<Cow<DataTensor<U::LCM, I>>>
[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] 571 |     pub fn try_upgrade<T>(&self) -> Option<Cow<'_, DataTensor<U::LCM, I>>>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data/dense.rs:434:27
[INFO] [stdout]     |
[INFO] [stdout] 434 |     pub fn try_upgrade<T>(&self) -> Option<Cow<DenseTensor<U::LCM, I>>>
[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] 434 |     pub fn try_upgrade<T>(&self) -> Option<Cow<'_, DenseTensor<U::LCM, I>>>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data/sparse.rs:612:27
[INFO] [stdout]     |
[INFO] [stdout] 612 |     pub fn try_upgrade<T>(&self) -> Option<Cow<SparseTensor<U::LCM, I>>>
[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] 612 |     pub fn try_upgrade<T>(&self) -> Option<Cow<'_, SparseTensor<U::LCM, I>>>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data/sparse.rs:719:22
[INFO] [stdout]     |
[INFO] [stdout] 719 |     pub fn smart_get(&self, indices: &[ConcreteIndex]) -> Result<Cow<T>>
[INFO] [stdout]     |                      ^^^^^ the lifetime is elided here           ^^^^^^ the same lifetime is hidden 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] 719 |     pub fn smart_get(&self, indices: &[ConcreteIndex]) -> Result<Cow<'_, T>>
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/algebra/upgrading_arithmetic.rs:735:20
[INFO] [stdout]     |
[INFO] [stdout] 735 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>;
[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] 735 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>;
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/algebra/upgrading_arithmetic.rs:797:20
[INFO] [stdout]     |
[INFO] [stdout] 797 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 797 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/algebra/upgrading_arithmetic.rs:929:20
[INFO] [stdout]     |
[INFO] [stdout] 929 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 929 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1019:20
[INFO] [stdout]      |
[INFO] [stdout] 1019 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1019 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1031:20
[INFO] [stdout]      |
[INFO] [stdout] 1031 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1031 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1281:20
[INFO] [stdout]      |
[INFO] [stdout] 1281 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1281 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/algebra/upgrading_arithmetic.rs:1293:20
[INFO] [stdout]      |
[INFO] [stdout] 1293 |     fn try_upgrade(&self) -> Option<Cow<Self::LCM>>
[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] 1293 |     fn try_upgrade(&self) -> Option<Cow<'_, Self::LCM>>
[INFO] [stdout]      |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/iterators/tensor_iterators.rs:230:23
[INFO] [stdout]     |
[INFO] [stdout] 230 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> SparseTensorTraceIterator<T, S> {
[INFO] [stdout]     |                       ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 230 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> SparseTensorTraceIterator<'_, T, S> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/iterators/tensor_iterators.rs:514:23
[INFO] [stdout]     |
[INFO] [stdout] 514 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> DenseTensorTraceIterator<T, I> {
[INFO] [stdout]     |                       ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 514 |     pub fn iter_trace(&self, trace_indices: [usize; 2]) -> DenseTensorTraceIterator<'_, T, I> {
[INFO] [stdout]     |                                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/structure.rs:670:19
[INFO] [stdout]     |
[INFO] [stdout] 670 |     fn index_iter(&self) -> TensorStructureIndexIterator<Self>
[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] 670 |     fn index_iter(&self) -> TensorStructureIndexIterator<'_, Self>
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data.rs:571:27
[INFO] [stdout]     |
[INFO] [stdout] 571 |     pub fn try_upgrade<T>(&self) -> Option<Cow<DataTensor<U::LCM, I>>>
[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] 571 |     pub fn try_upgrade<T>(&self) -> Option<Cow<'_, DataTensor<U::LCM, I>>>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data/dense.rs:434:27
[INFO] [stdout]     |
[INFO] [stdout] 434 |     pub fn try_upgrade<T>(&self) -> Option<Cow<DenseTensor<U::LCM, I>>>
[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] 434 |     pub fn try_upgrade<T>(&self) -> Option<Cow<'_, DenseTensor<U::LCM, I>>>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data/sparse.rs:612:27
[INFO] [stdout]     |
[INFO] [stdout] 612 |     pub fn try_upgrade<T>(&self) -> Option<Cow<SparseTensor<U::LCM, I>>>
[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] 612 |     pub fn try_upgrade<T>(&self) -> Option<Cow<'_, SparseTensor<U::LCM, I>>>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensors/data/sparse.rs:719:22
[INFO] [stdout]     |
[INFO] [stdout] 719 |     pub fn smart_get(&self, indices: &[ConcreteIndex]) -> Result<Cow<T>>
[INFO] [stdout]     |                      ^^^^^ the lifetime is elided here           ^^^^^^ the same lifetime is hidden 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] 719 |     pub fn smart_get(&self, indices: &[ConcreteIndex]) -> Result<Cow<'_, T>>
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 27.00s
[INFO] running `Command { std: "docker" "inspect" "5a5c64b6ef06d72f98d42c277b321cff3f11bfee0bb0959b39b785396b1c6184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a5c64b6ef06d72f98d42c277b321cff3f11bfee0bb0959b39b785396b1c6184", kill_on_drop: false }`
[INFO] [stdout] 5a5c64b6ef06d72f98d42c277b321cff3f11bfee0bb0959b39b785396b1c6184
