[INFO] cloning repository https://github.com/GiovanniKarra/MatrixCompletion
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GiovanniKarra/MatrixCompletion" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGiovanniKarra%2FMatrixCompletion", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGiovanniKarra%2FMatrixCompletion'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3e195bf8b77175461d1387e5e58c7b4f5c1cf9d
[INFO] testing GiovanniKarra/MatrixCompletion against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGiovanniKarra%2FMatrixCompletion" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/GiovanniKarra/MatrixCompletion
[INFO] finished tweaking git repo https://github.com/GiovanniKarra/MatrixCompletion
[INFO] tweaked toml for git repo https://github.com/GiovanniKarra/MatrixCompletion written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GiovanniKarra/MatrixCompletion on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/GiovanniKarra/MatrixCompletion 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded criterion-plot v0.6.0
[INFO] [stderr]   Downloaded num v0.4.3
[INFO] [stderr]   Downloaded bitflags v2.9.3
[INFO] [stderr]   Downloaded criterion v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba61c3f828a41c0d4263e1a15cb1dc4c9d2bee97e04ace6f4c3ea6acb85679e7
[INFO] running `Command { std: "docker" "start" "-a" "ba61c3f828a41c0d4263e1a15cb1dc4c9d2bee97e04ace6f4c3ea6acb85679e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba61c3f828a41c0d4263e1a15cb1dc4c9d2bee97e04ace6f4c3ea6acb85679e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba61c3f828a41c0d4263e1a15cb1dc4c9d2bee97e04ace6f4c3ea6acb85679e7", kill_on_drop: false }`
[INFO] [stdout] ba61c3f828a41c0d4263e1a15cb1dc4c9d2bee97e04ace6f4c3ea6acb85679e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1db83f1087377df40a8a7c20cf4ae62997b69489c3d7d430dcc62722889c2969
[INFO] running `Command { std: "docker" "start" "-a" "1db83f1087377df40a8a7c20cf4ae62997b69489c3d7d430dcc62722889c2969", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.164
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling libmatcompl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `max_iter`
[INFO] [stdout]   --> src/opti/solver.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let max_iter = 100;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]   --> src/opti/mod.rs:89:2
[INFO] [stdout]    |
[INFO] [stdout] 88 | struct Constraint<T: Float, A: ConstraintMatrix<T>> {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 89 |     a: A,
[INFO] [stdout]    |     ^
[INFO] [stdout] 90 |     b: Matrix<T>
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/opti/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 93 | impl<T: Float, A: ConstraintMatrix<T>> Constraint<T, A> {
[INFO] [stdout]    | ------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 94 |     fn new(a: A, b: Matrix<T>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `obj`, `grad`, and `hess` are never read
[INFO] [stdout]    --> src/opti/mod.rs:101:2
[INFO] [stdout]     |
[INFO] [stdout] 100 | struct Objective<T: Float, I> {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 101 |     obj: fn(&I) -> T,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 102 |     grad: Option<fn(&I) -> Matrix<T>>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 103 |     hess: Option<fn(&I) -> Matrix<T>>
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/opti/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 106 | impl<T: Float, I> Objective<T, I> {
[INFO] [stdout]     | --------------------------------- associated function in this implementation
[INFO] [stdout] 107 |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `obj`, `constraint`, `cone`, and `size` are never read
[INFO] [stdout]    --> src/opti/mod.rs:120:2
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct ConicOptiProblem<T, C, A>
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 119 | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout] 120 |     obj: Objective<T, C::Input>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 121 |     constraint: Option<Constraint<T, A>>,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 122 |     cone: C,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 123 |     size: usize
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConicOptiProblemBuilder` is never constructed
[INFO] [stdout]    --> src/opti/mod.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | struct ConicOptiProblemBuilder<T, C, A>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `cone` are never used
[INFO] [stdout]    --> src/opti/mod.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 134 | / impl<T, A> ConicOptiProblemBuilder<T, DefaultCone, A>
[INFO] [stdout] 135 | | where T: Float, A: ConstraintMatrix<T> {
[INFO] [stdout]     | |______________________________________- associated items in this implementation
[INFO] [stdout] 136 |       fn new() -> Self {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 145 |       fn cone<C: Cone<T>>(self, cone: C) -> ConicOptiProblemBuilder<T, C, A> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `objective`, `constraint_a`, and `constraint_b` are never used
[INFO] [stdout]    --> src/opti/mod.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | / impl<T, C, A> ConicOptiProblemBuilder<T, C, A>
[INFO] [stdout] 156 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]     | |____________________________________________________________________- methods in this implementation
[INFO] [stdout] 157 |       fn objective(
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |       fn constraint_a(mut self, a: A) -> Self {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |       fn constraint_b(mut self, b: Matrix<T>) -> Self {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `build` is never used
[INFO] [stdout]    --> src/opti/mod.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 188 | / impl<T, C, A> ConicOptiProblemBuilder<T, C, A>
[INFO] [stdout] 189 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]     | |____________________________________________________________________- method in this implementation
[INFO] [stdout] 190 |       fn build(self) -> ConicOptiProblem<T, C, A> {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `builder` is never used
[INFO] [stdout]    --> src/opti/mod.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 209 | / impl<T, C, A> ConicOptiProblem<T, C, A>
[INFO] [stdout] 210 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]     | |____________________________________________________________________- associated function in this implementation
[INFO] [stdout] 211 |       fn builder<B: ConstraintMatrix<T>>() -> ConicOptiProblemBuilder<T, DefaultCone, B> {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solver` is never constructed
[INFO] [stdout]  --> src/opti/solver.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Solver;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `short_step_algorithm` is never used
[INFO] [stdout]   --> src/opti/solver.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<T, C, A> ConicOptiProblem<T, C, A>
[INFO] [stdout] 12 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]    | |____________________________________________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |       fn short_step_algorithm(&self, eps: f64) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linalg/matrix/mod.rs:91:14
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] 91 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linalg/matrix/mod.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<T> {
[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] 95 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, T> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.06s
[INFO] running `Command { std: "docker" "inspect" "1db83f1087377df40a8a7c20cf4ae62997b69489c3d7d430dcc62722889c2969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db83f1087377df40a8a7c20cf4ae62997b69489c3d7d430dcc62722889c2969", kill_on_drop: false }`
[INFO] [stdout] 1db83f1087377df40a8a7c20cf4ae62997b69489c3d7d430dcc62722889c2969
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3245d52d75852c4d4e414c590962b08a364d0cb115753fa0535549155870cd33
[INFO] running `Command { std: "docker" "start" "-a" "3245d52d75852c4d4e414c590962b08a364d0cb115753fa0535549155870cd33", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling clap_builder v4.5.44
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling criterion-plot v0.6.0
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling libmatcompl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `max_iter`
[INFO] [stdout]   --> src/opti/solver.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let max_iter = 100;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]   --> src/opti/mod.rs:89:2
[INFO] [stdout]    |
[INFO] [stdout] 88 | struct Constraint<T: Float, A: ConstraintMatrix<T>> {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 89 |     a: A,
[INFO] [stdout]    |     ^
[INFO] [stdout] 90 |     b: Matrix<T>
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/opti/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 93 | impl<T: Float, A: ConstraintMatrix<T>> Constraint<T, A> {
[INFO] [stdout]    | ------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 94 |     fn new(a: A, b: Matrix<T>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `obj`, `grad`, and `hess` are never read
[INFO] [stdout]    --> src/opti/mod.rs:101:2
[INFO] [stdout]     |
[INFO] [stdout] 100 | struct Objective<T: Float, I> {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 101 |     obj: fn(&I) -> T,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 102 |     grad: Option<fn(&I) -> Matrix<T>>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 103 |     hess: Option<fn(&I) -> Matrix<T>>
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/opti/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 106 | impl<T: Float, I> Objective<T, I> {
[INFO] [stdout]     | --------------------------------- associated function in this implementation
[INFO] [stdout] 107 |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `obj`, `constraint`, `cone`, and `size` are never read
[INFO] [stdout]    --> src/opti/mod.rs:120:2
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct ConicOptiProblem<T, C, A>
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 119 | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout] 120 |     obj: Objective<T, C::Input>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 121 |     constraint: Option<Constraint<T, A>>,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 122 |     cone: C,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 123 |     size: usize
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConicOptiProblemBuilder` is never constructed
[INFO] [stdout]    --> src/opti/mod.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | struct ConicOptiProblemBuilder<T, C, A>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `cone` are never used
[INFO] [stdout]    --> src/opti/mod.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 134 | / impl<T, A> ConicOptiProblemBuilder<T, DefaultCone, A>
[INFO] [stdout] 135 | | where T: Float, A: ConstraintMatrix<T> {
[INFO] [stdout]     | |______________________________________- associated items in this implementation
[INFO] [stdout] 136 |       fn new() -> Self {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 145 |       fn cone<C: Cone<T>>(self, cone: C) -> ConicOptiProblemBuilder<T, C, A> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `objective`, `constraint_a`, and `constraint_b` are never used
[INFO] [stdout]    --> src/opti/mod.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | / impl<T, C, A> ConicOptiProblemBuilder<T, C, A>
[INFO] [stdout] 156 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]     | |____________________________________________________________________- methods in this implementation
[INFO] [stdout] 157 |       fn objective(
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |       fn constraint_a(mut self, a: A) -> Self {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |       fn constraint_b(mut self, b: Matrix<T>) -> Self {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `build` is never used
[INFO] [stdout]    --> src/opti/mod.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 188 | / impl<T, C, A> ConicOptiProblemBuilder<T, C, A>
[INFO] [stdout] 189 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]     | |____________________________________________________________________- method in this implementation
[INFO] [stdout] 190 |       fn build(self) -> ConicOptiProblem<T, C, A> {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `builder` is never used
[INFO] [stdout]    --> src/opti/mod.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 209 | / impl<T, C, A> ConicOptiProblem<T, C, A>
[INFO] [stdout] 210 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]     | |____________________________________________________________________- associated function in this implementation
[INFO] [stdout] 211 |       fn builder<B: ConstraintMatrix<T>>() -> ConicOptiProblemBuilder<T, DefaultCone, B> {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solver` is never constructed
[INFO] [stdout]  --> src/opti/solver.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Solver;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `short_step_algorithm` is never used
[INFO] [stdout]   --> src/opti/solver.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<T, C, A> ConicOptiProblem<T, C, A>
[INFO] [stdout] 12 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]    | |____________________________________________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |       fn short_step_algorithm(&self, eps: f64) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linalg/matrix/mod.rs:91:14
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] 91 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linalg/matrix/mod.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<T> {
[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] 95 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, T> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling clap v4.5.45
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.7.0
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/opti/mod.rs:224:6
[INFO] [stdout]     |
[INFO] [stdout] 224 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_iter`
[INFO] [stdout]   --> src/opti/solver.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let max_iter = 100;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]   --> src/opti/mod.rs:89:2
[INFO] [stdout]    |
[INFO] [stdout] 88 | struct Constraint<T: Float, A: ConstraintMatrix<T>> {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 89 |     a: A,
[INFO] [stdout]    |     ^
[INFO] [stdout] 90 |     b: Matrix<T>
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/opti/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 93 | impl<T: Float, A: ConstraintMatrix<T>> Constraint<T, A> {
[INFO] [stdout]    | ------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 94 |     fn new(a: A, b: Matrix<T>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `obj`, `grad`, and `hess` are never read
[INFO] [stdout]    --> src/opti/mod.rs:101:2
[INFO] [stdout]     |
[INFO] [stdout] 100 | struct Objective<T: Float, I> {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 101 |     obj: fn(&I) -> T,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 102 |     grad: Option<fn(&I) -> Matrix<T>>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 103 |     hess: Option<fn(&I) -> Matrix<T>>
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/opti/mod.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 106 | impl<T: Float, I> Objective<T, I> {
[INFO] [stdout]     | --------------------------------- associated function in this implementation
[INFO] [stdout] 107 |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `obj`, `constraint`, `cone`, and `size` are never read
[INFO] [stdout]    --> src/opti/mod.rs:120:2
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct ConicOptiProblem<T, C, A>
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 119 | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout] 120 |     obj: Objective<T, C::Input>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 121 |     constraint: Option<Constraint<T, A>>,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 122 |     cone: C,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 123 |     size: usize
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConicOptiProblemBuilder` is never constructed
[INFO] [stdout]    --> src/opti/mod.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | struct ConicOptiProblemBuilder<T, C, A>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `cone` are never used
[INFO] [stdout]    --> src/opti/mod.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 134 | / impl<T, A> ConicOptiProblemBuilder<T, DefaultCone, A>
[INFO] [stdout] 135 | | where T: Float, A: ConstraintMatrix<T> {
[INFO] [stdout]     | |______________________________________- associated items in this implementation
[INFO] [stdout] 136 |       fn new() -> Self {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 145 |       fn cone<C: Cone<T>>(self, cone: C) -> ConicOptiProblemBuilder<T, C, A> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `objective`, `constraint_a`, and `constraint_b` are never used
[INFO] [stdout]    --> src/opti/mod.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | / impl<T, C, A> ConicOptiProblemBuilder<T, C, A>
[INFO] [stdout] 156 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]     | |____________________________________________________________________- methods in this implementation
[INFO] [stdout] 157 |       fn objective(
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |       fn constraint_a(mut self, a: A) -> Self {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |       fn constraint_b(mut self, b: Matrix<T>) -> Self {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `build` is never used
[INFO] [stdout]    --> src/opti/mod.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 188 | / impl<T, C, A> ConicOptiProblemBuilder<T, C, A>
[INFO] [stdout] 189 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]     | |____________________________________________________________________- method in this implementation
[INFO] [stdout] 190 |       fn build(self) -> ConicOptiProblem<T, C, A> {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `builder` is never used
[INFO] [stdout]    --> src/opti/mod.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 209 | / impl<T, C, A> ConicOptiProblem<T, C, A>
[INFO] [stdout] 210 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]     | |____________________________________________________________________- associated function in this implementation
[INFO] [stdout] 211 |       fn builder<B: ConstraintMatrix<T>>() -> ConicOptiProblemBuilder<T, DefaultCone, B> {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solver` is never constructed
[INFO] [stdout]  --> src/opti/solver.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Solver;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `short_step_algorithm` is never used
[INFO] [stdout]   --> src/opti/solver.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | / impl<T, C, A> ConicOptiProblem<T, C, A>
[INFO] [stdout] 12 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stdout]    | |____________________________________________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |       fn short_step_algorithm(&self, eps: f64) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linalg/matrix/mod.rs:91:14
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] 91 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linalg/matrix/mod.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<T> {
[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] 95 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, T> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 20.96s
[INFO] running `Command { std: "docker" "inspect" "3245d52d75852c4d4e414c590962b08a364d0cb115753fa0535549155870cd33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3245d52d75852c4d4e414c590962b08a364d0cb115753fa0535549155870cd33", kill_on_drop: false }`
[INFO] [stdout] 3245d52d75852c4d4e414c590962b08a364d0cb115753fa0535549155870cd33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b679bbe5a317a92ba7632720d20cc08c8ed7754e747f5b0dce3af16005ae40bb
[INFO] running `Command { std: "docker" "start" "-a" "b679bbe5a317a92ba7632720d20cc08c8ed7754e747f5b0dce3af16005ae40bb", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `max_iter`
[INFO] [stderr]   --> src/opti/solver.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let max_iter = 100;
[INFO] [stderr]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `a` and `b` are never read
[INFO] [stderr]   --> src/opti/mod.rs:89:2
[INFO] [stderr]    |
[INFO] [stderr] 88 | struct Constraint<T: Float, A: ConstraintMatrix<T>> {
[INFO] [stderr]    |        ---------- fields in this struct
[INFO] [stderr] 89 |     a: A,
[INFO] [stderr]    |     ^
[INFO] [stderr] 90 |     b: Matrix<T>
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/opti/mod.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 93 | impl<T: Float, A: ConstraintMatrix<T>> Constraint<T, A> {
[INFO] [stderr]    | ------------------------------------------------------- associated function in this implementation
[INFO] [stderr] 94 |     fn new(a: A, b: Matrix<T>) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `obj`, `grad`, and `hess` are never read
[INFO] [stderr]    --> src/opti/mod.rs:101:2
[INFO] [stderr]     |
[INFO] [stderr] 100 | struct Objective<T: Float, I> {
[INFO] [stderr]     |        --------- fields in this struct
[INFO] [stderr] 101 |     obj: fn(&I) -> T,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 102 |     grad: Option<fn(&I) -> Matrix<T>>,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 103 |     hess: Option<fn(&I) -> Matrix<T>>
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/opti/mod.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 106 | impl<T: Float, I> Objective<T, I> {
[INFO] [stderr]     | --------------------------------- associated function in this implementation
[INFO] [stderr] 107 |     pub fn new(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `obj`, `constraint`, `cone`, and `size` are never read
[INFO] [stderr]    --> src/opti/mod.rs:120:2
[INFO] [stderr]     |
[INFO] [stderr] 118 | pub struct ConicOptiProblem<T, C, A>
[INFO] [stderr]     |            ---------------- fields in this struct
[INFO] [stderr] 119 | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stderr] 120 |     obj: Objective<T, C::Input>,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 121 |     constraint: Option<Constraint<T, A>>,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 122 |     cone: C,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 123 |     size: usize
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ConicOptiProblemBuilder` is never constructed
[INFO] [stderr]    --> src/opti/mod.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 | struct ConicOptiProblemBuilder<T, C, A>
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `cone` are never used
[INFO] [stderr]    --> src/opti/mod.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 134 | / impl<T, A> ConicOptiProblemBuilder<T, DefaultCone, A>
[INFO] [stderr] 135 | | where T: Float, A: ConstraintMatrix<T> {
[INFO] [stderr]     | |______________________________________- associated items in this implementation
[INFO] [stderr] 136 |       fn new() -> Self {
[INFO] [stderr]     |          ^^^
[INFO] [stderr] ...
[INFO] [stderr] 145 |       fn cone<C: Cone<T>>(self, cone: C) -> ConicOptiProblemBuilder<T, C, A> {
[INFO] [stderr]     |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `objective`, `constraint_a`, and `constraint_b` are never used
[INFO] [stderr]    --> src/opti/mod.rs:157:5
[INFO] [stderr]     |
[INFO] [stderr] 155 | / impl<T, C, A> ConicOptiProblemBuilder<T, C, A>
[INFO] [stderr] 156 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stderr]     | |____________________________________________________________________- methods in this implementation
[INFO] [stderr] 157 |       fn objective(
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 177 |       fn constraint_a(mut self, a: A) -> Self {
[INFO] [stderr]     |          ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 182 |       fn constraint_b(mut self, b: Matrix<T>) -> Self {
[INFO] [stderr]     |          ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `build` is never used
[INFO] [stderr]    --> src/opti/mod.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 188 | / impl<T, C, A> ConicOptiProblemBuilder<T, C, A>
[INFO] [stderr] 189 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stderr]     | |____________________________________________________________________- method in this implementation
[INFO] [stderr] 190 |       fn build(self) -> ConicOptiProblem<T, C, A> {
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `builder` is never used
[INFO] [stderr]    --> src/opti/mod.rs:211:5
[INFO] [stderr]     |
[INFO] [stderr] 209 | / impl<T, C, A> ConicOptiProblem<T, C, A>
[INFO] [stderr] 210 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stderr]     | |____________________________________________________________________- associated function in this implementation
[INFO] [stderr] 211 |       fn builder<B: ConstraintMatrix<T>>() -> ConicOptiProblemBuilder<T, DefaultCone, B> {
[INFO] [stderr]     |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solver` is never constructed
[INFO] [stderr]  --> src/opti/solver.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Solver;
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `short_step_algorithm` is never used
[INFO] [stderr]   --> src/opti/solver.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | / impl<T, C, A> ConicOptiProblem<T, C, A>
[INFO] [stderr] 12 | | where T: Float, C: Cone<T>, A: ConstraintMatrix<T, Input = C::Input> {
[INFO] [stderr]    | |____________________________________________________________________- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 17 |       fn short_step_algorithm(&self, eps: f64) {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/linalg/matrix/mod.rs:91:14
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn iter(&self) -> std::slice::Iter<T> {
[INFO] [stderr]    |                 ^^^^^     ------------------- the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stderr]    |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/linalg/matrix/mod.rs:95:18
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<T> {
[INFO] [stderr]    |                     ^^^^^^^^^     ---------------------- the same lifetime is hidden here
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn iter_mut(&mut self) -> std::slice::IterMut<'_, T> {
[INFO] [stderr]    |                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: `libmatcompl` (lib) generated 15 warnings
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/opti/mod.rs:224:6
[INFO] [stderr]     |
[INFO] [stderr] 224 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `libmatcompl` (lib test) generated 16 warnings (15 duplicates) (run `cargo fix --lib -p libmatcompl --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libmatcompl-da29ee7a2d66b6a8)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test linalg::matrix::ops::tests::sum2 ... ok
[INFO] [stdout] test linalg::matrix::ops::tests::test_mult ... ok
[INFO] [stdout] test linalg::matrix::tests::get_and_set_valid ... ok
[INFO] [stdout] test linalg::matrix::tests::get_and_set_valid_index ... ok
[INFO] [stdout] test linalg::matrix::tests::test_index ... ok
[INFO] [stdout] test linalg::matrix::ops::tests::sum1 ... ok
[INFO] [stdout] test linalg::matrix::tests::test_dot ... ok
[INFO] [stdout] test linalg::matrix::tests::test_print ... ok
[INFO] [stdout] test linalg::matrix::tests::create_matrix ... ok
[INFO] [stdout] test linalg::matrix::tests::test_solve ... ok
[INFO] [stdout] test opti::tests::test_linear_program ... ok
[INFO] [stdout] test linalg::matrix::ops::tests::sum_panic1 - should panic ... ok
[INFO] [stdout] test linalg::matrix::ops::tests::mult_panic - should panic ... ok
[INFO] [stdout] test linalg::matrix::tests::create_panic - should panic ... ok
[INFO] [stdout] test linalg::matrix::ops::tests::sum_panic2 - should panic ... ok
[INFO] [stdout] test linalg::matrix::tests::get_panic2 - should panic ... ok
[INFO] [stdout] test linalg::matrix::tests::dot_panic - should panic ... ok
[INFO] [stdout] test linalg::matrix::tests::set_panic2 - should panic ... ok
[INFO] [stdout] test linalg::matrix::tests::set_panic1 - should panic ... ok
[INFO] [stdout] test linalg::matrix::tests::test_solve_pivot ... FAILED
[INFO] [stdout] test linalg::matrix::tests::get_panic1 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- linalg::matrix::tests::test_solve_pivot stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'linalg::matrix::tests::test_solve_pivot' panicked at src/linalg/matrix/mod.rs:318:9:
[INFO] [stdout] not yet implemented
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x57721043f992 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x57721043f992 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x57721043f992 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x57721043f992 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x577210465a13 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x577210465a13 - core::fmt::write::h8a494366950f23bb
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x57721043c913 - std::io::default_write_fmt::h7b8824096454f323
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x57721043c913 - std::io::Write::write_fmt::h4e71294925c334d0
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x57721043f7e2 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x577210440f09 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x577210440d3e - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x5772104092a4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb6bd65493727d71a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x5772104092a4 - test::test_main_with_exit_callback::{{closure}}::h60217ec76a0ece4a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5772104418de - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h318e4efb8c1a5689
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x5772104418de - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x577210441676 - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:699:13
[INFO] [stdout]   16:     0x57721043fe89 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x57721044133d - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x577210463670 - core::panicking::panic_fmt::h62f63d096dd276af
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5772104636fc - core::panicking::panic::h89a5f2df32b0508a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:145:5
[INFO] [stdout]   20:     0x5772103cd5fa - libmatcompl::linalg::matrix::tests::test_solve_pivot::hd973969dfbce12b6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/linalg/matrix/mod.rs:318:3
[INFO] [stdout]   21:     0x5772103cd5c7 - libmatcompl::linalg::matrix::tests::test_solve_pivot::{{closure}}::h2c57e7a36bc01d36
[INFO] [stdout]                                at /opt/rustwide/workdir/src/linalg/matrix/mod.rs:317:23
[INFO] [stdout]   22:     0x5772103c1b06 - core::ops::function::FnOnce::call_once::h7d1297dfdda3228c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   23:     0x57721040eb0b - core::ops::function::FnOnce::call_once::h1f9474f1347fff52
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x57721040eb0b - test::__rust_begin_short_backtrace::ha52ab26e77157f03
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:648:18
[INFO] [stdout]   25:     0x57721040dc45 - test::run_test_in_process::{{closure}}::h229c1a11a50b261f
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:74
[INFO] [stdout]   26:     0x57721040dc45 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h78821afbf97b39a9
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x57721040dc45 - std::panicking::catch_unwind::do_call::h53abf3ed5bd32ba3
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   28:     0x57721040dc45 - std::panicking::catch_unwind::h6deb5fe1e91873c9
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   29:     0x57721040dc45 - std::panic::catch_unwind::hea0829b6b565654b
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x57721040dc45 - test::run_test_in_process::hdc44dfecea3db21b
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:27
[INFO] [stdout]   31:     0x57721040dc45 - test::run_test::{{closure}}::h0364ba59bf23f652
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:592:43
[INFO] [stdout]   32:     0x5772103d1844 - test::run_test::{{closure}}::h32730b304eec05da
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:622:41
[INFO] [stdout]   33:     0x5772103d1844 - std::sys::backtrace::__rust_begin_short_backtrace::h177cb952fc54ad2c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   34:     0x5772103d521a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h119d903520007597
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   35:     0x5772103d521a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hab88401d606702a6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5772103d521a - std::panicking::catch_unwind::do_call::h163fe12cca9901c2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   37:     0x5772103d521a - std::panicking::catch_unwind::he81557d0e17cc1bc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   38:     0x5772103d521a - std::panic::catch_unwind::hc2b8e79c20593955
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5772103d521a - std::thread::Builder::spawn_unchecked_::{{closure}}::hfa6b4978e07815cc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   40:     0x5772103d521a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hddcd7484a13fd793
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   41:     0x57721044485f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5924238c754de3b8
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   42:     0x57721044485f - std::sys::pal::unix::thread::Thread::new::thread_start::hb6e99e73da4d28f8
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/pal/unix/thread.rs:107:17
[INFO] [stdout]   43:     0x7fd9a67b9aa4 - <unknown>
[INFO] [stdout]   44:     0x7fd9a6846a34 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     linalg::matrix::tests::test_solve_pivot
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 20 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "b679bbe5a317a92ba7632720d20cc08c8ed7754e747f5b0dce3af16005ae40bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b679bbe5a317a92ba7632720d20cc08c8ed7754e747f5b0dce3af16005ae40bb", kill_on_drop: false }`
[INFO] [stdout] b679bbe5a317a92ba7632720d20cc08c8ed7754e747f5b0dce3af16005ae40bb
