[INFO] fetching crate utah2 0.1.1...
[INFO] testing utah2-0.1.1 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate utah2 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate utah2 0.1.1
[INFO] finished tweaking crates.io crate utah2 0.1.1
[INFO] tweaked toml for crates.io crate utah2 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate utah2 0.1.1 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.8.2 (available: v0.14.0)
[INFO] [stderr]       Adding ndarray v0.13.1 (available: v0.17.2)
[INFO] [stderr]       Adding ndarray-rand v0.11.0 (available: v0.16.0)
[INFO] [stderr]       Adding num v0.2.1 (available: v0.4.3)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 347163b79fe6eed909e6955313347d07168439f583f5893772babbf5c9011f06
[INFO] running `Command { std: "docker" "start" "-a" "347163b79fe6eed909e6955313347d07168439f583f5893772babbf5c9011f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "347163b79fe6eed909e6955313347d07168439f583f5893772babbf5c9011f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "347163b79fe6eed909e6955313347d07168439f583f5893772babbf5c9011f06", kill_on_drop: false }`
[INFO] [stdout] 347163b79fe6eed909e6955313347d07168439f583f5893772babbf5c9011f06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5b938ccd4a9b3dcd735645c011261f3d6eeb71be099d6af5d0a6b0fcb99ecba
[INFO] running `Command { std: "docker" "start" "-a" "e5b938ccd4a9b3dcd735645c011261f3d6eeb71be099d6af5d0a6b0fcb99ecba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling ndarray-rand v0.11.0
[INFO] [stderr]    Compiling utah2 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::macros::*`
[INFO] [stdout]  --> src/util/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use self::macros::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_error_description_deprecated`
[INFO] [stdout]   --> src/util/error.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 | / error_chain! {
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]  --> src/prelude.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use crate::util::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^ the name `readcsv` in the type namespace is first re-exported here
[INFO] [stdout] 2 | pub use crate::dataframe::*;
[INFO] [stdout] 3 | pub use crate::combinators::*;
[INFO] [stdout]   |         --------------------- but the name `readcsv` in the type namespace is also re-exported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/dataframe.rs:97:35
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stdout]    |                                   ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stdout] 97 +         let d = self.data.map(|x| (*x).clone());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:339:75
[INFO] [stdout]     |
[INFO] [stdout] 339 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout]     |                                                                           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 339 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout] 339 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:372:70
[INFO] [stdout]     |
[INFO] [stdout] 372 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout]     |                                                                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 372 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout] 372 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:382:35
[INFO] [stdout]     |
[INFO] [stdout] 382 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout]     |                                   ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 382 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout] 382 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:410:75
[INFO] [stdout]     |
[INFO] [stdout] 410 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout]     |                                                                           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 410 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout] 410 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:444:70
[INFO] [stdout]     |
[INFO] [stdout] 444 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout]     |                                                                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 444 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout] 444 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:452:35
[INFO] [stdout]     |
[INFO] [stdout] 452 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout]     |                                   ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 452 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout] 452 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:483:75
[INFO] [stdout]     |
[INFO] [stdout] 483 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout]     |                                                                           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 483 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout] 483 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:517:70
[INFO] [stdout]     |
[INFO] [stdout] 517 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout]     |                                                                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 517 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout] 517 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:525:35
[INFO] [stdout]     |
[INFO] [stdout] 525 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout]     |                                   ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 525 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout] 525 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/transform.rs:287:22
[INFO] [stdout]     |
[INFO] [stdout] 287 |             .map(|x| (String::from(*x)))
[INFO] [stdout]     |                      ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 287 -             .map(|x| (String::from(*x)))
[INFO] [stdout] 287 +             .map(|x| String::from(*x))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `features`
[INFO] [stdout]  --> src/implement/mod.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(features = "specialization")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: there is a config with a similar name and different values
[INFO] [stdout]   |
[INFO] [stdout] 4 - #[cfg(features = "specialization")]
[INFO] [stdout] 4 + #[cfg(feature)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `features`
[INFO] [stdout]  --> src/implement/mod.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg(features = "specialization")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: there is a config with a similar name and different values
[INFO] [stdout]   |
[INFO] [stdout] 9 - #[cfg(features = "specialization")]
[INFO] [stdout] 9 + #[cfg(feature)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::impl_constructor_generic::*`
[INFO] [stdout]  --> src/implement/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::impl_constructor_generic::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::impl_empty::*`
[INFO] [stdout]  --> src/implement/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::impl_empty::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::impl_ops_generic::*`
[INFO] [stdout]  --> src/implement/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::impl_ops_generic::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `specialization`
[INFO] [stdout]  --> src/implement/impl_ops_generic.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[cfg(not(feature = "specialization"))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `specialization` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `specialization`
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:235:7
[INFO] [stdout]     |
[INFO] [stdout] 235 | #[cfg(feature = "specialization")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `specialization` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `other`, and `axis` are never read
[INFO] [stdout]    --> src/combinators/aggregate.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub struct Stdev<'a, I: 'a, T: 'a>
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 173 |     data: I,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 174 |     other: Vec<String>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 175 |     axis: UtahAxis,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Stdev` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:241:5
[INFO] [stdout]     |
[INFO] [stdout] 241 |     default fn shape(self) -> (usize, usize) {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:248:5
[INFO] [stdout]     |
[INFO] [stdout] 248 |     default fn select<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> SelectIter<'a, T>
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:271:5
[INFO] [stdout]     |
[INFO] [stdout] 271 |     default fn remove<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> RemoveIter<'a, T>
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 294 |     default fn append<U: ?Sized>(&'a mut self,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     default fn inner_left_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:331:5
[INFO] [stdout]     |
[INFO] [stdout] 331 |     default fn outer_left_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:340:5
[INFO] [stdout]     |
[INFO] [stdout] 340 |     default fn inner_right_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 |     default fn outer_right_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:357:5
[INFO] [stdout]     |
[INFO] [stdout] 357 |     default fn concat(&'a self, other: &'a DataFrame<T>, axis: UtahAxis) -> ConcatIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:376:5
[INFO] [stdout]     |
[INFO] [stdout] 376 |     default fn sumdf(&'a mut self, axis: UtahAxis) -> SumIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:387:5
[INFO] [stdout]     |
[INFO] [stdout] 387 |     default fn map<F>(&'a mut self, f: F, axis: UtahAxis) -> MapDFIter<'a, T, F>
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:404:5
[INFO] [stdout]     |
[INFO] [stdout] 404 |     default fn mean(&'a mut self, axis: UtahAxis) -> MeanIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:418:5
[INFO] [stdout]     |
[INFO] [stdout] 418 |     default fn maxdf(&'a mut self, axis: UtahAxis) -> MaxIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:430:5
[INFO] [stdout]     |
[INFO] [stdout] 430 |     default fn mindf(&'a mut self, axis: UtahAxis) -> MinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:443:5
[INFO] [stdout]     |
[INFO] [stdout] 443 |     default fn impute(&'a mut self, strategy: ImputeStrategy, axis: UtahAxis) -> ImputeIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.45s
[INFO] running `Command { std: "docker" "inspect" "e5b938ccd4a9b3dcd735645c011261f3d6eeb71be099d6af5d0a6b0fcb99ecba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b938ccd4a9b3dcd735645c011261f3d6eeb71be099d6af5d0a6b0fcb99ecba", kill_on_drop: false }`
[INFO] [stdout] e5b938ccd4a9b3dcd735645c011261f3d6eeb71be099d6af5d0a6b0fcb99ecba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3d32ffad9574f4d2904b34c9b5fdcc76d7e6142b7ef08cca768e36df165d630
[INFO] running `Command { std: "docker" "start" "-a" "d3d32ffad9574f4d2904b34c9b5fdcc76d7e6142b7ef08cca768e36df165d630", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `self::macros::*`
[INFO] [stdout]  --> src/util/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use self::macros::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_error_description_deprecated`
[INFO] [stdout]   --> src/util/error.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 | / error_chain! {
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]  --> src/prelude.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use crate::util::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^ the name `readcsv` in the type namespace is first re-exported here
[INFO] [stdout] 2 | pub use crate::dataframe::*;
[INFO] [stdout] 3 | pub use crate::combinators::*;
[INFO] [stdout]   |         --------------------- but the name `readcsv` in the type namespace is also re-exported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/dataframe.rs:97:35
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stdout]    |                                   ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stdout] 97 +         let d = self.data.map(|x| (*x).clone());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:339:75
[INFO] [stdout]     |
[INFO] [stdout] 339 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout]     |                                                                           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 339 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout] 339 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:372:70
[INFO] [stdout]     |
[INFO] [stdout] 372 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout]     |                                                                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 372 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout] 372 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:382:35
[INFO] [stdout]     |
[INFO] [stdout] 382 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout]     |                                   ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 382 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout] 382 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:410:75
[INFO] [stdout]     |
[INFO] [stdout] 410 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout]     |                                                                           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 410 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout] 410 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:444:70
[INFO] [stdout]     |
[INFO] [stdout] 444 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout]     |                                                                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 444 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout] 444 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:452:35
[INFO] [stdout]     |
[INFO] [stdout] 452 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout]     |                                   ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 452 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout] 452 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:483:75
[INFO] [stdout]     |
[INFO] [stdout] 483 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout]     |                                                                           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 483 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout] 483 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:517:70
[INFO] [stdout]     |
[INFO] [stdout] 517 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout]     |                                                                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 517 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout] 517 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:525:35
[INFO] [stdout]     |
[INFO] [stdout] 525 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout]     |                                   ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 525 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout] 525 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/transform.rs:287:22
[INFO] [stdout]     |
[INFO] [stdout] 287 |             .map(|x| (String::from(*x)))
[INFO] [stdout]     |                      ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 287 -             .map(|x| (String::from(*x)))
[INFO] [stdout] 287 +             .map(|x| String::from(*x))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `features`
[INFO] [stdout]  --> src/implement/mod.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(features = "specialization")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: there is a config with a similar name and different values
[INFO] [stdout]   |
[INFO] [stdout] 4 - #[cfg(features = "specialization")]
[INFO] [stdout] 4 + #[cfg(feature)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `features`
[INFO] [stdout]  --> src/implement/mod.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg(features = "specialization")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: there is a config with a similar name and different values
[INFO] [stdout]   |
[INFO] [stdout] 9 - #[cfg(features = "specialization")]
[INFO] [stdout] 9 + #[cfg(feature)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::impl_constructor_generic::*`
[INFO] [stdout]  --> src/implement/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::impl_constructor_generic::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::impl_empty::*`
[INFO] [stdout]  --> src/implement/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::impl_empty::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::impl_ops_generic::*`
[INFO] [stdout]  --> src/implement/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::impl_ops_generic::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `specialization`
[INFO] [stdout]  --> src/implement/impl_ops_generic.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[cfg(not(feature = "specialization"))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `specialization` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `specialization`
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:235:7
[INFO] [stdout]     |
[INFO] [stdout] 235 | #[cfg(feature = "specialization")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `specialization` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `other`, and `axis` are never read
[INFO] [stdout]    --> src/combinators/aggregate.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub struct Stdev<'a, I: 'a, T: 'a>
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 173 |     data: I,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 174 |     other: Vec<String>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 175 |     axis: UtahAxis,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Stdev` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:241:5
[INFO] [stdout]     |
[INFO] [stdout] 241 |     default fn shape(self) -> (usize, usize) {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:248:5
[INFO] [stdout]     |
[INFO] [stdout] 248 |     default fn select<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> SelectIter<'a, T>
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:271:5
[INFO] [stdout]     |
[INFO] [stdout] 271 |     default fn remove<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> RemoveIter<'a, T>
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 294 |     default fn append<U: ?Sized>(&'a mut self,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     default fn inner_left_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:331:5
[INFO] [stdout]     |
[INFO] [stdout] 331 |     default fn outer_left_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:340:5
[INFO] [stdout]     |
[INFO] [stdout] 340 |     default fn inner_right_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 |     default fn outer_right_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:357:5
[INFO] [stdout]     |
[INFO] [stdout] 357 |     default fn concat(&'a self, other: &'a DataFrame<T>, axis: UtahAxis) -> ConcatIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:376:5
[INFO] [stdout]     |
[INFO] [stdout] 376 |     default fn sumdf(&'a mut self, axis: UtahAxis) -> SumIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:387:5
[INFO] [stdout]     |
[INFO] [stdout] 387 |     default fn map<F>(&'a mut self, f: F, axis: UtahAxis) -> MapDFIter<'a, T, F>
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:404:5
[INFO] [stdout]     |
[INFO] [stdout] 404 |     default fn mean(&'a mut self, axis: UtahAxis) -> MeanIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:418:5
[INFO] [stdout]     |
[INFO] [stdout] 418 |     default fn maxdf(&'a mut self, axis: UtahAxis) -> MaxIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:430:5
[INFO] [stdout]     |
[INFO] [stdout] 430 |     default fn mindf(&'a mut self, axis: UtahAxis) -> MinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:443:5
[INFO] [stdout]     |
[INFO] [stdout] 443 |     default fn impute(&'a mut self, strategy: ImputeStrategy, axis: UtahAxis) -> ImputeIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling utah2 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::macros::*`
[INFO] [stdout]  --> src/util/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use self::macros::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_error_description_deprecated`
[INFO] [stdout]   --> src/util/error.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout]  4 | / error_chain! {
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]  --> src/prelude.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use crate::util::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^ the name `readcsv` in the type namespace is first re-exported here
[INFO] [stdout] 2 | pub use crate::dataframe::*;
[INFO] [stdout] 3 | pub use crate::combinators::*;
[INFO] [stdout]   |         --------------------- but the name `readcsv` in the type namespace is also re-exported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/dataframe.rs:97:35
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stdout]    |                                   ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stdout] 97 +         let d = self.data.map(|x| (*x).clone());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:339:75
[INFO] [stdout]     |
[INFO] [stdout] 339 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout]     |                                                                           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 339 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout] 339 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:372:70
[INFO] [stdout]     |
[INFO] [stdout] 372 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout]     |                                                                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 372 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout] 372 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:382:35
[INFO] [stdout]     |
[INFO] [stdout] 382 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout]     |                                   ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 382 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout] 382 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:410:75
[INFO] [stdout]     |
[INFO] [stdout] 410 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout]     |                                                                           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 410 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout] 410 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:444:70
[INFO] [stdout]     |
[INFO] [stdout] 444 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout]     |                                                                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 444 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout] 444 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:452:35
[INFO] [stdout]     |
[INFO] [stdout] 452 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout]     |                                   ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 452 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout] 452 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:483:75
[INFO] [stdout]     |
[INFO] [stdout] 483 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout]     |                                                                           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 483 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stdout] 483 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:517:70
[INFO] [stdout]     |
[INFO] [stdout] 517 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout]     |                                                                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 517 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stdout] 517 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/process.rs:525:35
[INFO] [stdout]     |
[INFO] [stdout] 525 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout]     |                                   ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 525 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stdout] 525 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/combinators/transform.rs:287:22
[INFO] [stdout]     |
[INFO] [stdout] 287 |             .map(|x| (String::from(*x)))
[INFO] [stdout]     |                      ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 287 -             .map(|x| (String::from(*x)))
[INFO] [stdout] 287 +             .map(|x| String::from(*x))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `features`
[INFO] [stdout]  --> src/implement/mod.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(features = "specialization")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: there is a config with a similar name and different values
[INFO] [stdout]   |
[INFO] [stdout] 4 - #[cfg(features = "specialization")]
[INFO] [stdout] 4 + #[cfg(feature)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `features`
[INFO] [stdout]  --> src/implement/mod.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg(features = "specialization")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] help: there is a config with a similar name and different values
[INFO] [stdout]   |
[INFO] [stdout] 9 - #[cfg(features = "specialization")]
[INFO] [stdout] 9 + #[cfg(feature)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::impl_constructor_generic::*`
[INFO] [stdout]  --> src/implement/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::impl_constructor_generic::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::impl_empty::*`
[INFO] [stdout]  --> src/implement/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::impl_empty::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::impl_ops_generic::*`
[INFO] [stdout]  --> src/implement/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::impl_ops_generic::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `specialization`
[INFO] [stdout]  --> src/implement/impl_ops_generic.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[cfg(not(feature = "specialization"))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]   |
[INFO] [stdout]   = note: no expected values for `feature`
[INFO] [stdout]   = help: consider adding `specialization` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `specialization`
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:235:7
[INFO] [stdout]     |
[INFO] [stdout] 235 | #[cfg(feature = "specialization")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `specialization` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `other`, and `axis` are never read
[INFO] [stdout]    --> src/combinators/aggregate.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub struct Stdev<'a, I: 'a, T: 'a>
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 173 |     data: I,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 174 |     other: Vec<String>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 175 |     axis: UtahAxis,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Stdev` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:241:5
[INFO] [stdout]     |
[INFO] [stdout] 241 |     default fn shape(self) -> (usize, usize) {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:248:5
[INFO] [stdout]     |
[INFO] [stdout] 248 |     default fn select<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> SelectIter<'a, T>
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:271:5
[INFO] [stdout]     |
[INFO] [stdout] 271 |     default fn remove<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> RemoveIter<'a, T>
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:294:5
[INFO] [stdout]     |
[INFO] [stdout] 294 |     default fn append<U: ?Sized>(&'a mut self,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     default fn inner_left_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:331:5
[INFO] [stdout]     |
[INFO] [stdout] 331 |     default fn outer_left_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:340:5
[INFO] [stdout]     |
[INFO] [stdout] 340 |     default fn inner_right_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 |     default fn outer_right_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:357:5
[INFO] [stdout]     |
[INFO] [stdout] 357 |     default fn concat(&'a self, other: &'a DataFrame<T>, axis: UtahAxis) -> ConcatIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:376:5
[INFO] [stdout]     |
[INFO] [stdout] 376 |     default fn sumdf(&'a mut self, axis: UtahAxis) -> SumIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:387:5
[INFO] [stdout]     |
[INFO] [stdout] 387 |     default fn map<F>(&'a mut self, f: F, axis: UtahAxis) -> MapDFIter<'a, T, F>
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:404:5
[INFO] [stdout]     |
[INFO] [stdout] 404 |     default fn mean(&'a mut self, axis: UtahAxis) -> MeanIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:418:5
[INFO] [stdout]     |
[INFO] [stdout] 418 |     default fn maxdf(&'a mut self, axis: UtahAxis) -> MaxIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:430:5
[INFO] [stdout]     |
[INFO] [stdout] 430 |     default fn mindf(&'a mut self, axis: UtahAxis) -> MinIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> src/implement/impl_ops_generic.rs:443:5
[INFO] [stdout]     |
[INFO] [stdout] 443 |     default fn impute(&'a mut self, strategy: ImputeStrategy, axis: UtahAxis) -> ImputeIter<'a, T> {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "d3d32ffad9574f4d2904b34c9b5fdcc76d7e6142b7ef08cca768e36df165d630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d32ffad9574f4d2904b34c9b5fdcc76d7e6142b7ef08cca768e36df165d630", kill_on_drop: false }`
[INFO] [stdout] d3d32ffad9574f4d2904b34c9b5fdcc76d7e6142b7ef08cca768e36df165d630
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3546cd18996f6f8a68a1ad795c5d38ec0c8a63df52bb25ba268473cd020ba142
[INFO] running `Command { std: "docker" "start" "-a" "3546cd18996f6f8a68a1ad795c5d38ec0c8a63df52bb25ba268473cd020ba142", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self::macros::*`
[INFO] [stderr]  --> src/util/mod.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub use self::macros::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `has_error_description_deprecated`
[INFO] [stderr]   --> src/util/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr]  4 | / error_chain! {
[INFO] [stderr] ...  |
[INFO] [stderr] 48 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stderr]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]    = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]    = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: ambiguous glob re-exports
[INFO] [stderr]  --> src/prelude.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub use crate::util::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^ the name `readcsv` in the type namespace is first re-exported here
[INFO] [stderr] 2 | pub use crate::dataframe::*;
[INFO] [stderr] 3 | pub use crate::combinators::*;
[INFO] [stderr]   |         --------------------- but the name `readcsv` in the type namespace is also re-exported here
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(ambiguous_glob_reexports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> src/dataframe.rs:97:35
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stderr]    |                                   ^            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 97 -         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stderr] 97 +         let d = self.data.map(|x| (*x).clone());
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:339:75
[INFO] [stderr]     |
[INFO] [stderr] 339 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr]     |                                                                           ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 339 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr] 339 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:372:70
[INFO] [stderr]     |
[INFO] [stderr] 372 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr]     |                                                                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 372 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr] 372 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:382:35
[INFO] [stderr]     |
[INFO] [stderr] 382 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr]     |                                   ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 382 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr] 382 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:410:75
[INFO] [stderr]     |
[INFO] [stderr] 410 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr]     |                                                                           ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 410 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr] 410 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:444:70
[INFO] [stderr]     |
[INFO] [stderr] 444 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr]     |                                                                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 444 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr] 444 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:452:35
[INFO] [stderr]     |
[INFO] [stderr] 452 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr]     |                                   ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 452 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr] 452 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:483:75
[INFO] [stderr]     |
[INFO] [stderr] 483 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr]     |                                                                           ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 483 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr] 483 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:517:70
[INFO] [stderr]     |
[INFO] [stderr] 517 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr]     |                                                                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 517 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr] 517 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:525:35
[INFO] [stderr]     |
[INFO] [stderr] 525 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr]     |                                   ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 525 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr] 525 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/transform.rs:287:22
[INFO] [stderr]     |
[INFO] [stderr] 287 |             .map(|x| (String::from(*x)))
[INFO] [stderr]     |                      ^                ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 287 -             .map(|x| (String::from(*x)))
[INFO] [stderr] 287 +             .map(|x| String::from(*x))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `features`
[INFO] [stderr]  --> src/implement/mod.rs:4:7
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[cfg(features = "specialization")]
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] help: there is a config with a similar name and different values
[INFO] [stderr]   |
[INFO] [stderr] 4 - #[cfg(features = "specialization")]
[INFO] [stderr] 4 + #[cfg(feature)]
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `features`
[INFO] [stderr]  --> src/implement/mod.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[cfg(features = "specialization")]
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] help: there is a config with a similar name and different values
[INFO] [stderr]   |
[INFO] [stderr] 9 - #[cfg(features = "specialization")]
[INFO] [stderr] 9 + #[cfg(feature)]
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::impl_constructor_generic::*`
[INFO] [stderr]  --> src/implement/mod.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub use self::impl_constructor_generic::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::impl_empty::*`
[INFO] [stderr]  --> src/implement/mod.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub use self::impl_empty::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::impl_ops_generic::*`
[INFO] [stderr]  --> src/implement/mod.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub use self::impl_ops_generic::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `specialization`
[INFO] [stderr]  --> src/implement/impl_ops_generic.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[cfg(not(feature = "specialization"))]
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]   |
[INFO] [stderr]   = note: no expected values for `feature`
[INFO] [stderr]   = help: consider adding `specialization` as a feature in `Cargo.toml`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `specialization`
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:235:7
[INFO] [stderr]     |
[INFO] [stderr] 235 | #[cfg(feature = "specialization")]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `specialization` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: fields `data`, `other`, and `axis` are never read
[INFO] [stderr]    --> src/combinators/aggregate.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 169 | pub struct Stdev<'a, I: 'a, T: 'a>
[INFO] [stderr]     |            ----- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 173 |     data: I,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 174 |     other: Vec<String>,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 175 |     axis: UtahAxis,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Stdev` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:241:5
[INFO] [stderr]     |
[INFO] [stderr] 241 |     default fn shape(self) -> (usize, usize) {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:248:5
[INFO] [stderr]     |
[INFO] [stderr] 248 |     default fn select<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> SelectIter<'a, T>
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:271:5
[INFO] [stderr]     |
[INFO] [stderr] 271 |     default fn remove<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> RemoveIter<'a, T>
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:294:5
[INFO] [stderr]     |
[INFO] [stderr] 294 |     default fn append<U: ?Sized>(&'a mut self,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 |     default fn inner_left_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:331:5
[INFO] [stderr]     |
[INFO] [stderr] 331 |     default fn outer_left_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:340:5
[INFO] [stderr]     |
[INFO] [stderr] 340 |     default fn inner_right_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:349:5
[INFO] [stderr]     |
[INFO] [stderr] 349 |     default fn outer_right_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:357:5
[INFO] [stderr]     |
[INFO] [stderr] 357 |     default fn concat(&'a self, other: &'a DataFrame<T>, axis: UtahAxis) -> ConcatIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:376:5
[INFO] [stderr]     |
[INFO] [stderr] 376 |     default fn sumdf(&'a mut self, axis: UtahAxis) -> SumIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:387:5
[INFO] [stderr]     |
[INFO] [stderr] 387 |     default fn map<F>(&'a mut self, f: F, axis: UtahAxis) -> MapDFIter<'a, T, F>
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:404:5
[INFO] [stderr]     |
[INFO] [stderr] 404 |     default fn mean(&'a mut self, axis: UtahAxis) -> MeanIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:418:5
[INFO] [stderr]     |
[INFO] [stderr] 418 |     default fn maxdf(&'a mut self, axis: UtahAxis) -> MaxIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:430:5
[INFO] [stderr]     |
[INFO] [stderr] 430 |     default fn mindf(&'a mut self, axis: UtahAxis) -> MinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:443:5
[INFO] [stderr]     |
[INFO] [stderr] 443 |     default fn impute(&'a mut self, strategy: ImputeStrategy, axis: UtahAxis) -> ImputeIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: `utah2` (lib) generated 37 warnings (run `cargo fix --lib -p utah2` to apply 15 suggestions)
[INFO] [stderr] warning: `utah2` (lib test) generated 37 warnings (37 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/utah2-889aabf4d3fe2493)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests utah2
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> src/dataframe.rs:97:35
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stderr]    |                                   ^            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 97 -         let d = self.data.map(|x| ((*x).clone()));
[INFO] [stderr] 97 +         let d = self.data.map(|x| (*x).clone());
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:339:75
[INFO] [stderr]     |
[INFO] [stderr] 339 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr]     |                                                                           ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 339 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr] 339 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:372:70
[INFO] [stderr]     |
[INFO] [stderr] 372 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr]     |                                                                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 372 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr] 372 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:382:35
[INFO] [stderr]     |
[INFO] [stderr] 382 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr]     |                                   ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 382 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr] 382 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:410:75
[INFO] [stderr]     |
[INFO] [stderr] 410 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr]     |                                                                           ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 410 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr] 410 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:444:70
[INFO] [stderr]     |
[INFO] [stderr] 444 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr]     |                                                                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 444 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr] 444 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:452:35
[INFO] [stderr]     |
[INFO] [stderr] 452 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr]     |                                   ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 452 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr] 452 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:483:75
[INFO] [stderr]     |
[INFO] [stderr] 483 |         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr]     |                                                                           ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 483 -         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone()));
[INFO] [stderr] 483 +         let d = Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone());
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:517:70
[INFO] [stderr]     |
[INFO] [stderr] 517 |         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr]     |                                                                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 517 -         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| ((*x).clone())))
[INFO] [stderr] 517 +         Ok(Array::from_shape_vec((nrows, ncols), c).unwrap().map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/process.rs:525:35
[INFO] [stderr]     |
[INFO] [stderr] 525 |         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr]     |                                   ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 525 -         Ok(Array::from(c).map(|x| ((*x).clone())))
[INFO] [stderr] 525 +         Ok(Array::from(c).map(|x| (*x).clone()))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/combinators/transform.rs:287:22
[INFO] [stderr]     |
[INFO] [stderr] 287 |             .map(|x| (String::from(*x)))
[INFO] [stderr]     |                      ^                ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 287 -             .map(|x| (String::from(*x)))
[INFO] [stderr] 287 +             .map(|x| String::from(*x))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:241:5
[INFO] [stderr]     |
[INFO] [stderr] 241 |     default fn shape(self) -> (usize, usize) {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:248:5
[INFO] [stderr]     |
[INFO] [stderr] 248 |     default fn select<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> SelectIter<'a, T>
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:271:5
[INFO] [stderr]     |
[INFO] [stderr] 271 |     default fn remove<U: ?Sized>(&'a self, names: &'a [&'a U], axis: UtahAxis) -> RemoveIter<'a, T>
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:294:5
[INFO] [stderr]     |
[INFO] [stderr] 294 |     default fn append<U: ?Sized>(&'a mut self,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 |     default fn inner_left_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:331:5
[INFO] [stderr]     |
[INFO] [stderr] 331 |     default fn outer_left_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:340:5
[INFO] [stderr]     |
[INFO] [stderr] 340 |     default fn inner_right_join(&'a self, other: &'a DataFrame<T>) -> InnerJoinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:349:5
[INFO] [stderr]     |
[INFO] [stderr] 349 |     default fn outer_right_join(&'a self, other: &'a DataFrame<T>) -> OuterJoinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:357:5
[INFO] [stderr]     |
[INFO] [stderr] 357 |     default fn concat(&'a self, other: &'a DataFrame<T>, axis: UtahAxis) -> ConcatIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:376:5
[INFO] [stderr]     |
[INFO] [stderr] 376 |     default fn sumdf(&'a mut self, axis: UtahAxis) -> SumIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:387:5
[INFO] [stderr]     |
[INFO] [stderr] 387 |     default fn map<F>(&'a mut self, f: F, axis: UtahAxis) -> MapDFIter<'a, T, F>
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:404:5
[INFO] [stderr]     |
[INFO] [stderr] 404 |     default fn mean(&'a mut self, axis: UtahAxis) -> MeanIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:418:5
[INFO] [stderr]     |
[INFO] [stderr] 418 |     default fn maxdf(&'a mut self, axis: UtahAxis) -> MaxIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:430:5
[INFO] [stderr]     |
[INFO] [stderr] 430 |     default fn mindf(&'a mut self, axis: UtahAxis) -> MinIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: specialization is experimental
[INFO] [stderr]    --> src/implement/impl_ops_generic.rs:443:5
[INFO] [stderr]     |
[INFO] [stderr] 443 |     default fn impute(&'a mut self, strategy: ImputeStrategy, axis: UtahAxis) -> ImputeIter<'a, T> {
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stderr]     = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stderr]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stderr]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] test src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::df_iter (line 148) ... FAILED
[INFO] [stdout] test src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::columns (line 85) ... FAILED
[INFO] [stdout] test src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::index (line 110) ... FAILED
[INFO] [stdout] test src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::new (line 13) ... FAILED
[INFO] [stdout] test src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::from_array (line 52) ... FAILED
[INFO] [stdout] test src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::index (line 119) ... FAILED
[INFO] [stdout] test src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::df_iter_mut (line 180) ... FAILED
[INFO] [stdout] test src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::new (line 21) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::df_iter (line 148) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `utah` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | use utah::prelude::*;
[INFO] [stdout]     |     ^^^^ use of unresolved module or unlinked crate `utah`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 149 | use utah2::prelude::*;
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `arr2` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:150:9
[INFO] [stdout]     |
[INFO] [stdout] 150 | let a = arr2(&[[2.0, 7.0], [3.0, 4.0]]);
[INFO] [stdout]     |         ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 148 + use ndarray::arr2;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `DataFrame` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:151:10
[INFO] [stdout]     |
[INFO] [stdout] 151 | let df : DataFrame<f64> = DataFrame::new(a).index(&["1", "2"]).unwrap().columns(&["a", "b"]).unwrap();
[INFO] [stdout]     |          ^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 148 + use utah2::DataFrame;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `DataFrame` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:151:27
[INFO] [stdout]     |
[INFO] [stdout] 151 | let df : DataFrame<f64> = DataFrame::new(a).index(&["1", "2"]).unwrap().columns(&["a", "b"]).unwrap();
[INFO] [stdout]     |                           ^^^^^^^^^ use of undeclared type `DataFrame`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 148 + use utah2::DataFrame;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `UtahAxis` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:152:26
[INFO] [stdout]     |
[INFO] [stdout] 152 | let df_iter = df.df_iter(UtahAxis::Row);
[INFO] [stdout]     |                          ^^^^^^^^ use of undeclared type `UtahAxis`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 148 + use utah2::UtahAxis;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::columns (line 85) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `utah` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | use utah::prelude::*;
[INFO] [stdout]    |     ^^^^ use of unresolved module or unlinked crate `utah`
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 86 | use utah2::prelude::*;
[INFO] [stdout]    |         +
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `arr2` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 | let a = arr2(&[[2.0, 7.0], [3.0, 4.0]]);
[INFO] [stdout]    |         ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 85 + use ndarray::arr2;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `DataFrame` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 | let df : Result<DataFrame<f64>> = DataFrame::new(a).columns(&["a", "b"]);
[INFO] [stdout]    |                 ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 85 + use utah2::DataFrame;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `DataFrame` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:88:35
[INFO] [stdout]    |
[INFO] [stdout] 88 | let df : Result<DataFrame<f64>> = DataFrame::new(a).columns(&["a", "b"]);
[INFO] [stdout]    |                                   ^^^^^^^^^ use of undeclared type `DataFrame`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 85 + use utah2::DataFrame;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: enum takes 2 generic arguments but 1 generic argument was supplied
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 | let df : Result<DataFrame<f64>> = DataFrame::new(a).columns(&["a", "b"]);
[INFO] [stdout]    |          ^^^^^^ -------------- supplied 1 generic argument
[INFO] [stdout]    |          |
[INFO] [stdout]    |          expected 2 generic arguments
[INFO] [stdout]    |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]    |
[INFO] [stdout] 88 | let df : Result<DataFrame<f64>, E> = DataFrame::new(a).columns(&["a", "b"]);
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::index (line 110) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `utah` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | use utah::prelude::*;
[INFO] [stdout]     |     ^^^^ use of unresolved module or unlinked crate `utah`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 111 | use utah2::prelude::*;
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `arr2` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 | let a = arr2(&[[2.0, 7.0], [3.0, 4.0]]);
[INFO] [stdout]     |         ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 110 + use ndarray::arr2;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `DataFrame` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 | let df : Result<DataFrame<f64>> = DataFrame::new(a).index(&["1", "2"]);
[INFO] [stdout]     |                 ^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 110 + use utah2::DataFrame;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `DataFrame` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:113:35
[INFO] [stdout]     |
[INFO] [stdout] 113 | let df : Result<DataFrame<f64>> = DataFrame::new(a).index(&["1", "2"]);
[INFO] [stdout]     |                                   ^^^^^^^^^ use of undeclared type `DataFrame`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 110 + use utah2::DataFrame;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: enum takes 2 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 | let df : Result<DataFrame<f64>> = DataFrame::new(a).index(&["1", "2"]);
[INFO] [stdout]     |          ^^^^^^ -------------- supplied 1 generic argument
[INFO] [stdout]     |          |
[INFO] [stdout]     |          expected 2 generic arguments
[INFO] [stdout]     |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]     |
[INFO] [stdout] 113 | let df : Result<DataFrame<f64>, E> = DataFrame::new(a).index(&["1", "2"]);
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::new (line 13) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `utah` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use utah::prelude::*;
[INFO] [stdout]    |     ^^^^ use of unresolved module or unlinked crate `utah`
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 14 | use utah2::prelude::*;
[INFO] [stdout]    |         +
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `arr2` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | let a = arr2(&[[2.0, 7.0], [3.0, 4.0]]);
[INFO] [stdout]    |         ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 13 + use ndarray::arr2;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `DataFrame` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | let df : DataFrame<f64> = DataFrame::new(a);
[INFO] [stdout]    |          ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 13 + use utah2::DataFrame;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `DataFrame` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:16:27
[INFO] [stdout]    |
[INFO] [stdout] 16 | let df : DataFrame<f64> = DataFrame::new(a);
[INFO] [stdout]    |                           ^^^^^^^^^ use of undeclared type `DataFrame`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 13 + use utah2::DataFrame;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::from_array (line 52) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `utah` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | use utah::prelude::*;
[INFO] [stdout]    |     ^^^^ use of unresolved module or unlinked crate `utah`
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 53 | use utah2::prelude::*;
[INFO] [stdout]    |         +
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `arr1` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | let a = arr1(&[2.0, 7.0]);
[INFO] [stdout]    |         ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 52 + use ndarray::arr1;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `DataFrame` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:55:10
[INFO] [stdout]    |
[INFO] [stdout] 55 | let df : DataFrame<f64> = DataFrame::from_array(a, UtahAxis::Column);
[INFO] [stdout]    |          ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 52 + use utah2::DataFrame;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `DataFrame` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:55:27
[INFO] [stdout]    |
[INFO] [stdout] 55 | let df : DataFrame<f64> = DataFrame::from_array(a, UtahAxis::Column);
[INFO] [stdout]    |                           ^^^^^^^^^ use of undeclared type `DataFrame`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 52 + use utah2::DataFrame;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `UtahAxis` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:55:52
[INFO] [stdout]    |
[INFO] [stdout] 55 | let df : DataFrame<f64> = DataFrame::from_array(a, UtahAxis::Column);
[INFO] [stdout]    |                                                    ^^^^^^^^ use of undeclared type `UtahAxis`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 52 + use utah2::UtahAxis;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::index (line 119) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `utah` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | use utah::prelude::*;
[INFO] [stdout]     |     ^^^^ use of unresolved module or unlinked crate `utah`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 120 | use utah2::prelude::*;
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `arr2` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 | let a = arr2(&[[2.0, 7.0], [3.0, 4.0]]);
[INFO] [stdout]     |         ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 119 + use ndarray::arr2;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `DataFrame` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:122:17
[INFO] [stdout]     |
[INFO] [stdout] 122 | let df : Result<DataFrame<f64>> = DataFrame::new(a).index(&["1", "2"]).unwrap().columns(&["a", "b"]);
[INFO] [stdout]     |                 ^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 119 + use utah2::DataFrame;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `DataFrame` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:122:35
[INFO] [stdout]     |
[INFO] [stdout] 122 | let df : Result<DataFrame<f64>> = DataFrame::new(a).index(&["1", "2"]).unwrap().columns(&["a", "b"]);
[INFO] [stdout]     |                                   ^^^^^^^^^ use of undeclared type `DataFrame`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 119 + use utah2::DataFrame;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: enum takes 2 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:122:10
[INFO] [stdout]     |
[INFO] [stdout] 122 | let df : Result<DataFrame<f64>> = DataFrame::new(a).index(&["1", "2"]).unwrap().columns(&["a", "b"]);
[INFO] [stdout]     |          ^^^^^^ -------------- supplied 1 generic argument
[INFO] [stdout]     |          |
[INFO] [stdout]     |          expected 2 generic arguments
[INFO] [stdout]     |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]     |
[INFO] [stdout] 122 | let df : Result<DataFrame<f64>, E> = DataFrame::new(a).index(&["1", "2"]).unwrap().columns(&["a", "b"]);
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::df_iter_mut (line 180) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `utah` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 | use utah::prelude::*;
[INFO] [stdout]     |     ^^^^ use of unresolved module or unlinked crate `utah`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 181 | use utah2::prelude::*;
[INFO] [stdout]     |         +
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `arr2` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 | let a = arr2(&[[2.0, 7.0], [3.0, 4.0]]);
[INFO] [stdout]     |         ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 180 + use ndarray::arr2;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `DataFrame` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:183:14
[INFO] [stdout]     |
[INFO] [stdout] 183 | let mut df : DataFrame<f64> = DataFrame::new(a);
[INFO] [stdout]     |              ^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 180 + use utah2::DataFrame;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `DataFrame` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:183:31
[INFO] [stdout]     |
[INFO] [stdout] 183 | let mut df : DataFrame<f64> = DataFrame::new(a);
[INFO] [stdout]     |                               ^^^^^^^^^ use of undeclared type `DataFrame`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 180 + use utah2::DataFrame;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `UtahAxis` in this scope
[INFO] [stdout]    --> src/implement/impl_constructor_generic.rs:184:34
[INFO] [stdout]     |
[INFO] [stdout] 184 | let df_iter_mut = df.df_iter_mut(UtahAxis::Column);
[INFO] [stdout]     |                                  ^^^^^^^^ use of undeclared type `UtahAxis`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 180 + use utah2::UtahAxis;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::new (line 21) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `utah` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use utah::prelude::*;
[INFO] [stdout]    |     ^^^^ use of unresolved module or unlinked crate `utah`
[INFO] [stdout]    |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 22 | use utah2::prelude::*;
[INFO] [stdout]    |         +
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `arr2` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | let a = arr2(&[[InnerType::Float(2.0), InnerType::Str("ak".into())],
[INFO] [stdout]    |         ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 21 + use ndarray::arr2;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `DataFrame` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 | let df : DataFrame<InnerType> = DataFrame::new(a);
[INFO] [stdout]    |          ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 21 + use utah2::DataFrame;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `InnerType` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:25:20
[INFO] [stdout]    |
[INFO] [stdout] 25 | let df : DataFrame<InnerType> = DataFrame::new(a);
[INFO] [stdout]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_implement_impl_constructor_generic_rs_21_0<InnerType>() {
[INFO] [stdout]    |                                                                                                     +++++++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `DataFrame` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 | let df : DataFrame<InnerType> = DataFrame::new(a);
[INFO] [stdout]    |                                 ^^^^^^^^^ use of undeclared type `DataFrame`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 21 + use utah2::DataFrame;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `InnerType` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | let a = arr2(&[[InnerType::Float(2.0), InnerType::Str("ak".into())],
[INFO] [stdout]    |                 ^^^^^^^^^ use of undeclared type `InnerType`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `InnerType` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:23:40
[INFO] [stdout]    |
[INFO] [stdout] 23 | let a = arr2(&[[InnerType::Float(2.0), InnerType::Str("ak".into())],
[INFO] [stdout]    |                                        ^^^^^^^^^ use of undeclared type `InnerType`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `InnerType` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                [InnerType::Int32(6), InnerType::Int64(10)]]);
[INFO] [stdout]    |                 ^^^^^^^^^ use of undeclared type `InnerType`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `InnerType` in this scope
[INFO] [stdout]   --> src/implement/impl_constructor_generic.rs:24:38
[INFO] [stdout]    |
[INFO] [stdout] 24 |                [InnerType::Int32(6), InnerType::Int64(10)]]);
[INFO] [stdout]    |                                      ^^^^^^^^^ use of undeclared type `InnerType`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::columns (line 85)
[INFO] [stdout]     src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::df_iter (line 148)
[INFO] [stdout]     src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::df_iter_mut (line 180)
[INFO] [stdout]     src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::from_array (line 52)
[INFO] [stdout]     src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::index (line 110)
[INFO] [stdout]     src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::index (line 119)
[INFO] [stdout]     src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::new (line 13)
[INFO] [stdout]     src/implement/impl_constructor_generic.rs - implement::impl_constructor_generic::DataFrame<T>::new (line 21)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 8 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "3546cd18996f6f8a68a1ad795c5d38ec0c8a63df52bb25ba268473cd020ba142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3546cd18996f6f8a68a1ad795c5d38ec0c8a63df52bb25ba268473cd020ba142", kill_on_drop: false }`
[INFO] [stdout] 3546cd18996f6f8a68a1ad795c5d38ec0c8a63df52bb25ba268473cd020ba142
