[INFO] fetching crate gradients 0.3.4...
[INFO] testing gradients-0.3.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate gradients 0.3.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate gradients 0.3.4
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate gradients 0.3.4
[INFO] tweaked toml for crates.io crate gradients 0.3.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gradients 0.3.4 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gradients 0.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded purpur v0.1.0
[INFO] [stderr]   Downloaded png v0.17.5
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded quad-rand v0.2.1
[INFO] [stderr]   Downloaded deflate v1.0.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c94c9fa92ab8b57ac566f4a1acdf0eb1b8bcf880b096d19e82bf469b026ee9d
[INFO] running `Command { std: "docker" "start" "-a" "0c94c9fa92ab8b57ac566f4a1acdf0eb1b8bcf880b096d19e82bf469b026ee9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c94c9fa92ab8b57ac566f4a1acdf0eb1b8bcf880b096d19e82bf469b026ee9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c94c9fa92ab8b57ac566f4a1acdf0eb1b8bcf880b096d19e82bf469b026ee9d", kill_on_drop: false }`
[INFO] [stdout] 0c94c9fa92ab8b57ac566f4a1acdf0eb1b8bcf880b096d19e82bf469b026ee9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e33aef9861d3cc0d751388977cb06eb06ab481877d9d99be294231c6ea1e22d6
[INFO] running `Command { std: "docker" "start" "-a" "e33aef9861d3cc0d751388977cb06eb06ab481877d9d99be294231c6ea1e22d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling bytemuck v1.9.0
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling jpeg-decoder v0.2.4
[INFO] [stderr]    Compiling custos v0.5.0
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling png v0.17.5
[INFO] [stderr]    Compiling custos-math v0.5.0
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling image v0.24.1
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling gradients-derive v0.3.4
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling purpur v0.1.0
[INFO] [stderr]    Compiling gradients v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/lib.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub use custos::*;
[INFO] [stdout]    |         ^^^^^^^^^ the name `cpu` in the type namespace is first re-exported here
[INFO] [stdout]  9 | use custos::number::Float;
[INFO] [stdout] 10 | pub use custos_math::*;
[INFO] [stdout]    |         -------------- but the name `cpu` 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: ambiguous glob re-exports
[INFO] [stdout]   --> src/lib.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub use custos::*;
[INFO] [stdout]    |         ^^^^^^^^^ the name `cuda` in the type namespace is first re-exported here
[INFO] [stdout]  9 | use custos::number::Float;
[INFO] [stdout] 10 | pub use custos_math::*;
[INFO] [stdout]    |         -------------- but the name `cuda` in the type namespace is also re-exported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/lib.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub use custos::*;
[INFO] [stdout]    |         ^^^^^^^^^ the name `opencl` in the type namespace is first re-exported here
[INFO] [stdout]  9 | use custos::number::Float;
[INFO] [stdout] 10 | pub use custos_math::*;
[INFO] [stdout]    |         -------------- but the name `opencl` in the type namespace is also re-exported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     device: &D,
[INFO] [stdout]    |             ^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 70 | ) -> (Matrix<f32>, Matrix<f32>) {
[INFO] [stdout]    |       ^^^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |       |
[INFO] [stdout]    |       the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 70 | ) -> (Matrix<'_, f32>, Matrix<'_, f32>) {
[INFO] [stdout]    |              +++              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |     device: &D,
[INFO] [stdout]    |             ^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 88 | ) -> (Matrix<T>, Matrix<T>) {
[INFO] [stdout]    |       ^^^^^^^^^  ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |       |
[INFO] [stdout]    |       the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 88 | ) -> (Matrix<'_, T>, Matrix<'_, T>) {
[INFO] [stdout]    |              +++            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/onehot.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn onehot(&self, matrix: &Matrix<T>) -> Matrix<T>;
[INFO] [stdout]    |               ^^^^^                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn onehot(&self, matrix: &Matrix<T>) -> Matrix<'_, T>;
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/onehot.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn onehot(&self, matrix: &Matrix<T>) -> Matrix<T> {
[INFO] [stdout]    |               ^^^^^                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn onehot(&self, matrix: &Matrix<T>) -> Matrix<'_, T> {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/onehot.rs:45:15
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn onehot(&self, x: &Matrix<T>) -> Matrix<T> {
[INFO] [stdout]    |               ^^^^^                    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn onehot(&self, x: &Matrix<T>) -> Matrix<'_, T> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/onehot.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn onehot(&self, x: &Matrix<T>) -> Matrix<T> {
[INFO] [stdout]    |               ^^^^^                    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn onehot(&self, x: &Matrix<T>) -> Matrix<'_, T> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.83s
[INFO] running `Command { std: "docker" "inspect" "e33aef9861d3cc0d751388977cb06eb06ab481877d9d99be294231c6ea1e22d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e33aef9861d3cc0d751388977cb06eb06ab481877d9d99be294231c6ea1e22d6", kill_on_drop: false }`
[INFO] [stdout] e33aef9861d3cc0d751388977cb06eb06ab481877d9d99be294231c6ea1e22d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c15eb1748ca16db1ed7b43e73d46532a699951bf4189fd1c13d326ec59bbea2
[INFO] running `Command { std: "docker" "start" "-a" "8c15eb1748ca16db1ed7b43e73d46532a699951bf4189fd1c13d326ec59bbea2", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling sapp-linux v0.1.14
[INFO] [stderr]    Compiling once_cell v1.14.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling ttf-parser v0.15.2
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling macroquad_macro v0.1.7
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling quad-rand v0.2.1
[INFO] [stderr]    Compiling glam v0.20.5
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stdout] error[E0635]: unknown feature `stdsimd`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ahash-0.7.6/src/lib.rs:33:42
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![cfg_attr(feature = "stdsimd", feature(stdsimd))]
[INFO] [stdout]    |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/lib.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub use custos::*;
[INFO] [stdout]    |         ^^^^^^^^^ the name `cpu` in the type namespace is first re-exported here
[INFO] [stdout]  9 | use custos::number::Float;
[INFO] [stdout] 10 | pub use custos_math::*;
[INFO] [stdout]    |         -------------- but the name `cpu` 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: ambiguous glob re-exports
[INFO] [stdout]   --> src/lib.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub use custos::*;
[INFO] [stdout]    |         ^^^^^^^^^ the name `cuda` in the type namespace is first re-exported here
[INFO] [stdout]  9 | use custos::number::Float;
[INFO] [stdout] 10 | pub use custos_math::*;
[INFO] [stdout]    |         -------------- but the name `cuda` in the type namespace is also re-exported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous glob re-exports
[INFO] [stdout]   --> src/lib.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub use custos::*;
[INFO] [stdout]    |         ^^^^^^^^^ the name `opencl` in the type namespace is first re-exported here
[INFO] [stdout]  9 | use custos::number::Float;
[INFO] [stdout] 10 | pub use custos_math::*;
[INFO] [stdout]    |         -------------- but the name `opencl` in the type namespace is also re-exported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     device: &D,
[INFO] [stdout]    |             ^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 70 | ) -> (Matrix<f32>, Matrix<f32>) {
[INFO] [stdout]    |       ^^^^^^^^^^^  ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |       |
[INFO] [stdout]    |       the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 70 | ) -> (Matrix<'_, f32>, Matrix<'_, f32>) {
[INFO] [stdout]    |              +++              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |     device: &D,
[INFO] [stdout]    |             ^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 88 | ) -> (Matrix<T>, Matrix<T>) {
[INFO] [stdout]    |       ^^^^^^^^^  ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |       |
[INFO] [stdout]    |       the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 88 | ) -> (Matrix<'_, T>, Matrix<'_, T>) {
[INFO] [stdout]    |              +++            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/onehot.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn onehot(&self, matrix: &Matrix<T>) -> Matrix<T>;
[INFO] [stdout]    |               ^^^^^                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn onehot(&self, matrix: &Matrix<T>) -> Matrix<'_, T>;
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/onehot.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn onehot(&self, matrix: &Matrix<T>) -> Matrix<T> {
[INFO] [stdout]    |               ^^^^^                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn onehot(&self, matrix: &Matrix<T>) -> Matrix<'_, T> {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/onehot.rs:45:15
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn onehot(&self, x: &Matrix<T>) -> Matrix<T> {
[INFO] [stdout]    |               ^^^^^                    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn onehot(&self, x: &Matrix<T>) -> Matrix<'_, T> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/onehot.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn onehot(&self, x: &Matrix<T>) -> Matrix<T> {
[INFO] [stdout]    |               ^^^^^                    ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn onehot(&self, x: &Matrix<T>) -> Matrix<'_, T> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ahash` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8c15eb1748ca16db1ed7b43e73d46532a699951bf4189fd1c13d326ec59bbea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c15eb1748ca16db1ed7b43e73d46532a699951bf4189fd1c13d326ec59bbea2", kill_on_drop: false }`
[INFO] [stdout] 8c15eb1748ca16db1ed7b43e73d46532a699951bf4189fd1c13d326ec59bbea2
