[INFO] fetching crate diffeq 0.1.0...
[INFO] testing diffeq-0.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate diffeq 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate diffeq 0.1.0
[INFO] finished tweaking crates.io crate diffeq 0.1.0
[INFO] tweaked toml for crates.io crate diffeq 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate diffeq 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 48 packages to highest compatible versions
[INFO] [stderr]       Adding derive_builder v0.9.0 (available: v0.20.2)
[INFO] [stderr]       Adding nalgebra v0.19.0 (available: v0.35.0)
[INFO] [stderr]       Adding num v0.2.1 (available: v0.4.3)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.21)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded approx v0.3.2
[INFO] [stderr]   Downloaded alga v0.9.3
[INFO] [stderr]   Downloaded derive_builder_core v0.9.0
[INFO] [stderr]   Downloaded matrixmultiply v0.2.4
[INFO] [stderr]   Downloaded derive_builder v0.9.0
[INFO] [stderr]   Downloaded rand_distr v0.2.2
[INFO] [stderr]   Downloaded nalgebra v0.19.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d
[INFO] running `Command { std: "docker" "start" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.191
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling num-integer v0.1.47
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling itertools-num v0.1.3
[INFO] [stderr]    Compiling num-iter v0.1.46
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling nalgebra v0.19.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling diffeq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stdout]    --> src/ode/problem.rs:227:72
[INFO] [stdout]     |
[INFO] [stdout] 227 |             if (signum(opts.initstep.0) - init.tdir).abs() < std::f64::EPSILON {
[INFO] [stdout]     |                                                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stdout]    --> src/ode/problem.rs:241:64
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let mut last_step = (t + dt - tend).abs() <= std::f64::EPSILON;
[INFO] [stdout]     |                                                                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stdout]    --> src/ode/problem.rs:531:75
[INFO] [stdout]     |
[INFO] [stdout] 531 |                     && (tout[tout.len() - 1] - (t + h)).abs() > std::f64::EPSILON
[INFO] [stdout]     |                                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ode/coeff.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn ks(&self) -> Ks<Y> {
[INFO] [stdout]    |               ^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn ks(&self) -> Ks<'_, Y> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ode/coeff.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn ys(&self) -> Ks<Y> {
[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] 24 |     pub fn ys(&self) -> Ks<'_, Y> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ode/types.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn ode_iter(&self) -> OdeTypeIterator<Self> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn ode_iter(&self) -> OdeTypeIterator<'_, Self> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 35.95s
[INFO] running `Command { std: "docker" "inspect" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stdout]    --> src/ode/problem.rs:227:72
[INFO] [stdout]     |
[INFO] [stdout] 227 |             if (signum(opts.initstep.0) - init.tdir).abs() < std::f64::EPSILON {
[INFO] [stdout]     |                                                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stdout]    --> src/ode/problem.rs:241:64
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let mut last_step = (t + dt - tend).abs() <= std::f64::EPSILON;
[INFO] [stdout]     |                                                                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stdout]    --> src/ode/problem.rs:531:75
[INFO] [stdout]     |
[INFO] [stdout] 531 |                     && (tout[tout.len() - 1] - (t + h)).abs() > std::f64::EPSILON
[INFO] [stdout]     |                                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ode/coeff.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn ks(&self) -> Ks<Y> {
[INFO] [stdout]    |               ^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn ks(&self) -> Ks<'_, Y> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ode/coeff.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn ys(&self) -> Ks<Y> {
[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] 24 |     pub fn ys(&self) -> Ks<'_, Y> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ode/types.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn ode_iter(&self) -> OdeTypeIterator<Self> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn ode_iter(&self) -> OdeTypeIterator<'_, Self> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling diffeq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stdout]    --> src/ode/problem.rs:227:72
[INFO] [stdout]     |
[INFO] [stdout] 227 |             if (signum(opts.initstep.0) - init.tdir).abs() < std::f64::EPSILON {
[INFO] [stdout]     |                                                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stdout]    --> src/ode/problem.rs:241:64
[INFO] [stdout]     |
[INFO] [stdout] 241 |         let mut last_step = (t + dt - tend).abs() <= std::f64::EPSILON;
[INFO] [stdout]     |                                                                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stdout]    --> src/ode/problem.rs:531:75
[INFO] [stdout]     |
[INFO] [stdout] 531 |                     && (tout[tout.len() - 1] - (t + h)).abs() > std::f64::EPSILON
[INFO] [stdout]     |                                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ode/coeff.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn ks(&self) -> Ks<Y> {
[INFO] [stdout]    |               ^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn ks(&self) -> Ks<'_, Y> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ode/coeff.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn ys(&self) -> Ks<Y> {
[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] 24 |     pub fn ys(&self) -> Ks<'_, Y> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ode/types.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn ode_iter(&self) -> OdeTypeIterator<Self> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn ode_iter(&self) -> OdeTypeIterator<'_, Self> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stderr]    --> src/ode/problem.rs:227:72
[INFO] [stderr]     |
[INFO] [stderr] 227 |             if (signum(opts.initstep.0) - init.tdir).abs() < std::f64::EPSILON {
[INFO] [stderr]     |                                                                        ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stderr]    --> src/ode/problem.rs:241:64
[INFO] [stderr]     |
[INFO] [stderr] 241 |         let mut last_step = (t + dt - tend).abs() <= std::f64::EPSILON;
[INFO] [stderr]     |                                                                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::f64::EPSILON`: replaced by the `EPSILON` associated constant on `f64`
[INFO] [stderr]    --> src/ode/problem.rs:531:75
[INFO] [stderr]     |
[INFO] [stderr] 531 |                     && (tout[tout.len() - 1] - (t + h)).abs() > std::f64::EPSILON
[INFO] [stderr]     |                                                                           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/ode/coeff.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn ks(&self) -> Ks<Y> {
[INFO] [stderr]    |               ^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |               |
[INFO] [stderr]    |               the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn ks(&self) -> Ks<'_, Y> {
[INFO] [stderr]    |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/ode/coeff.rs:24:15
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn ys(&self) -> Ks<Y> {
[INFO] [stderr]    |               ^^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |               |
[INFO] [stderr]    |               the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn ys(&self) -> Ks<'_, Y> {
[INFO] [stderr]    |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/ode/types.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn ode_iter(&self) -> OdeTypeIterator<Self> {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn ode_iter(&self) -> OdeTypeIterator<'_, Self> {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: `diffeq` (lib) generated 6 warnings (run `cargo fix --lib -p diffeq` to apply 3 suggestions)
[INFO] [stderr] warning: `diffeq` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/diffeq-018e296c3c368cb9)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test ode::problem::tests::fdjacobian_test ... ok
[INFO] [stdout] test ode::problem::tests::diff_test ... ok
[INFO] [stdout] test ode::runge_kutta::tests::is_fsal ... ok
[INFO] [stdout] test ode::runge_kutta::tests::is_consistent ... ok
[INFO] [stdout] test ode::types::tests::ode_tuple ... ok
[INFO] [stdout] test ode::problem::tests::ode45_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests diffeq
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d", kill_on_drop: false }`
[INFO] [stdout] 1cb8fb9611f54531c7bbd92f84754c6ed4d8c8e26bd4ba35c9b2e8303ede8c4d
