[INFO] fetching crate rootfind 0.7.0...
[INFO] testing rootfind-0.7.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate rootfind 0.7.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rootfind 0.7.0
[INFO] finished tweaking crates.io crate rootfind 0.7.0
[INFO] tweaked toml for crates.io crate rootfind 0.7.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rootfind 0.7.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b7612949c4724a84e4adea21e966f3881dca918a05ad8f12a7d8bcb25e519f52
[INFO] running `Command { std: "docker" "start" "-a" "b7612949c4724a84e4adea21e966f3881dca918a05ad8f12a7d8bcb25e519f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7612949c4724a84e4adea21e966f3881dca918a05ad8f12a7d8bcb25e519f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7612949c4724a84e4adea21e966f3881dca918a05ad8f12a7d8bcb25e519f52", kill_on_drop: false }`
[INFO] [stdout] b7612949c4724a84e4adea21e966f3881dca918a05ad8f12a7d8bcb25e519f52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7f6b06268c5ecbe2d6930f0312ad99dbc280db589e725ebd4c757d9542fe4a3b
[INFO] running `Command { std: "docker" "start" "-a" "7f6b06268c5ecbe2d6930f0312ad99dbc280db589e725ebd4c757d9542fe4a3b", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling rootfind v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bracket.rs:115:19
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(f: &F, bounds: Bounds, window_size: f64) -> BracketGenerator<F> {
[INFO] [stdout]     |                   ^^ the lifetime is elided here           ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(f: &F, bounds: Bounds, window_size: f64) -> BracketGenerator<'_, F> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "7f6b06268c5ecbe2d6930f0312ad99dbc280db589e725ebd4c757d9542fe4a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f6b06268c5ecbe2d6930f0312ad99dbc280db589e725ebd4c757d9542fe4a3b", kill_on_drop: false }`
[INFO] [stdout] 7f6b06268c5ecbe2d6930f0312ad99dbc280db589e725ebd4c757d9542fe4a3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b5ec81c285de5caf8b6b90438dd016060c171ffd83791efa243db5f9f9fd4906
[INFO] running `Command { std: "docker" "start" "-a" "b5ec81c285de5caf8b6b90438dd016060c171ffd83791efa243db5f9f9fd4906", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bracket.rs:115:19
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(f: &F, bounds: Bounds, window_size: f64) -> BracketGenerator<F> {
[INFO] [stdout]     |                   ^^ the lifetime is elided here           ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(f: &F, bounds: Bounds, window_size: f64) -> BracketGenerator<'_, F> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rootfind v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/solver.rs:326:16
[INFO] [stdout]     |
[INFO] [stdout] 326 |         f: Box<Fn(f64) -> f64>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 326 |         f: Box<dyn Fn(f64) -> f64>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/solver.rs:327:17
[INFO] [stdout]     |
[INFO] [stdout] 327 |         df: Box<Fn(f64) -> f64>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 327 |         df: Box<dyn Fn(f64) -> f64>,
[INFO] [stdout]     |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/solver.rs:328:18
[INFO] [stdout]     |
[INFO] [stdout] 328 |         d2f: Box<Fn(f64) -> f64>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 328 |         d2f: Box<dyn Fn(f64) -> f64>,
[INFO] [stdout]     |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/integration.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             format!("got={}, wanted={}", computed_root, expected_root)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 34 -             format!("got={}, wanted={}", computed_root, expected_root)
[INFO] [stdout] 34 +             "got={}, wanted={}", computed_root, expected_root
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bracket.rs:115:19
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(f: &F, bounds: Bounds, window_size: f64) -> BracketGenerator<F> {
[INFO] [stdout]     |                   ^^ the lifetime is elided here           ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn new(f: &F, bounds: Bounds, window_size: f64) -> BracketGenerator<'_, F> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/solver.rs:947:21
[INFO] [stdout]     |
[INFO] [stdout] 947 |                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 947 -                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stdout] 947 +                     "{} root wanted={}, got={}", t.name, t.roots[i], root
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/solver.rs:967:21
[INFO] [stdout]     |
[INFO] [stdout] 967 |                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 967 -                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stdout] 967 +                     "{} root wanted={}, got={}", t.name, t.roots[i], root
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/solver.rs:987:21
[INFO] [stdout]     |
[INFO] [stdout] 987 |                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 987 -                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stdout] 987 +                     "{} root wanted={}, got={}", t.name, t.roots[i], root
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/solver.rs:1003:21
[INFO] [stdout]      |
[INFO] [stdout] 1003 |                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]      = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1003 -                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stdout] 1003 +                     "{} root wanted={}, got={}", t.name, t.roots[i], root
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "b5ec81c285de5caf8b6b90438dd016060c171ffd83791efa243db5f9f9fd4906", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5ec81c285de5caf8b6b90438dd016060c171ffd83791efa243db5f9f9fd4906", kill_on_drop: false }`
[INFO] [stdout] b5ec81c285de5caf8b6b90438dd016060c171ffd83791efa243db5f9f9fd4906
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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", kill_on_drop: false }`
[INFO] [stdout] 9221d7e78b291791fc0064f2f607c38a419770c5dbc0f50b1f2e4cf4ab7544e2
[INFO] running `Command { std: "docker" "start" "-a" "9221d7e78b291791fc0064f2f607c38a419770c5dbc0f50b1f2e4cf4ab7544e2", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/bracket.rs:115:19
[INFO] [stderr]     |
[INFO] [stderr] 115 |     pub fn new(f: &F, bounds: Bounds, window_size: f64) -> BracketGenerator<F> {
[INFO] [stderr]     |                   ^^ the lifetime is elided here           ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 115 |     pub fn new(f: &F, bounds: Bounds, window_size: f64) -> BracketGenerator<'_, F> {
[INFO] [stderr]     |                                                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: `rootfind` (lib) generated 1 warning (run `cargo fix --lib -p rootfind` to apply 1 suggestion)
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/integration.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |             format!("got={}, wanted={}", computed_root, expected_root)
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 34 -             format!("got={}, wanted={}", computed_root, expected_root)
[INFO] [stderr] 34 +             "got={}, wanted={}", computed_root, expected_root
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `rootfind` (test "integration") generated 1 warning (run `cargo fix --test "integration" -p rootfind` to apply 1 suggestion)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:326:16
[INFO] [stderr]     |
[INFO] [stderr] 326 |         f: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 326 |         f: Box<dyn Fn(f64) -> f64>,
[INFO] [stderr]     |                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:327:17
[INFO] [stderr]     |
[INFO] [stderr] 327 |         df: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 327 |         df: Box<dyn Fn(f64) -> f64>,
[INFO] [stderr]     |                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/solver.rs:328:18
[INFO] [stderr]     |
[INFO] [stderr] 328 |         d2f: Box<Fn(f64) -> f64>,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 328 |         d2f: Box<dyn Fn(f64) -> f64>,
[INFO] [stderr]     |                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/solver.rs:947:21
[INFO] [stderr]     |
[INFO] [stderr] 947 |                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 947 -                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stderr] 947 +                     "{} root wanted={}, got={}", t.name, t.roots[i], root
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/solver.rs:967:21
[INFO] [stderr]     |
[INFO] [stderr] 967 |                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 967 -                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stderr] 967 +                     "{} root wanted={}, got={}", t.name, t.roots[i], root
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/solver.rs:987:21
[INFO] [stderr]     |
[INFO] [stderr] 987 |                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 987 -                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stderr] 987 +                     "{} root wanted={}, got={}", t.name, t.roots[i], root
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/solver.rs:1003:21
[INFO] [stderr]      |
[INFO] [stderr] 1003 |                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]      = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]      |
[INFO] [stderr] 1003 -                     format!("{} root wanted={}, got={}", t.name, t.roots[i], root)
[INFO] [stderr] 1003 +                     "{} root wanted={}, got={}", t.name, t.roots[i], root
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: `rootfind` (lib test) generated 8 warnings (1 duplicate) (run `cargo fix --lib -p rootfind --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rootfind-c70f0c0708a00dc9)
[INFO] [stdout] 
[INFO] [stdout] running 42 tests
[INFO] [stdout] test bracket::tests::test_bounds_middle_degenerate ... ok
[INFO] [stdout] test bracket::tests::test_bounds_middle_symmetric ... ok
[INFO] [stdout] test bracket::tests::test_bounds_middle_offset ... ok
[INFO] [stdout] test bracket::tests::test_bounds_contains ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_signed_zeros ... ok
[INFO] [stdout] test bracket::tests::test_bracket_generator_hits ... ok
[INFO] [stdout] test bracket::tests::test_bracket_generator_empty ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_valid ... ok
[INFO] [stdout] test bracket::tests::test_bounds_size ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_even_degree ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_underflow ... ok
[INFO] [stdout] test convergence::tests::test_dual_convergence ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_convergence ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_hit ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_miss ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_convergence ... ok
[INFO] [stdout] test solver::tests::test_bisection_centered_root ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_overflow ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_flipped_extents - should panic ... ok
[INFO] [stdout] test solver::tests::test_newton_zero_derivative ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_zero_window - should panic ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_nan_lhs - should panic ... ok
[INFO] [stdout] test bracket::tests::test_is_sign_change_nan_rhs - should panic ... ok
[INFO] [stdout] test solver::tests::test_pathology_flatlining ... ok
[INFO] [stdout] test bracket::tests::test_first_bracket_negative_window - should panic ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_nan - should panic ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_nan - should panic ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_negative - should panic ... ok
[INFO] [stdout] test bracket::tests::test_bounds_new_infinite - should panic ... ok
[INFO] [stdout] test convergence::tests::test_delta_x_epsabs_zero - should panic ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_epsabs_nan - should panic ... ok
[INFO] [stdout] test convergence::tests::test_fn_residual_epsabs_negative - should panic ... ok
[INFO] [stdout] test solver::tests::test_pathology_microstep ... ok
[INFO] [stdout] test solver::tests::test_table_halley ... ok
[INFO] [stdout] test solver::tests::test_table_newton ... ok
[INFO] [stdout] test solver::tests::test_newton_nonfinite_start - should panic ... ok
[INFO] [stdout] test solver::tests::test_table_illinois ... ok
[INFO] [stdout] test solver::tests::test_halley_nonfinite_start - should panic ... ok
[INFO] [stdout] test solver::tests::test_bisection_no_straddle - should panic ... ok
[INFO] [stdout] test bracket::tests::test_bracket_generator_window_negative - should panic ... ok
[INFO] [stdout] test solver::tests::test_table_bisection ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 42 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-5738767c0aaf5050)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_end_to_end ... 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 rootfind
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/solver.rs - solver (line 12) ... ok
[INFO] [stdout] test src/wrap.rs - wrap (line 22) ... ok
[INFO] [stdout] test src/convergence.rs - convergence (line 16) ... ok
[INFO] [stdout] test src/wrap.rs - wrap (line 36) ... ok
[INFO] [stdout] test src/solver.rs - solver (line 35) ... ok
[INFO] [stdout] test src/bracket.rs - bracket (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9221d7e78b291791fc0064f2f607c38a419770c5dbc0f50b1f2e4cf4ab7544e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9221d7e78b291791fc0064f2f607c38a419770c5dbc0f50b1f2e4cf4ab7544e2", kill_on_drop: false }`
[INFO] [stdout] 9221d7e78b291791fc0064f2f607c38a419770c5dbc0f50b1f2e4cf4ab7544e2
