[INFO] cloning repository https://github.com/meamuri/optimization_methods [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meamuri/optimization_methods" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeamuri%2Foptimization_methods", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeamuri%2Foptimization_methods'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ebf50dd461de29582dfa3339acee7bd3750e6c01 [INFO] checking meamuri/optimization_methods against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeamuri%2Foptimization_methods" "/workspace/builds/worker-11/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/meamuri/optimization_methods on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/meamuri/optimization_methods [INFO] finished tweaking git repo https://github.com/meamuri/optimization_methods [INFO] tweaked toml for git repo https://github.com/meamuri/optimization_methods written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/meamuri/optimization_methods already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 090dc905c27f551fa72cc210d1ce473b9b0e08a6800cff40606d8cc0f7c53371 [INFO] running `Command { std: "docker" "start" "-a" "090dc905c27f551fa72cc210d1ce473b9b0e08a6800cff40606d8cc0f7c53371", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "090dc905c27f551fa72cc210d1ce473b9b0e08a6800cff40606d8cc0f7c53371", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "090dc905c27f551fa72cc210d1ce473b9b0e08a6800cff40606d8cc0f7c53371", kill_on_drop: false }` [INFO] [stdout] 090dc905c27f551fa72cc210d1ce473b9b0e08a6800cff40606d8cc0f7c53371 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 59e6e5ae2a4e0ff924e5d6b51c830ebc4e370680874be0dd99045371e54e7379 [INFO] running `Command { std: "docker" "start" "-a" "59e6e5ae2a4e0ff924e5d6b51c830ebc4e370680874be0dd99045371e54e7379", kill_on_drop: false }` [INFO] [stderr] Checking optimization_methods v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/golden_section.rs:11:55 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn golden_section(_a: f64, _b: f64, eps: f64, f: &Fn(f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/newton.rs:1:25 [INFO] [stdout] | [INFO] [stdout] 1 | fn first_derivative(f: &Fn(f64)-> f64, x: f64, h: f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64)-> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/newton.rs:5:26 [INFO] [stdout] | [INFO] [stdout] 5 | fn second_derivative(f: &Fn(f64) -> f64, x: f64, h: f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/newton.rs:9:62 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn newton_method(a: f64, b: f64, _u0: f64, eps: f64, f: &Fn(f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/parabolic.rs:1:55 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn parabolic_method(a: f64, b: f64, eps: f64, f: &Fn(f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/parabolic.rs:63:49 [INFO] [stdout] | [INFO] [stdout] 63 | fn parabolas_min(u1: f64, u2: f64, u3: f64, f: &Fn(f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/segment_div.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | f: &Fn(f64) -> f64 [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/mod.rs:1:51 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn x_derivative(x: f64, y: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> f64{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/mod.rs:7:51 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn y_derivative(x: f64, y: f64, eps: f64, f: &Fn(f64,f64) -> f64) -> f64{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64,f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/splitting_of_step.rs:3:68 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn splitting_of_step(x: f64, y: f64, alpha: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> (f64, f64) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/fastest_descent.rs:4:54 [INFO] [stdout] | [INFO] [stdout] 4 | fn segment_divide_help(x: f64, y: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/fastest_descent.rs:19:56 [INFO] [stdout] | [INFO] [stdout] 19 | fn help_func(x: f64, y: f64, alpha: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/fastest_descent.rs:24:54 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn fastest_descent(x: f64, y: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> (f64, f64) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/golden_section.rs:11:55 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn golden_section(_a: f64, _b: f64, eps: f64, f: &Fn(f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/newton.rs:1:25 [INFO] [stdout] | [INFO] [stdout] 1 | fn first_derivative(f: &Fn(f64)-> f64, x: f64, h: f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64)-> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/newton.rs:5:26 [INFO] [stdout] | [INFO] [stdout] 5 | fn second_derivative(f: &Fn(f64) -> f64, x: f64, h: f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/newton.rs:9:62 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn newton_method(a: f64, b: f64, _u0: f64, eps: f64, f: &Fn(f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/parabolic.rs:1:55 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn parabolic_method(a: f64, b: f64, eps: f64, f: &Fn(f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/parabolic.rs:63:49 [INFO] [stdout] | [INFO] [stdout] 63 | fn parabolas_min(u1: f64, u2: f64, u3: f64, f: &Fn(f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/single_dim_methods/segment_div.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | f: &Fn(f64) -> f64 [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/mod.rs:1:51 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn x_derivative(x: f64, y: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> f64{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/mod.rs:7:51 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn y_derivative(x: f64, y: f64, eps: f64, f: &Fn(f64,f64) -> f64) -> f64{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64,f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/splitting_of_step.rs:3:68 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn splitting_of_step(x: f64, y: f64, alpha: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> (f64, f64) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/fastest_descent.rs:4:54 [INFO] [stdout] | [INFO] [stdout] 4 | fn segment_divide_help(x: f64, y: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/fastest_descent.rs:19:56 [INFO] [stdout] | [INFO] [stdout] 19 | fn help_func(x: f64, y: f64, alpha: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/methods/multi_dim_methods/fastest_descent.rs:24:54 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn fastest_descent(x: f64, y: f64, eps: f64, f: &Fn(f64, f64) -> f64) -> (f64, f64) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.43s [INFO] running `Command { std: "docker" "inspect" "59e6e5ae2a4e0ff924e5d6b51c830ebc4e370680874be0dd99045371e54e7379", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59e6e5ae2a4e0ff924e5d6b51c830ebc4e370680874be0dd99045371e54e7379", kill_on_drop: false }` [INFO] [stdout] 59e6e5ae2a4e0ff924e5d6b51c830ebc4e370680874be0dd99045371e54e7379