[INFO] cloning repository https://github.com/bool-rus/math-ast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bool-rus/math-ast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbool-rus%2Fmath-ast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbool-rus%2Fmath-ast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b47521bb9d45247ef7a56b7646c0b5baa6a29f0b
[INFO] linting bool-rus/math-ast against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbool-rus%2Fmath-ast" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bool-rus/math-ast
[INFO] finished tweaking git repo https://github.com/bool-rus/math-ast
[INFO] tweaked toml for git repo https://github.com/bool-rus/math-ast written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bool-rus/math-ast on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bool-rus/math-ast 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" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-integer v0.1.39
[INFO] [stderr]   Downloaded num-complex v0.2.1
[INFO] [stderr]   Downloaded num v0.2.0
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded num-traits v0.2.6
[INFO] [stderr]   Downloaded num-rational v0.2.1
[INFO] [stderr]   Downloaded num-bigint v0.2.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25b1ecb36958e10f7056e86c6a3cfbc3f0d0ee5c7f581f5fda986af06b9baaf0
[INFO] running `Command { std: "docker" "start" "-a" "25b1ecb36958e10f7056e86c6a3cfbc3f0d0ee5c7f581f5fda986af06b9baaf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25b1ecb36958e10f7056e86c6a3cfbc3f0d0ee5c7f581f5fda986af06b9baaf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b1ecb36958e10f7056e86c6a3cfbc3f0d0ee5c7f581f5fda986af06b9baaf0", kill_on_drop: false }`
[INFO] [stdout] 25b1ecb36958e10f7056e86c6a3cfbc3f0d0ee5c7f581f5fda986af06b9baaf0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0210f3eedf4875416c8b6065a1bdfff5c5f19a37be36b6ef0f54a2e400b88a6b
[INFO] running `Command { std: "docker" "start" "-a" "0210f3eedf4875416c8b6065a1bdfff5c5f19a37be36b6ef0f54a2e400b88a6b", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking math-ast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/parser/lexem.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/parser/lexem.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/parser/lexem.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Num`
[INFO] [stdout]  --> src/parser/lexem.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::num::Num;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Integer`
[INFO] [stdout]  --> src/parser/lexem.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::num::Integer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/lexem.rs:121:28
[INFO] [stdout]     |
[INFO] [stdout] 121 |             '0' | '.' | '1'...'9' | 'a'...'z' | 'A'...'Z' => State::Letter,
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[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(ellipsis_inclusive_range_patterns)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/lexem.rs:121:40
[INFO] [stdout]     |
[INFO] [stdout] 121 |             '0' | '.' | '1'...'9' | 'a'...'z' | 'A'...'Z' => State::Letter,
[INFO] [stdout]     |                                        ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/lexem.rs:121:52
[INFO] [stdout]     |
[INFO] [stdout] 121 |             '0' | '.' | '1'...'9' | 'a'...'z' | 'A'...'Z' => State::Letter,
[INFO] [stdout]     |                                                    ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Float`
[INFO] [stdout]  --> src/parser/tree.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser::faces::Function`
[INFO] [stdout]   --> src/parser/tree.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     use parser::faces::Function;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bound is defined in more than one place
[INFO] [stdout]   --> src/parser/tree.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn minus<T: 'static + Float>(a: Ast<T>, b: Ast<T>) -> Ast<T> where T: Float {
[INFO] [stdout]    |              ^                                                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#multiple_bound_locations
[INFO] [stdout]    = note: `#[warn(clippy::multiple_bound_locations)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bound is defined in more than one place
[INFO] [stdout]   --> src/parser/tree.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn multiple<T: 'static + Float>(a: Ast<T>, b: Ast<T>) -> Ast<T> where T: Float {
[INFO] [stdout]    |                 ^                                                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#multiple_bound_locations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bound is defined in more than one place
[INFO] [stdout]   --> src/parser/tree.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn divide<T: 'static + Float>(a: Ast<T>, b: Ast<T>) -> Ast<T> where T: Float {
[INFO] [stdout]    |               ^                                                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#multiple_bound_locations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bound is defined in more than one place
[INFO] [stdout]   --> src/parser/builder.rs:67:16
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn ast<T: 'static + Float + Sized>(self) -> Result<Ast<T>, BuilderErr> where T: Float {
[INFO] [stdout]    |                ^                                                                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#multiple_bound_locations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser::builder::BuildResult`
[INFO] [stdout]    --> src/parser/builder.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |     use parser::builder::BuildResult;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]    --> src/parser/builder.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |     use std::fmt::Debug;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]    --> src/parser/builder.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |     use std::fmt::Display;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/parser/faces.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Float`
[INFO] [stdout]  --> src/parser/faces.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/tree.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Operation(Box<Function<T>>, Vec<Ast<T>>),
[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] 14 |     Operation(Box<dyn Function<T>>, Vec<Ast<T>>),
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser/faces.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | type RawFn<T> = &'static Fn(Vec<T>) -> Option<T>;
[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] 5 | type RawFn<T> = &'static dyn Fn(Vec<T>) -> Option<T>;
[INFO] [stdout]   |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/parser/lexem.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/parser/lexem.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/parser/lexem.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/lexem.rs:97:42
[INFO] [stdout]    |
[INFO] [stdout] 97 | impl<T:'static + Float + Sized> Into<Box<Function<T>>> for Operand {
[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] 97 | impl<T:'static + Float + Sized> Into<Box<dyn Function<T>>> for Operand {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/lexem.rs:98:26
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn into(self) -> Box<Function<T>> {
[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] 98 |     fn into(self) -> Box<dyn Function<T>> {
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Num`
[INFO] [stdout]  --> src/parser/lexem.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::num::Num;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Integer`
[INFO] [stdout]  --> src/parser/lexem.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::num::Integer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/lexem.rs:121:28
[INFO] [stdout]     |
[INFO] [stdout] 121 |             '0' | '.' | '1'...'9' | 'a'...'z' | 'A'...'Z' => State::Letter,
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[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(ellipsis_inclusive_range_patterns)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/lexem.rs:121:40
[INFO] [stdout]     |
[INFO] [stdout] 121 |             '0' | '.' | '1'...'9' | 'a'...'z' | 'A'...'Z' => State::Letter,
[INFO] [stdout]     |                                        ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/lexem.rs:121:52
[INFO] [stdout]     |
[INFO] [stdout] 121 |             '0' | '.' | '1'...'9' | 'a'...'z' | 'A'...'Z' => State::Letter,
[INFO] [stdout]     |                                                    ^^^ help: use `..=` for an inclusive range
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Float`
[INFO] [stdout]  --> src/parser/tree.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/lexem.rs:51:64
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn make_fn<T:'static + Float + Sized>(ch: char) -> Box<Function<T>> {
[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] 51 |     pub fn make_fn<T:'static + Float + Sized>(ch: char) -> Box<dyn Function<T>> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/builder.rs:54:71
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn functions<T: 'static + Float + Sized>() -> HashMap<String, Box<Function<T>>> {
[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] 54 |     fn functions<T: 'static + Float + Sized>() -> HashMap<String, Box<dyn Function<T>>> {
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bound is defined in more than one place
[INFO] [stdout]   --> src/parser/builder.rs:67:16
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn ast<T: 'static + Float + Sized>(self) -> Result<Ast<T>, BuilderErr> where T: Float {
[INFO] [stdout]    |                ^                                                                     ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#multiple_bound_locations
[INFO] [stdout]    = note: `#[warn(clippy::multiple_bound_locations)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/faces.rs:38:60
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new<S: ToString>(name:S, func: RawFn<T>) -> Box<Function<T>> {
[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] 38 |     pub fn new<S: ToString>(name:S, func: RawFn<T>) -> Box<dyn Function<T>> {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/parser/faces.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Float`
[INFO] [stdout]  --> src/parser/faces.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/tree.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Operation(Box<Function<T>>, Vec<Ast<T>>),
[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] 14 |     Operation(Box<dyn Function<T>>, Vec<Ast<T>>),
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/parser/faces.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | type RawFn<T> = &'static Fn(Vec<T>) -> Option<T>;
[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] 5 | type RawFn<T> = &'static dyn Fn(Vec<T>) -> Option<T>;
[INFO] [stdout]   |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/lexem.rs:97:42
[INFO] [stdout]    |
[INFO] [stdout] 97 | impl<T:'static + Float + Sized> Into<Box<Function<T>>> for Operand {
[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] 97 | impl<T:'static + Float + Sized> Into<Box<dyn Function<T>>> for Operand {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/lexem.rs:98:26
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn into(self) -> Box<Function<T>> {
[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] 98 |     fn into(self) -> Box<dyn Function<T>> {
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/builder.rs:54:71
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn functions<T: 'static + Float + Sized>() -> HashMap<String, Box<Function<T>>> {
[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] 54 |     fn functions<T: 'static + Float + Sized>() -> HashMap<String, Box<dyn Function<T>>> {
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/faces.rs:38:60
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn new<S: ToString>(name:S, func: RawFn<T>) -> Box<Function<T>> {
[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] 38 |     pub fn new<S: ToString>(name:S, func: RawFn<T>) -> Box<dyn Function<T>> {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Add`
[INFO] [stdout]  --> src/parser/lexem.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sub`
[INFO] [stdout]  --> src/parser/lexem.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mul`
[INFO] [stdout]  --> src/parser/lexem.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stdout]   |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Div`
[INFO] [stdout]  --> src/parser/lexem.rs:4:31
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stdout]   |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Div`
[INFO] [stdout]  --> src/parser/lexem.rs:4:31
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stdout]   |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Add`
[INFO] [stdout]  --> src/parser/lexem.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sub`
[INFO] [stdout]  --> src/parser/lexem.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mul`
[INFO] [stdout]  --> src/parser/lexem.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{Add, Sub, Mul, Div};
[INFO] [stdout]   |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Lexem` is never used
[INFO] [stdout]   --> src/parser/lexem.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Lexem {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `special` is never used
[INFO] [stdout]   --> src/parser/lexem.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Lexem {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 22 |     fn special(ch: char) -> Option<Lexem> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parser/builder.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct BuilderErr(
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 12 |     String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 13 |     Option<Builder>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `BuilderErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operand` is never used
[INFO] [stdout]   --> src/parser/lexem.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum Operand {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstFunction` is never constructed
[INFO] [stdout]    --> src/parser/builder.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct AstFunction<T: Sized + Debug> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/parser/builder.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 170 | impl<T> AstFunction<T> where T: 'static + Float + Sized + Debug {
[INFO] [stdout]     | --------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 171 |     fn new(desc: Builder, value: Builder) -> Result<Self, BuilderErr> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `more`, `from`, and `ch` are never used
[INFO] [stdout]   --> src/parser/lexem.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Operand {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn more(&self, rhs: &Operand) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn from(ch: char) -> Option<Operand> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn ch(self) -> char {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `name` and `args_count` are never used
[INFO] [stdout]  --> src/parser/faces.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Function<T: Sized> : Debug {
[INFO] [stdout]   |           -------- methods in this trait
[INFO] [stdout] 8 |     fn name(&self) -> &str;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 9 |     fn args_count(&self) -> usize;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `add`, `sub`, `mul`, `div`, and `pow` are never used
[INFO] [stdout]   --> src/parser/lexem.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl Operand {
[INFO] [stdout]    | ------------ associated functions in this implementation
[INFO] [stdout] 80 |     fn add<T:Float>(args: Vec<T>) -> Option<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn sub<T:Float>(args: Vec<T>) -> Option<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 86 |     fn mul<T:Float>(args: Vec<T>) -> Option<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     fn div<T:Float>(args: Vec<T>) -> Option<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     fn pow<T:Float>(args: Vec<T>) -> Option<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]    --> src/parser/lexem.rs:112:6
[INFO] [stdout]     |
[INFO] [stdout] 112 | enum State {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]    --> src/parser/lexem.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 | struct Parser {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `args_count` is never read
[INFO] [stdout]   --> src/parser/faces.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct FnFunction<T: 'static + Sized> {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 14 |     name: String,
[INFO] [stdout] 15 |     args_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `process`, `end_letter`, and `end` are never used
[INFO] [stdout]    --> src/parser/lexem.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 135 | impl Parser {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 136 |     pub fn new() -> Parser {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     pub fn process(mut self, ch: char) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn end_letter(&mut self, letter: String) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     pub fn end(mut self) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]    --> src/parser/lexem.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 | pub fn parse(input: &str) -> Vec<Lexem> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Ast` is never used
[INFO] [stdout]   --> src/parser/tree.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Ast<T: Sized> {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `calculate` is never used
[INFO] [stdout]   --> src/parser/tree.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<T> Ast<T> where T: Sized + Clone {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 18 |     pub fn calculate(&self, params: &HashMap<String, T>) -> Option<T> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BuilderErr` is never constructed
[INFO] [stdout]   --> src/parser/builder.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct BuilderErr(
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BuildResult` is never used
[INFO] [stdout]   --> src/parser/builder.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | type BuildResult = Result<Builder, BuilderErr>;
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BB` is never used
[INFO] [stdout]   --> src/parser/builder.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | type BB = Box<Builder>;
[INFO] [stdout]    |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Builder` is never used
[INFO] [stdout]   --> src/parser/builder.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub enum Builder {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/parser/builder.rs:43:8
[INFO] [stdout]     |
[INFO] [stdout]  42 | impl Builder {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout]  43 |     fn sin<T: Float>(args: Vec<T>) -> Option<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  46 |     fn cos<T: Float>(args: Vec<T>) -> Option<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  50 |     pub fn new() -> Builder {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  54 |     fn functions<T: 'static + Float + Sized>() -> HashMap<String, Box<Function<T>>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  61 |     fn simple_err<X, S: ToString>(s: S) -> Result<X, BuilderErr> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  64 |     fn make_err<X, S: ToString>(self, s: S) -> Result<X, BuilderErr> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  67 |     pub fn ast<T: 'static + Float + Sized>(self) -> Result<Ast<T>, BuilderErr> where T: Float {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn ast_inner<T: 'static + Float + Sized>(self) -> Result<Ast<T>, BuilderErr> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  97 |     fn want_process(&self, lex: &Lexem) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn process(self, lex: Lexem) -> BuildResult {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 147 |     fn fun_delegate_inner(name: String, mut v: Vec<Builder>, lex: Lexem) -> BuildResult {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstFunction` is never constructed
[INFO] [stdout]    --> src/parser/builder.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct AstFunction<T: Sized + Debug> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/parser/builder.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 170 | impl<T> AstFunction<T> where T: 'static + Float + Sized + Debug {
[INFO] [stdout]     | --------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 171 |     fn new(desc: Builder, value: Builder) -> Result<Self, BuilderErr> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `RawFn` is never used
[INFO] [stdout]  --> src/parser/faces.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | type RawFn<T> = &'static Fn(Vec<T>) -> Option<T>;
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Function` is never used
[INFO] [stdout]  --> src/parser/faces.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Function<T: Sized> : Debug {
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FnFunction` is never constructed
[INFO] [stdout]   --> src/parser/faces.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct FnFunction<T: 'static + Sized> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/parser/faces.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T: Sized> FnFunction<T> {
[INFO] [stdout]    | ---------------------------- associated function in this implementation
[INFO] [stdout] 38 |     pub fn new<S: ToString>(name:S, func: RawFn<T>) -> Box<Function<T>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: direct implementation of `ToString`
[INFO] [stdout]   --> src/parser/lexem.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | / impl ToString for Operand {
[INFO] [stdout] 40 | |     fn to_string(&self) -> String {
[INFO] [stdout] 41 | |         match self {
[INFO] [stdout] 42 | |             Operand::Low(ch) => ch,
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: prefer implementing `Display` instead
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_trait_impl
[INFO] [stdout]    = note: `#[warn(clippy::to_string_trait_impl)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: direct implementation of `ToString`
[INFO] [stdout]   --> src/parser/lexem.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | / impl ToString for Operand {
[INFO] [stdout] 40 | |     fn to_string(&self) -> String {
[INFO] [stdout] 41 | |         match self {
[INFO] [stdout] 42 | |             Operand::Low(ch) => ch,
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: prefer implementing `Display` instead
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#to_string_trait_impl
[INFO] [stdout]    = note: `#[warn(clippy::to_string_trait_impl)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/parser/lexem.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | /         match (self, rhs) {
[INFO] [stdout] 56 | |             (Operand::High(..), Operand::Low(..)) => true,
[INFO] [stdout] 57 | |             (Operand::Highest(..), Operand::High(..)) => true,
[INFO] [stdout] 58 | |             (Operand::Highest(..), Operand::Low(..)) => true,
[INFO] [stdout] 59 | |             _ => false,
[INFO] [stdout] 60 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 55 -         match (self, rhs) {
[INFO] [stdout] 56 -             (Operand::High(..), Operand::Low(..)) => true,
[INFO] [stdout] 57 -             (Operand::Highest(..), Operand::High(..)) => true,
[INFO] [stdout] 58 -             (Operand::Highest(..), Operand::Low(..)) => true,
[INFO] [stdout] 59 -             _ => false,
[INFO] [stdout] 60 -         }
[INFO] [stdout] 55 +         matches!((self, rhs), (Operand::High(..), Operand::Low(..)) | (Operand::Highest(..), Operand::High(..)) | (Operand::Highest(..), Operand::Low(..)))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/parser/lexem.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | /         match (self, rhs) {
[INFO] [stdout] 56 | |             (Operand::High(..), Operand::Low(..)) => true,
[INFO] [stdout] 57 | |             (Operand::Highest(..), Operand::High(..)) => true,
[INFO] [stdout] 58 | |             (Operand::Highest(..), Operand::Low(..)) => true,
[INFO] [stdout] 59 | |             _ => false,
[INFO] [stdout] 60 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 55 -         match (self, rhs) {
[INFO] [stdout] 56 -             (Operand::High(..), Operand::Low(..)) => true,
[INFO] [stdout] 57 -             (Operand::Highest(..), Operand::High(..)) => true,
[INFO] [stdout] 58 -             (Operand::Highest(..), Operand::Low(..)) => true,
[INFO] [stdout] 59 -             _ => false,
[INFO] [stdout] 60 -         }
[INFO] [stdout] 55 +         matches!((self, rhs), (Operand::High(..), Operand::Low(..)) | (Operand::Highest(..), Operand::High(..)) | (Operand::Highest(..), Operand::Low(..)))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/parser/lexem.rs:97:1
[INFO] [stdout]     |
[INFO] [stdout]  97 | impl<T:'static + Float + Sized> Into<Box<Function<T>>> for Operand {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: `impl From<Local> for Foreign` is allowed by the orphan rules, for more information see
[INFO] [stdout]             https://doc.rust-lang.org/reference/items/implementations.html#trait-implementation-coherence
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout]     = note: `#[warn(clippy::from_over_into)]` on by default
[INFO] [stdout] help: replace the `Into` implementation with `From<parser::lexem::Operand>`
[INFO] [stdout]     |
[INFO] [stdout]  97 ~ impl<T:'static + Float + Sized> From<Operand> for Box<Function<T>> {
[INFO] [stdout]  98 ~     fn from(val: Operand) -> Self {
[INFO] [stdout]  99 ~         match val.ch() {
[INFO] [stdout] 100 ~             ch @ '+' => FnFunction::new(ch, &Operand::add),
[INFO] [stdout] 101 ~             ch @'-' => FnFunction::new(ch, &Operand::sub),
[INFO] [stdout] 102 ~             ch @ '*' => FnFunction::new(ch, &Operand::mul),
[INFO] [stdout] 103 ~             ch @ '/' => FnFunction::new(ch, &Operand::div),
[INFO] [stdout] 104 ~             ch @ '^' => FnFunction::new(ch, &Operand::pow),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]    --> src/parser/lexem.rs:97:1
[INFO] [stdout]     |
[INFO] [stdout]  97 | impl<T:'static + Float + Sized> Into<Box<Function<T>>> for Operand {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: `impl From<Local> for Foreign` is allowed by the orphan rules, for more information see
[INFO] [stdout]             https://doc.rust-lang.org/reference/items/implementations.html#trait-implementation-coherence
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout]     = note: `#[warn(clippy::from_over_into)]` on by default
[INFO] [stdout] help: replace the `Into` implementation with `From<parser::lexem::Operand>`
[INFO] [stdout]     |
[INFO] [stdout]  97 ~ impl<T:'static + Float + Sized> From<Operand> for Box<Function<T>> {
[INFO] [stdout]  98 ~     fn from(val: Operand) -> Self {
[INFO] [stdout]  99 ~         match val.ch() {
[INFO] [stdout] 100 ~             ch @ '+' => FnFunction::new(ch, &Operand::add),
[INFO] [stdout] 101 ~             ch @'-' => FnFunction::new(ch, &Operand::sub),
[INFO] [stdout] 102 ~             ch @ '*' => FnFunction::new(ch, &Operand::mul),
[INFO] [stdout] 103 ~             ch @ '/' => FnFunction::new(ch, &Operand::div),
[INFO] [stdout] 104 ~             ch @ '^' => FnFunction::new(ch, &Operand::pow),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/parser/lexem.rs:122:19
[INFO] [stdout]     |
[INFO] [stdout] 122 |             ch if !Lexem::special(ch).is_none()  => State::Special,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `Lexem::special(ch).is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/parser/lexem.rs:122:19
[INFO] [stdout]     |
[INFO] [stdout] 122 |             ch if !Lexem::special(ch).is_none()  => State::Special,
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `Lexem::special(ch).is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/parser/tree.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |                     args.push(ast.calculate(&params)?)
[INFO] [stdout]    |                                             ^^^^^^^ help: change this to: `params`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/parser/tree.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |                     args.push(ast.calculate(&params)?)
[INFO] [stdout]    |                                             ^^^^^^^ help: change this to: `params`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]   --> src/parser/builder.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Into<BuildResult> for Builder {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<parser::builder::Builder>`
[INFO] [stdout]    |
[INFO] [stdout] 19 ~ impl From<Builder> for BuildResult {
[INFO] [stdout] 20 ~     fn from(val: Builder) -> Self {
[INFO] [stdout] 21 ~         Ok(val)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]   --> src/parser/builder.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<O> Into<Result<O, BuilderErr>> for BuilderErr {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: `impl From<Local> for Foreign` is allowed by the orphan rules, for more information see
[INFO] [stdout]            https://doc.rust-lang.org/reference/items/implementations.html#trait-implementation-coherence
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<parser::builder::BuilderErr>`
[INFO] [stdout]    |
[INFO] [stdout] 25 ~ impl<O> From<BuilderErr> for Result<O, BuilderErr> {
[INFO] [stdout] 26 ~     fn from(val: BuilderErr) -> Self {
[INFO] [stdout] 27 ~         Err(val)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `parser::tree::Ast<f64>`
[INFO] [stdout]   --> src/parser/tree.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 | /             multiple(
[INFO] [stdout] 71 | |                 minus(
[INFO] [stdout] 72 | |                     constant(12f64),
[INFO] [stdout] 73 | |                     divide(
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | |                 variable("y".to_string()),
[INFO] [stdout] 79 | |             ).into(),
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]    = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] help: consider removing `.into()`
[INFO] [stdout]    |
[INFO] [stdout] 70 ~             multiple(
[INFO] [stdout] 71 +                 minus(
[INFO] [stdout] 72 +                     constant(12f64),
[INFO] [stdout] 73 +                     divide(
[INFO] [stdout] 74 +                         constant(10f64),
[INFO] [stdout] 75 +                         variable("x".to_string()),
[INFO] [stdout] 76 +                     ),
[INFO] [stdout] 77 +                 ),
[INFO] [stdout] 78 +                 variable("y".to_string()),
[INFO] [stdout] 79 ~             ),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]   --> src/parser/builder.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Into<BuildResult> for Builder {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<parser::builder::Builder>`
[INFO] [stdout]    |
[INFO] [stdout] 19 ~ impl From<Builder> for BuildResult {
[INFO] [stdout] 20 ~     fn from(val: Builder) -> Self {
[INFO] [stdout] 21 ~         Ok(val)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
[INFO] [stdout]   --> src/parser/builder.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<O> Into<Result<O, BuilderErr>> for BuilderErr {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: `impl From<Local> for Foreign` is allowed by the orphan rules, for more information see
[INFO] [stdout]            https://doc.rust-lang.org/reference/items/implementations.html#trait-implementation-coherence
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into
[INFO] [stdout] help: replace the `Into` implementation with `From<parser::builder::BuilderErr>`
[INFO] [stdout]    |
[INFO] [stdout] 25 ~ impl<O> From<BuilderErr> for Result<O, BuilderErr> {
[INFO] [stdout] 26 ~     fn from(val: BuilderErr) -> Self {
[INFO] [stdout] 27 ~         Err(val)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Iterator::fold` on a type that implements `Try`
[INFO] [stdout]    --> src/parser/builder.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |         parse(s).into_iter().fold(Ok(Builder::new()), |b, lex| b?.process(lex))
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `try_fold` instead: `try_fold(Builder::new(), |b, lex| ...)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_try_fold
[INFO] [stdout]     = note: `#[warn(clippy::manual_try_fold)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods called `new` usually return `Self`
[INFO] [stdout]   --> src/parser/faces.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     pub fn new<S: ToString>(name:S, func: RawFn<T>) -> Box<Function<T>> {
[INFO] [stdout] 39 | |         Box::new(FnFunction {
[INFO] [stdout] 40 | |             name: name.to_string(),
[INFO] [stdout] 41 | |             args_count: 2,
[INFO] [stdout] 42 | |             fun: func
[INFO] [stdout] 43 | |         })
[INFO] [stdout] 44 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self
[INFO] [stdout]    = note: `#[warn(clippy::new_ret_no_self)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Iterator::fold` on a type that implements `Try`
[INFO] [stdout]    --> src/parser/builder.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |         parse(s).into_iter().fold(Ok(Builder::new()), |b, lex| b?.process(lex))
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `try_fold` instead: `try_fold(Builder::new(), |b, lex| ...)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_try_fold
[INFO] [stdout]     = note: `#[warn(clippy::manual_try_fold)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods called `new` usually return `Self`
[INFO] [stdout]   --> src/parser/faces.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     pub fn new<S: ToString>(name:S, func: RawFn<T>) -> Box<Function<T>> {
[INFO] [stdout] 39 | |         Box::new(FnFunction {
[INFO] [stdout] 40 | |             name: name.to_string(),
[INFO] [stdout] 41 | |             args_count: 2,
[INFO] [stdout] 42 | |             fun: func
[INFO] [stdout] 43 | |         })
[INFO] [stdout] 44 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self
[INFO] [stdout]    = note: `#[warn(clippy::new_ret_no_self)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.94s
[INFO] running `Command { std: "docker" "inspect" "0210f3eedf4875416c8b6065a1bdfff5c5f19a37be36b6ef0f54a2e400b88a6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0210f3eedf4875416c8b6065a1bdfff5c5f19a37be36b6ef0f54a2e400b88a6b", kill_on_drop: false }`
[INFO] [stdout] 0210f3eedf4875416c8b6065a1bdfff5c5f19a37be36b6ef0f54a2e400b88a6b