[INFO] fetching crate brainfuck-plusplus 1.0.1...
[INFO] linting brainfuck-plusplus-1.0.1 against nightly for clippy-nonminimal_bool-denied
[INFO] extracting crate brainfuck-plusplus 1.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate brainfuck-plusplus 1.0.1
[INFO] finished tweaking crates.io crate brainfuck-plusplus 1.0.1
[INFO] tweaked toml for crates.io crate brainfuck-plusplus 1.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate brainfuck-plusplus 1.0.1 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 crates.io crate brainfuck-plusplus 1.0.1 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: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded owo-colors v3.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 37dcae5cf0c2e5bc8bf2a1b98938afa12dec98d6042d8657baeb9543295b5821
[INFO] running `Command { std: "docker" "start" "-a" "37dcae5cf0c2e5bc8bf2a1b98938afa12dec98d6042d8657baeb9543295b5821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37dcae5cf0c2e5bc8bf2a1b98938afa12dec98d6042d8657baeb9543295b5821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37dcae5cf0c2e5bc8bf2a1b98938afa12dec98d6042d8657baeb9543295b5821", kill_on_drop: false }`
[INFO] [stdout] 37dcae5cf0c2e5bc8bf2a1b98938afa12dec98d6042d8657baeb9543295b5821
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 50d8e748f03b240175f30383d64300bd94b25e6b1d84f158a69ad4ae3038fc64
[INFO] running `Command { std: "docker" "start" "-a" "50d8e748f03b240175f30383d64300bd94b25e6b1d84f158a69ad4ae3038fc64", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking owo-colors v3.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking brainfuck-plusplus v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/brainfuck.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     return ix;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 46 -     return ix;
[INFO] [stdout] 46 +     ix
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/brainfuck.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     return ix;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 69 -     return ix;
[INFO] [stdout] 69 +     ix
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/brainfuck.rs:204:5
[INFO] [stdout]     |
[INFO] [stdout] 204 |     return cells;
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 204 -     return cells;
[INFO] [stdout] 204 +     cells
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/brainfuck.rs:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 | /                 if cells[*possition] == 0 {
[INFO] [stdout] 173 | |                     index = do_left_bracket(chars.clone(), index)
[INFO] [stdout] 174 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 171 ~             '['
[INFO] [stdout] 172 ~                 if cells[*possition] == 0 => {
[INFO] [stdout] 173 |                     index = do_left_bracket(chars.clone(), index)
[INFO] [stdout] 174 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/brainfuck.rs:179:17
[INFO] [stdout]     |
[INFO] [stdout] 179 | /                 if cells[*possition] != 0 {
[INFO] [stdout] 180 | |                     index = do_right_bracket(chars.clone(), index)
[INFO] [stdout] 181 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 178 ~             ']'
[INFO] [stdout] 179 ~                 if cells[*possition] != 0 => {
[INFO] [stdout] 180 |                     index = do_right_bracket(chars.clone(), index)
[INFO] [stdout] 181 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/brainfuck.rs:145:25
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*&mut ((*possition as usize).checked_sub(1)).unwrap_or_default()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: immediately dereferencing a reference
[INFO] [stdout]    --> src/brainfuck.rs:145:25
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `((*possition as usize).checked_sub(1)).unwrap_or_default()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#deref_addrof
[INFO] [stdout]     = note: `#[warn(clippy::deref_addrof)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual saturating arithmetic
[INFO] [stdout]    --> src/brainfuck.rs:145:31
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `saturating_sub`: `(*possition as usize).saturating_sub(1)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_saturating_arithmetic
[INFO] [stdout]     = note: `#[warn(clippy::manual_saturating_arithmetic)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/brainfuck.rs:145:32
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^ help: try: `(*possition)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> src/cli.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/brainfuck.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     return ix;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 46 -     return ix;
[INFO] [stdout] 46 +     ix
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/brainfuck.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     return ix;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]    = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 46 -     return ix;
[INFO] [stdout] 46 +     ix
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/brainfuck.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     return ix;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 69 -     return ix;
[INFO] [stdout] 69 +     ix
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/brainfuck.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     return ix;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 69 -     return ix;
[INFO] [stdout] 69 +     ix
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/brainfuck.rs:204:5
[INFO] [stdout]     |
[INFO] [stdout] 204 |     return cells;
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 204 -     return cells;
[INFO] [stdout] 204 +     cells
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/brainfuck.rs:204:5
[INFO] [stdout]     |
[INFO] [stdout] 204 |     return cells;
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 204 -     return cells;
[INFO] [stdout] 204 +     cells
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/brainfuck.rs:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 | /                 if cells[*possition] == 0 {
[INFO] [stdout] 173 | |                     index = do_left_bracket(chars.clone(), index)
[INFO] [stdout] 174 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 171 ~             '['
[INFO] [stdout] 172 ~                 if cells[*possition] == 0 => {
[INFO] [stdout] 173 |                     index = do_left_bracket(chars.clone(), index)
[INFO] [stdout] 174 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/brainfuck.rs:172:17
[INFO] [stdout]     |
[INFO] [stdout] 172 | /                 if cells[*possition] == 0 {
[INFO] [stdout] 173 | |                     index = do_left_bracket(chars.clone(), index)
[INFO] [stdout] 174 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 171 ~             '['
[INFO] [stdout] 172 ~                 if cells[*possition] == 0 => {
[INFO] [stdout] 173 |                     index = do_left_bracket(chars.clone(), index)
[INFO] [stdout] 174 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/brainfuck.rs:179:17
[INFO] [stdout]     |
[INFO] [stdout] 179 | /                 if cells[*possition] != 0 {
[INFO] [stdout] 180 | |                     index = do_right_bracket(chars.clone(), index)
[INFO] [stdout] 181 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 178 ~             ']'
[INFO] [stdout] 179 ~                 if cells[*possition] != 0 => {
[INFO] [stdout] 180 |                     index = do_right_bracket(chars.clone(), index)
[INFO] [stdout] 181 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/brainfuck.rs:179:17
[INFO] [stdout]     |
[INFO] [stdout] 179 | /                 if cells[*possition] != 0 {
[INFO] [stdout] 180 | |                     index = do_right_bracket(chars.clone(), index)
[INFO] [stdout] 181 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 178 ~             ']'
[INFO] [stdout] 179 ~                 if cells[*possition] != 0 => {
[INFO] [stdout] 180 |                     index = do_right_bracket(chars.clone(), index)
[INFO] [stdout] 181 ~                 }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/brainfuck.rs:145:25
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*&mut ((*possition as usize).checked_sub(1)).unwrap_or_default()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: immediately dereferencing a reference
[INFO] [stdout]    --> src/brainfuck.rs:145:25
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `((*possition as usize).checked_sub(1)).unwrap_or_default()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#deref_addrof
[INFO] [stdout]     = note: `#[warn(clippy::deref_addrof)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual saturating arithmetic
[INFO] [stdout]    --> src/brainfuck.rs:145:31
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `saturating_sub`: `(*possition as usize).saturating_sub(1)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_saturating_arithmetic
[INFO] [stdout]     = note: `#[warn(clippy::manual_saturating_arithmetic)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/brainfuck.rs:145:32
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^ help: try: `(*possition)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/brainfuck.rs:145:25
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*&mut ((*possition as usize).checked_sub(1)).unwrap_or_default()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: immediately dereferencing a reference
[INFO] [stdout]    --> src/brainfuck.rs:145:25
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `((*possition as usize).checked_sub(1)).unwrap_or_default()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#deref_addrof
[INFO] [stdout]     = note: `#[warn(clippy::deref_addrof)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual saturating arithmetic
[INFO] [stdout]    --> src/brainfuck.rs:145:31
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `saturating_sub`: `(*possition as usize).saturating_sub(1)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_saturating_arithmetic
[INFO] [stdout]     = note: `#[warn(clippy::manual_saturating_arithmetic)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/brainfuck.rs:145:32
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         *&mut ((*possition as usize).checked_sub(1)).unwrap_or_default() as usize;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^ help: try: `(*possition)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this can be `std::io::Error::other(_)`
[INFO] [stdout]   --> src/repl.rs:44:24
[INFO] [stdout]    |
[INFO] [stdout] 44 |         .ok_or_else(|| io::Error::new(io::ErrorKind::Other, "Cannot read stdin"))
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#io_other_error
[INFO] [stdout]    = note: `#[warn(clippy::io_other_error)]` on by default
[INFO] [stdout] help: use `std::io::Error::other`
[INFO] [stdout]    |
[INFO] [stdout] 44 -         .ok_or_else(|| io::Error::new(io::ErrorKind::Other, "Cannot read stdin"))
[INFO] [stdout] 44 +         .ok_or_else(|| io::Error::other("Cannot read stdin"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/cli.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     if !opt.file.is_none() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: try: `opt.file.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: unneeded `return` statement
[INFO] [stdout]   --> src/cli.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         return;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 66 -         brainfuck(contents, bf_config);
[INFO] [stdout] 67 -         return;
[INFO] [stdout] 66 +         brainfuck(contents, bf_config);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct update has no effect, all the fields in the struct have already been specified
[INFO] [stdout]   --> src/cli.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 |         ..default_bf_config()
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_update
[INFO] [stdout]    = note: `#[warn(clippy::needless_update)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.31s
[INFO] [stdout] warning: called `.as_ref().map(String::as_str)` on an `Option` value
[INFO] [stdout]   --> src/cli.rs:51:25
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let file_path = opt.file.as_ref().map(String::as_str).unwrap();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using as_deref: `opt.file.as_deref()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#option_as_ref_deref
[INFO] [stdout]    = note: `#[warn(clippy::option_as_ref_deref)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "50d8e748f03b240175f30383d64300bd94b25e6b1d84f158a69ad4ae3038fc64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50d8e748f03b240175f30383d64300bd94b25e6b1d84f158a69ad4ae3038fc64", kill_on_drop: false }`
[INFO] [stdout] 50d8e748f03b240175f30383d64300bd94b25e6b1d84f158a69ad4ae3038fc64