[INFO] cloning repository https://github.com/uraneko/simple_csv_reader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uraneko/simple_csv_reader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furaneko%2Fsimple_csv_reader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furaneko%2Fsimple_csv_reader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f8f32e9d24b68243c0393773b6f444d0cc154ea
[INFO] checking uraneko/simple_csv_reader against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Furaneko%2Fsimple_csv_reader" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/uraneko/simple_csv_reader
[INFO] finished tweaking git repo https://github.com/uraneko/simple_csv_reader
[INFO] tweaked toml for git repo https://github.com/uraneko/simple_csv_reader written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/uraneko/simple_csv_reader on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/uraneko/simple_csv_reader 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3361427496a685c769f47c2a2a11a175afb10df71da1cb4e456836ff55de0519
[INFO] running `Command { std: "docker" "start" "-a" "3361427496a685c769f47c2a2a11a175afb10df71da1cb4e456836ff55de0519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3361427496a685c769f47c2a2a11a175afb10df71da1cb4e456836ff55de0519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3361427496a685c769f47c2a2a11a175afb10df71da1cb4e456836ff55de0519", kill_on_drop: false }`
[INFO] [stdout] 3361427496a685c769f47c2a2a11a175afb10df71da1cb4e456836ff55de0519
[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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25af4f847b208f76291568f39c6f576d0ed8003a2deae8454c6f1df916aedd51
[INFO] running `Command { std: "docker" "start" "-a" "25af4f847b208f76291568f39c6f576d0ed8003a2deae8454c6f1df916aedd51", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `Alignment` and `Settings`
[INFO] [stdout]  --> src/gui/app.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use iced::{alignment, Alignment, Application, Command, Element, Length, Settings, Theme};
[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: `std::mem`
[INFO] [stdout]  --> src/gui/app.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/matcell.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |         overlay::{self, Overlay},
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Alignment`, `Background`, and `BorderRadius`
[INFO] [stdout]   --> src/matcell.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Vector, Element, Alignment, alignment, Padding,
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout] 19 |         Background, Color, BorderRadius, Command};
[INFO] [stdout]    |         ^^^^^^^^^^         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Appearance` and `self`
[INFO] [stdout]   --> src/matcell.rs:20:36
[INFO] [stdout]    |
[INFO] [stdout] 20 |     use iced::widget::text_input::{self, StyleSheet, Appearance};
[INFO] [stdout]    |                                    ^^^^              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::csv::reader::*`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::csv::reader::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Overlay`
[INFO] [stdout]  --> src/matcell.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 |         overlay::{self, Overlay},
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/csv/reader.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         Err(e) => panic!("not such file"),
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/csv/reader.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Ok(n) => (),
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/csv/reader.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         Err(e) => panic!("file contains non utf8 characters"),
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut lines = buffer.lines();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let mut line_s = String::from(line);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut f = open_file(path);
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Alignment` and `Settings`
[INFO] [stdout]  --> src/gui/app.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use iced::{alignment, Alignment, Application, Command, Element, Length, Settings, Theme};
[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: `std::mem`
[INFO] [stdout]  --> src/gui/app.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/matcell.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |         overlay::{self, Overlay},
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut sgl: Vec<String> = line
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut vals: Vec<(usize, String)> = Vec::with_capacity(dbl.len() + sgl.len());
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vals`
[INFO] [stdout]   --> src/csv/reader.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut vals: Vec<(usize, String)> = Vec::with_capacity(dbl.len() + sgl.len());
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Alignment`, `Background`, and `BorderRadius`
[INFO] [stdout]   --> src/matcell.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Vector, Element, Alignment, alignment, Padding,
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout] 19 |         Background, Color, BorderRadius, Command};
[INFO] [stdout]    |         ^^^^^^^^^^         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Appearance` and `self`
[INFO] [stdout]   --> src/matcell.rs:20:36
[INFO] [stdout]    |
[INFO] [stdout] 20 |     use iced::widget::text_input::{self, StyleSheet, Appearance};
[INFO] [stdout]    |                                    ^^^^              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::csv::reader::*`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::csv::reader::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line_height`
[INFO] [stdout]    --> src/matcell.rs:400:9
[INFO] [stdout]     |
[INFO] [stdout] 400 |         line_height: text::LineHeight,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text_size`
[INFO] [stdout]    --> src/matcell.rs:406:13
[INFO] [stdout]     |
[INFO] [stdout] 406 |         let text_size = size.unwrap_or_else(|| renderer.default_size());
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_text_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `StringUtils` is never used
[INFO] [stdout]    --> src/csv/reader.rs:130:7
[INFO] [stdout]     |
[INFO] [stdout] 130 | trait StringUtils {
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_loading` is never read
[INFO] [stdout]   --> src/gui/app.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct App {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     is_loading: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `App` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `file_btn` is never used
[INFO] [stdout]    --> src/gui/app.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn file_btn() -> Button<'static, Message> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `style` is never used
[INFO] [stdout]    --> src/matcell.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout]  56 | /     impl<'a, Message, Renderer> MatCell<'a, Message, Renderer> 
[INFO] [stdout]  57 | |     where 
[INFO] [stdout]  58 | |         Message: Clone, 
[INFO] [stdout]  59 | |         Renderer: text::Renderer,
[INFO] [stdout]  60 | |         Renderer::Theme: StyleSheet,
[INFO] [stdout]     | |____________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |           fn style(
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stdout]   --> src/csv/reader.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | /     sgl.iter()
[INFO] [stdout] 68 | |         .enumerate()
[INFO] [stdout] 69 | |         .map(|(i, s)| {
[INFO] [stdout] 70 | |             for val in &dbl {
[INFO] [stdout] ...  |
[INFO] [stdout] 79 | |         })
[INFO] [stdout] 80 | |         .collect::<()>();
[INFO] [stdout]    | |________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let _ = sgl.iter()
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/gui/app.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn view(&self) -> Element<Message> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn view(&self) -> Element<'_, Message> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/gui/app.rs:125:14
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn table(&self) -> Column<Message> {
[INFO] [stdout]     |              ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |              |
[INFO] [stdout]     |              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn table(&self) -> Column<'_, Message> {
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stdout]    --> src/gui/app.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 | /         (0..rows)
[INFO] [stdout] 129 | |             .map(|n| {
[INFO] [stdout] 130 | |                 let mut row = Vec::new();
[INFO] [stdout] 131 | |                 (0..self.cols)
[INFO] [stdout] ...   |
[INFO] [stdout] 142 | |             })
[INFO] [stdout] 143 | |             .collect::<()>();
[INFO] [stdout]     | |____________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let _ = (0..rows)
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stdout]    --> src/gui/app.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 | /                 (0..self.cols)
[INFO] [stdout] 132 | |                     .map(|m| {
[INFO] [stdout] 133 | |                         let index = self.cols * n + m;
[INFO] [stdout] 134 | |                         row.push(
[INFO] [stdout] ...   |
[INFO] [stdout] 139 | |                     })
[INFO] [stdout] 140 | |                     .collect::<()>();
[INFO] [stdout]     | |____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 let _ = (0..self.cols)
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Overlay`
[INFO] [stdout]  --> src/matcell.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 |         overlay::{self, Overlay},
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/csv/reader.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         Err(e) => panic!("not such file"),
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/csv/reader.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Ok(n) => (),
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/csv/reader.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         Err(e) => panic!("file contains non utf8 characters"),
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut lines = buffer.lines();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let mut line_s = String::from(line);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut f = open_file(path);
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut sgl: Vec<String> = line
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/csv/reader.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut vals: Vec<(usize, String)> = Vec::with_capacity(dbl.len() + sgl.len());
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vals`
[INFO] [stdout]   --> src/csv/reader.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut vals: Vec<(usize, String)> = Vec::with_capacity(dbl.len() + sgl.len());
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line_height`
[INFO] [stdout]    --> src/matcell.rs:400:9
[INFO] [stdout]     |
[INFO] [stdout] 400 |         line_height: text::LineHeight,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text_size`
[INFO] [stdout]    --> src/matcell.rs:406:13
[INFO] [stdout]     |
[INFO] [stdout] 406 |         let text_size = size.unwrap_or_else(|| renderer.default_size());
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_text_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `StringUtils` is never used
[INFO] [stdout]    --> src/csv/reader.rs:130:7
[INFO] [stdout]     |
[INFO] [stdout] 130 | trait StringUtils {
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_loading` is never read
[INFO] [stdout]   --> src/gui/app.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct App {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     is_loading: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `App` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `file_btn` is never used
[INFO] [stdout]    --> src/gui/app.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn file_btn() -> Button<'static, Message> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `style` is never used
[INFO] [stdout]    --> src/matcell.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout]  56 | /     impl<'a, Message, Renderer> MatCell<'a, Message, Renderer> 
[INFO] [stdout]  57 | |     where 
[INFO] [stdout]  58 | |         Message: Clone, 
[INFO] [stdout]  59 | |         Renderer: text::Renderer,
[INFO] [stdout]  60 | |         Renderer::Theme: StyleSheet,
[INFO] [stdout]     | |____________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |           fn style(
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stdout]   --> src/csv/reader.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | /     sgl.iter()
[INFO] [stdout] 68 | |         .enumerate()
[INFO] [stdout] 69 | |         .map(|(i, s)| {
[INFO] [stdout] 70 | |             for val in &dbl {
[INFO] [stdout] ...  |
[INFO] [stdout] 79 | |         })
[INFO] [stdout] 80 | |         .collect::<()>();
[INFO] [stdout]    | |________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let _ = sgl.iter()
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/gui/app.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn view(&self) -> Element<Message> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn view(&self) -> Element<'_, Message> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/gui/app.rs:125:14
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn table(&self) -> Column<Message> {
[INFO] [stdout]     |              ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |              |
[INFO] [stdout]     |              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn table(&self) -> Column<'_, Message> {
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stdout]    --> src/gui/app.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 | /         (0..rows)
[INFO] [stdout] 129 | |             .map(|n| {
[INFO] [stdout] 130 | |                 let mut row = Vec::new();
[INFO] [stdout] 131 | |                 (0..self.cols)
[INFO] [stdout] ...   |
[INFO] [stdout] 142 | |             })
[INFO] [stdout] 143 | |             .collect::<()>();
[INFO] [stdout]     | |____________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let _ = (0..rows)
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stdout]    --> src/gui/app.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 | /                 (0..self.cols)
[INFO] [stdout] 132 | |                     .map(|m| {
[INFO] [stdout] 133 | |                         let index = self.cols * n + m;
[INFO] [stdout] 134 | |                         row.push(
[INFO] [stdout] ...   |
[INFO] [stdout] 139 | |                     })
[INFO] [stdout] 140 | |                     .collect::<()>();
[INFO] [stdout]     | |____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 let _ = (0..self.cols)
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 18s
[INFO] running `Command { std: "docker" "inspect" "25af4f847b208f76291568f39c6f576d0ed8003a2deae8454c6f1df916aedd51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25af4f847b208f76291568f39c6f576d0ed8003a2deae8454c6f1df916aedd51", kill_on_drop: false }`
[INFO] [stdout] 25af4f847b208f76291568f39c6f576d0ed8003a2deae8454c6f1df916aedd51
