[INFO] cloning repository https://github.com/DWCarrot/RPiTextShowSSD1306
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DWCarrot/RPiTextShowSSD1306" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDWCarrot%2FRPiTextShowSSD1306", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDWCarrot%2FRPiTextShowSSD1306'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb6374f96cda21c63aba7fa1bb9a408536841e7b
[INFO] checking DWCarrot/RPiTextShowSSD1306 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDWCarrot%2FRPiTextShowSSD1306" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/DWCarrot/RPiTextShowSSD1306
[INFO] finished tweaking git repo https://github.com/DWCarrot/RPiTextShowSSD1306
[INFO] tweaked toml for git repo https://github.com/DWCarrot/RPiTextShowSSD1306 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DWCarrot/RPiTextShowSSD1306 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DWCarrot/RPiTextShowSSD1306 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "e4a7f72fad7bd7998d4dd62a05ccc54d1390621491f4c77937fc45854fcde5ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4a7f72fad7bd7998d4dd62a05ccc54d1390621491f4c77937fc45854fcde5ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a7f72fad7bd7998d4dd62a05ccc54d1390621491f4c77937fc45854fcde5ea", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 125fcd1c4e2adcf3df428105eff5353ce69ed7dd4b7500c967ad22e25baf8dea
[INFO] running `Command { std: "docker" "start" "-a" "125fcd1c4e2adcf3df428105eff5353ce69ed7dd4b7500c967ad22e25baf8dea", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `embedded_graphics::prelude`
[INFO] [stdout]  --> src/display.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use embedded_graphics::prelude::*;
[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 variable: `i`
[INFO] [stdout]   --> src/contents.rs:18:49
[INFO] [stdout]    |
[INFO] [stdout] 18 |             data: (0 .. ((w + 7) / 8) * h).map(|i| 0u8).collect(),
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/operation.rs:128:33
[INFO] [stdout]     |
[INFO] [stdout] 128 | ...                   i += 1;
[INFO] [stdout]     |                       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/operation.rs:132:33
[INFO] [stdout]     |
[INFO] [stdout] 132 | ...                   i += 1;
[INFO] [stdout]     |                       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/operation.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 |                         i += 1;
[INFO] [stdout]     |                         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page`
[INFO] [stdout]    --> src/operation.rs:242:28
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Self::SetPage{ page, data, width, height } => {
[INFO] [stdout]     |                            ^^^^ help: try ignoring the field: `page: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/operation.rs:242:34
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Self::SetPage{ page, data, width, height } => {
[INFO] [stdout]     |                                  ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/operation.rs:242:40
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Self::SetPage{ page, data, width, height } => {
[INFO] [stdout]     |                                        ^^^^^ help: try ignoring the field: `width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/operation.rs:242:47
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Self::SetPage{ page, data, width, height } => {
[INFO] [stdout]     |                                               ^^^^^^ help: try ignoring the field: `height: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page`
[INFO] [stdout]    --> src/operation.rs:246:29
[INFO] [stdout]     |
[INFO] [stdout] 246 |                 if let Some(page) = content.remove(page) {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_page`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page`
[INFO] [stdout]    --> src/operation.rs:252:30
[INFO] [stdout]     |
[INFO] [stdout] 252 |             Self::QueryPage{ page } => {
[INFO] [stdout]     |                              ^^^^ help: try ignoring the field: `page: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/operation.rs:330:36
[INFO] [stdout]     |
[INFO] [stdout] 330 |             Self::InvalidBase64(i, e) => write!(f, "InvalidBase64({})", i),
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/display.rs:37:27
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Page::BImage{ data, w, h } => {
[INFO] [stdout]    |                           ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/display.rs:37:33
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Page::BImage{ data, w, h } => {
[INFO] [stdout]    |                                 ^ help: try ignoring the field: `w: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> src/display.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Page::BImage{ data, w, h } => {
[INFO] [stdout]    |                                    ^ help: try ignoring the field: `h: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Empty` and `BImage` are never constructed
[INFO] [stdout]  --> src/contents.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Page {
[INFO] [stdout]   |          ---- variants in this enum
[INFO] [stdout] 3 |     Empty,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 4 |     Text { lines: Vec<String> },
[INFO] [stdout] 5 |     BImage { data: Box<[u8]>, w: u32, h: u32 },
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Page` has derived impls for the traits `Clone` and `Debug`, but these are 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: associated function `new_image` is never used
[INFO] [stdout]   --> src/contents.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Page {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn new_image(w: u32, h: u32) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_with_capacity` and `set` are never used
[INFO] [stdout]    --> src/contents.rs:75:12
[INFO] [stdout]     |
[INFO] [stdout]  66 | impl Content {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  75 |     pub fn new_with_capacity(line_limit: usize, capacity: usize) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn set(&mut self, i: usize, page: Page) -> bool {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `QueryPage` is never constructed
[INFO] [stdout]   --> src/operation.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum Operation {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 52 |     QueryPage {
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UnexpectedEnd` is never constructed
[INFO] [stdout]    --> src/operation.rs:317:5
[INFO] [stdout]     |
[INFO] [stdout] 315 | pub enum ParseError {
[INFO] [stdout]     |          ---------- variant in this enum
[INFO] [stdout] 316 |     InvalidLine,
[INFO] [stdout] 317 |     UnexpectedEnd(usize),
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `writeable`, `read_to_writer`, and `reset` are never used
[INFO] [stdout]    --> src/server.rs:59:12
[INFO] [stdout]     |
[INFO] [stdout]  45 | impl Buf {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  59 |     pub fn writeable(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub async fn read_to_writer<'a, W: AWrite + Unpin>(&mut self, tgt: &'a mut W) -> aio::Result<usize> {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn reset(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]   --> src/manager.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait Canvas {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn clear(&mut self) -> aio::Result<()>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/operation.rs:191:34
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn modify(self, content: &mut Content) -> Result<QueryData, OperationError> {
[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] 191 |     pub fn modify(self, content: &mut Content) -> Result<QueryData<'_>, OperationError> {
[INFO] [stdout]     |                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `embedded_graphics::prelude`
[INFO] [stdout]  --> src/display.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use embedded_graphics::prelude::*;
[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 variable: `i`
[INFO] [stdout]   --> src/contents.rs:18:49
[INFO] [stdout]    |
[INFO] [stdout] 18 |             data: (0 .. ((w + 7) / 8) * h).map(|i| 0u8).collect(),
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/operation.rs:128:33
[INFO] [stdout]     |
[INFO] [stdout] 128 | ...                   i += 1;
[INFO] [stdout]     |                       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/operation.rs:132:33
[INFO] [stdout]     |
[INFO] [stdout] 132 | ...                   i += 1;
[INFO] [stdout]     |                       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]    --> src/operation.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 |                         i += 1;
[INFO] [stdout]     |                         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page`
[INFO] [stdout]    --> src/operation.rs:242:28
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Self::SetPage{ page, data, width, height } => {
[INFO] [stdout]     |                            ^^^^ help: try ignoring the field: `page: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/operation.rs:242:34
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Self::SetPage{ page, data, width, height } => {
[INFO] [stdout]     |                                  ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/operation.rs:242:40
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Self::SetPage{ page, data, width, height } => {
[INFO] [stdout]     |                                        ^^^^^ help: try ignoring the field: `width: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/operation.rs:242:47
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Self::SetPage{ page, data, width, height } => {
[INFO] [stdout]     |                                               ^^^^^^ help: try ignoring the field: `height: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page`
[INFO] [stdout]    --> src/operation.rs:246:29
[INFO] [stdout]     |
[INFO] [stdout] 246 |                 if let Some(page) = content.remove(page) {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_page`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page`
[INFO] [stdout]    --> src/operation.rs:252:30
[INFO] [stdout]     |
[INFO] [stdout] 252 |             Self::QueryPage{ page } => {
[INFO] [stdout]     |                              ^^^^ help: try ignoring the field: `page: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/operation.rs:330:36
[INFO] [stdout]     |
[INFO] [stdout] 330 |             Self::InvalidBase64(i, e) => write!(f, "InvalidBase64({})", i),
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/display.rs:37:27
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Page::BImage{ data, w, h } => {
[INFO] [stdout]    |                           ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/display.rs:37:33
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Page::BImage{ data, w, h } => {
[INFO] [stdout]    |                                 ^ help: try ignoring the field: `w: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> src/display.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Page::BImage{ data, w, h } => {
[INFO] [stdout]    |                                    ^ help: try ignoring the field: `h: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Empty` and `BImage` are never constructed
[INFO] [stdout]  --> src/contents.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Page {
[INFO] [stdout]   |          ---- variants in this enum
[INFO] [stdout] 3 |     Empty,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 4 |     Text { lines: Vec<String> },
[INFO] [stdout] 5 |     BImage { data: Box<[u8]>, w: u32, h: u32 },
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Page` has derived impls for the traits `Clone` and `Debug`, but these are 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: associated function `new_image` is never used
[INFO] [stdout]   --> src/contents.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Page {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn new_image(w: u32, h: u32) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_with_capacity` and `set` are never used
[INFO] [stdout]    --> src/contents.rs:75:12
[INFO] [stdout]     |
[INFO] [stdout]  66 | impl Content {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  75 |     pub fn new_with_capacity(line_limit: usize, capacity: usize) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn set(&mut self, i: usize, page: Page) -> bool {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `QueryPage` is never constructed
[INFO] [stdout]   --> src/operation.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum Operation {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 52 |     QueryPage {
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UnexpectedEnd` is never constructed
[INFO] [stdout]    --> src/operation.rs:317:5
[INFO] [stdout]     |
[INFO] [stdout] 315 | pub enum ParseError {
[INFO] [stdout]     |          ---------- variant in this enum
[INFO] [stdout] 316 |     InvalidLine,
[INFO] [stdout] 317 |     UnexpectedEnd(usize),
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `writeable`, `read_to_writer`, and `reset` are never used
[INFO] [stdout]    --> src/server.rs:59:12
[INFO] [stdout]     |
[INFO] [stdout]  45 | impl Buf {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  59 |     pub fn writeable(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub async fn read_to_writer<'a, W: AWrite + Unpin>(&mut self, tgt: &'a mut W) -> aio::Result<usize> {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn reset(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]   --> src/manager.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait Canvas {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn clear(&mut self) -> aio::Result<()>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/operation.rs:191:34
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn modify(self, content: &mut Content) -> Result<QueryData, OperationError> {
[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] 191 |     pub fn modify(self, content: &mut Content) -> Result<QueryData<'_>, OperationError> {
[INFO] [stdout]     |                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.76s
[INFO] running `Command { std: "docker" "inspect" "125fcd1c4e2adcf3df428105eff5353ce69ed7dd4b7500c967ad22e25baf8dea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "125fcd1c4e2adcf3df428105eff5353ce69ed7dd4b7500c967ad22e25baf8dea", kill_on_drop: false }`
[INFO] [stdout] 125fcd1c4e2adcf3df428105eff5353ce69ed7dd4b7500c967ad22e25baf8dea
