[INFO] cloning repository https://github.com/Curt-White/virtual-printer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Curt-White/virtual-printer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurt-White%2Fvirtual-printer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurt-White%2Fvirtual-printer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a8cffc2e688e3c1fbed4686bc496af544fd08e2e [INFO] checking Curt-White/virtual-printer against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCurt-White%2Fvirtual-printer" "/workspace/builds/worker-108/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-108/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Curt-White/virtual-printer on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Curt-White/virtual-printer [INFO] finished tweaking git repo https://github.com/Curt-White/virtual-printer [INFO] tweaked toml for git repo https://github.com/Curt-White/virtual-printer written to /workspace/builds/worker-108/source/Cargo.toml [INFO] crate git repo https://github.com/Curt-White/virtual-printer already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] aa0af99d5bc92dc497b6688bc1a22b810b3367236d10f2a2d0209b386e388fce [INFO] running `Command { std: "docker" "start" "-a" "aa0af99d5bc92dc497b6688bc1a22b810b3367236d10f2a2d0209b386e388fce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "aa0af99d5bc92dc497b6688bc1a22b810b3367236d10f2a2d0209b386e388fce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa0af99d5bc92dc497b6688bc1a22b810b3367236d10f2a2d0209b386e388fce", kill_on_drop: false }` [INFO] [stdout] aa0af99d5bc92dc497b6688bc1a22b810b3367236d10f2a2d0209b386e388fce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1ff206ccdce440e08b873d65d17d75322fa7d97108561346dc4aad60bfceedd5 [INFO] running `Command { std: "docker" "start" "-a" "1ff206ccdce440e08b873d65d17d75322fa7d97108561346dc4aad60bfceedd5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Checking unicode-xid v0.2.0 [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Checking quote v1.0.2 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling Inflector v0.11.4 [INFO] [stderr] Checking parse_macro v0.1.0 (/opt/rustwide/workdir/parse_macro) [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> parse_macro/src/lib.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | _ => panic!( [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> parse_macro/src/lib.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | _ => panic!( [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> parse_macro/src/lib.rs:64:13 [INFO] [stdout] | [INFO] [stdout] 64 | _ => panic!( [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking printer v0.1.0 (/opt/rustwide/workdir/printer) [INFO] [stdout] warning: unused import: `from_utf8` [INFO] [stdout] --> printer/src/content.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::str::{from_utf8, Utf8Error}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `from_utf8` [INFO] [stdout] --> printer/src/content.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::str::{from_utf8, Utf8Error}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> printer/src/error.rs:28:40 [INFO] [stdout] | [INFO] [stdout] 28 | message: String::from(error.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> printer/src/error.rs:28:40 [INFO] [stdout] | [INFO] [stdout] 28 | message: String::from(error.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let res = function(printer, bytes)?; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | let res = function(printer, bytes)?; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `func_id` is never read [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | let mut func_id: u8 = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `batch` is never read [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:54:13 [INFO] [stdout] | [INFO] [stdout] 54 | let mut batch = false; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `printer` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:51:50 [INFO] [stdout] | [INFO] [stdout] 51 | fn de_multiplex_command(header: BitImageHeaders, printer: &mut Printer, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_printer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `bytes` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:52:33 [INFO] [stdout] | [INFO] [stdout] 52 | ... bytes: &mut Vec) -> Result { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 94 | let a = parse_store_raster_image_args(bytes)?; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `printer` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:93:23 [INFO] [stdout] | [INFO] [stdout] 93 | fn store_raster_image(printer: &mut Printer, bytes: &mut Vec) -> Result<(), PrinterError> { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_printer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> printer/src/esc_pos/print.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | for i in 0..args.n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `byte` [INFO] [stdout] --> printer/src/esc_pos/tree.rs:55:34 [INFO] [stdout] | [INFO] [stdout] 55 | 0x28 => Query::SubQuery(|byte: u8| Ok(Query::Resource(bit_image::command_2_arg))), [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `byte` [INFO] [stdout] --> printer/src/esc_pos/tree.rs:56:34 [INFO] [stdout] | [INFO] [stdout] 56 | 0x38 => Query::SubQuery(|byte: u8| Ok(Query::Resource(bit_image::command_4_arg))), [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> printer/src/formatter.rs:75:32 [INFO] [stdout] | [INFO] [stdout] 75 | fn format_image(&mut self, data: Image) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let res = function(printer, bytes)?; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | let res = function(printer, bytes)?; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `func_id` is never read [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | let mut func_id: u8 = 0; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `batch` is never read [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:54:13 [INFO] [stdout] | [INFO] [stdout] 54 | let mut batch = false; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `printer` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:51:50 [INFO] [stdout] | [INFO] [stdout] 51 | fn de_multiplex_command(header: BitImageHeaders, printer: &mut Printer, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_printer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `bytes` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:52:33 [INFO] [stdout] | [INFO] [stdout] 52 | ... bytes: &mut Vec) -> Result { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 94 | let a = parse_store_raster_image_args(bytes)?; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `printer` [INFO] [stdout] --> printer/src/esc_pos/bit_image.rs:93:23 [INFO] [stdout] | [INFO] [stdout] 93 | fn store_raster_image(printer: &mut Printer, bytes: &mut Vec) -> Result<(), PrinterError> { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_printer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> printer/src/esc_pos/print.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | for i in 0..args.n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `byte` [INFO] [stdout] --> printer/src/esc_pos/tree.rs:55:34 [INFO] [stdout] | [INFO] [stdout] 55 | 0x28 => Query::SubQuery(|byte: u8| Ok(Query::Resource(bit_image::command_2_arg))), [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `byte` [INFO] [stdout] --> printer/src/esc_pos/tree.rs:56:34 [INFO] [stdout] | [INFO] [stdout] 56 | 0x38 => Query::SubQuery(|byte: u8| Ok(Query::Resource(bit_image::command_4_arg))), [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> printer/src/formatter.rs:75:32 [INFO] [stdout] | [INFO] [stdout] 75 | fn format_image(&mut self, data: Image) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> printer/src/formatter.rs:55:31 [INFO] [stdout] | [INFO] [stdout] 55 | fn format_text(&mut self, mut data: Text) { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `TopLevelCommands` [INFO] [stdout] --> printer/src/esc_pos/tree.rs:16:6 [INFO] [stdout] | [INFO] [stdout] 16 | enum TopLevelCommands { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `DeprecatedCommand` [INFO] [stdout] --> printer/src/error.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | DeprecatedCommand = 21, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `UnknownError` [INFO] [stdout] --> printer/src/error.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | UnknownError = 100, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `buffer_image` [INFO] [stdout] --> printer/src/printer.rs:109:12 [INFO] [stdout] | [INFO] [stdout] 109 | pub fn buffer_image(&mut self, image: Image) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `width` [INFO] [stdout] --> printer/src/content.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | width: u16, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `height` [INFO] [stdout] --> printer/src/content.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | height: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `data` [INFO] [stdout] --> printer/src/content.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | data: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `from` [INFO] [stdout] --> printer/src/content.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn from(data: Vec, width: u16, height: u16) -> Image { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `append` [INFO] [stdout] --> printer/src/content.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn append(&mut self, data: Vec) -> Result<(), Utf8Error> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Command` [INFO] [stdout] --> printer/src/command.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | pub type Command = fn(bytes: &mut Vec) -> Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> printer/src/main.rs:30:17 [INFO] [stdout] | [INFO] [stdout] 30 | val(&mut printer, &mut contents); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> printer/src/main.rs:43:21 [INFO] [stdout] | [INFO] [stdout] 43 | file.write_all(data.as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> printer/src/esc_pos/print_position.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | printer.set_justification(justification); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> printer/src/formatter.rs:55:31 [INFO] [stdout] | [INFO] [stdout] 55 | fn format_text(&mut self, mut data: Text) { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 28 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `TopLevelCommands` [INFO] [stdout] --> printer/src/esc_pos/tree.rs:16:6 [INFO] [stdout] | [INFO] [stdout] 16 | enum TopLevelCommands { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `DeprecatedCommand` [INFO] [stdout] --> printer/src/error.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | DeprecatedCommand = 21, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `UnknownError` [INFO] [stdout] --> printer/src/error.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | UnknownError = 100, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `buffer_image` [INFO] [stdout] --> printer/src/printer.rs:109:12 [INFO] [stdout] | [INFO] [stdout] 109 | pub fn buffer_image(&mut self, image: Image) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `width` [INFO] [stdout] --> printer/src/content.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | width: u16, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `height` [INFO] [stdout] --> printer/src/content.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | height: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `data` [INFO] [stdout] --> printer/src/content.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | data: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `from` [INFO] [stdout] --> printer/src/content.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn from(data: Vec, width: u16, height: u16) -> Image { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `append` [INFO] [stdout] --> printer/src/content.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn append(&mut self, data: Vec) -> Result<(), Utf8Error> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `Command` [INFO] [stdout] --> printer/src/command.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | pub type Command = fn(bytes: &mut Vec) -> Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> printer/src/main.rs:30:17 [INFO] [stdout] | [INFO] [stdout] 30 | val(&mut printer, &mut contents); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> printer/src/main.rs:43:21 [INFO] [stdout] | [INFO] [stdout] 43 | file.write_all(data.as_bytes()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> printer/src/esc_pos/print_position.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | printer.set_justification(justification); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 28 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 19.87s [INFO] running `Command { std: "docker" "inspect" "1ff206ccdce440e08b873d65d17d75322fa7d97108561346dc4aad60bfceedd5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ff206ccdce440e08b873d65d17d75322fa7d97108561346dc4aad60bfceedd5", kill_on_drop: false }` [INFO] [stdout] 1ff206ccdce440e08b873d65d17d75322fa7d97108561346dc4aad60bfceedd5