[INFO] cloning repository https://github.com/kyasu1/rust-ptouch-usb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kyasu1/rust-ptouch-usb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyasu1%2Frust-ptouch-usb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyasu1%2Frust-ptouch-usb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a24557dc82efbc231c2fa4be43e16eebca668187
[INFO] checking kyasu1/rust-ptouch-usb against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkyasu1%2Frust-ptouch-usb" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kyasu1/rust-ptouch-usb on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kyasu1/rust-ptouch-usb
[INFO] finished tweaking git repo https://github.com/kyasu1/rust-ptouch-usb
[INFO] tweaked toml for git repo https://github.com/kyasu1/rust-ptouch-usb written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kyasu1/rust-ptouch-usb 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.0
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[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] def4c42df3b88d4c175a5390a02925aebbbfb5cf42c9b77b0d5328cec0f909df
[INFO] running `Command { std: "docker" "start" "-a" "def4c42df3b88d4c175a5390a02925aebbbfb5cf42c9b77b0d5328cec0f909df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "def4c42df3b88d4c175a5390a02925aebbbfb5cf42c9b77b0d5328cec0f909df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def4c42df3b88d4c175a5390a02925aebbbfb5cf42c9b77b0d5328cec0f909df", kill_on_drop: false }`
[INFO] [stdout] def4c42df3b88d4c175a5390a02925aebbbfb5cf42c9b77b0d5328cec0f909df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 398c2c10c1127019b0e889d858af7f4a2b6dd43945d6280b88ceb16cfc84cb0b
[INFO] running `Command { std: "docker" "start" "-a" "398c2c10c1127019b0e889d858af7f4a2b6dd43945d6280b88ceb16cfc84cb0b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking either v1.6.1
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[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling num-iter v0.1.41
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[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling libusb1-sys v0.4.2
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[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking checked_int_cast v1.0.0
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[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking rusb v0.6.5
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.6.0
[INFO] [stderr]     Checking env_logger v0.8.1
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[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking ptouch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rusb` is imported redundantly
[INFO] [stdout]  --> src/error.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rusb;
[INFO] [stdout]   |     ^^^^ the item `rusb` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::media::Media`
[INFO] [stdout]  --> src/model.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::media::Media;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |             0x47 => (Self::QL600),
[INFO] [stdout]    |                     ^           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -             0x47 => (Self::QL600),
[INFO] [stdout] 28 +             0x47 => Self::QL600,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:29:21
[INFO] [stdout]    |
[INFO] [stdout] 29 |             0x37 => (Self::QL720NW),
[INFO] [stdout]    |                     ^             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 29 -             0x37 => (Self::QL720NW),
[INFO] [stdout] 29 +             0x37 => Self::QL720NW,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |             0x38 => (Self::QL800),
[INFO] [stdout]    |                     ^           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 -             0x38 => (Self::QL800),
[INFO] [stdout] 30 +             0x38 => Self::QL800,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:31:21
[INFO] [stdout]    |
[INFO] [stdout] 31 |             0x39 => (Self::QL810W),
[INFO] [stdout]    |                     ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 31 -             0x39 => (Self::QL810W),
[INFO] [stdout] 31 +             0x39 => Self::QL810W,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |             0x41 => (Self::QL820NWB),
[INFO] [stdout]    |                     ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -             0x41 => (Self::QL820NWB),
[INFO] [stdout] 32 +             0x41 => Self::QL820NWB,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 |             0x43 => (Self::QL1100),
[INFO] [stdout]    |                     ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 -             0x43 => (Self::QL1100),
[INFO] [stdout] 33 +             0x43 => Self::QL1100,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |             0x44 => (Self::QL1110NWB),
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 34 -             0x44 => (Self::QL1110NWB),
[INFO] [stdout] 34 +             0x44 => Self::QL1110NWB,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |             0x45 => (Self::QL1115NWB),
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -             0x45 => (Self::QL1115NWB),
[INFO] [stdout] 35 +             0x45 => Self::QL1115NWB,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/printer.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{debug, info, error};
[INFO] [stdout]   |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mm` and `dots` are never read
[INFO] [stdout]   --> src/media.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct MediaSize {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 38 |     mm: f32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 39 |     dots: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left`, `effective`, and `right` are never read
[INFO] [stdout]   --> src/media.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Width {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 43 |     mm: u8,
[INFO] [stdout] 44 |     left: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 45 |     effective: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 46 |     right: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dots` is never read
[INFO] [stdout]   --> src/media.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Length {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 50 |     mm: u8,
[INFO] [stdout] 51 |     dots: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `margin`, and `offset` are never read
[INFO] [stdout]   --> src/media.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct MediaSpec {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 55 |     id: u16,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     margin: MediaSize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 59 |     offset: Option<MediaSize>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `config`, `iface`, and `setting` are never read
[INFO] [stdout]   --> src/printer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Endpoint {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 14 |     config: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     iface: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     setting: u8,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Endpoint` 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: fields `model`, `error`, `mode`, `status_type`, `notification`, and `id` are never read
[INFO] [stdout]    --> src/printer.rs:372:5
[INFO] [stdout]     |
[INFO] [stdout] 371 | pub struct Status {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 372 |     model: Model,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 373 |     error: PrinterError,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 374 |     media: Option<Media>,
[INFO] [stdout] 375 |     mode: u8,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 376 |     status_type: StatusType,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 377 |     phase: Phase,
[INFO] [stdout] 378 |     notification: Notification,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 379 |     id: u8,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking qrcode v0.12.0
[INFO] [stdout] warning: the item `rusb` is imported redundantly
[INFO] [stdout]  --> src/error.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rusb;
[INFO] [stdout]   |     ^^^^ the item `rusb` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::media::Media`
[INFO] [stdout]  --> src/model.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::media::Media;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |             0x47 => (Self::QL600),
[INFO] [stdout]    |                     ^           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -             0x47 => (Self::QL600),
[INFO] [stdout] 28 +             0x47 => Self::QL600,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:29:21
[INFO] [stdout]    |
[INFO] [stdout] 29 |             0x37 => (Self::QL720NW),
[INFO] [stdout]    |                     ^             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 29 -             0x37 => (Self::QL720NW),
[INFO] [stdout] 29 +             0x37 => Self::QL720NW,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |             0x38 => (Self::QL800),
[INFO] [stdout]    |                     ^           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 -             0x38 => (Self::QL800),
[INFO] [stdout] 30 +             0x38 => Self::QL800,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:31:21
[INFO] [stdout]    |
[INFO] [stdout] 31 |             0x39 => (Self::QL810W),
[INFO] [stdout]    |                     ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 31 -             0x39 => (Self::QL810W),
[INFO] [stdout] 31 +             0x39 => Self::QL810W,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |             0x41 => (Self::QL820NWB),
[INFO] [stdout]    |                     ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -             0x41 => (Self::QL820NWB),
[INFO] [stdout] 32 +             0x41 => Self::QL820NWB,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 |             0x43 => (Self::QL1100),
[INFO] [stdout]    |                     ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 -             0x43 => (Self::QL1100),
[INFO] [stdout] 33 +             0x43 => Self::QL1100,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |             0x44 => (Self::QL1110NWB),
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 34 -             0x44 => (Self::QL1110NWB),
[INFO] [stdout] 34 +             0x44 => Self::QL1110NWB,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |             0x45 => (Self::QL1115NWB),
[INFO] [stdout]    |                     ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -             0x45 => (Self::QL1115NWB),
[INFO] [stdout] 35 +             0x45 => Self::QL1115NWB,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/printer.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{debug, info, error};
[INFO] [stdout]   |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ImageBuffer`, `Luma`
[INFO] [stdout]  --> examples/print_rust.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use image::{GenericImage, GenericImageView, ImageBuffer, Luma};
[INFO] [stdout]   |                                             ^^^^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DieCutType`
[INFO] [stdout]  --> examples/print_rust.rs:3:49
[INFO] [stdout]   |
[INFO] [stdout] 3 |     step_filter_normal, Config, ContinuousType, DieCutType, Matrix, Media, Model, Printer,
[INFO] [stdout]   |                                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> examples/print_rust.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `TestLabelNormalRes`, `TestLabelHighRes`, and `TestLabelHighResMultiple` are never constructed
[INFO] [stdout]   --> examples/print_rust.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     enum PrintOption {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] 12 |         TestLabelNormalRes,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |         TestLabelHighRes,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |         TestLabelHighResMultiple,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mm` and `dots` are never read
[INFO] [stdout]   --> src/media.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct MediaSize {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 38 |     mm: f32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 39 |     dots: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left`, `effective`, and `right` are never read
[INFO] [stdout]   --> src/media.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Width {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 43 |     mm: u8,
[INFO] [stdout] 44 |     left: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 45 |     effective: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 46 |     right: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dots` is never read
[INFO] [stdout]   --> src/media.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Length {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 50 |     mm: u8,
[INFO] [stdout] 51 |     dots: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `margin`, and `offset` are never read
[INFO] [stdout]   --> src/media.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct MediaSpec {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 55 |     id: u16,
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     margin: MediaSize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 59 |     offset: Option<MediaSize>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `config`, `iface`, and `setting` are never read
[INFO] [stdout]   --> src/printer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Endpoint {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 14 |     config: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     iface: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     setting: u8,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Endpoint` 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: fields `model`, `error`, `mode`, `status_type`, `notification`, and `id` are never read
[INFO] [stdout]    --> src/printer.rs:372:5
[INFO] [stdout]     |
[INFO] [stdout] 371 | pub struct Status {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 372 |     model: Model,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 373 |     error: PrinterError,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 374 |     media: Option<Media>,
[INFO] [stdout] 375 |     mode: u8,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 376 |     status_type: StatusType,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 377 |     phase: Phase,
[INFO] [stdout] 378 |     notification: Notification,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 379 |     id: u8,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.39s
[INFO] running `Command { std: "docker" "inspect" "398c2c10c1127019b0e889d858af7f4a2b6dd43945d6280b88ceb16cfc84cb0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "398c2c10c1127019b0e889d858af7f4a2b6dd43945d6280b88ceb16cfc84cb0b", kill_on_drop: false }`
[INFO] [stdout] 398c2c10c1127019b0e889d858af7f4a2b6dd43945d6280b88ceb16cfc84cb0b