[INFO] cloning repository https://github.com/wbv/photomanip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wbv/photomanip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwbv%2Fphotomanip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwbv%2Fphotomanip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ecc4a703027c5e4a5603c7ac1a753bb400321f3
[INFO] building wbv/photomanip against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwbv%2Fphotomanip" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wbv/photomanip on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wbv/photomanip
[INFO] finished tweaking git repo https://github.com/wbv/photomanip
[INFO] tweaked toml for git repo https://github.com/wbv/photomanip written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wbv/photomanip 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4dc6dbcca274bd6b7f6619221089963f00afc295ed7e737a689b936a9887ab54
[INFO] running `Command { std: "docker" "start" "-a" "4dc6dbcca274bd6b7f6619221089963f00afc295ed7e737a689b936a9887ab54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dc6dbcca274bd6b7f6619221089963f00afc295ed7e737a689b936a9887ab54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dc6dbcca274bd6b7f6619221089963f00afc295ed7e737a689b936a9887ab54", kill_on_drop: false }`
[INFO] [stdout] 4dc6dbcca274bd6b7f6619221089963f00afc295ed7e737a689b936a9887ab54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9024c14ccca3604c7382958698ddc2ededc01cecbeb84b4ecb61cff43fba5977
[INFO] running `Command { std: "docker" "start" "-a" "9024c14ccca3604c7382958698ddc2ededc01cecbeb84b4ecb61cff43fba5977", kill_on_drop: false }`
[INFO] [stderr]    Compiling photomanip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/image.rs:79:47
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<'a> ImageHeader<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 79 |     fn read(filedata: &'a [u8]) -> io::Result<ImageHeader> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ColorImage` is more private than the item `ImageManip::brighten`
[INFO] [stdout]    --> src/image.rs:449:5
[INFO] [stdout]     |
[INFO] [stdout] 449 |     fn brighten(&self, amount: i32) -> ColorImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::brighten` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ColorImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | struct ColorImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `GrayImage` is more private than the item `ImageManip::contrast`
[INFO] [stdout]    --> src/image.rs:450:5
[INFO] [stdout]     |
[INFO] [stdout] 450 |     fn contrast(&self) -> GrayImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::contrast` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `GrayImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:26:1
[INFO] [stdout]     |
[INFO] [stdout] 26  | struct GrayImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `GrayImage` is more private than the item `ImageManip::grayscale`
[INFO] [stdout]    --> src/image.rs:451:5
[INFO] [stdout]     |
[INFO] [stdout] 451 |     fn grayscale(&self) -> GrayImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::grayscale` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `GrayImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:26:1
[INFO] [stdout]     |
[INFO] [stdout] 26  | struct GrayImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ColorImage` is more private than the item `ImageManip::negate`
[INFO] [stdout]    --> src/image.rs:452:5
[INFO] [stdout]     |
[INFO] [stdout] 452 |     fn negate(&self) -> ColorImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::negate` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ColorImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | struct ColorImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ColorImage` is more private than the item `ImageManip::sharpen`
[INFO] [stdout]    --> src/image.rs:453:5
[INFO] [stdout]     |
[INFO] [stdout] 453 |     fn sharpen(&self) -> ColorImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::sharpen` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ColorImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | struct ColorImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ColorImage` is more private than the item `ImageManip::smooth`
[INFO] [stdout]    --> src/image.rs:454:5
[INFO] [stdout]     |
[INFO] [stdout] 454 |     fn smooth(&self) -> ColorImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::smooth` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ColorImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | struct ColorImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/args.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Brighten(usize),
[INFO] [stdout]    |     -------- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Brighten(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `op`, `mode`, `infile`, and `outfile` are never read
[INFO] [stdout]   --> src/args.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct ProgOpts {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 34 |     op: ManipOption,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 35 |     mode: OutputMode,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 36 |     infile: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 37 |     outfile: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, `maxval`, `rpixels`, `gpixels`, and `bpixels` are never read
[INFO] [stdout]   --> src/image.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct ColorImage {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 17 |     width: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 19 |     maxval: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 20 |     rpixels: Vec<PxVal>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 21 |     gpixels: Vec<PxVal>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 22 |     bpixels: Vec<PxVal>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, `maxval`, and `pixels` are never read
[INFO] [stdout]   --> src/image.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct GrayImage {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 27 |     width: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 28 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     maxval: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 30 |     pixels: Vec<PxVal>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ImageType` is never used
[INFO] [stdout]   --> src/image.rs:34:6
[INFO] [stdout]    |
[INFO] [stdout] 34 | enum ImageType {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ColorType` is never used
[INFO] [stdout]   --> src/image.rs:39:6
[INFO] [stdout]    |
[INFO] [stdout] 39 | enum ColorType {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RasterType` is never used
[INFO] [stdout]   --> src/image.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 | enum RasterType {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_color` is never read
[INFO] [stdout]   --> src/image.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct ImageHeader<'a> {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 50 |     is_color: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `read` and `get_kind` are never used
[INFO] [stdout]    --> src/image.rs:79:8
[INFO] [stdout]     |
[INFO] [stdout] 58  | impl<'a> ImageHeader<'a> {
[INFO] [stdout]     | ------------------------ associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79  |     fn read(filedata: &'a [u8]) -> io::Result<ImageHeader> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     fn get_kind(filedata: &[u8]) -> io::Result<(ColorType, RasterType)> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Image` is never constructed
[INFO] [stdout]    --> src/image.rs:239:12
[INFO] [stdout]     |
[INFO] [stdout] 239 | pub struct Image(ImageType);
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `load` is never used
[INFO] [stdout]    --> src/image.rs:244:12
[INFO] [stdout]     |
[INFO] [stdout] 241 | impl Image {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 244 |     pub fn load(path: &str) -> io::Result<Self> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `brighten`, `contrast`, `grayscale`, `negate`, `sharpen`, and `smooth` are never used
[INFO] [stdout]    --> src/image.rs:449:8
[INFO] [stdout]     |
[INFO] [stdout] 448 | pub trait ImageManip {
[INFO] [stdout]     |           ---------- methods in this trait
[INFO] [stdout] 449 |     fn brighten(&self, amount: i32) -> ColorImage;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 450 |     fn contrast(&self) -> GrayImage;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 451 |     fn grayscale(&self) -> GrayImage;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 452 |     fn negate(&self) -> ColorImage;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 453 |     fn sharpen(&self) -> ColorImage;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 454 |     fn smooth(&self) -> ColorImage;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "9024c14ccca3604c7382958698ddc2ededc01cecbeb84b4ecb61cff43fba5977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9024c14ccca3604c7382958698ddc2ededc01cecbeb84b4ecb61cff43fba5977", kill_on_drop: false }`
[INFO] [stdout] 9024c14ccca3604c7382958698ddc2ededc01cecbeb84b4ecb61cff43fba5977
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e8cf20b6f3f67909ad5d5d08498328fb62487b2d61b07121e43b6d7ec0466dd
[INFO] running `Command { std: "docker" "start" "-a" "0e8cf20b6f3f67909ad5d5d08498328fb62487b2d61b07121e43b6d7ec0466dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling photomanip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/image.rs:79:47
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<'a> ImageHeader<'a> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 79 |     fn read(filedata: &'a [u8]) -> io::Result<ImageHeader> {
[INFO] [stdout]    |                                               ^^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `image::ColorImage` is more private than the item `ImageManip::brighten`
[INFO] [stdout]    --> src/image.rs:449:5
[INFO] [stdout]     |
[INFO] [stdout] 449 |     fn brighten(&self, amount: i32) -> ColorImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::brighten` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `image::ColorImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | struct ColorImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `image::GrayImage` is more private than the item `ImageManip::contrast`
[INFO] [stdout]    --> src/image.rs:450:5
[INFO] [stdout]     |
[INFO] [stdout] 450 |     fn contrast(&self) -> GrayImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::contrast` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `image::GrayImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:26:1
[INFO] [stdout]     |
[INFO] [stdout] 26  | struct GrayImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `image::GrayImage` is more private than the item `ImageManip::grayscale`
[INFO] [stdout]    --> src/image.rs:451:5
[INFO] [stdout]     |
[INFO] [stdout] 451 |     fn grayscale(&self) -> GrayImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::grayscale` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `image::GrayImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:26:1
[INFO] [stdout]     |
[INFO] [stdout] 26  | struct GrayImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `image::ColorImage` is more private than the item `ImageManip::negate`
[INFO] [stdout]    --> src/image.rs:452:5
[INFO] [stdout]     |
[INFO] [stdout] 452 |     fn negate(&self) -> ColorImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::negate` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `image::ColorImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | struct ColorImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `image::ColorImage` is more private than the item `ImageManip::sharpen`
[INFO] [stdout]    --> src/image.rs:453:5
[INFO] [stdout]     |
[INFO] [stdout] 453 |     fn sharpen(&self) -> ColorImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::sharpen` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `image::ColorImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | struct ColorImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `image::ColorImage` is more private than the item `ImageManip::smooth`
[INFO] [stdout]    --> src/image.rs:454:5
[INFO] [stdout]     |
[INFO] [stdout] 454 |     fn smooth(&self) -> ColorImage;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ImageManip::smooth` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `image::ColorImage` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/image.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | struct ColorImage {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `brighten`, `contrast`, `grayscale`, `negate`, `sharpen`, and `smooth` are never used
[INFO] [stdout]    --> src/image.rs:449:8
[INFO] [stdout]     |
[INFO] [stdout] 448 | pub trait ImageManip {
[INFO] [stdout]     |           ---------- methods in this trait
[INFO] [stdout] 449 |     fn brighten(&self, amount: i32) -> ColorImage;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 450 |     fn contrast(&self) -> GrayImage;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 451 |     fn grayscale(&self) -> GrayImage;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 452 |     fn negate(&self) -> ColorImage;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 453 |     fn sharpen(&self) -> ColorImage;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 454 |     fn smooth(&self) -> ColorImage;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "0e8cf20b6f3f67909ad5d5d08498328fb62487b2d61b07121e43b6d7ec0466dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e8cf20b6f3f67909ad5d5d08498328fb62487b2d61b07121e43b6d7ec0466dd", kill_on_drop: false }`
[INFO] [stdout] 0e8cf20b6f3f67909ad5d5d08498328fb62487b2d61b07121e43b6d7ec0466dd