[INFO] cloning repository https://github.com/thepowersgang/inverse_fft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thepowersgang/inverse_fft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthepowersgang%2Finverse_fft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthepowersgang%2Finverse_fft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bca22ec676356a9f16caf40e5415329a9b4b6e4
[INFO] checking thepowersgang/inverse_fft against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthepowersgang%2Finverse_fft" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thepowersgang/inverse_fft on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thepowersgang/inverse_fft
[INFO] finished tweaking git repo https://github.com/thepowersgang/inverse_fft
[INFO] tweaked toml for git repo https://github.com/thepowersgang/inverse_fft written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/thepowersgang/inverse_fft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-14/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99c290cfd93c81a80ca06ad783d62ae249e559175455d3f102c54588069f1c7f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "99c290cfd93c81a80ca06ad783d62ae249e559175455d3f102c54588069f1c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99c290cfd93c81a80ca06ad783d62ae249e559175455d3f102c54588069f1c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99c290cfd93c81a80ca06ad783d62ae249e559175455d3f102c54588069f1c7f", kill_on_drop: false }`
[INFO] [stdout] 99c290cfd93c81a80ca06ad783d62ae249e559175455d3f102c54588069f1c7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 633ed3c6c4b3e4d965eb941783cc3eb0fad47b42bf1c5a1a8851746b7d41aa91
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "633ed3c6c4b3e4d965eb941783cc3eb0fad47b42bf1c5a1a8851746b7d41aa91", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]     Checking image v0.23.9
[INFO] [stderr]     Checking inv_fft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let legend = (-140.0 .. -25.0);
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let frequencies = (10.0 .. 5500.0);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:21:53
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let fs = image_to_frequencies(&image, frequencies, (0.0 .. max_time), legend );
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::std::io::Write`
[INFO] [stdout]   --> src/main.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |             use ::std::io::Write;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `image::GenericImage`
[INFO] [stdout]   --> src/main.rs:67:6
[INFO] [stdout]    |
[INFO] [stdout] 67 |     use image::GenericImage;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:166:14
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 for i in (0 .. interpolation_count) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |             for i in (start .. end)
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:183:14
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 for j in (0 .. interpolation_count) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
[INFO] [stdout]   --> src/main.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     env_logger::init().unwrap();
[INFO] [stdout]    |                        ^^^^^^ method not found in `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let legend = (-140.0 .. -25.0);
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/main.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let frequencies = (10.0 .. 5500.0);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:21:53
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let fs = image_to_frequencies(&image, frequencies, (0.0 .. max_time), legend );
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::std::io::Write`
[INFO] [stdout]   --> src/main.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |             use ::std::io::Write;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `image::GenericImage`
[INFO] [stdout]   --> src/main.rs:67:6
[INFO] [stdout]    |
[INFO] [stdout] 67 |     use image::GenericImage;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:166:14
[INFO] [stdout]     |
[INFO] [stdout] 166 |                 for i in (0 .. interpolation_count) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |             for i in (start .. end)
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:183:14
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 for j in (0 .. interpolation_count) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `PNG` found for enum `ImageFormat` in the current scope
[INFO] [stdout]   --> src/main.rs:72:88
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let pi = image::load(::std::fs::File::open("input.png").unwrap(), image::ImageFormat::PNG).unwrap();
[INFO] [stdout]    |                                                                                           ^^^ variant or associated item not found in `ImageFormat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `File: BufRead` is not satisfied
[INFO] [stdout]   --> src/main.rs:72:23
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let pi = image::load(::std::fs::File::open("input.png").unwrap(), image::ImageFormat::PNG).unwrap();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `BufRead` is not implemented for `File`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/image-0.23.9/./src/io/free_functions.rs:65:16
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn load<R: BufRead + Seek>(r: R, format: ImageFormat) -> ImageResult<DynamicImage> {
[INFO] [stdout]    |                ------- required by this bound in `load`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `width` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:75:42
[INFO] [stdout]    |
[INFO] [stdout] 75 |         data: ::std::iter::repeat(0).take( (pi.width()*pi.height()) as usize ).collect(),
[INFO] [stdout]    |                                                ^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `height` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:75:53
[INFO] [stdout]    |
[INFO] [stdout] 75 |         data: ::std::iter::repeat(0).take( (pi.width()*pi.height()) as usize ).collect(),
[INFO] [stdout]    |                                                           ^^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `width` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         width: pi.width() as usize,
[INFO] [stdout]    |                   ^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `pixels` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:79:15
[INFO] [stdout]    |
[INFO] [stdout] 79 |     for px in pi.pixels()
[INFO] [stdout]    |                  ^^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `width` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:81:31
[INFO] [stdout]    |
[INFO] [stdout] 81 |         ret.data[ (px.0 + px.1 * pi.width()) as usize ] = px.2.to_luma().data[0];
[INFO] [stdout]    |                                     ^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `image::Pixel`
[INFO] [stdout]   --> src/main.rs:68:6
[INFO] [stdout]    |
[INFO] [stdout] 68 |     use image::Pixel;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
[INFO] [stdout]   --> src/main.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     env_logger::init().unwrap();
[INFO] [stdout]    |                        ^^^^^^ method not found in `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `inv_fft`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no variant or associated item named `PNG` found for enum `ImageFormat` in the current scope
[INFO] [stdout]   --> src/main.rs:72:88
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let pi = image::load(::std::fs::File::open("input.png").unwrap(), image::ImageFormat::PNG).unwrap();
[INFO] [stdout]    |                                                                                           ^^^ variant or associated item not found in `ImageFormat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `File: BufRead` is not satisfied
[INFO] [stdout]   --> src/main.rs:72:23
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let pi = image::load(::std::fs::File::open("input.png").unwrap(), image::ImageFormat::PNG).unwrap();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `BufRead` is not implemented for `File`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/image-0.23.9/./src/io/free_functions.rs:65:16
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn load<R: BufRead + Seek>(r: R, format: ImageFormat) -> ImageResult<DynamicImage> {
[INFO] [stdout]    |                ------- required by this bound in `load`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `width` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:75:42
[INFO] [stdout]    |
[INFO] [stdout] 75 |         data: ::std::iter::repeat(0).take( (pi.width()*pi.height()) as usize ).collect(),
[INFO] [stdout]    |                                                ^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `height` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:75:53
[INFO] [stdout]    |
[INFO] [stdout] 75 |         data: ::std::iter::repeat(0).take( (pi.width()*pi.height()) as usize ).collect(),
[INFO] [stdout]    |                                                           ^^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `width` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         width: pi.width() as usize,
[INFO] [stdout]    |                   ^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `pixels` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:79:15
[INFO] [stdout]    |
[INFO] [stdout] 79 |     for px in pi.pixels()
[INFO] [stdout]    |                  ^^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `width` found for enum `DynamicImage` in the current scope
[INFO] [stdout]   --> src/main.rs:81:31
[INFO] [stdout]    |
[INFO] [stdout] 81 |         ret.data[ (px.0 + px.1 * pi.width()) as usize ] = px.2.to_luma().data[0];
[INFO] [stdout]    |                                     ^^^^^ method not found in `DynamicImage`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 10 | use image::GenericImageView;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `image::Pixel`
[INFO] [stdout]   --> src/main.rs:68:6
[INFO] [stdout]    |
[INFO] [stdout] 68 |     use image::Pixel;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "633ed3c6c4b3e4d965eb941783cc3eb0fad47b42bf1c5a1a8851746b7d41aa91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "633ed3c6c4b3e4d965eb941783cc3eb0fad47b42bf1c5a1a8851746b7d41aa91", kill_on_drop: false }`
[INFO] [stdout] 633ed3c6c4b3e4d965eb941783cc3eb0fad47b42bf1c5a1a8851746b7d41aa91
