[INFO] cloning repository https://github.com/hemangandhi/ascii-cam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hemangandhi/ascii-cam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemangandhi%2Fascii-cam", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemangandhi%2Fascii-cam'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25b998ed9f1c0573b08f3e43da6fb06eb4a6699f
[INFO] testing hemangandhi/ascii-cam against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhemangandhi%2Fascii-cam" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hemangandhi/ascii-cam on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hemangandhi/ascii-cam
[INFO] finished tweaking git repo https://github.com/hemangandhi/ascii-cam
[INFO] tweaked toml for git repo https://github.com/hemangandhi/ascii-cam written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hemangandhi/ascii-cam 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" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rscam v0.5.4
[INFO] [stderr]   Downloaded num-derive v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d8c4056a26419c7defb7e888e916cef083df3bedbbbac6b4d19684eb056f45d
[INFO] running `Command { std: "docker" "start" "-a" "6d8c4056a26419c7defb7e888e916cef083df3bedbbbac6b4d19684eb056f45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d8c4056a26419c7defb7e888e916cef083df3bedbbbac6b4d19684eb056f45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d8c4056a26419c7defb7e888e916cef083df3bedbbbac6b4d19684eb056f45d", kill_on_drop: false }`
[INFO] [stdout] 6d8c4056a26419c7defb7e888e916cef083df3bedbbbac6b4d19684eb056f45d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75edea6745fc4ccff914810083dce3d593b25c6595a09b4faabc11538d3d95ca
[INFO] running `Command { std: "docker" "start" "-a" "75edea6745fc4ccff914810083dce3d593b25c6595a09b4faabc11538d3d95ca", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling adler32 v1.0.2
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling color_quant v1.0.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling inflate v0.4.2
[INFO] [stderr]    Compiling gif v0.10.0
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling num-derive v0.2.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.14
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling ascii-cam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filters.rs:21:41
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = dyn Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `carl2`
[INFO] [stdout]    --> src/main.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let carl2 = & *(filters::gaussian_blur(7.0));
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_carl2`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters in type aliases are not enforced
[INFO] [stdout]   --> src/filters.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^ will not be checked at usage sites of the type alias
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is a known limitation of the type checker that may be lifted in a future edition.
[INFO] [stdout]            see issue #112792 <https://github.com/rust-lang/rust/issues/112792> for more information
[INFO] [stdout]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: remove this bound
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout] 21 + pub type ImageFilter<P> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |
[INFO] [stdout] help: fully qualify this associated type
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<<P as /* Trait */>::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |                                                                      +  +++++++++++++++
[INFO] [stdout] help: fully qualify this associated type
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<<P as /* Trait */>::Subpixel>>;
[INFO] [stdout]    |                                                                                                                  +  +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.48s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "75edea6745fc4ccff914810083dce3d593b25c6595a09b4faabc11538d3d95ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75edea6745fc4ccff914810083dce3d593b25c6595a09b4faabc11538d3d95ca", kill_on_drop: false }`
[INFO] [stdout] 75edea6745fc4ccff914810083dce3d593b25c6595a09b4faabc11538d3d95ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 463befe5dbfe510a2a96b99aab2e4569a587ee791c648d3bee7a96afcc0cacf1
[INFO] running `Command { std: "docker" "start" "-a" "463befe5dbfe510a2a96b99aab2e4569a587ee791c648d3bee7a96afcc0cacf1", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling ascii-cam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/filters.rs:21:41
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = dyn Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `carl2`
[INFO] [stdout]    --> src/main.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let carl2 = & *(filters::gaussian_blur(7.0));
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_carl2`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters in type aliases are not enforced
[INFO] [stdout]   --> src/filters.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^ will not be checked at usage sites of the type alias
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is a known limitation of the type checker that may be lifted in a future edition.
[INFO] [stdout]            see issue #112792 <https://github.com/rust-lang/rust/issues/112792> for more information
[INFO] [stdout]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: remove this bound
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout] 21 + pub type ImageFilter<P> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |
[INFO] [stdout] help: fully qualify this associated type
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<<P as /* Trait */>::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stdout]    |                                                                      +  +++++++++++++++
[INFO] [stdout] help: fully qualify this associated type
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<<P as /* Trait */>::Subpixel>>;
[INFO] [stdout]    |                                                                                                                  +  +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "463befe5dbfe510a2a96b99aab2e4569a587ee791c648d3bee7a96afcc0cacf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "463befe5dbfe510a2a96b99aab2e4569a587ee791c648d3bee7a96afcc0cacf1", kill_on_drop: false }`
[INFO] [stdout] 463befe5dbfe510a2a96b99aab2e4569a587ee791c648d3bee7a96afcc0cacf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b3186968194df2cbf91cd05336c042c9cbfeec49d800b2a33cb77406ce496fd
[INFO] running `Command { std: "docker" "start" "-a" "1b3186968194df2cbf91cd05336c042c9cbfeec49d800b2a33cb77406ce496fd", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/filters.rs:21:41
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub type ImageFilter<P: image::Pixel> = dyn Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stderr]    |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `carl2`
[INFO] [stderr]    --> src/main.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let carl2 = & *(filters::gaussian_blur(7.0));
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_carl2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters in type aliases are not enforced
[INFO] [stderr]   --> src/filters.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stderr]    |                         ^^^^^^^^^^^^ will not be checked at usage sites of the type alias
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is a known limitation of the type checker that may be lifted in a future edition.
[INFO] [stderr]            see issue #112792 <https://github.com/rust-lang/rust/issues/112792> for more information
[INFO] [stderr]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stderr] help: remove this bound
[INFO] [stderr]    |
[INFO] [stderr] 21 - pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stderr] 21 + pub type ImageFilter<P> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stderr]    |
[INFO] [stderr] help: fully qualify this associated type
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<<P as /* Trait */>::Subpixel>>) -> image::ImageBuffer<P, Vec<P::Subpixel>>;
[INFO] [stderr]    |                                                                      +  +++++++++++++++
[INFO] [stderr] help: fully qualify this associated type
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub type ImageFilter<P: image::Pixel> = Fn(image::ImageBuffer<P, Vec<P::Subpixel>>) -> image::ImageBuffer<P, Vec<<P as /* Trait */>::Subpixel>>;
[INFO] [stderr]    |                                                                                                                  +  +++++++++++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `ascii-cam` (bin "ascii-cam" test) generated 5 warnings (run `cargo fix --bin "ascii-cam" --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ascii_cam-3b556c51141efd2e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b3186968194df2cbf91cd05336c042c9cbfeec49d800b2a33cb77406ce496fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b3186968194df2cbf91cd05336c042c9cbfeec49d800b2a33cb77406ce496fd", kill_on_drop: false }`
[INFO] [stdout] 1b3186968194df2cbf91cd05336c042c9cbfeec49d800b2a33cb77406ce496fd
