[INFO] cloning repository https://github.com/YoavNir1999/image_to_pallete
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YoavNir1999/image_to_pallete" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoavNir1999%2Fimage_to_pallete", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoavNir1999%2Fimage_to_pallete'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] feb41ce47ca7f2251a090fc21bbed3f8cf033da4
[INFO] checking YoavNir1999/image_to_pallete against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoavNir1999%2Fimage_to_pallete" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/YoavNir1999/image_to_pallete
[INFO] finished tweaking git repo https://github.com/YoavNir1999/image_to_pallete
[INFO] tweaked toml for git repo https://github.com/YoavNir1999/image_to_pallete written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/YoavNir1999/image_to_pallete on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/YoavNir1999/image_to_pallete 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jpeg-decoder v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5d7dfcd5fe46c78693ff2e7d34725533627179fb69ccb21fef1f183fd2e4c6a
[INFO] running `Command { std: "docker" "start" "-a" "d5d7dfcd5fe46c78693ff2e7d34725533627179fb69ccb21fef1f183fd2e4c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5d7dfcd5fe46c78693ff2e7d34725533627179fb69ccb21fef1f183fd2e4c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5d7dfcd5fe46c78693ff2e7d34725533627179fb69ccb21fef1f183fd2e4c6a", kill_on_drop: false }`
[INFO] [stdout] d5d7dfcd5fe46c78693ff2e7d34725533627179fb69ccb21fef1f183fd2e4c6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c32f27d7f3bf1f05b031bd1691a3218b52319360b2112fa680356ba7a81d04f2
[INFO] running `Command { std: "docker" "start" "-a" "c32f27d7f3bf1f05b031bd1691a3218b52319360b2112fa680356ba7a81d04f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling rayon-core v1.9.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.23
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num-iter v0.1.43
[INFO] [stderr]     Checking jpeg-decoder v0.2.4
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]     Checking tiff v0.7.2
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking flume v0.10.12
[INFO] [stderr]     Checking exr v1.4.2
[INFO] [stderr]     Checking image v0.24.2
[INFO] [stderr]     Checking image_to_color_scheme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/kmeans.rs:132:33
[INFO] [stdout]     |
[INFO] [stdout] 132 |     for pixel in pixels.map(|i| (i.2)) {
[INFO] [stdout]     |                                 ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 132 -     for pixel in pixels.map(|i| (i.2)) {
[INFO] [stdout] 132 +     for pixel in pixels.map(|i| i.2 ) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:37:56
[INFO] [stdout]    |
[INFO] [stdout] 37 | ...es.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout]    |                         ^                                                                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -     let files : Vec<&String> = files.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout] 37 +     let files : Vec<&String> = files.iter().filter(|x| return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg" ).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:49:56
[INFO] [stdout]    |
[INFO] [stdout] 49 | ...es.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout]    |                         ^                                                                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     let files : Vec<&String> = files.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout] 49 +     let files : Vec<&String> = files.iter().filter(|x| return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg" ).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:61:56
[INFO] [stdout]    |
[INFO] [stdout] 61 | ...es.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout]    |                         ^                                                                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     let files : Vec<&String> = files.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout] 61 +     let files : Vec<&String> = files.iter().filter(|x| return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg" ).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:63:58
[INFO] [stdout]    |
[INFO] [stdout] 63 | ...me.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout]    |                         ^                                                                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     let scheme : Vec<&String> = scheme.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout] 63 +     let scheme : Vec<&String> = scheme.iter().filter(|x| return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg" ).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/kmeans.rs:132:33
[INFO] [stdout]     |
[INFO] [stdout] 132 |     for pixel in pixels.map(|i| (i.2)) {
[INFO] [stdout]     |                                 ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 132 -     for pixel in pixels.map(|i| (i.2)) {
[INFO] [stdout] 132 +     for pixel in pixels.map(|i| i.2 ) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:37:56
[INFO] [stdout]    |
[INFO] [stdout] 37 | ...es.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout]    |                         ^                                                                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 37 -     let files : Vec<&String> = files.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout] 37 +     let files : Vec<&String> = files.iter().filter(|x| return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg" ).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:49:56
[INFO] [stdout]    |
[INFO] [stdout] 49 | ...es.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout]    |                         ^                                                                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     let files : Vec<&String> = files.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout] 49 +     let files : Vec<&String> = files.iter().filter(|x| return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg" ).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:61:56
[INFO] [stdout]    |
[INFO] [stdout] 61 | ...es.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout]    |                         ^                                                                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     let files : Vec<&String> = files.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout] 61 +     let files : Vec<&String> = files.iter().filter(|x| return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg" ).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/main.rs:63:58
[INFO] [stdout]    |
[INFO] [stdout] 63 | ...me.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout]    |                         ^                                                                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     let scheme : Vec<&String> = scheme.iter().filter(|x| (return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg")).collect();
[INFO] [stdout] 63 +     let scheme : Vec<&String> = scheme.iter().filter(|x| return_file_ext(x)=="jpg" || return_file_ext(x)=="png" || return_file_ext(x)=="jpeg" ).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&String` instead of cloning the inner type
[INFO] [stdout]   --> src/main.rs:51:51
[INFO] [stdout]    |
[INFO] [stdout] 51 |     files.par_iter().for_each(|x| scheme_to_file(x.clone().to_owned(),image_to_hex(x.clone().to_owned(),k)));
[INFO] [stdout]    |                                                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&String` instead of cloning the inner type
[INFO] [stdout]   --> src/main.rs:51:85
[INFO] [stdout]    |
[INFO] [stdout] 51 |     files.par_iter().for_each(|x| scheme_to_file(x.clone().to_owned(),image_to_hex(x.clone().to_owned(),k)));
[INFO] [stdout]    |                                                                                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&String` instead of cloning the inner type
[INFO] [stdout]   --> src/main.rs:51:51
[INFO] [stdout]    |
[INFO] [stdout] 51 |     files.par_iter().for_each(|x| scheme_to_file(x.clone().to_owned(),image_to_hex(x.clone().to_owned(),k)));
[INFO] [stdout]    |                                                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&String` instead of cloning the inner type
[INFO] [stdout]   --> src/main.rs:51:85
[INFO] [stdout]    |
[INFO] [stdout] 51 |     files.par_iter().for_each(|x| scheme_to_file(x.clone().to_owned(),image_to_hex(x.clone().to_owned(),k)));
[INFO] [stdout]    |                                                                                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.86s
[INFO] running `Command { std: "docker" "inspect" "c32f27d7f3bf1f05b031bd1691a3218b52319360b2112fa680356ba7a81d04f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32f27d7f3bf1f05b031bd1691a3218b52319360b2112fa680356ba7a81d04f2", kill_on_drop: false }`
[INFO] [stdout] c32f27d7f3bf1f05b031bd1691a3218b52319360b2112fa680356ba7a81d04f2