[INFO] cloning repository https://github.com/nikita-skobov/byte-visualizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nikita-skobov/byte-visualizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Fbyte-visualizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Fbyte-visualizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c35c3d1490662078142587d50c08bfd74807b23
[INFO] checking nikita-skobov/byte-visualizer against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Fbyte-visualizer" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikita-skobov/byte-visualizer on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nikita-skobov/byte-visualizer
[INFO] finished tweaking git repo https://github.com/nikita-skobov/byte-visualizer
[INFO] tweaked toml for git repo https://github.com/nikita-skobov/byte-visualizer written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/nikita-skobov/byte-visualizer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb3cf6c29511e9eb314db5cdd697b756d9df1395b024768079e417333a45d2ba
[INFO] running `Command { std: "docker" "start" "-a" "eb3cf6c29511e9eb314db5cdd697b756d9df1395b024768079e417333a45d2ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb3cf6c29511e9eb314db5cdd697b756d9df1395b024768079e417333a45d2ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb3cf6c29511e9eb314db5cdd697b756d9df1395b024768079e417333a45d2ba", kill_on_drop: false }`
[INFO] [stdout] eb3cf6c29511e9eb314db5cdd697b756d9df1395b024768079e417333a45d2ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c6037c29ee25681a13d674e0b326dbb4bebe21753dc13b34ea425e865def43e
[INFO] running `Command { std: "docker" "start" "-a" "1c6037c29ee25681a13d674e0b326dbb4bebe21753dc13b34ea425e865def43e", kill_on_drop: false }`
[INFO] [stderr]     Checking byte-visualizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]    --> src/image_data/get_image_data.rs:251:13
[INFO] [stdout]     |
[INFO] [stdout] 251 |         use std::fs;
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/image_data/png.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 (n + {if data.len() == n * CHUNK_SIZE && data.len() != 0 { 0 } else { 1 }})
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/main.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 |     use std::time::{Duration, Instant};
[INFO] [stdout]   |                     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/image_data/png.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 (n + {if data.len() == n * CHUNK_SIZE && data.len() != 0 { 0 } else { 1 }})
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/main.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 |     use std::time::{Duration, Instant};
[INFO] [stdout]   |                     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_image_data`
[INFO] [stdout]  --> src/image_data/get_image_data.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn get_image_data(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_blended_pixel`
[INFO] [stdout]   --> src/image_data/pixels.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn get_blended_pixel(bottom: Pixel, top: Pixel) -> Pixel {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_pixel_data`
[INFO] [stdout]   --> src/image_data/sprite.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn set_pixel_data(&mut self, data: Vec<pixels::Pixel>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_image_data`
[INFO] [stdout]  --> src/image_data/get_image_data.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn get_image_data(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_blended_pixel`
[INFO] [stdout]   --> src/image_data/pixels.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn get_blended_pixel(bottom: Pixel, top: Pixel) -> Pixel {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "1c6037c29ee25681a13d674e0b326dbb4bebe21753dc13b34ea425e865def43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c6037c29ee25681a13d674e0b326dbb4bebe21753dc13b34ea425e865def43e", kill_on_drop: false }`
[INFO] [stdout] 1c6037c29ee25681a13d674e0b326dbb4bebe21753dc13b34ea425e865def43e