[INFO] updating cached repository https://github.com/nikita-skobov/byte-visualizer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8c35c3d1490662078142587d50c08bfd74807b23
[INFO] checking nikita-skobov/byte-visualizer against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Fbyte-visualizer" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikita-skobov/byte-visualizer on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-4/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 `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 10ab8b80f2efadd585bdd892da520c7339cfd50fe08e8e68387cba1b8f96f78e
[INFO] running `"docker" "start" "-a" "10ab8b80f2efadd585bdd892da520c7339cfd50fe08e8e68387cba1b8f96f78e"`
[INFO] [stderr]     Checking byte-visualizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]  --> src/main.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 |     use std::time::{Duration, Instant};
[INFO] [stderr]   |                     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]    --> src/image_data/get_image_data.rs:251:13
[INFO] [stderr]     |
[INFO] [stderr] 251 |         use std::fs;
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]  --> src/main.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 |     use std::time::{Duration, Instant};
[INFO] [stderr]   |                     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_image_data`
[INFO] [stderr]   --> src/image_data/get_image_data.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / pub fn get_image_data(
[INFO] [stderr] 2  | |     binary_data: &Vec<u8>,
[INFO] [stderr] 3  | |     width: i32,
[INFO] [stderr] 4  | |     height: i32,
[INFO] [stderr] ...  |
[INFO] [stderr] 68 | |     image_data
[INFO] [stderr] 69 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_blended_pixel`
[INFO] [stderr]   --> src/image_data/pixels.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn get_blended_pixel(bottom: Pixel, top: Pixel) -> Pixel {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_pixel_data`
[INFO] [stderr]   --> src/image_data/sprite.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn set_pixel_data(&mut self, data: Vec<pixels::Pixel>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_image_data`
[INFO] [stderr]   --> src/image_data/get_image_data.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / pub fn get_image_data(
[INFO] [stderr] 2  | |     binary_data: &Vec<u8>,
[INFO] [stderr] 3  | |     width: i32,
[INFO] [stderr] 4  | |     height: i32,
[INFO] [stderr] ...  |
[INFO] [stderr] 68 | |     image_data
[INFO] [stderr] 69 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_blended_pixel`
[INFO] [stderr]   --> src/image_data/pixels.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn get_blended_pixel(bottom: Pixel, top: Pixel) -> Pixel {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "10ab8b80f2efadd585bdd892da520c7339cfd50fe08e8e68387cba1b8f96f78e"`
[INFO] running `"docker" "rm" "-f" "10ab8b80f2efadd585bdd892da520c7339cfd50fe08e8e68387cba1b8f96f78e"`
[INFO] [stdout] 10ab8b80f2efadd585bdd892da520c7339cfd50fe08e8e68387cba1b8f96f78e