[INFO] cloning repository https://github.com/Carson-DeSotel/ppm-color-compressor
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Carson-DeSotel/ppm-color-compressor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarson-DeSotel%2Fppm-color-compressor"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarson-DeSotel%2Fppm-color-compressor'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0fb5a333abcb85a1071cce6f5abfef185bc217ed
[INFO] checking Carson-DeSotel/ppm-color-compressor against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarson-DeSotel%2Fppm-color-compressor" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  85% (29/34)   
Checking out files:  88% (30/34)   
Checking out files:  91% (31/34)   
Checking out files:  94% (32/34)   
Checking out files:  97% (33/34)   
Checking out files: 100% (34/34)   
Checking out files: 100% (34/34), done.
[INFO] validating manifest of git repo https://github.com/Carson-DeSotel/ppm-color-compressor on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Carson-DeSotel/ppm-color-compressor
[INFO] finished tweaking git repo https://github.com/Carson-DeSotel/ppm-color-compressor
[INFO] tweaked toml for git repo https://github.com/Carson-DeSotel/ppm-color-compressor written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Carson-DeSotel/ppm-color-compressor already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+74e80468347471779be6060d8d7d6d04e98e467f" "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] 356e8cad8e08aea77858a7dcf304ffb95a61fd19a353279948ee6aea18555687
[INFO] running `"docker" "start" "-a" "356e8cad8e08aea77858a7dcf304ffb95a61fd19a353279948ee6aea18555687"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking ppm-color-compressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: struct is never constructed: `Image`
[INFO] [stderr]   --> src/image_io.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub struct Image {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/image_io.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn new() -> Image {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `element_at`
[INFO] [stderr]   --> src/image_io.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn element_at(self, x: i32, y: i32) -> Pixel {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_ppm`
[INFO] [stderr]   --> src/image_io.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn read_ppm(path: &Path) -> io::Result<Image>{
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `save_ppm`
[INFO] [stderr]    --> src/image_io.rs:131:8
[INFO] [stderr]     |
[INFO] [stderr] 131 | pub fn save_ppm(image: Image, path: &Path) -> io::Result<()> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "356e8cad8e08aea77858a7dcf304ffb95a61fd19a353279948ee6aea18555687"`
[INFO] running `"docker" "rm" "-f" "356e8cad8e08aea77858a7dcf304ffb95a61fd19a353279948ee6aea18555687"`
[INFO] [stdout] 356e8cad8e08aea77858a7dcf304ffb95a61fd19a353279948ee6aea18555687