[INFO] updating cached repository HazardDev/image-to-gif-effects
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/HazardDev/image-to-gif-effects
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/HazardDev/image-to-gif-effects" "work/ex/beta-1.38-1/sources/1.37.0/gh/HazardDev/image-to-gif-effects"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/HazardDev/image-to-gif-effects'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HazardDev/image-to-gif-effects" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/HazardDev/image-to-gif-effects"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/HazardDev/image-to-gif-effects'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 341f70125a9ef29356e9f4214fc1fce378e6ff94
[INFO] sha for GitHub repo HazardDev/image-to-gif-effects: 341f70125a9ef29356e9f4214fc1fce378e6ff94
[INFO] validating manifest of HazardDev/image-to-gif-effects on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of HazardDev/image-to-gif-effects on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing HazardDev/image-to-gif-effects
[INFO] finished frobbing HazardDev/image-to-gif-effects
[INFO] frobbed toml for HazardDev/image-to-gif-effects written to work/ex/beta-1.38-1/sources/1.37.0/gh/HazardDev/image-to-gif-effects/Cargo.toml
[INFO] started frobbing HazardDev/image-to-gif-effects
[INFO] finished frobbing HazardDev/image-to-gif-effects
[INFO] frobbed toml for HazardDev/image-to-gif-effects written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/HazardDev/image-to-gif-effects/Cargo.toml
[INFO] crate HazardDev/image-to-gif-effects already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing HazardDev/image-to-gif-effects against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/HazardDev/image-to-gif-effects:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a61569018476abc0414ad241f01f76ccd4dee0cb1515367328a452ebe79dfc96
[INFO] running `"docker" "start" "-a" "a61569018476abc0414ad241f01f76ccd4dee0cb1515367328a452ebe79dfc96"`
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling clap v2.29.0
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling image v0.18.0
[INFO] [stderr]    Compiling image-to-gif-effects v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::borrow::Cow`
[INFO] [stderr]   --> src/animations.rs:10:6
[INFO] [stderr]    |
[INFO] [stderr] 10 |     use std::borrow::Cow;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DynamicImage`, `FilterType`, `Frame`, `Frames`, `GenericImage`
[INFO] [stderr]    --> src/animations.rs:106:14
[INFO] [stderr]     |
[INFO] [stderr] 106 |     use image::{GenericImage, DynamicImage, Frame, Frames, FilterType};    
[INFO] [stderr]     |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^  ^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0282]: type annotations needed
[INFO] [stderr]   --> src/animations.rs:81:7
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let mut buffer;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             cannot infer type
[INFO] [stderr]    |             consider giving `buffer` a type
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0282`.
[INFO] [stderr] error: Could not compile `image-to-gif-effects`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a61569018476abc0414ad241f01f76ccd4dee0cb1515367328a452ebe79dfc96"`
[INFO] running `"docker" "rm" "-f" "a61569018476abc0414ad241f01f76ccd4dee0cb1515367328a452ebe79dfc96"`
[INFO] [stdout] a61569018476abc0414ad241f01f76ccd4dee0cb1515367328a452ebe79dfc96