[INFO] updating cached repository evuez/ditherer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/evuez/ditherer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/evuez/ditherer" "work/ex/beta-1.38-1/sources/1.37.0/gh/evuez/ditherer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/evuez/ditherer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/evuez/ditherer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/evuez/ditherer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/evuez/ditherer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d9e22194bd77d9fc756678297aeb242f3a19dbe3
[INFO] sha for GitHub repo evuez/ditherer: d9e22194bd77d9fc756678297aeb242f3a19dbe3
[INFO] validating manifest of evuez/ditherer 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 evuez/ditherer 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 evuez/ditherer
[INFO] finished frobbing evuez/ditherer
[INFO] frobbed toml for evuez/ditherer written to work/ex/beta-1.38-1/sources/1.37.0/gh/evuez/ditherer/Cargo.toml
[INFO] started frobbing evuez/ditherer
[INFO] finished frobbing evuez/ditherer
[INFO] frobbed toml for evuez/ditherer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/evuez/ditherer/Cargo.toml
[INFO] crate evuez/ditherer 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/evuez/ditherer/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 evuez/ditherer against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/evuez/ditherer:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8abe5d216dcc27b8e6d72dad14f85a319c3ed2f5d3ba6ec24be779c7ff02b687
[INFO] running `"docker" "start" "-a" "8abe5d216dcc27b8e6d72dad14f85a319c3ed2f5d3ba6ec24be779c7ff02b687"`
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gif v0.10.2
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling png v0.15.0
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling image v0.22.1
[INFO] [stderr]    Compiling ditherer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no method named `dimensions` found for type `image::DynamicImage` in the current scope
[INFO] [stderr]   --> src/main.rs:21:31
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let (width, height) = img.dimensions();
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is in scope
[INFO] [stderr] help: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]    |
[INFO] [stderr] 3  | use image::GenericImageView;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `pixels` found for type `image::DynamicImage` in the current scope
[INFO] [stderr]   --> src/main.rs:26:30
[INFO] [stderr]    |
[INFO] [stderr] 26 |     for (x, y, pixel) in img.pixels() {
[INFO] [stderr]    |                              ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is in scope
[INFO] [stderr] help: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]    |
[INFO] [stderr] 3  | use image::GenericImageView;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GenericImage`
[INFO] [stderr]  --> src/main.rs:5:26
[INFO] [stderr]   |
[INFO] [stderr] 5 | use image::{ImageBuffer, GenericImage, Pixel, Rgb};
[INFO] [stderr]   |                          ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Pixel`
[INFO] [stderr]  --> src/main.rs:5:40
[INFO] [stderr]   |
[INFO] [stderr] 5 | use image::{ImageBuffer, GenericImage, Pixel, Rgb};
[INFO] [stderr]   |                                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `ditherer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8abe5d216dcc27b8e6d72dad14f85a319c3ed2f5d3ba6ec24be779c7ff02b687"`
[INFO] running `"docker" "rm" "-f" "8abe5d216dcc27b8e6d72dad14f85a319c3ed2f5d3ba6ec24be779c7ff02b687"`
[INFO] [stdout] 8abe5d216dcc27b8e6d72dad14f85a319c3ed2f5d3ba6ec24be779c7ff02b687