[INFO] updating cached repository arthurmco/oxImage
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arthurmco/oxImage
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arthurmco/oxImage" "work/ex/beta-1.38-1/sources/1.37.0/gh/arthurmco/oxImage"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/arthurmco/oxImage'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arthurmco/oxImage" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arthurmco/oxImage"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arthurmco/oxImage'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c67a063eae4693828e70aa564d8b3bc52bc08853
[INFO] sha for GitHub repo arthurmco/oxImage: c67a063eae4693828e70aa564d8b3bc52bc08853
[INFO] validating manifest of arthurmco/oxImage 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 arthurmco/oxImage 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 arthurmco/oxImage
[INFO] finished frobbing arthurmco/oxImage
[INFO] frobbed toml for arthurmco/oxImage written to work/ex/beta-1.38-1/sources/1.37.0/gh/arthurmco/oxImage/Cargo.toml
[INFO] started frobbing arthurmco/oxImage
[INFO] finished frobbing arthurmco/oxImage
[INFO] frobbed toml for arthurmco/oxImage written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arthurmco/oxImage/Cargo.toml
[INFO] crate arthurmco/oxImage 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]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing arthurmco/oxImage 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-0/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/arthurmco/oxImage:/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] a95fb30d53ad0ba04d296519aeabba6ab6fc98545d1102da1887bcec4e9c5588
[INFO] running `"docker" "start" "-a" "a95fb30d53ad0ba04d296519aeabba6ab6fc98545d1102da1887bcec4e9c5588"`
[INFO] [stderr]    Compiling deflate v0.7.16
[INFO] [stderr]    Compiling png v0.9.0
[INFO] [stderr]    Compiling image v0.15.0
[INFO] [stderr]    Compiling oximage v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/picture/imagecollection.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Image`
[INFO] [stderr]  --> src/picture/imagecollection.rs:4:58
[INFO] [stderr]   |
[INFO] [stderr] 4 | use super::{ImageCollectionElement, ImageCollectionItem, Image};
[INFO] [stderr]   |                                                          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `oldname`
[INFO] [stderr]   --> src/picture/imagecollection.rs:62:35
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
[INFO] [stderr]    |                                      ^^^^^^^ help: consider prefixing with an underscore: `_oldname`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `newname`
[INFO] [stderr]   --> src/picture/imagecollection.rs:62:50
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
[INFO] [stderr]    |                                                     ^^^^^^^ help: consider prefixing with an underscore: `_newname`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `data`
[INFO] [stderr]   --> src/picture/pimage.rs:12:2
[INFO] [stderr]    |
[INFO] [stderr] 12 |     data: ImageData,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_empty`
[INFO] [stderr]   --> src/picture/pimage.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn create_empty(name: &str, width: u32, height: u32) -> Image {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_pixel`
[INFO] [stderr]   --> src/picture/pimage.rs:34:2
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn get_pixel(&self, x: u32, y: u32) -> u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `resize_area`
[INFO] [stderr]   --> src/picture/pimage.rs:38:2
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn resize_area(&mut self, nwidth: u32, nheight: u32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `d`
[INFO] [stderr]   --> src/picture/imagecollection.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     d: &'a ImageCollectionList,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_element`
[INFO] [stderr]   --> src/picture/imagecollection.rs:58:2
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn get_element(&self, filename: &str) -> Option<&ImageCollectionItem> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rename_element`
[INFO] [stderr]   --> src/picture/imagecollection.rs:62:2
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove_element`
[INFO] [stderr]   --> src/picture/imagecollection.rs:66:2
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn remove_element(&mut self, filename: &str) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ImageList`
[INFO] [stderr]   --> src/picture/collectionitem.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |     ImageList(ImageCollectionList),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `filename`
[INFO] [stderr]   --> src/picture/imagefile.rs:12:2
[INFO] [stderr]    |
[INFO] [stderr] 12 |     filename: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_empty`
[INFO] [stderr]   --> src/picture/imagedata.rs:17:2
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn create_empty(size: usize) -> ImageData {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_data`
[INFO] [stderr]   --> src/picture/imagedata.rs:38:2
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn set_data(&mut self, data: &[u32]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.50s
[INFO] running `"docker" "inspect" "a95fb30d53ad0ba04d296519aeabba6ab6fc98545d1102da1887bcec4e9c5588"`
[INFO] running `"docker" "rm" "-f" "a95fb30d53ad0ba04d296519aeabba6ab6fc98545d1102da1887bcec4e9c5588"`
[INFO] [stdout] a95fb30d53ad0ba04d296519aeabba6ab6fc98545d1102da1887bcec4e9c5588
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/arthurmco/oxImage:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6b2ff7272e31571c7d84745a5e4ac237c2a551a2a88a3f26ca298378b5490b64
[INFO] running `"docker" "start" "-a" "6b2ff7272e31571c7d84745a5e4ac237c2a551a2a88a3f26ca298378b5490b64"`
[INFO] [stderr]    Compiling oximage v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/picture/imagecollection.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `oldname`
[INFO] [stderr]   --> src/picture/imagecollection.rs:62:35
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
[INFO] [stderr]    |                                      ^^^^^^^ help: consider prefixing with an underscore: `_oldname`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `newname`
[INFO] [stderr]   --> src/picture/imagecollection.rs:62:50
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
[INFO] [stderr]    |                                                     ^^^^^^^ help: consider prefixing with an underscore: `_newname`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/picture/imagecollection.rs:154:7
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let mut it = ic.iterator();
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `d`
[INFO] [stderr]   --> src/picture/imagecollection.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     d: &'a ImageCollectionList,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rename_element`
[INFO] [stderr]   --> src/picture/imagecollection.rs:62:2
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ImageList`
[INFO] [stderr]   --> src/picture/collectionitem.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |     ImageList(ImageCollectionList),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `filename`
[INFO] [stderr]   --> src/picture/imagefile.rs:12:2
[INFO] [stderr]    |
[INFO] [stderr] 12 |     filename: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.87s
[INFO] running `"docker" "inspect" "6b2ff7272e31571c7d84745a5e4ac237c2a551a2a88a3f26ca298378b5490b64"`
[INFO] running `"docker" "rm" "-f" "6b2ff7272e31571c7d84745a5e4ac237c2a551a2a88a3f26ca298378b5490b64"`
[INFO] [stdout] 6b2ff7272e31571c7d84745a5e4ac237c2a551a2a88a3f26ca298378b5490b64
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/arthurmco/oxImage:/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" "test" "--frozen"`
[INFO] [stdout] 54c8558624f028d13dc7e0cf484135aed17d98964e567d928f6b17ab7ba6e374
[INFO] running `"docker" "start" "-a" "54c8558624f028d13dc7e0cf484135aed17d98964e567d928f6b17ab7ba6e374"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/oximage-36e4533a3915e5b0
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test picture::imagedata::tests::test_imagedata_set ... ok
[INFO] [stdout] test picture::imagecollection::tests::test_image_collection_item_add ... ok
[INFO] [stdout] test picture::imagecollection::tests::test_image_collection_remove ... ok
[INFO] [stdout] test picture::imagedata::tests::test_imagedata_with_data ... ok
[INFO] [stdout] test picture::imagedata::tests::test_pack_pixel ... ok
[INFO] [stdout] test picture::imagedata::tests::test_imagedata_with_default_data ... ok
[INFO] [stdout] test picture::imagecollection::tests::test_image_collection_iterate ... ok
[INFO] [stdout] test picture::imagecollection::tests::test_image_collection_item_get ... ok
[INFO] [stdout] test picture::pimage::tests::test_resize_area ... ok
[INFO] [stdout] test picture::pimage::tests::test_parameters ... ok
[INFO] [stdout] test picture::imagefile::tests::open_image_all_black ... ok
[INFO] [stdout] test picture::imagefile::tests::open_image_all_red ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "54c8558624f028d13dc7e0cf484135aed17d98964e567d928f6b17ab7ba6e374"`
[INFO] running `"docker" "rm" "-f" "54c8558624f028d13dc7e0cf484135aed17d98964e567d928f6b17ab7ba6e374"`
[INFO] [stdout] 54c8558624f028d13dc7e0cf484135aed17d98964e567d928f6b17ab7ba6e374