Dec 19 20:19:56.253 INFO checking arthurmco/oxImage against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 20:19:56.253 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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=forbid" "-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:19:56.546 INFO [stdout] a677f27e4a11f1c19c58c7ad2f2eac69917e5f380631c42120eb2edfd7fe794b
Dec 19 20:19:56.546 INFO running `"docker" "start" "-a" "a677f27e4a11f1c19c58c7ad2f2eac69917e5f380631c42120eb2edfd7fe794b"`
Dec 19 20:19:57.684 INFO [stderr]     Checking image v0.15.0
Dec 19 20:20:01.140 INFO [stderr]     Checking oximage v0.1.0 (/opt/crater/workdir)
Dec 19 20:20:01.490 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 19 20:20:01.490 INFO [stderr]  --> src/picture/imagecollection.rs:1:5
Dec 19 20:20:01.490 INFO [stderr]   |
Dec 19 20:20:01.490 INFO [stderr] 1 | use std::cell::RefCell;
Dec 19 20:20:01.490 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.491 INFO [stderr]   |
Dec 19 20:20:01.491 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 20:20:01.491 INFO [stderr] 
Dec 19 20:20:01.491 INFO [stderr] warning: unused import: `Image`
Dec 19 20:20:01.491 INFO [stderr]  --> src/picture/imagecollection.rs:4:58
Dec 19 20:20:01.491 INFO [stderr]   |
Dec 19 20:20:01.491 INFO [stderr] 4 | use super::{ImageCollectionElement, ImageCollectionItem, Image};
Dec 19 20:20:01.491 INFO [stderr]   |                                                          ^^^^^
Dec 19 20:20:01.491 INFO [stderr] 
Dec 19 20:20:01.529 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 19 20:20:01.529 INFO [stderr]  --> src/picture/imagecollection.rs:1:5
Dec 19 20:20:01.529 INFO [stderr]   |
Dec 19 20:20:01.529 INFO [stderr] 1 | use std::cell::RefCell;
Dec 19 20:20:01.529 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.529 INFO [stderr]   |
Dec 19 20:20:01.529 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 20:20:01.529 INFO [stderr] 
Dec 19 20:20:01.598 INFO [stderr] warning: unused variable: `oldname`
Dec 19 20:20:01.598 INFO [stderr]   --> src/picture/imagecollection.rs:62:35
Dec 19 20:20:01.598 INFO [stderr]    |
Dec 19 20:20:01.598 INFO [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
Dec 19 20:20:01.598 INFO [stderr]    |                                      ^^^^^^^ help: consider using `_oldname` instead
Dec 19 20:20:01.598 INFO [stderr]    |
Dec 19 20:20:01.598 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 20:20:01.598 INFO [stderr] 
Dec 19 20:20:01.598 INFO [stderr] warning: unused variable: `newname`
Dec 19 20:20:01.598 INFO [stderr]   --> src/picture/imagecollection.rs:62:50
Dec 19 20:20:01.598 INFO [stderr]    |
Dec 19 20:20:01.598 INFO [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
Dec 19 20:20:01.598 INFO [stderr]    |                                                     ^^^^^^^ help: consider using `_newname` instead
Dec 19 20:20:01.598 INFO [stderr] 
Dec 19 20:20:01.630 INFO [stderr] warning: field is never used: `data`
Dec 19 20:20:01.630 INFO [stderr]   --> src/picture/pimage.rs:12:2
Dec 19 20:20:01.630 INFO [stderr]    |
Dec 19 20:20:01.630 INFO [stderr] 12 |     data: ImageData,
Dec 19 20:20:01.630 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 19 20:20:01.630 INFO [stderr]    |
Dec 19 20:20:01.630 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 20:20:01.630 INFO [stderr] 
Dec 19 20:20:01.630 INFO [stderr] warning: method is never used: `create_empty`
Dec 19 20:20:01.630 INFO [stderr]   --> src/picture/pimage.rs:21:2
Dec 19 20:20:01.630 INFO [stderr]    |
Dec 19 20:20:01.630 INFO [stderr] 21 |     pub fn create_empty(name: &str, width: u32, height: u32) -> Image {
Dec 19 20:20:01.630 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.630 INFO [stderr] 
Dec 19 20:20:01.630 INFO [stderr] warning: method is never used: `get_pixel`
Dec 19 20:20:01.630 INFO [stderr]   --> src/picture/pimage.rs:34:2
Dec 19 20:20:01.630 INFO [stderr]    |
Dec 19 20:20:01.630 INFO [stderr] 34 |     pub fn get_pixel(&self, x: u32, y: u32) -> u32 {
Dec 19 20:20:01.630 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.630 INFO [stderr] 
Dec 19 20:20:01.630 INFO [stderr] warning: method is never used: `resize_area`
Dec 19 20:20:01.630 INFO [stderr]   --> src/picture/pimage.rs:38:2
Dec 19 20:20:01.630 INFO [stderr]    |
Dec 19 20:20:01.630 INFO [stderr] 38 |     pub fn resize_area(&mut self, nwidth: u32, nheight: u32) {
Dec 19 20:20:01.630 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.630 INFO [stderr] 
Dec 19 20:20:01.630 INFO [stderr] warning: field is never used: `d`
Dec 19 20:20:01.630 INFO [stderr]   --> src/picture/imagecollection.rs:21:2
Dec 19 20:20:01.630 INFO [stderr]    |
Dec 19 20:20:01.630 INFO [stderr] 21 |     d: &'a ImageCollectionList,
Dec 19 20:20:01.630 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.631 INFO [stderr] 
Dec 19 20:20:01.631 INFO [stderr] warning: method is never used: `get_element`
Dec 19 20:20:01.631 INFO [stderr]   --> src/picture/imagecollection.rs:58:2
Dec 19 20:20:01.631 INFO [stderr]    |
Dec 19 20:20:01.631 INFO [stderr] 58 |     pub fn get_element(&self, filename: &str) -> Option<&ImageCollectionItem> {
Dec 19 20:20:01.631 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.631 INFO [stderr] 
Dec 19 20:20:01.631 INFO [stderr] warning: method is never used: `rename_element`
Dec 19 20:20:01.631 INFO [stderr]   --> src/picture/imagecollection.rs:62:2
Dec 19 20:20:01.631 INFO [stderr]    |
Dec 19 20:20:01.631 INFO [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
Dec 19 20:20:01.631 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.631 INFO [stderr] 
Dec 19 20:20:01.631 INFO [stderr] warning: method is never used: `remove_element`
Dec 19 20:20:01.631 INFO [stderr]   --> src/picture/imagecollection.rs:66:2
Dec 19 20:20:01.631 INFO [stderr]    |
Dec 19 20:20:01.631 INFO [stderr] 66 |     pub fn remove_element(&mut self, filename: &str) {
Dec 19 20:20:01.631 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.631 INFO [stderr] 
Dec 19 20:20:01.631 INFO [stderr] warning: variant is never constructed: `ImageList`
Dec 19 20:20:01.631 INFO [stderr]   --> src/picture/collectionitem.rs:10:2
Dec 19 20:20:01.660 INFO [stderr]    |
Dec 19 20:20:01.660 INFO [stderr] 10 |     ImageList(ImageCollectionList),
Dec 19 20:20:01.660 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.660 INFO [stderr] 
Dec 19 20:20:01.660 INFO [stderr] warning: field is never used: `filename`
Dec 19 20:20:01.660 INFO [stderr]   --> src/picture/imagefile.rs:12:2
Dec 19 20:20:01.660 INFO [stderr]    |
Dec 19 20:20:01.660 INFO [stderr] 12 |     filename: String,
Dec 19 20:20:01.660 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 20:20:01.660 INFO [stderr] 
Dec 19 20:20:01.660 INFO [stderr] warning: method is never used: `create_empty`
Dec 19 20:20:01.660 INFO [stderr]   --> src/picture/imagedata.rs:17:2
Dec 19 20:20:01.660 INFO [stderr]    |
Dec 19 20:20:01.660 INFO [stderr] 17 |     pub fn create_empty(size: usize) -> ImageData {
Dec 19 20:20:01.660 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.660 INFO [stderr] 
Dec 19 20:20:01.660 INFO [stderr] warning: method is never used: `set_data`
Dec 19 20:20:01.660 INFO [stderr]   --> src/picture/imagedata.rs:38:2
Dec 19 20:20:01.660 INFO [stderr]    |
Dec 19 20:20:01.660 INFO [stderr] 38 |     pub fn set_data(&mut self, data: &[u32]) {
Dec 19 20:20:01.660 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.660 INFO [stderr] 
Dec 19 20:20:01.727 INFO [stderr] warning: unused variable: `oldname`
Dec 19 20:20:01.727 INFO [stderr]   --> src/picture/imagecollection.rs:62:35
Dec 19 20:20:01.727 INFO [stderr]    |
Dec 19 20:20:01.727 INFO [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
Dec 19 20:20:01.727 INFO [stderr]    |                                      ^^^^^^^ help: consider using `_oldname` instead
Dec 19 20:20:01.727 INFO [stderr]    |
Dec 19 20:20:01.727 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 20:20:01.727 INFO [stderr] 
Dec 19 20:20:01.727 INFO [stderr] warning: unused variable: `newname`
Dec 19 20:20:01.727 INFO [stderr]   --> src/picture/imagecollection.rs:62:50
Dec 19 20:20:01.727 INFO [stderr]    |
Dec 19 20:20:01.727 INFO [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
Dec 19 20:20:01.727 INFO [stderr]    |                                                     ^^^^^^^ help: consider using `_newname` instead
Dec 19 20:20:01.727 INFO [stderr] 
Dec 19 20:20:01.789 INFO [stderr] warning: variable does not need to be mutable
Dec 19 20:20:01.789 INFO [stderr]    --> src/picture/imagecollection.rs:154:7
Dec 19 20:20:01.789 INFO [stderr]     |
Dec 19 20:20:01.789 INFO [stderr] 154 |         let mut it = ic.iterator();
Dec 19 20:20:01.789 INFO [stderr]     |             ----^^
Dec 19 20:20:01.789 INFO [stderr]     |             |
Dec 19 20:20:01.789 INFO [stderr]     |             help: remove this `mut`
Dec 19 20:20:01.790 INFO [stderr]     |
Dec 19 20:20:01.790 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 20:20:01.790 INFO [stderr] 
Dec 19 20:20:01.827 INFO [stderr] warning: field is never used: `d`
Dec 19 20:20:01.827 INFO [stderr]   --> src/picture/imagecollection.rs:21:2
Dec 19 20:20:01.827 INFO [stderr]    |
Dec 19 20:20:01.827 INFO [stderr] 21 |     d: &'a ImageCollectionList,
Dec 19 20:20:01.827 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.827 INFO [stderr]    |
Dec 19 20:20:01.827 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 20:20:01.827 INFO [stderr] 
Dec 19 20:20:01.827 INFO [stderr] warning: method is never used: `rename_element`
Dec 19 20:20:01.827 INFO [stderr]   --> src/picture/imagecollection.rs:62:2
Dec 19 20:20:01.827 INFO [stderr]    |
Dec 19 20:20:01.827 INFO [stderr] 62 |     pub fn rename_element(&mut self, oldname: &str, newname: &str) {
Dec 19 20:20:01.827 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.827 INFO [stderr] 
Dec 19 20:20:01.827 INFO [stderr] warning: variant is never constructed: `ImageList`
Dec 19 20:20:01.827 INFO [stderr]   --> src/picture/collectionitem.rs:10:2
Dec 19 20:20:01.827 INFO [stderr]    |
Dec 19 20:20:01.827 INFO [stderr] 10 |     ImageList(ImageCollectionList),
Dec 19 20:20:01.827 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:20:01.827 INFO [stderr] 
Dec 19 20:20:01.827 INFO [stderr] warning: field is never used: `filename`
Dec 19 20:20:01.827 INFO [stderr]   --> src/picture/imagefile.rs:12:2
Dec 19 20:20:01.827 INFO [stderr]    |
Dec 19 20:20:01.827 INFO [stderr] 12 |     filename: String,
Dec 19 20:20:01.827 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 20:20:01.827 INFO [stderr] 
Dec 19 20:20:01.858 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.23s
Dec 19 20:20:02.133 INFO running `"docker" "inspect" "a677f27e4a11f1c19c58c7ad2f2eac69917e5f380631c42120eb2edfd7fe794b"`
Dec 19 20:20:02.324 INFO running `"docker" "rm" "-f" "a677f27e4a11f1c19c58c7ad2f2eac69917e5f380631c42120eb2edfd7fe794b"`
Dec 19 20:20:02.457 INFO [stdout] a677f27e4a11f1c19c58c7ad2f2eac69917e5f380631c42120eb2edfd7fe794b