[INFO] crate steganer 1.0.1 is already in cache
[INFO] extracting crate steganer 1.0.1 into work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/steganer/1.0.1
[INFO] extracting crate steganer 1.0.1 into work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/steganer/1.0.1
[INFO] validating manifest of steganer-1.0.1 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of steganer-1.0.1 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing steganer-1.0.1
[INFO] finished frobbing steganer-1.0.1
[INFO] frobbed toml for steganer-1.0.1 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/steganer/1.0.1/Cargo.toml
[INFO] started frobbing steganer-1.0.1
[INFO] finished frobbing steganer-1.0.1
[INFO] frobbed toml for steganer-1.0.1 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/steganer/1.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "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" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking steganer-1.0.1 against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-7/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/steganer/1.0.1:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d40c00acbb43fa0358601434e1d0b094b1ab843462657c13b18653ddc7a39f62
[INFO] running `"docker" "start" "-a" "d40c00acbb43fa0358601434e1d0b094b1ab843462657c13b18653ddc7a39f62"`
[INFO] [stderr]     Checking bitreader v0.3.1
[INFO] [stderr]     Checking num-complex v0.2.3
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking test_common v1.0.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking steganer v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]   --> src/fileio.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | use std::path::PathBuf;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]    --> src/fileio.rs:378:27
[INFO] [stderr]     |
[INFO] [stderr] 378 |     use std::io::{Cursor, Read};
[INFO] [stderr]     |                           ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_image`
[INFO] [stderr]    --> src/stegimage.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     fn get_image(&mut self)-> &mut DynamicImage {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]    --> src/stegimage.rs:482:17
[INFO] [stderr]     |
[INFO] [stderr] 482 |         let mut pixel = container.get_image().get_pixel(0,0);
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]    --> src/stegimage.rs:506:17
[INFO] [stderr]     |
[INFO] [stderr] 506 |         let mut pixel = container.get_image().get_pixel(0,0);
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]    --> src/stegimage.rs:548:17
[INFO] [stderr]     |
[INFO] [stderr] 548 |         let mut pixel = container.get_image().get_pixel(0,0);
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pixel` is never read
[INFO] [stderr]    --> src/stegimage.rs:572:17
[INFO] [stderr]     |
[INFO] [stderr] 572 |         let mut pixel = container.get_image().get_pixel(0,0);
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/integration_tests.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 | /     copy_files(files_to_copy, test_folder_path.to_str()
[INFO] [stderr] 60 | |         .expect("Test folder path contains non valid unicode characters that made conversion impossible."));
[INFO] [stderr]    | |____________________________________________________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.53s
[INFO] running `"docker" "inspect" "d40c00acbb43fa0358601434e1d0b094b1ab843462657c13b18653ddc7a39f62"`
[INFO] running `"docker" "rm" "-f" "d40c00acbb43fa0358601434e1d0b094b1ab843462657c13b18653ddc7a39f62"`
[INFO] [stdout] d40c00acbb43fa0358601434e1d0b094b1ab843462657c13b18653ddc7a39f62