[INFO] crate steganer 1.0.4 is already in cache
[INFO] checking steganer-1.0.4 against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] extracting crate steganer 1.0.4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate steganer 1.0.4 on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate steganer 1.0.4
[INFO] finished tweaking crates.io crate steganer 1.0.4
[INFO] tweaked toml for crates.io crate steganer 1.0.4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate steganer 1.0.4 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 47873d0ca4a500318bbf627ec6c330b7cb532a888cc79dd90b4725b86e7daed2
[INFO] running `"docker" "start" "-a" "47873d0ca4a500318bbf627ec6c330b7cb532a888cc79dd90b4725b86e7daed2"`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling cbindgen v0.8.7
[INFO] [stderr]     Checking bitreader v0.3.1
[INFO] [stderr]     Checking target_info v0.1.0
[INFO] [stderr]     Checking platforms v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.6.10
[INFO] [stderr]     Checking miniz_oxide v0.3.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking rpassword v3.0.2
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]     Checking libflate v0.1.25
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking miniz_oxide_c_api v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking num-complex v0.2.3
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking zip v0.5.2
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking webpki v0.19.1
[INFO] [stderr]     Checking sct v0.5.0
[INFO] [stderr]     Checking test_common v1.0.1
[INFO] [stderr]     Checking webpki-roots v0.16.0
[INFO] [stderr]     Checking rustls v0.15.2
[INFO] [stderr]     Checking ct-logs v0.5.1
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking pretty_env_logger v0.3.0
[INFO] [stderr]    Compiling pyo3 v0.7.0
[INFO] [stderr]     Checking tokio-rustls v0.9.3
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling pyo3-derive-backend v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling ctor v0.1.9
[INFO] [stderr]    Compiling inventory-impl v0.1.3
[INFO] [stderr]    Compiling ghost v0.1.0
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling pyo3cls v0.7.0
[INFO] [stderr]     Checking inventory v0.1.3
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
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[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking cargo_metadata v0.8.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking goblin v0.0.22
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.21.2
[INFO] [stderr]     Checking hyper-rustls v0.16.1
[INFO] [stderr]     Checking reqwest v0.9.19
[INFO] [stderr]     Checking steganer v1.0.4 (/opt/rustwide/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: 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]     Checking pyo3-pack v0.6.1
[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] 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: unnecessary trailing semicolon
[INFO] [stderr]    --> src/fileio.rs:446:39
[INFO] [stderr]     |
[INFO] [stderr] 446 |     fn test_iterator_next_under_8() { ;
[INFO] [stderr]     |                                       ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` 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]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `"docker" "inspect" "47873d0ca4a500318bbf627ec6c330b7cb532a888cc79dd90b4725b86e7daed2"`
[INFO] running `"docker" "rm" "-f" "47873d0ca4a500318bbf627ec6c330b7cb532a888cc79dd90b4725b86e7daed2"`
[INFO] [stdout] 47873d0ca4a500318bbf627ec6c330b7cb532a888cc79dd90b4725b86e7daed2