[INFO] cloning repository https://github.com/dante-signal31/steganer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dante-signal31/steganer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdante-signal31%2Fsteganer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdante-signal31%2Fsteganer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f868b1084cf73c56a640ebb3d034cc75e36e1de
[INFO] checking dante-signal31/steganer against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdante-signal31%2Fsteganer" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dante-signal31/steganer on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dante-signal31/steganer
[INFO] finished tweaking git repo https://github.com/dante-signal31/steganer
[INFO] tweaked toml for git repo https://github.com/dante-signal31/steganer written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/dante-signal31/steganer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87065d3d7dca46a4fd5d67603fd1e2122d78730d6df248ce9b4170b5745e0b1f
[INFO] running `Command { std: "docker" "start" "-a" "87065d3d7dca46a4fd5d67603fd1e2122d78730d6df248ce9b4170b5745e0b1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87065d3d7dca46a4fd5d67603fd1e2122d78730d6df248ce9b4170b5745e0b1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87065d3d7dca46a4fd5d67603fd1e2122d78730d6df248ce9b4170b5745e0b1f", kill_on_drop: false }`
[INFO] [stdout] 87065d3d7dca46a4fd5d67603fd1e2122d78730d6df248ce9b4170b5745e0b1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22b65043a4c63afb14148ea3b04e023c214aba2f338070c532768860943940e6
[INFO] running `Command { std: "docker" "start" "-a" "22b65043a4c63afb14148ea3b04e023c214aba2f338070c532768860943940e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling syn v0.15.37
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitreader v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking arrayvec v0.4.10
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]     Checking num-complex v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_pcg v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking png v0.14.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking tempfile v3.0.8
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling ghost v0.1.0
[INFO] [stderr]    Compiling ctor v0.1.9
[INFO] [stderr]     Checking test_common v1.0.1
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.10
[INFO] [stderr]    Compiling inventory-impl v0.1.4
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]    Compiling pyo3cls v0.8.1
[INFO] [stderr]     Checking inventory v0.1.4
[INFO] [stderr]    Compiling paste-impl v0.1.6
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking paste v0.1.6
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling pyo3 v0.8.1
[INFO] [stderr]     Checking steganer v1.1.0-post4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]   --> src/fileio.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | use std::path::PathBuf;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]    --> src/fileio.rs:378:27
[INFO] [stdout]     |
[INFO] [stdout] 378 |     use std::io::{Cursor, Read};
[INFO] [stdout]     |                           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/fileio.rs:446:39
[INFO] [stdout]     |
[INFO] [stdout] 446 |     fn test_iterator_next_under_8() { ;
[INFO] [stdout]     |                                       ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_image`
[INFO] [stdout]    --> src/stegimage.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 272 |     fn get_image(&mut self)-> &mut DynamicImage {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/stegimage.rs:374:47
[INFO] [stdout]     |
[INFO] [stdout] 374 |                     let message: &str = error.description();
[INFO] [stdout]     |                                               ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pixel` is never read
[INFO] [stdout]    --> src/stegimage.rs:482:17
[INFO] [stdout]     |
[INFO] [stdout] 482 |         let mut pixel = container.get_image().get_pixel(0,0);
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pixel` is never read
[INFO] [stdout]    --> src/stegimage.rs:506:17
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut pixel = container.get_image().get_pixel(0,0);
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pixel` is never read
[INFO] [stdout]    --> src/stegimage.rs:548:17
[INFO] [stdout]     |
[INFO] [stdout] 548 |         let mut pixel = container.get_image().get_pixel(0,0);
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pixel` is never read
[INFO] [stdout]    --> src/stegimage.rs:572:17
[INFO] [stdout]     |
[INFO] [stdout] 572 |         let mut pixel = container.get_image().get_pixel(0,0);
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/integration_tests.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     copy_files(files_to_copy, test_folder_path.to_str()
[INFO] [stdout] 60 | |         .expect("Test folder path contains non valid unicode characters that made conversion impossible."));
[INFO] [stdout]    | |____________________________________________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.16s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "22b65043a4c63afb14148ea3b04e023c214aba2f338070c532768860943940e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22b65043a4c63afb14148ea3b04e023c214aba2f338070c532768860943940e6", kill_on_drop: false }`
[INFO] [stdout] 22b65043a4c63afb14148ea3b04e023c214aba2f338070c532768860943940e6