[INFO] cloning repository https://github.com/daveclinton/steganography
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daveclinton/steganography" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaveclinton%2Fsteganography", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaveclinton%2Fsteganography'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 002776244e91f1217d2a15ac5480603d63ac38b2
[INFO] checking daveclinton/steganography against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaveclinton%2Fsteganography" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/daveclinton/steganography
[INFO] finished tweaking git repo https://github.com/daveclinton/steganography
[INFO] tweaked toml for git repo https://github.com/daveclinton/steganography written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/daveclinton/steganography on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/daveclinton/steganography already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a4f84dc4549f51a22507fe274d47af9b4493794d2b8456964cce0e314247eef
[INFO] running `Command { std: "docker" "start" "-a" "4a4f84dc4549f51a22507fe274d47af9b4493794d2b8456964cce0e314247eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a4f84dc4549f51a22507fe274d47af9b4493794d2b8456964cce0e314247eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a4f84dc4549f51a22507fe274d47af9b4493794d2b8456964cce0e314247eef", kill_on_drop: false }`
[INFO] [stdout] 4a4f84dc4549f51a22507fe274d47af9b4493794d2b8456964cce0e314247eef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e98bf90ce99b65bf41187db83628f17f313129097895b18bc640521c3213ba73
[INFO] running `Command { std: "docker" "start" "-a" "e98bf90ce99b65bf41187db83628f17f313129097895b18bc640521c3213ba73", kill_on_drop: false }`
[INFO] [stderr]     Checking steganography v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `clap`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{Parser, Subcommand};
[INFO] [stdout]   |     ^^^^ use of unresolved module or unlinked crate `clap`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `clap`, use `cargo add clap` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `clap`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{Parser, Subcommand};
[INFO] [stdout]   |     ^^^^ use of unresolved module or unlinked crate `clap`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `clap`, use `cargo add clap` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `png`
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | use png::{BitDepth, ColorType, Encoder, HasParameters};
[INFO] [stdout]    |     ^^^ use of unresolved module or unlinked crate `png`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `png`, use `cargo add png` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `png`
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | use png::{BitDepth, ColorType, Encoder, HasParameters};
[INFO] [stdout]    |     ^^^ use of unresolved module or unlinked crate `png`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `png`, use `cargo add png` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `command` in this scope
[INFO] [stdout]  --> src/main.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[command(author, version, about, lang_about = None)]
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `command` in this scope
[INFO] [stdout]  --> src/main.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[command(author, version, about, lang_about = None)]
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `command` in this scope
[INFO] [stdout]  --> src/main.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[command(subcommand)]
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `command` in this scope
[INFO] [stdout]  --> src/main.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[command(subcommand)]
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `png`
[INFO] [stdout]   --> src/main.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut decoder = png::Decoder::new(File::open(input_path)?);
[INFO] [stdout]    |                       ^^^ use of unresolved module or unlinked crate `png`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `png`, use `cargo add png` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File`
[INFO] [stdout]   --> src/main.rs:62:41
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut decoder = png::Decoder::new(File::open(input_path)?);
[INFO] [stdout]    |                                         ^^^^ use of undeclared type `File`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::fs::File;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `png`
[INFO] [stdout]   --> src/main.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut decoder = png::Decoder::new(File::open(input_path)?);
[INFO] [stdout]    |                       ^^^ use of unresolved module or unlinked crate `png`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `png`, use `cargo add png` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File`
[INFO] [stdout]   --> src/main.rs:62:41
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut decoder = png::Decoder::new(File::open(input_path)?);
[INFO] [stdout]    |                                         ^^^^ use of undeclared type `File`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::fs::File;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `parse` found for struct `Cli` in the current scope
[INFO] [stdout]   --> src/main.rs:32:20
[INFO] [stdout]    |
[INFO] [stdout]  7 | struct Cli {
[INFO] [stdout]    | ---------- function or associated item `parse` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 32 |     let cli = Cli::parse();
[INFO] [stdout]    |                    ^^^^^ function or associated item not found in `Cli`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `parse` found for struct `Cli` in the current scope
[INFO] [stdout]   --> src/main.rs:32:20
[INFO] [stdout]    |
[INFO] [stdout]  7 | struct Cli {
[INFO] [stdout]    | ---------- function or associated item `parse` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 32 |     let cli = Cli::parse();
[INFO] [stdout]    |                    ^^^^^ function or associated item not found in `Cli`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:61:6
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn encode_message(
[INFO] [stdout]    |    -------------- implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] ...
[INFO] [stdout] 61 | ) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<(), Box<dyn Error>>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<(), Box<(dyn std::error::Error + 'static)>>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:61:6
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn encode_message(
[INFO] [stdout]    |    -------------- implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] ...
[INFO] [stdout] 61 | ) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<(), Box<dyn Error>>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<(), Box<(dyn std::error::Error + 'static)>>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `steganography` (bin "steganography") due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `steganography` (bin "steganography" test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "e98bf90ce99b65bf41187db83628f17f313129097895b18bc640521c3213ba73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e98bf90ce99b65bf41187db83628f17f313129097895b18bc640521c3213ba73", kill_on_drop: false }`
[INFO] [stdout] e98bf90ce99b65bf41187db83628f17f313129097895b18bc640521c3213ba73
