[INFO] fetching crate pngchat 1.0.1...
[INFO] checking pngchat-1.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pngchat 1.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate pngchat 1.0.1
[INFO] finished tweaking crates.io crate pngchat 1.0.1
[INFO] tweaked toml for crates.io crate pngchat 1.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pngchat 1.0.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pngchat 1.0.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b59da64367b0f529b3c97b74ac4adc8f6ffe629618f11df1353c8023434a633
[INFO] running `Command { std: "docker" "start" "-a" "7b59da64367b0f529b3c97b74ac4adc8f6ffe629618f11df1353c8023434a633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b59da64367b0f529b3c97b74ac4adc8f6ffe629618f11df1353c8023434a633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b59da64367b0f529b3c97b74ac4adc8f6ffe629618f11df1353c8023434a633", kill_on_drop: false }`
[INFO] [stdout] 7b59da64367b0f529b3c97b74ac4adc8f6ffe629618f11df1353c8023434a633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a25ac64ee3d6b1826012c5611db00980facafee6210ad7a63d50879313e0200
[INFO] running `Command { std: "docker" "start" "-a" "4a25ac64ee3d6b1826012c5611db00980facafee6210ad7a63d50879313e0200", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.93
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking crc-catalog v2.1.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking crc v3.0.0
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking clap v3.1.17
[INFO] [stderr]     Checking pngchat v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `chunk_type::ChunkType`
[INFO] [stdout]  --> src/png.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use crate::{chunk::Chunk, chunk_type::ChunkType};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chunk_type::ChunkType`
[INFO] [stdout]  --> src/png.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use crate::{chunk::Chunk, chunk_type::ChunkType};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// Input PNG file path
[INFO] [stdout] 30 | |     pub file_path: PathBuf,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     /// Chunk Type
[INFO] [stdout] 32 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// Hideen message you want to put
[INFO] [stdout] 34 | |     pub message: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     /// If set, save PNG with hidden message in a certian place
[INFO] [stdout] 36 | |     pub output_file: Option<PathBuf>,
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     /// Input PNG file path
[INFO] [stdout] 42 | |     pub file_path: PathBuf,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// Chunk Type
[INFO] [stdout] 44 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     /// Input PNG file path
[INFO] [stdout] 50 | |     pub file_path: PathBuf,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | /     /// Chunk Type
[INFO] [stdout] 52 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     /// Input PNG file path
[INFO] [stdout] 58 | |     pub file_path: PathBuf,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pngchat` (lib) due to 9 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// Input PNG file path
[INFO] [stdout] 30 | |     pub file_path: PathBuf,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     /// Chunk Type
[INFO] [stdout] 32 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// Hideen message you want to put
[INFO] [stdout] 34 | |     pub message: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | /     /// If set, save PNG with hidden message in a certian place
[INFO] [stdout] 36 | |     pub output_file: Option<PathBuf>,
[INFO] [stdout]    | |____________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     /// Input PNG file path
[INFO] [stdout] 42 | |     pub file_path: PathBuf,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// Chunk Type
[INFO] [stdout] 44 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     /// Input PNG file path
[INFO] [stdout] 50 | |     pub file_path: PathBuf,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | /     /// Chunk Type
[INFO] [stdout] 52 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     /// Input PNG file path
[INFO] [stdout] 58 | |     pub file_path: PathBuf,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/commands.rs:72:33
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut path: PathBuf = IMG_PATH.try_into().unwrap();
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/commands.rs:78:33
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let mut path: PathBuf = IMG_PATH.try_into().unwrap();
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pngchat` (lib test) due to 11 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "4a25ac64ee3d6b1826012c5611db00980facafee6210ad7a63d50879313e0200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a25ac64ee3d6b1826012c5611db00980facafee6210ad7a63d50879313e0200", kill_on_drop: false }`
[INFO] [stdout] 4a25ac64ee3d6b1826012c5611db00980facafee6210ad7a63d50879313e0200
