[INFO] cloning repository https://github.com/Palmkonde/secret-msg-png
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Palmkonde/secret-msg-png" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPalmkonde%2Fsecret-msg-png", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPalmkonde%2Fsecret-msg-png'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 389d26527e280843f3b6d23c7e497ceff911cf5c
[INFO] checking Palmkonde/secret-msg-png against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPalmkonde%2Fsecret-msg-png" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Palmkonde/secret-msg-png
[INFO] finished tweaking git repo https://github.com/Palmkonde/secret-msg-png
[INFO] tweaked toml for git repo https://github.com/Palmkonde/secret-msg-png written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Palmkonde/secret-msg-png 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 git repo https://github.com/Palmkonde/secret-msg-png 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] [stderr] warning: unused manifest key: dependencies.clap.feature
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e6e2d4fd0d1c78f9529efdba3d69e3e6e4625b22aa545ca1b71535ac3c30e162
[INFO] running `Command { std: "docker" "start" "-a" "e6e2d4fd0d1c78f9529efdba3d69e3e6e4625b22aa545ca1b71535ac3c30e162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6e2d4fd0d1c78f9529efdba3d69e3e6e4625b22aa545ca1b71535ac3c30e162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e2d4fd0d1c78f9529efdba3d69e3e6e4625b22aa545ca1b71535ac3c30e162", kill_on_drop: false }`
[INFO] [stdout] e6e2d4fd0d1c78f9529efdba3d69e3e6e4625b22aa545ca1b71535ac3c30e162
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7f2306d4d1d75ec68e9d522741db389d4ee01b6757e02480be838d2d7fe5ca0c
[INFO] running `Command { std: "docker" "start" "-a" "7f2306d4d1d75ec68e9d522741db389d4ee01b6757e02480be838d2d7fe5ca0c", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.clap.feature
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking anstyle-query v1.1.3
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking anstream v0.6.19
[INFO] [stderr]     Checking crc v3.3.0
[INFO] [stderr]     Checking clap_builder v4.5.39
[INFO] [stderr]     Checking clap v4.5.39
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/args.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     /// Input Png file path
[INFO] [stdout] 16 | |     #[structopt(short, long)]
[INFO] [stdout] 17 | |     pub input: 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<String, Infallible>
[INFO] [stdout]   --> src/args.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     /// Chunk type to encode
[INFO] [stdout] 20 | |     #[structopt(short = "c", long = "chunk-type")]
[INFO] [stdout] 21 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     /// Secret message to encode
[INFO] [stdout] 24 | |     #[structopt(short)]
[INFO] [stdout] 25 | |     pub secret: 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:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | /     /// Output file path
[INFO] [stdout] 28 | |     #[structopt(short, long)]
[INFO] [stdout] 29 | |     pub output: 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:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     /// Input Png file path
[INFO] [stdout] 39 | |     #[structopt(short, long)]
[INFO] [stdout] 40 | |     pub input: PathBuf,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     /// Chunk type to encode
[INFO] [stdout] 43 | |     #[structopt(short = "c", long = "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 | |     #[structopt(short, long)]
[INFO] [stdout] 51 | |     pub input: 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:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// Input Png file path
[INFO] [stdout] 57 | |     #[structopt(short, long)]
[INFO] [stdout] 58 | |     pub input: PathBuf,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     /// Chunk type to remove
[INFO] [stdout] 61 | |     #[structopt(short = "c", long = "chunk-type")]
[INFO] [stdout] 62 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pngme` (bin "pngme") due to 9 previous errors
[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:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     /// Input Png file path
[INFO] [stdout] 16 | |     #[structopt(short, long)]
[INFO] [stdout] 17 | |     pub input: 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<String, Infallible>
[INFO] [stdout]   --> src/args.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     /// Chunk type to encode
[INFO] [stdout] 20 | |     #[structopt(short = "c", long = "chunk-type")]
[INFO] [stdout] 21 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     /// Secret message to encode
[INFO] [stdout] 24 | |     #[structopt(short)]
[INFO] [stdout] 25 | |     pub secret: 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:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | /     /// Output file path
[INFO] [stdout] 28 | |     #[structopt(short, long)]
[INFO] [stdout] 29 | |     pub output: 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:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     /// Input Png file path
[INFO] [stdout] 39 | |     #[structopt(short, long)]
[INFO] [stdout] 40 | |     pub input: PathBuf,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     /// Chunk type to encode
[INFO] [stdout] 43 | |     #[structopt(short = "c", long = "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 | |     #[structopt(short, long)]
[INFO] [stdout] 51 | |     pub input: 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:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// Input Png file path
[INFO] [stdout] 57 | |     #[structopt(short, long)]
[INFO] [stdout] 58 | |     pub input: PathBuf,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/args.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     /// Chunk type to remove
[INFO] [stdout] 61 | |     #[structopt(short = "c", long = "chunk-type")]
[INFO] [stdout] 62 | |     pub chunk_type: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pngme` (bin "pngme" test) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "7f2306d4d1d75ec68e9d522741db389d4ee01b6757e02480be838d2d7fe5ca0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f2306d4d1d75ec68e9d522741db389d4ee01b6757e02480be838d2d7fe5ca0c", kill_on_drop: false }`
[INFO] [stdout] 7f2306d4d1d75ec68e9d522741db389d4ee01b6757e02480be838d2d7fe5ca0c
