[INFO] cloning repository https://github.com/iwahara/crab-scissors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iwahara/crab-scissors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwahara%2Fcrab-scissors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwahara%2Fcrab-scissors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 547a2a92fc632f50d7120af6c22fabc8e2784518
[INFO] checking iwahara/crab-scissors 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%2Fiwahara%2Fcrab-scissors" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iwahara/crab-scissors
[INFO] finished tweaking git repo https://github.com/iwahara/crab-scissors
[INFO] tweaked toml for git repo https://github.com/iwahara/crab-scissors written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iwahara/crab-scissors 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/iwahara/crab-scissors 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9bdadfac7567cd0606fe516127955d71367318d5e7a9304b81f0c4fa1eb78b7c
[INFO] running `Command { std: "docker" "start" "-a" "9bdadfac7567cd0606fe516127955d71367318d5e7a9304b81f0c4fa1eb78b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bdadfac7567cd0606fe516127955d71367318d5e7a9304b81f0c4fa1eb78b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bdadfac7567cd0606fe516127955d71367318d5e7a9304b81f0c4fa1eb78b7c", kill_on_drop: false }`
[INFO] [stdout] 9bdadfac7567cd0606fe516127955d71367318d5e7a9304b81f0c4fa1eb78b7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ac5037aa5bdbb313646666bb2147f04d704b52770ed18a1d9d58e51e1e6af221
[INFO] running `Command { std: "docker" "start" "-a" "ac5037aa5bdbb313646666bb2147f04d704b52770ed18a1d9d58e51e1e6af221", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking weezl v0.1.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking lebe v0.5.1
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking rayon-core v1.9.3
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking rayon v1.5.3
[INFO] [stderr]     Checking jpeg-decoder v0.2.6
[INFO] [stderr]     Checking tiff v0.7.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking flume v0.10.13
[INFO] [stderr]     Checking exr v1.4.2
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking image v0.24.2
[INFO] [stderr]     Checking crab-scissors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | /         #[clap(short, long, help = "target image path.")]
[INFO] [stdout] 23 | |         path: String,
[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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         #[clap(short = 'o', long, help = "output directory for Split image.")]
[INFO] [stdout] 33 | |         output_dir: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crab-scissors` (bin "crab-scissors") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | /         #[clap(short, long, help = "target image path.")]
[INFO] [stdout] 23 | |         path: String,
[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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         #[clap(short = 'o', long, help = "output directory for Split image.")]
[INFO] [stdout] 33 | |         output_dir: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crab-scissors` (bin "crab-scissors" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ac5037aa5bdbb313646666bb2147f04d704b52770ed18a1d9d58e51e1e6af221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac5037aa5bdbb313646666bb2147f04d704b52770ed18a1d9d58e51e1e6af221", kill_on_drop: false }`
[INFO] [stdout] ac5037aa5bdbb313646666bb2147f04d704b52770ed18a1d9d58e51e1e6af221