[INFO] cloning repository https://github.com/serg06/image_segmenter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/serg06/image_segmenter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserg06%2Fimage_segmenter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserg06%2Fimage_segmenter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d04163b30c7175f61472f16b596fd8cde68812bf
[INFO] checking serg06/image_segmenter 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%2Fserg06%2Fimage_segmenter" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/serg06/image_segmenter
[INFO] finished tweaking git repo https://github.com/serg06/image_segmenter
[INFO] tweaked toml for git repo https://github.com/serg06/image_segmenter written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/serg06/image_segmenter 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/serg06/image_segmenter 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] b0d87ccc48a8f4f9ef7af60258bf4c476924fe8054c7871c0ce1c25e8595fc64
[INFO] running `Command { std: "docker" "start" "-a" "b0d87ccc48a8f4f9ef7af60258bf4c476924fe8054c7871c0ce1c25e8595fc64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0d87ccc48a8f4f9ef7af60258bf4c476924fe8054c7871c0ce1c25e8595fc64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d87ccc48a8f4f9ef7af60258bf4c476924fe8054c7871c0ce1c25e8595fc64", kill_on_drop: false }`
[INFO] [stdout] b0d87ccc48a8f4f9ef7af60258bf4c476924fe8054c7871c0ce1c25e8595fc64
[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] f2003ad9734c383a681567b99a8f2995662cdcb2d53c22b5fbf09b00b416f7a8
[INFO] running `Command { std: "docker" "start" "-a" "f2003ad9734c383a681567b99a8f2995662cdcb2d53c22b5fbf09b00b416f7a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling rayon-core v1.9.2
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling rayon v1.5.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking weezl v0.1.6
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling static_vcruntime v2.0.0
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking clap_lex v0.1.1
[INFO] [stderr]    Compiling image_segmenter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking flate2 v1.0.23
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking jpeg-decoder v0.2.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tiff v0.7.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking clap v3.1.12
[INFO] [stderr]     Checking flume v0.10.12
[INFO] [stderr]     Checking exr v1.4.2
[INFO] [stderr]     Checking image v0.24.1
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/args.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     /// Path to the input image
[INFO] [stdout] 7 | |     #[clap(short, long)]
[INFO] [stdout] 8 | |     pub img: 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/args.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// Path to the output image
[INFO] [stdout] 11 | |     #[clap(short, long)]
[INFO] [stdout] 12 | |     pub out: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `image_segmenter` (bin "image_segmenter" test) 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/args.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     /// Path to the input image
[INFO] [stdout] 7 | |     #[clap(short, long)]
[INFO] [stdout] 8 | |     pub img: 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/args.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// Path to the output image
[INFO] [stdout] 11 | |     #[clap(short, long)]
[INFO] [stdout] 12 | |     pub out: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `image_segmenter` (bin "image_segmenter") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f2003ad9734c383a681567b99a8f2995662cdcb2d53c22b5fbf09b00b416f7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2003ad9734c383a681567b99a8f2995662cdcb2d53c22b5fbf09b00b416f7a8", kill_on_drop: false }`
[INFO] [stdout] f2003ad9734c383a681567b99a8f2995662cdcb2d53c22b5fbf09b00b416f7a8