[INFO] cloning repository https://github.com/babalolajnr/Image-Shifter [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/babalolajnr/Image-Shifter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabalolajnr%2FImage-Shifter", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabalolajnr%2FImage-Shifter'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5efdf14a38f8c134ac152f9fd320ddaea7872a93 [INFO] checking babalolajnr/Image-Shifter/5efdf14a38f8c134ac152f9fd320ddaea7872a93 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabalolajnr%2FImage-Shifter" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/babalolajnr/Image-Shifter on toolchain ff1737bb00913444173658b4e0b274fd79aabf66 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/babalolajnr/Image-Shifter [INFO] finished tweaking git repo https://github.com/babalolajnr/Image-Shifter [INFO] tweaked toml for git repo https://github.com/babalolajnr/Image-Shifter written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/babalolajnr/Image-Shifter 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded structopt-derive v0.4.15 [INFO] [stderr] Downloaded num-complex v0.4.0 [INFO] [stderr] Downloaded redox_syscall v0.2.9 [INFO] [stderr] Downloaded memoffset v0.6.4 [INFO] [stderr] Downloaded crossbeam-deque v0.8.0 [INFO] [stderr] Downloaded bytemuck v1.7.0 [INFO] [stderr] Downloaded crossbeam-utils v0.8.5 [INFO] [stderr] Downloaded gif v0.11.2 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.5 [INFO] [stderr] Downloaded crossbeam-channel v0.5.1 [INFO] [stderr] Downloaded structopt v0.3.22 [INFO] [stderr] Downloaded weezl v0.1.5 [INFO] [stderr] Downloaded crc32fast v1.2.1 [INFO] [stderr] Downloaded proc-macro2 v1.0.27 [INFO] [stderr] Downloaded directories v3.0.2 [INFO] [stderr] Downloaded syn v1.0.73 [INFO] [stderr] Downloaded libc v0.2.97 [INFO] [stderr] Downloaded tiff v0.6.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1484d8c5ea1ba03a8b6445ec764ca83ef28f6cc21b8f9256425683d11da9e361 [INFO] running `Command { std: "docker" "start" "-a" "1484d8c5ea1ba03a8b6445ec764ca83ef28f6cc21b8f9256425683d11da9e361", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1484d8c5ea1ba03a8b6445ec764ca83ef28f6cc21b8f9256425683d11da9e361", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1484d8c5ea1ba03a8b6445ec764ca83ef28f6cc21b8f9256425683d11da9e361", kill_on_drop: false }` [INFO] [stdout] 1484d8c5ea1ba03a8b6445ec764ca83ef28f6cc21b8f9256425683d11da9e361 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7c1c956a3bfdd3582d123585ea00737f701321ab69d0aca7c864c6b7053e3577 [INFO] running `Command { std: "docker" "start" "-a" "7c1c956a3bfdd3582d123585ea00737f701321ab69d0aca7c864c6b7053e3577", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.97 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Checking weezl v0.1.5 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Checking deflate v0.8.6 [INFO] [stderr] Checking miniz_oxide v0.3.7 [INFO] [stderr] Checking color_quant v1.1.0 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking bytemuck v1.7.0 [INFO] [stderr] Checking gif v0.11.2 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking png v0.16.8 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs-sys v0.3.6 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking directories v3.0.2 [INFO] [stderr] Checking num-complex v0.4.0 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking tiff v0.6.1 [INFO] [stderr] Compiling structopt-derive v0.4.15 [INFO] [stderr] Checking image v0.23.14 [INFO] [stderr] Checking structopt v0.3.22 [INFO] [stderr] Checking rust-image-processor v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/converter.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | converter.grayscale() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ expected `()`, found `Result` [INFO] [stdout] | [INFO] [stdout] = note: expected unit type `()` [INFO] [stdout] found enum `Result` [INFO] [stdout] help: consider using a semicolon here [INFO] [stdout] | [INFO] [stdout] 120 | converter.grayscale(); [INFO] [stdout] | + [INFO] [stdout] help: try adding a return type [INFO] [stdout] | [INFO] [stdout] 117 | fn test_grayscale() -> Result { [INFO] [stdout] | +++++++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-image-processor` (bin "rust-image-processor" test) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "7c1c956a3bfdd3582d123585ea00737f701321ab69d0aca7c864c6b7053e3577", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c1c956a3bfdd3582d123585ea00737f701321ab69d0aca7c864c6b7053e3577", kill_on_drop: false }` [INFO] [stdout] 7c1c956a3bfdd3582d123585ea00737f701321ab69d0aca7c864c6b7053e3577