[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] 8053297a7782d9260bcfa4248994b6202b7ddbd0
[INFO] testing babalolajnr/Image-Shifter against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabalolajnr%2FImage-Shifter" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/babalolajnr/Image-Shifter on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-1/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: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytemuck v1.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a2799b72c63bafc40adfc2cb85baccf98d5ba86fd4e81f02dbdaf9341cdf12f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3a2799b72c63bafc40adfc2cb85baccf98d5ba86fd4e81f02dbdaf9341cdf12f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a2799b72c63bafc40adfc2cb85baccf98d5ba86fd4e81f02dbdaf9341cdf12f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a2799b72c63bafc40adfc2cb85baccf98d5ba86fd4e81f02dbdaf9341cdf12f", kill_on_drop: false }`
[INFO] [stdout] 3a2799b72c63bafc40adfc2cb85baccf98d5ba86fd4e81f02dbdaf9341cdf12f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c17bfe1f3cfe3601efddb3277db092d099b1bf10cae8309f0d14dd76192d6a3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c17bfe1f3cfe3601efddb3277db092d099b1bf10cae8309f0d14dd76192d6a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling structopt v0.3.22
[INFO] [stderr]    Compiling rust-image-processor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `filter3x3`
[INFO] [stdout]   --> src/converter.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn filter3x3(&self) -> Result<String, ImageError> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.50s
[INFO] running `Command { std: "docker" "inspect" "1c17bfe1f3cfe3601efddb3277db092d099b1bf10cae8309f0d14dd76192d6a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c17bfe1f3cfe3601efddb3277db092d099b1bf10cae8309f0d14dd76192d6a3", kill_on_drop: false }`
[INFO] [stdout] 1c17bfe1f3cfe3601efddb3277db092d099b1bf10cae8309f0d14dd76192d6a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c661871bd2ca94f3ffca25241c15009fae0926498603533607619055e9bedcf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c661871bd2ca94f3ffca25241c15009fae0926498603533607619055e9bedcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 enum `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Result<String, ImageError>`
[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<String, ImageError> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1c661871bd2ca94f3ffca25241c15009fae0926498603533607619055e9bedcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c661871bd2ca94f3ffca25241c15009fae0926498603533607619055e9bedcf", kill_on_drop: false }`
[INFO] [stdout] 1c661871bd2ca94f3ffca25241c15009fae0926498603533607619055e9bedcf
