[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 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabalolajnr%2FImage-Shifter" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/babalolajnr/Image-Shifter on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "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-4-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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91fbd8fdf5c902e3ffe6e06ad9362ccf8067c505c4463654c41dec34a9b79a38
[INFO] running `Command { std: "docker" "start" "-a" "91fbd8fdf5c902e3ffe6e06ad9362ccf8067c505c4463654c41dec34a9b79a38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91fbd8fdf5c902e3ffe6e06ad9362ccf8067c505c4463654c41dec34a9b79a38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91fbd8fdf5c902e3ffe6e06ad9362ccf8067c505c4463654c41dec34a9b79a38", kill_on_drop: false }`
[INFO] [stdout] 91fbd8fdf5c902e3ffe6e06ad9362ccf8067c505c4463654c41dec34a9b79a38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b11f974e33d88dd8b1ebdb1104ef043b6ab9c0954ea431c08349d60cee4ce66b
[INFO] running `Command { std: "docker" "start" "-a" "b11f974e33d88dd8b1ebdb1104ef043b6ab9c0954ea431c08349d60cee4ce66b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking bytemuck v1.7.0
[INFO] [stderr]     Checking directories v3.0.2
[INFO] [stderr]     Checking png v0.16.8
[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<String, ImageError>`
[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 1 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` (bin "rust-image-processor" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b11f974e33d88dd8b1ebdb1104ef043b6ab9c0954ea431c08349d60cee4ce66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b11f974e33d88dd8b1ebdb1104ef043b6ab9c0954ea431c08349d60cee4ce66b", kill_on_drop: false }`
[INFO] [stdout] b11f974e33d88dd8b1ebdb1104ef043b6ab9c0954ea431c08349d60cee4ce66b
[INFO] checking babalolajnr/Image-Shifter against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabalolajnr%2FImage-Shifter" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/babalolajnr/Image-Shifter on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "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-4-tc2/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" "+dae34b759e282c069aa28752564694effd121a63" "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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93deb8435c1b49963e16b9b1f15ba037c063c9f5423f79327df6da3ed612010d
[INFO] running `Command { std: "docker" "start" "-a" "93deb8435c1b49963e16b9b1f15ba037c063c9f5423f79327df6da3ed612010d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93deb8435c1b49963e16b9b1f15ba037c063c9f5423f79327df6da3ed612010d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93deb8435c1b49963e16b9b1f15ba037c063c9f5423f79327df6da3ed612010d", kill_on_drop: false }`
[INFO] [stdout] 93deb8435c1b49963e16b9b1f15ba037c063c9f5423f79327df6da3ed612010d
[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=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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34630216edd020011d88eaa47e8d579d0edc673e0d99b326babd16e120c20f3c
[INFO] running `Command { std: "docker" "start" "-a" "34630216edd020011d88eaa47e8d579d0edc673e0d99b326babd16e120c20f3c", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "34630216edd020011d88eaa47e8d579d0edc673e0d99b326babd16e120c20f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34630216edd020011d88eaa47e8d579d0edc673e0d99b326babd16e120c20f3c", kill_on_drop: false }`
[INFO] [stdout] 34630216edd020011d88eaa47e8d579d0edc673e0d99b326babd16e120c20f3c