[INFO] updating cached repository maxbeutel/rust-hough-transform
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/maxbeutel/rust-hough-transform
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/maxbeutel/rust-hough-transform" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/maxbeutel/rust-hough-transform"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/maxbeutel/rust-hough-transform'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/maxbeutel/rust-hough-transform" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/maxbeutel/rust-hough-transform"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/maxbeutel/rust-hough-transform'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e28c0f7dbd810d40d0dbc1085b1b65ce70e2a084
[INFO] sha for GitHub repo maxbeutel/rust-hough-transform: e28c0f7dbd810d40d0dbc1085b1b65ce70e2a084
[INFO] validating manifest of maxbeutel/rust-hough-transform on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of maxbeutel/rust-hough-transform on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing maxbeutel/rust-hough-transform
[INFO] finished frobbing maxbeutel/rust-hough-transform
[INFO] frobbed toml for maxbeutel/rust-hough-transform written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/maxbeutel/rust-hough-transform/Cargo.toml
[INFO] started frobbing maxbeutel/rust-hough-transform
[INFO] finished frobbing maxbeutel/rust-hough-transform
[INFO] frobbed toml for maxbeutel/rust-hough-transform written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/maxbeutel/rust-hough-transform/Cargo.toml
[INFO] crate maxbeutel/rust-hough-transform already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking maxbeutel/rust-hough-transform against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-2/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/maxbeutel/rust-hough-transform:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 54b547141a3f695709adb56965f7a0904bb11d4818f41d13ab639ba8cb3da422
[INFO] running `"docker" "start" "-a" "54b547141a3f695709adb56965f7a0904bb11d4818f41d13ab639ba8cb3da422"`
[INFO] [stderr]    Compiling typenum v1.6.0
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.2.27
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking alga v0.5.1
[INFO] [stderr]     Checking enum_primitive v0.1.0
[INFO] [stderr]     Checking nalgebra v0.5.1
[INFO] [stderr]     Checking image v0.12.3
[INFO] [stderr]     Checking generic-array v0.2.1
[INFO] [stderr]     Checking nalgebra v0.11.1
[INFO] [stderr]     Checking imageproc v0.7.0
[INFO] [stderr]     Checking hough-transform v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn dump_line_visualization(mut img: &mut image::DynamicImage,
[INFO] [stderr]    |                            ----^^^
[INFO] [stderr]    |                            |
[INFO] [stderr]    |                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn dump_line_visualization(mut img: &mut image::DynamicImage,
[INFO] [stderr]    |                            ----^^^
[INFO] [stderr]    |                            |
[INFO] [stderr]    |                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.36s
[INFO] running `"docker" "inspect" "54b547141a3f695709adb56965f7a0904bb11d4818f41d13ab639ba8cb3da422"`
[INFO] running `"docker" "rm" "-f" "54b547141a3f695709adb56965f7a0904bb11d4818f41d13ab639ba8cb3da422"`
[INFO] [stdout] 54b547141a3f695709adb56965f7a0904bb11d4818f41d13ab639ba8cb3da422