[INFO] updating cached repository https://github.com/sourgrasses/pixelater
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 807ed4aa520d36b727bf28d6078e57fbe5fd3d62
[INFO] testing sourgrasses/pixelater against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsourgrasses%2Fpixelater" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sourgrasses/pixelater on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sourgrasses/pixelater
[INFO] finished tweaking git repo https://github.com/sourgrasses/pixelater
[INFO] tweaked toml for git repo https://github.com/sourgrasses/pixelater written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/sourgrasses/pixelater already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f4f15699c39f7434735b8e20d57dd9d4f2d9b598b127952a2ac9a401a7ceecec
[INFO] running `"docker" "start" "-a" "f4f15699c39f7434735b8e20d57dd9d4f2d9b598b127952a2ac9a401a7ceecec"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libcruby-sys v0.7.5
[INFO] [stderr]    Compiling cstr-macro v0.1.0
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]    Compiling helix v0.7.5
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.20.1
[INFO] [stderr]    Compiling pixelater v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/piximage.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 |         let pix_width = (self.w / (self.pix_level * 10) as u32);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/piximage.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let pix_height = (self.h / (self.pix_level * 10) as u32);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/piximage.rs:51:56
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 let pix_ref = self.image.get_pixel_mut((x + pix_width / 2), (y + pix_height / 2));
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/piximage.rs:51:77
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 let pix_ref = self.image.get_pixel_mut((x + pix_width / 2), (y + pix_height / 2));
[INFO] [stderr]    |                                                                             ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.02s
[INFO] running `"docker" "inspect" "f4f15699c39f7434735b8e20d57dd9d4f2d9b598b127952a2ac9a401a7ceecec"`
[INFO] running `"docker" "rm" "-f" "f4f15699c39f7434735b8e20d57dd9d4f2d9b598b127952a2ac9a401a7ceecec"`
[INFO] [stdout] f4f15699c39f7434735b8e20d57dd9d4f2d9b598b127952a2ac9a401a7ceecec
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 299470414d21f4878580560f17161d09df46a2d80ea4abc5eb7d2da142443035
[INFO] running `"docker" "start" "-a" "299470414d21f4878580560f17161d09df46a2d80ea4abc5eb7d2da142443035"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling pixelater v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/piximage.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 |         let pix_width = (self.w / (self.pix_level * 10) as u32);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/piximage.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let pix_height = (self.h / (self.pix_level * 10) as u32);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/piximage.rs:51:56
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 let pix_ref = self.image.get_pixel_mut((x + pix_width / 2), (y + pix_height / 2));
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/piximage.rs:51:77
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 let pix_ref = self.image.get_pixel_mut((x + pix_width / 2), (y + pix_height / 2));
[INFO] [stderr]    |                                                                             ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.04s
[INFO] running `"docker" "inspect" "299470414d21f4878580560f17161d09df46a2d80ea4abc5eb7d2da142443035"`
[INFO] running `"docker" "rm" "-f" "299470414d21f4878580560f17161d09df46a2d80ea4abc5eb7d2da142443035"`
[INFO] [stdout] 299470414d21f4878580560f17161d09df46a2d80ea4abc5eb7d2da142443035
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a2e99e448e76b33fa48e4041caf21c415cd11769a5c60ce7b435f951c7d82c61
[INFO] running `"docker" "start" "-a" "a2e99e448e76b33fa48e4041caf21c415cd11769a5c60ce7b435f951c7d82c61"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / ruby! {
[INFO] [stderr] 15 | |     class PixelSelection {
[INFO] [stderr] 16 | |         struct {
[INFO] [stderr] 17 | |             x: u32,
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |     }
[INFO] [stderr] 67 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/piximage.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 |         let pix_width = (self.w / (self.pix_level * 10) as u32);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/piximage.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let pix_height = (self.h / (self.pix_level * 10) as u32);
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/piximage.rs:51:56
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 let pix_ref = self.image.get_pixel_mut((x + pix_width / 2), (y + pix_height / 2));
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/piximage.rs:51:77
[INFO] [stderr]    |
[INFO] [stderr] 51 |                 let pix_ref = self.image.get_pixel_mut((x + pix_width / 2), (y + pix_height / 2));
[INFO] [stderr]    |                                                                             ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pixelater-137de317e28b193f
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a2e99e448e76b33fa48e4041caf21c415cd11769a5c60ce7b435f951c7d82c61"`
[INFO] running `"docker" "rm" "-f" "a2e99e448e76b33fa48e4041caf21c415cd11769a5c60ce7b435f951c7d82c61"`
[INFO] [stdout] a2e99e448e76b33fa48e4041caf21c415cd11769a5c60ce7b435f951c7d82c61