[INFO] fetching crate exoquant 0.2.0...
[INFO] extracting crate exoquant 0.2.0 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/exoquant/0.2.0
[INFO] extracting crate exoquant 0.2.0 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/exoquant/0.2.0
[INFO] validating manifest of exoquant-0.2.0 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of exoquant-0.2.0 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing exoquant-0.2.0
[INFO] finished frobbing exoquant-0.2.0
[INFO] frobbed toml for exoquant-0.2.0 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/exoquant/0.2.0/Cargo.toml
[INFO] started frobbing exoquant-0.2.0
[INFO] finished frobbing exoquant-0.2.0
[INFO] frobbed toml for exoquant-0.2.0 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/exoquant/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing exoquant-0.2.0 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/exoquant/0.2.0:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] fda388b792f518666625c4200eb58dc6b45898f5961d1d903de5bc11207ea1af
[INFO] running `"docker" "start" "-a" "fda388b792f518666625c4200eb58dc6b45898f5961d1d903de5bc11207ea1af"`
[INFO] [stderr]    Compiling exoquant v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/histogram.rs:53:48
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn to_color_counts(&self, colorspace: &ColorSpace) -> Vec<ColorCount> {
[INFO] [stderr]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/histogram.rs:66:38
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item = (&Color, &usize)> + 'a> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (&Color, &usize)> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/quantizer.rs:211:39
[INFO] [stderr]     |
[INFO] [stderr] 211 |     pub fn optimize(self, optimizer: &Optimizer, num_iterations: usize) -> Quantizer {
[INFO] [stderr]     |                                       ^^^^^^^^^ help: use `dyn`: `dyn Optimizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/remapper.rs:73:38
[INFO] [stderr]    |
[INFO] [stderr] 73 |                           image: Box<Iterator<Item = Color> + 'b>,
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Color> + 'b`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/remapper.rs:75:34
[INFO] [stderr]    |
[INFO] [stderr] 75 |                           -> Box<Iterator<Item = u8> + 'b> {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'b`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/remapper.rs:87:44
[INFO] [stderr]    |
[INFO] [stderr] 87 |                                 image: Box<Iterator<Item = Color> + 'b>,
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Color> + 'b`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/remapper.rs:89:40
[INFO] [stderr]    |
[INFO] [stderr] 89 |                                 -> Box<Iterator<Item = usize> + 'b> {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'b`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/optimizer.rs:27:38
[INFO] [stderr]    |
[INFO] [stderr] 27 |                         colorspace: &ColorSpace,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:13:29
[INFO] [stderr]    |
[INFO] [stderr] 13 |                  image: Box<Iterator<Item = Colorf> + 'a>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Colorf> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:16:34
[INFO] [stderr]    |
[INFO] [stderr] 16 |                  colorspace: &'a ColorSpace)
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:17:25
[INFO] [stderr]    |
[INFO] [stderr] 17 |                  -> Box<Iterator<Item = usize> + 'a>;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 |                  image: Box<Iterator<Item = Colorf> + 'a>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Colorf> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |                  _: &'a ColorSpace)
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:29:25
[INFO] [stderr]    |
[INFO] [stderr] 29 |                  -> Box<Iterator<Item = usize> + 'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:46:29
[INFO] [stderr]    |
[INFO] [stderr] 46 |                  image: Box<Iterator<Item = Colorf> + 'a>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Colorf> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:49:25
[INFO] [stderr]    |
[INFO] [stderr] 49 |                  _: &'a ColorSpace)
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:50:25
[INFO] [stderr]    |
[INFO] [stderr] 50 |                  -> Box<Iterator<Item = usize> + 'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:85:29
[INFO] [stderr]    |
[INFO] [stderr] 85 |                  image: Box<Iterator<Item = Colorf> + 'a>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Colorf> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:88:34
[INFO] [stderr]    |
[INFO] [stderr] 88 |                  colorspace: &'a ColorSpace)
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:89:25
[INFO] [stderr]    |
[INFO] [stderr] 89 |                  -> Box<Iterator<Item = usize> + 'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'a`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `"docker" "inspect" "fda388b792f518666625c4200eb58dc6b45898f5961d1d903de5bc11207ea1af"`
[INFO] running `"docker" "rm" "-f" "fda388b792f518666625c4200eb58dc6b45898f5961d1d903de5bc11207ea1af"`
[INFO] [stdout] fda388b792f518666625c4200eb58dc6b45898f5961d1d903de5bc11207ea1af
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/exoquant/0.2.0:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3adaf7fe236573f0d86f9b714c09ecacdb05c228cfcbdff49951158ddfd0ca1c
[INFO] running `"docker" "start" "-a" "3adaf7fe236573f0d86f9b714c09ecacdb05c228cfcbdff49951158ddfd0ca1c"`
[INFO] [stderr]    Compiling lodepng v0.8.2
[INFO] [stderr]    Compiling c_vec v1.3.3
[INFO] [stderr]    Compiling exoquant v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/histogram.rs:53:48
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn to_color_counts(&self, colorspace: &ColorSpace) -> Vec<ColorCount> {
[INFO] [stderr]    |                                                ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/histogram.rs:66:38
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item = (&Color, &usize)> + 'a> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (&Color, &usize)> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/quantizer.rs:211:39
[INFO] [stderr]     |
[INFO] [stderr] 211 |     pub fn optimize(self, optimizer: &Optimizer, num_iterations: usize) -> Quantizer {
[INFO] [stderr]     |                                       ^^^^^^^^^ help: use `dyn`: `dyn Optimizer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/remapper.rs:73:38
[INFO] [stderr]    |
[INFO] [stderr] 73 |                           image: Box<Iterator<Item = Color> + 'b>,
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Color> + 'b`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/remapper.rs:75:34
[INFO] [stderr]    |
[INFO] [stderr] 75 |                           -> Box<Iterator<Item = u8> + 'b> {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8> + 'b`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/remapper.rs:87:44
[INFO] [stderr]    |
[INFO] [stderr] 87 |                                 image: Box<Iterator<Item = Color> + 'b>,
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Color> + 'b`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/remapper.rs:89:40
[INFO] [stderr]    |
[INFO] [stderr] 89 |                                 -> Box<Iterator<Item = usize> + 'b> {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'b`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/optimizer.rs:27:38
[INFO] [stderr]    |
[INFO] [stderr] 27 |                         colorspace: &ColorSpace,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:13:29
[INFO] [stderr]    |
[INFO] [stderr] 13 |                  image: Box<Iterator<Item = Colorf> + 'a>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Colorf> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:16:34
[INFO] [stderr]    |
[INFO] [stderr] 16 |                  colorspace: &'a ColorSpace)
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:17:25
[INFO] [stderr]    |
[INFO] [stderr] 17 |                  -> Box<Iterator<Item = usize> + 'a>;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 |                  image: Box<Iterator<Item = Colorf> + 'a>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Colorf> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |                  _: &'a ColorSpace)
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:29:25
[INFO] [stderr]    |
[INFO] [stderr] 29 |                  -> Box<Iterator<Item = usize> + 'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:46:29
[INFO] [stderr]    |
[INFO] [stderr] 46 |                  image: Box<Iterator<Item = Colorf> + 'a>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Colorf> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:49:25
[INFO] [stderr]    |
[INFO] [stderr] 49 |                  _: &'a ColorSpace)
[INFO] [stderr]    |                         ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:50:25
[INFO] [stderr]    |
[INFO] [stderr] 50 |                  -> Box<Iterator<Item = usize> + 'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:85:29
[INFO] [stderr]    |
[INFO] [stderr] 85 |                  image: Box<Iterator<Item = Colorf> + 'a>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Colorf> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:88:34
[INFO] [stderr]    |
[INFO] [stderr] 88 |                  colorspace: &'a ColorSpace)
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn ColorSpace`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ditherer.rs:89:25
[INFO] [stderr]    |
[INFO] [stderr] 89 |                  -> Box<Iterator<Item = usize> + 'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize> + 'a`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.08s
[INFO] running `"docker" "inspect" "3adaf7fe236573f0d86f9b714c09ecacdb05c228cfcbdff49951158ddfd0ca1c"`
[INFO] running `"docker" "rm" "-f" "3adaf7fe236573f0d86f9b714c09ecacdb05c228cfcbdff49951158ddfd0ca1c"`
[INFO] [stdout] 3adaf7fe236573f0d86f9b714c09ecacdb05c228cfcbdff49951158ddfd0ca1c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/exoquant/0.2.0:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 02378675d6a194d53b1e6da69e4382f674defac5cbc927904826848bd8d48a92
[INFO] running `"docker" "start" "-a" "02378675d6a194d53b1e6da69e4382f674defac5cbc927904826848bd8d48a92"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/exoquant-bbbe79925e0fa9b8
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test histogram::tests::count_duplicates ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests exoquant
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/quantizer.rs - quantizer::Quantizer (line 114) ... ok
[INFO] [stdout] test src/histogram.rs - histogram::Histogram (line 17) ... ok
[INFO] [stdout] test src/histogram.rs - histogram::Histogram (line 24) ... ok
[INFO] [stdout] test src/basicapi.rs - basicapi::convert_to_indexed (line 8) ... ok
[INFO] [stdout] test src/basicapi.rs - basicapi::generate_palette (line 39) ... ok
[INFO] [stdout] test src/quantizer.rs - quantizer::Quantizer (line 126) ... ok
[INFO] [stdout] test src/remapper.rs - remapper::Remapper (line 12) ... ok
[INFO] [stdout] test src/lib.rs -  (line 13) ... ok
[INFO] [stdout] test src/optimizer.rs - optimizer::Optimizer::optimize_palette (line 16) ... ok
[INFO] [stdout] test src/remapper.rs - remapper::Remapper (line 22) ... ok
[INFO] [stdout] test src/lib.rs -  (line 32) ... ok
[INFO] [stdout] test src/quantizer.rs - quantizer::Quantizer::optimize (line 196) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "02378675d6a194d53b1e6da69e4382f674defac5cbc927904826848bd8d48a92"`
[INFO] running `"docker" "rm" "-f" "02378675d6a194d53b1e6da69e4382f674defac5cbc927904826848bd8d48a92"`
[INFO] [stdout] 02378675d6a194d53b1e6da69e4382f674defac5cbc927904826848bd8d48a92