[INFO] updating cached repository h3nnn4n/Creative-coding.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/h3nnn4n/Creative-coding.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/h3nnn4n/Creative-coding.rs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/h3nnn4n/Creative-coding.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/h3nnn4n/Creative-coding.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/h3nnn4n/Creative-coding.rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/h3nnn4n/Creative-coding.rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/h3nnn4n/Creative-coding.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 81daa19a5a19c0568c7d2756b425f9259e00ec48
[INFO] sha for GitHub repo h3nnn4n/Creative-coding.rs: 81daa19a5a19c0568c7d2756b425f9259e00ec48
[INFO] validating manifest of h3nnn4n/Creative-coding.rs on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of h3nnn4n/Creative-coding.rs on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing h3nnn4n/Creative-coding.rs
[INFO] finished frobbing h3nnn4n/Creative-coding.rs
[INFO] frobbed toml for h3nnn4n/Creative-coding.rs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/h3nnn4n/Creative-coding.rs/Cargo.toml
[INFO] started frobbing h3nnn4n/Creative-coding.rs
[INFO] finished frobbing h3nnn4n/Creative-coding.rs
[INFO] frobbed toml for h3nnn4n/Creative-coding.rs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/h3nnn4n/Creative-coding.rs/Cargo.toml
[INFO] crate h3nnn4n/Creative-coding.rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking h3nnn4n/Creative-coding.rs against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/h3nnn4n/Creative-coding.rs:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 073980bbddc66686f8d556bd08334d2987930a5d49702423fff7145e550c561b
[INFO] running `"docker" "start" "-a" "073980bbddc66686f8d556bd08334d2987930a5d49702423fff7145e550c561b"`
[INFO] [stderr]    Compiling cairo-rs v0.6.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.8.0
[INFO] [stderr]     Checking glib-sys v0.8.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking random_color v0.4.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking gobject-sys v0.8.0
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking glib v0.7.1
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking coord v0.11.0
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking creative_coding_rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Color`, `Luminosity`, `RandomColor`
[INFO] [stderr]  --> src/main.rs:6:20
[INFO] [stderr]   |
[INFO] [stderr] 6 | use random_color::{Color, Luminosity, RandomColor};
[INFO] [stderr]   |                    ^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Color`, `Luminosity`, `RandomColor`
[INFO] [stderr]  --> src/main.rs:6:20
[INFO] [stderr]   |
[INFO] [stderr] 6 | use random_color::{Color, Luminosity, RandomColor};
[INFO] [stderr]   |                    ^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rgb_array_to_tuple`
[INFO] [stderr]  --> src/color_manager.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn rgb_array_to_tuple(color_vector: [u32; 3]) -> (f32, f32, f32) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fill`
[INFO] [stderr]   --> src/context_manager.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn fill(&mut self) -> &mut Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `paint`
[INFO] [stderr]   --> src/context_manager.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn paint(&mut self) -> &mut Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_filename`
[INFO] [stderr]    --> src/context_manager.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn set_filename(&mut self, filename: String) -> &mut Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rgb_array_to_tuple`
[INFO] [stderr]  --> src/color_manager.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn rgb_array_to_tuple(color_vector: [u32; 3]) -> (f32, f32, f32) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fill`
[INFO] [stderr]   --> src/context_manager.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn fill(&mut self) -> &mut Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `paint`
[INFO] [stderr]   --> src/context_manager.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn paint(&mut self) -> &mut Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_filename`
[INFO] [stderr]    --> src/context_manager.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn set_filename(&mut self, filename: String) -> &mut Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.83s
[INFO] running `"docker" "inspect" "073980bbddc66686f8d556bd08334d2987930a5d49702423fff7145e550c561b"`
[INFO] running `"docker" "rm" "-f" "073980bbddc66686f8d556bd08334d2987930a5d49702423fff7145e550c561b"`
[INFO] [stdout] 073980bbddc66686f8d556bd08334d2987930a5d49702423fff7145e550c561b