[INFO] crate letter-avatar 0.1.1 is already in cache
[INFO] extracting crate letter-avatar 0.1.1 into work/ex/clippy-test-run/sources/stable/reg/letter-avatar/0.1.1
[INFO] extracting crate letter-avatar 0.1.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/letter-avatar/0.1.1
[INFO] validating manifest of letter-avatar-0.1.1 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of letter-avatar-0.1.1 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing letter-avatar-0.1.1
[INFO] finished frobbing letter-avatar-0.1.1
[INFO] frobbed toml for letter-avatar-0.1.1 written to work/ex/clippy-test-run/sources/stable/reg/letter-avatar/0.1.1/Cargo.toml
[INFO] started frobbing letter-avatar-0.1.1
[INFO] finished frobbing letter-avatar-0.1.1
[INFO] frobbed toml for letter-avatar-0.1.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/letter-avatar/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting letter-avatar-0.1.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/letter-avatar/0.1.1:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 17801a90340671d174cfc07b62a17b934195168f5d5c9907d827f2bb99e8c097
[INFO] running `"docker" "start" "-a" "17801a90340671d174cfc07b62a17b934195168f5d5c9907d827f2bb99e8c097"`
[INFO] [stderr]    Compiling cairo-rs v0.4.1
[INFO] [stderr]    Compiling pangocairo v0.5.0
[INFO] [stderr]    Compiling glib-sys v0.6.0
[INFO] [stderr]    Compiling gobject-sys v0.6.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.6.0
[INFO] [stderr]    Compiling pango-sys v0.6.0
[INFO] [stderr]    Compiling pangocairo-sys v0.7.0
[INFO] [stderr]     Checking glib v0.5.0
[INFO] [stderr]     Checking pango v0.4.0
[INFO] [stderr]     Checking letter-avatar v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |             bg_c.r as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(bg_c.r)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:161:13
[INFO] [stderr]     |
[INFO] [stderr] 161 |             bg_c.g as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(bg_c.g)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:162:13
[INFO] [stderr]     |
[INFO] [stderr] 162 |             bg_c.b as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(bg_c.b)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f{32, 64}::consts::PI` found. Consider using it directly
[INFO] [stderr]    --> src/lib.rs:166:65
[INFO] [stderr]     |
[INFO] [stderr] 166 |         g.arc(size / 2f64, size / 2f64, size / 2f64, 0.0, 2.0 * 3.14159);
[INFO] [stderr]     |                                                                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |             fg_c.r as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(fg_c.r)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             fg_c.g as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(fg_c.g)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |             fg_c.b as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(fg_c.b)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:201:29
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 g.translate((bx - ox) as f64 / 2., (by - oy) as f64 / 2.);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^ help: try: `f64::from(bx - ox)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:201:52
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 g.translate((bx - ox) as f64 / 2., (by - oy) as f64 / 2.);
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^ help: try: `f64::from(by - oy)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `letter-avatar`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |             bg_c.r as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(bg_c.r)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:161:13
[INFO] [stderr]     |
[INFO] [stderr] 161 |             bg_c.g as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(bg_c.g)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:162:13
[INFO] [stderr]     |
[INFO] [stderr] 162 |             bg_c.b as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(bg_c.b)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f{32, 64}::consts::PI` found. Consider using it directly
[INFO] [stderr]    --> src/lib.rs:166:65
[INFO] [stderr]     |
[INFO] [stderr] 166 |         g.arc(size / 2f64, size / 2f64, size / 2f64, 0.0, 2.0 * 3.14159);
[INFO] [stderr]     |                                                                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |             fg_c.r as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(fg_c.r)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             fg_c.g as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(fg_c.g)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |             fg_c.b as f64 / 256.,
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `f64::from(fg_c.b)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:201:29
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 g.translate((bx - ox) as f64 / 2., (by - oy) as f64 / 2.);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^ help: try: `f64::from(bx - ox)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:201:52
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 g.translate((bx - ox) as f64 / 2., (by - oy) as f64 / 2.);
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^ help: try: `f64::from(by - oy)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `letter-avatar`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "17801a90340671d174cfc07b62a17b934195168f5d5c9907d827f2bb99e8c097"`
[INFO] running `"docker" "rm" "-f" "17801a90340671d174cfc07b62a17b934195168f5d5c9907d827f2bb99e8c097"`
[INFO] [stdout] 17801a90340671d174cfc07b62a17b934195168f5d5c9907d827f2bb99e8c097