[INFO] updating cached repository XeryusTC/image-palette
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/XeryusTC/image-palette
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/XeryusTC/image-palette" "work/ex/beta-1.38-1/sources/1.37.0/gh/XeryusTC/image-palette"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/XeryusTC/image-palette'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/XeryusTC/image-palette" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/XeryusTC/image-palette"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/XeryusTC/image-palette'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a67e27105cbdfcb12a07f7209fb867121d038873
[INFO] sha for GitHub repo XeryusTC/image-palette: a67e27105cbdfcb12a07f7209fb867121d038873
[INFO] validating manifest of XeryusTC/image-palette on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of XeryusTC/image-palette on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing XeryusTC/image-palette
[INFO] finished frobbing XeryusTC/image-palette
[INFO] frobbed toml for XeryusTC/image-palette written to work/ex/beta-1.38-1/sources/1.37.0/gh/XeryusTC/image-palette/Cargo.toml
[INFO] started frobbing XeryusTC/image-palette
[INFO] finished frobbing XeryusTC/image-palette
[INFO] frobbed toml for XeryusTC/image-palette written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/XeryusTC/image-palette/Cargo.toml
[INFO] crate XeryusTC/image-palette already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing XeryusTC/image-palette against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/XeryusTC/image-palette:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] eafee7b27fd3b4c9dd6bd2a50308adb4568366194674443641ec5a1d49247e35
[INFO] running `"docker" "start" "-a" "eafee7b27fd3b4c9dd6bd2a50308adb4568366194674443641ec5a1d49247e35"`
[INFO] [stderr]    Compiling bitflags v1.0.2
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling atty v0.2.9
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling inflate v0.4.2
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling gif v0.10.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.14
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling num-derive v0.2.0
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling theme-palette v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:127:17
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let mut pixel = imgbuf.get_pixel_mut(x, y);
[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 40.52s
[INFO] running `"docker" "inspect" "eafee7b27fd3b4c9dd6bd2a50308adb4568366194674443641ec5a1d49247e35"`
[INFO] running `"docker" "rm" "-f" "eafee7b27fd3b4c9dd6bd2a50308adb4568366194674443641ec5a1d49247e35"`
[INFO] [stdout] eafee7b27fd3b4c9dd6bd2a50308adb4568366194674443641ec5a1d49247e35
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/XeryusTC/image-palette:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4db200f8d6570a918e4a1aaec8a9d8527276c65c95581ce7b99693a3c364e15b
[INFO] running `"docker" "start" "-a" "4db200f8d6570a918e4a1aaec8a9d8527276c65c95581ce7b99693a3c364e15b"`
[INFO] [stderr]    Compiling theme-palette v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:127:17
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let mut pixel = imgbuf.get_pixel_mut(x, y);
[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 0.99s
[INFO] running `"docker" "inspect" "4db200f8d6570a918e4a1aaec8a9d8527276c65c95581ce7b99693a3c364e15b"`
[INFO] running `"docker" "rm" "-f" "4db200f8d6570a918e4a1aaec8a9d8527276c65c95581ce7b99693a3c364e15b"`
[INFO] [stdout] 4db200f8d6570a918e4a1aaec8a9d8527276c65c95581ce7b99693a3c364e15b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/XeryusTC/image-palette:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 9a9d348b5c5f42c60aa3eb1b0481b9f81eb7c69d2099c6f4c10afe24a6b387c7
[INFO] running `"docker" "start" "-a" "9a9d348b5c5f42c60aa3eb1b0481b9f81eb7c69d2099c6f4c10afe24a6b387c7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/theme_palette-24680d1cfcd34937
[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" "9a9d348b5c5f42c60aa3eb1b0481b9f81eb7c69d2099c6f4c10afe24a6b387c7"`
[INFO] running `"docker" "rm" "-f" "9a9d348b5c5f42c60aa3eb1b0481b9f81eb7c69d2099c6f4c10afe24a6b387c7"`
[INFO] [stdout] 9a9d348b5c5f42c60aa3eb1b0481b9f81eb7c69d2099c6f4c10afe24a6b387c7