Nov 28 12:56:40.555 INFO checking Jin-WW/mandelbrot against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 12:56:40.557 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 12:56:41.006 INFO [stdout] 50c68a8e8e333eef9a1dec9455d2fc25ca4208e79ed6280bf4881cc4bc4b8f79
Nov 28 12:56:41.013 INFO running `"docker" "start" "-a" "50c68a8e8e333eef9a1dec9455d2fc25ca4208e79ed6280bf4881cc4bc4b8f79"`
Nov 28 12:56:42.344 INFO [stderr] usermod: no changes
Nov 28 12:56:42.520 INFO [stderr]     Checking num-bigint v0.1.43
Nov 28 12:56:42.520 INFO [stderr]     Checking png v0.7.0
Nov 28 12:56:45.500 INFO [stderr]     Checking num-rational v0.1.42
Nov 28 12:56:46.589 INFO [stderr]     Checking image v0.13.0
Nov 28 12:56:46.589 INFO [stderr]     Checking num v0.1.42
Nov 28 12:56:52.805 INFO [stderr]     Checking mandelbrot v0.1.0 (/source)
Nov 28 12:56:56.156 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 12:56:56.156 INFO [stderr]   --> src/main.rs:16:5
Nov 28 12:56:56.156 INFO [stderr]    |
Nov 28 12:56:56.156 INFO [stderr] 16 |     write_image("output.png", &pixels, bounds);
Nov 28 12:56:56.156 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:56:56.156 INFO [stderr]    |
Nov 28 12:56:56.156 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 12:56:56.156 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 12:56:56.156 INFO [stderr] 
Nov 28 12:56:56.455 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 12:56:56.455 INFO [stderr]   --> src/main.rs:16:5
Nov 28 12:56:56.455 INFO [stderr]    |
Nov 28 12:56:56.455 INFO [stderr] 16 |     write_image("output.png", &pixels, bounds);
Nov 28 12:56:56.455 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:56:56.455 INFO [stderr]    |
Nov 28 12:56:56.455 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 12:56:56.455 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 12:56:56.455 INFO [stderr] 
Nov 28 12:56:56.489 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.10s
Nov 28 12:56:56.494 INFO [stderr] su: No module specific data is present
Nov 28 12:56:57.650 INFO running `"docker" "inspect" "50c68a8e8e333eef9a1dec9455d2fc25ca4208e79ed6280bf4881cc4bc4b8f79"`
Nov 28 12:56:57.990 INFO running `"docker" "rm" "-f" "50c68a8e8e333eef9a1dec9455d2fc25ca4208e79ed6280bf4881cc4bc4b8f79"`
Nov 28 12:56:58.380 INFO [stdout] 50c68a8e8e333eef9a1dec9455d2fc25ca4208e79ed6280bf4881cc4bc4b8f79