Nov 28 12:56:40.205 INFO checking Jin-WW/mandelbrot against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 12:56:40.205 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 12:56:40.644 INFO [stdout] 242f5a5abbb2ed83bfa9b44fd4c9826e1a0917f3f4a51b85552d72371de6ad4d
Nov 28 12:56:40.649 INFO running `"docker" "start" "-a" "242f5a5abbb2ed83bfa9b44fd4c9826e1a0917f3f4a51b85552d72371de6ad4d"`
Nov 28 12:56:41.664 INFO [stderr] usermod: no changes
Nov 28 12:56:41.856 INFO [stderr]     Checking png v0.7.0
Nov 28 12:56:43.396 INFO [stderr]     Checking image v0.13.0
Nov 28 12:56:49.284 INFO [stderr]     Checking mandelbrot v0.1.0 (/source)
Nov 28 12:56:52.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 12:56:52.085 INFO [stderr]   --> src/main.rs:16:5
Nov 28 12:56:52.085 INFO [stderr]    |
Nov 28 12:56:52.086 INFO [stderr] 16 |     write_image("output.png", &pixels, bounds);
Nov 28 12:56:52.086 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:56:52.086 INFO [stderr]    |
Nov 28 12:56:52.087 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 12:56:52.087 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 12:56:52.087 INFO [stderr] 
Nov 28 12:56:52.279 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 12:56:52.279 INFO [stderr]   --> src/main.rs:16:5
Nov 28 12:56:52.279 INFO [stderr]    |
Nov 28 12:56:52.280 INFO [stderr] 16 |     write_image("output.png", &pixels, bounds);
Nov 28 12:56:52.280 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:56:52.280 INFO [stderr]    |
Nov 28 12:56:52.281 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 12:56:52.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 12:56:52.281 INFO [stderr] 
Nov 28 12:56:52.306 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.60s
Nov 28 12:56:52.312 INFO [stderr] su: No module specific data is present
Nov 28 12:56:53.044 INFO running `"docker" "inspect" "242f5a5abbb2ed83bfa9b44fd4c9826e1a0917f3f4a51b85552d72371de6ad4d"`
Nov 28 12:56:53.325 INFO running `"docker" "rm" "-f" "242f5a5abbb2ed83bfa9b44fd4c9826e1a0917f3f4a51b85552d72371de6ad4d"`
Nov 28 12:56:53.702 INFO [stdout] 242f5a5abbb2ed83bfa9b44fd4c9826e1a0917f3f4a51b85552d72371de6ad4d