Dec 04 09:55:47.883 INFO checking sn99/mandelbrot against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 09:55:47.884 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 04 09:55:48.308 INFO [stdout] 9ec0a24ebd54a129bd923276e17437680c6131550740fad4c38843b72d9898f8
Dec 04 09:55:48.317 INFO running `"docker" "start" "-a" "9ec0a24ebd54a129bd923276e17437680c6131550740fad4c38843b72d9898f8"`
Dec 04 09:55:49.583 INFO [stderr] usermod: no changes
Dec 04 09:55:49.735 INFO [stderr]     Checking num-complex v0.2.1
Dec 04 09:55:49.735 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Dec 04 09:55:49.735 INFO [stderr]     Checking crossbeam-epoch v0.6.1
Dec 04 09:55:49.735 INFO [stderr]    Compiling syn v0.15.15
Dec 04 09:55:49.735 INFO [stderr]     Checking num-bigint v0.2.0
Dec 04 09:55:50.879 INFO [stderr]     Checking crossbeam-deque v0.2.0
Dec 04 09:55:51.131 INFO [stderr]     Checking crossbeam-channel v0.3.2
Dec 04 09:55:51.131 INFO [stderr]     Checking crossbeam-deque v0.6.2
Dec 04 09:55:51.463 INFO [stderr]     Checking rayon-core v1.4.1
Dec 04 09:55:53.395 INFO [stderr]     Checking num-rational v0.2.1
Dec 04 09:55:54.063 INFO [stderr]     Checking rayon v1.0.2
Dec 04 09:55:55.187 INFO [stderr]     Checking num v0.2.0
Dec 04 09:55:55.193 INFO [stderr]     Checking crossbeam v0.5.0
Dec 04 09:56:03.317 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 04 09:56:04.605 INFO [stderr]    Compiling num-derive v0.2.3
Dec 04 09:56:10.699 INFO [stderr]     Checking tiff v0.2.1
Dec 04 09:56:11.512 INFO [stderr]     Checking image v0.20.1
Dec 04 09:56:16.527 INFO [stderr]     Checking mandelbrot v0.1.0 (/source)
Dec 04 09:56:17.731 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:56:17.731 INFO [stderr]    --> src/main.rs:141:9
Dec 04 09:56:17.731 INFO [stderr]     |
Dec 04 09:56:17.731 INFO [stderr] 141 | /         crossbeam::scope(|spawner| {
Dec 04 09:56:17.731 INFO [stderr] 142 | |             for (i, band) in bands.into_iter().enumerate() {
Dec 04 09:56:17.731 INFO [stderr] 143 | |                 let top = rows_per_band * i;
Dec 04 09:56:17.731 INFO [stderr] 144 | |                 let height = band.len() / bounds.0;
Dec 04 09:56:17.731 INFO [stderr] ...   |
Dec 04 09:56:17.731 INFO [stderr] 153 | |             }
Dec 04 09:56:17.731 INFO [stderr] 154 | |         });
Dec 04 09:56:17.731 INFO [stderr]     | |___________^
Dec 04 09:56:17.731 INFO [stderr]     |
Dec 04 09:56:17.731 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 09:56:17.731 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:56:17.732 INFO [stderr] 
Dec 04 09:56:17.732 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:56:17.732 INFO [stderr]    --> src/main.rs:141:9
Dec 04 09:56:17.732 INFO [stderr]     |
Dec 04 09:56:17.732 INFO [stderr] 141 | /         crossbeam::scope(|spawner| {
Dec 04 09:56:17.732 INFO [stderr] 142 | |             for (i, band) in bands.into_iter().enumerate() {
Dec 04 09:56:17.732 INFO [stderr] 143 | |                 let top = rows_per_band * i;
Dec 04 09:56:17.732 INFO [stderr] 144 | |                 let height = band.len() / bounds.0;
Dec 04 09:56:17.732 INFO [stderr] ...   |
Dec 04 09:56:17.732 INFO [stderr] 153 | |             }
Dec 04 09:56:17.732 INFO [stderr] 154 | |         });
Dec 04 09:56:17.732 INFO [stderr]     | |___________^
Dec 04 09:56:17.732 INFO [stderr]     |
Dec 04 09:56:17.732 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 09:56:17.732 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:56:17.732 INFO [stderr] 
Dec 04 09:56:17.771 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.16s
Dec 04 09:56:17.775 INFO [stderr] su: No module specific data is present
Dec 04 09:56:18.134 INFO running `"docker" "inspect" "9ec0a24ebd54a129bd923276e17437680c6131550740fad4c38843b72d9898f8"`
Dec 04 09:56:18.290 INFO running `"docker" "rm" "-f" "9ec0a24ebd54a129bd923276e17437680c6131550740fad4c38843b72d9898f8"`
Dec 04 09:56:18.391 INFO [stdout] 9ec0a24ebd54a129bd923276e17437680c6131550740fad4c38843b72d9898f8