Dec 04 09:55:48.888 INFO checking sn99/mandelbrot against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 09:55:48.888 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 09:55:49.419 INFO [stdout] c731b615fdbc31f56a96bfe6c246e4074383b943f8c66d5797ee5081bbc42970
Dec 04 09:55:49.427 INFO running `"docker" "start" "-a" "c731b615fdbc31f56a96bfe6c246e4074383b943f8c66d5797ee5081bbc42970"`
Dec 04 09:55:50.783 INFO [stderr] usermod: no changes
Dec 04 09:55:50.991 INFO [stderr]    Compiling num-bigint v0.2.0
Dec 04 09:55:50.991 INFO [stderr]    Compiling num-rational v0.2.1
Dec 04 09:55:50.999 INFO [stderr]    Compiling num-complex v0.2.1
Dec 04 09:55:50.999 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Dec 04 09:55:50.999 INFO [stderr]     Checking crossbeam-epoch v0.6.1
Dec 04 09:55:51.007 INFO [stderr]    Compiling syn v0.15.15
Dec 04 09:55:52.682 INFO [stderr]     Checking crossbeam-deque v0.2.0
Dec 04 09:55:53.052 INFO [stderr]     Checking crossbeam-deque v0.6.2
Dec 04 09:55:53.054 INFO [stderr]     Checking crossbeam-channel v0.3.2
Dec 04 09:55:55.163 INFO [stderr]     Checking rayon-core v1.4.1
Dec 04 09:55:57.723 INFO [stderr]     Checking crossbeam v0.5.0
Dec 04 09:55:59.243 INFO [stderr]     Checking rayon v1.0.2
Dec 04 09:56:03.024 INFO [stderr]     Checking num v0.2.0
Dec 04 09:56:08.643 INFO [stderr]    Compiling num-derive v0.2.3
Dec 04 09:56:08.731 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 04 09:56:13.448 INFO [stderr]     Checking tiff v0.2.1
Dec 04 09:56:14.183 INFO [stderr]     Checking image v0.20.1
Dec 04 09:56:18.814 INFO [stderr]     Checking mandelbrot v0.1.0 (/source)
Dec 04 09:56:19.683 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:56:19.683 INFO [stderr]    --> src/main.rs:141:9
Dec 04 09:56:19.683 INFO [stderr]     |
Dec 04 09:56:19.683 INFO [stderr] 141 | /         crossbeam::scope(|spawner| {
Dec 04 09:56:19.683 INFO [stderr] 142 | |             for (i, band) in bands.into_iter().enumerate() {
Dec 04 09:56:19.683 INFO [stderr] 143 | |                 let top = rows_per_band * i;
Dec 04 09:56:19.683 INFO [stderr] 144 | |                 let height = band.len() / bounds.0;
Dec 04 09:56:19.683 INFO [stderr] ...   |
Dec 04 09:56:19.683 INFO [stderr] 153 | |             }
Dec 04 09:56:19.683 INFO [stderr] 154 | |         });
Dec 04 09:56:19.683 INFO [stderr]     | |___________^
Dec 04 09:56:19.683 INFO [stderr]     |
Dec 04 09:56:19.683 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 09:56:19.683 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:56:19.683 INFO [stderr] 
Dec 04 09:56:19.787 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 09:56:19.787 INFO [stderr]    --> src/main.rs:141:9
Dec 04 09:56:19.787 INFO [stderr]     |
Dec 04 09:56:19.787 INFO [stderr] 141 | /         crossbeam::scope(|spawner| {
Dec 04 09:56:19.787 INFO [stderr] 142 | |             for (i, band) in bands.into_iter().enumerate() {
Dec 04 09:56:19.787 INFO [stderr] 143 | |                 let top = rows_per_band * i;
Dec 04 09:56:19.787 INFO [stderr] 144 | |                 let height = band.len() / bounds.0;
Dec 04 09:56:19.787 INFO [stderr] ...   |
Dec 04 09:56:19.787 INFO [stderr] 153 | |             }
Dec 04 09:56:19.787 INFO [stderr] 154 | |         });
Dec 04 09:56:19.787 INFO [stderr]     | |___________^
Dec 04 09:56:19.787 INFO [stderr]     |
Dec 04 09:56:19.787 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 09:56:19.787 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 09:56:19.787 INFO [stderr] 
Dec 04 09:56:19.839 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.03s
Dec 04 09:56:19.848 INFO [stderr] su: No module specific data is present
Dec 04 09:56:20.423 INFO running `"docker" "inspect" "c731b615fdbc31f56a96bfe6c246e4074383b943f8c66d5797ee5081bbc42970"`
Dec 04 09:56:20.645 INFO running `"docker" "rm" "-f" "c731b615fdbc31f56a96bfe6c246e4074383b943f8c66d5797ee5081bbc42970"`
Dec 04 09:56:20.903 INFO [stdout] c731b615fdbc31f56a96bfe6c246e4074383b943f8c66d5797ee5081bbc42970