Nov 27 20:10:49.854 INFO checking sn99/mandelbrot against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 20:10:49.854 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 27 20:10:50.345 INFO [stdout] e90df6d20c107859d81f2b5e05a6a07ceecfe546b634b1f880f5fe8b41b6fce4
Nov 27 20:10:50.350 INFO running `"docker" "start" "-a" "e90df6d20c107859d81f2b5e05a6a07ceecfe546b634b1f880f5fe8b41b6fce4"`
Nov 27 20:10:51.873 INFO [stderr] usermod: no changes
Nov 27 20:10:52.128 INFO [stderr]    Compiling num-complex v0.2.1
Nov 27 20:10:52.128 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Nov 27 20:10:52.128 INFO [stderr]     Checking crossbeam-epoch v0.6.1
Nov 27 20:10:52.128 INFO [stderr]    Compiling syn v0.15.15
Nov 27 20:10:52.128 INFO [stderr]     Checking num-bigint v0.2.0
Nov 27 20:10:54.205 INFO [stderr]     Checking crossbeam-channel v0.3.2
Nov 27 20:10:54.208 INFO [stderr]     Checking crossbeam-deque v0.6.2
Nov 27 20:10:54.469 INFO [stderr]     Checking crossbeam-deque v0.2.0
Nov 27 20:10:56.284 INFO [stderr]     Checking rayon-core v1.4.1
Nov 27 20:10:58.381 INFO [stderr]     Checking crossbeam v0.5.0
Nov 27 20:10:58.607 INFO [stderr]     Checking rayon v1.0.2
Nov 27 20:10:59.900 INFO [stderr]     Checking num-rational v0.2.1
Nov 27 20:11:02.040 INFO [stderr]     Checking num v0.2.0
Nov 27 20:11:05.240 INFO [stderr]     Checking jpeg-decoder v0.1.15
Nov 27 20:11:08.866 INFO [stderr]    Compiling num-derive v0.2.3
Nov 27 20:11:14.625 INFO [stderr]     Checking tiff v0.2.1
Nov 27 20:11:15.314 INFO [stderr]     Checking image v0.20.1
Nov 27 20:11:20.433 INFO [stderr]     Checking mandelbrot v0.1.0 (/source)
Nov 27 20:11:21.696 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:11:21.696 INFO [stderr]    --> src/main.rs:141:9
Nov 27 20:11:21.696 INFO [stderr]     |
Nov 27 20:11:21.696 INFO [stderr] 141 | /         crossbeam::scope(|spawner| {
Nov 27 20:11:21.696 INFO [stderr] 142 | |             for (i, band) in bands.into_iter().enumerate() {
Nov 27 20:11:21.696 INFO [stderr] 143 | |                 let top = rows_per_band * i;
Nov 27 20:11:21.696 INFO [stderr] 144 | |                 let height = band.len() / bounds.0;
Nov 27 20:11:21.696 INFO [stderr] ...   |
Nov 27 20:11:21.696 INFO [stderr] 153 | |             }
Nov 27 20:11:21.696 INFO [stderr] 154 | |         });
Nov 27 20:11:21.696 INFO [stderr]     | |___________^
Nov 27 20:11:21.696 INFO [stderr]     |
Nov 27 20:11:21.696 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 27 20:11:21.696 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:11:21.696 INFO [stderr] 
Nov 27 20:11:21.948 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 20:11:21.948 INFO [stderr]    --> src/main.rs:141:9
Nov 27 20:11:21.948 INFO [stderr]     |
Nov 27 20:11:21.948 INFO [stderr] 141 | /         crossbeam::scope(|spawner| {
Nov 27 20:11:21.948 INFO [stderr] 142 | |             for (i, band) in bands.into_iter().enumerate() {
Nov 27 20:11:21.948 INFO [stderr] 143 | |                 let top = rows_per_band * i;
Nov 27 20:11:21.948 INFO [stderr] 144 | |                 let height = band.len() / bounds.0;
Nov 27 20:11:21.949 INFO [stderr] ...   |
Nov 27 20:11:21.949 INFO [stderr] 153 | |             }
Nov 27 20:11:21.949 INFO [stderr] 154 | |         });
Nov 27 20:11:21.949 INFO [stderr]     | |___________^
Nov 27 20:11:21.949 INFO [stderr]     |
Nov 27 20:11:21.949 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 27 20:11:21.949 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 20:11:21.949 INFO [stderr] 
Nov 27 20:11:21.981 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.08s
Nov 27 20:11:21.982 INFO [stderr] su: No module specific data is present
Nov 27 20:11:22.500 INFO running `"docker" "inspect" "e90df6d20c107859d81f2b5e05a6a07ceecfe546b634b1f880f5fe8b41b6fce4"`
Nov 27 20:11:22.818 INFO running `"docker" "rm" "-f" "e90df6d20c107859d81f2b5e05a6a07ceecfe546b634b1f880f5fe8b41b6fce4"`
Nov 27 20:11:23.043 INFO [stdout] e90df6d20c107859d81f2b5e05a6a07ceecfe546b634b1f880f5fe8b41b6fce4