Nov 17 09:31:59.417 INFO testing alyssaverkade/neural_network against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 09:31:59.417 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-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 17 09:31:59.835 INFO [stdout] 3d00c960ac5b4215f5def63a1cff55e7bf3f61259f4e810c00d4949c941f7384
Nov 17 09:31:59.840 INFO running `"docker" "start" "-a" "3d00c960ac5b4215f5def63a1cff55e7bf3f61259f4e810c00d4949c941f7384"`
Nov 17 09:32:00.867 INFO [stderr] usermod: no changes
Nov 17 09:32:00.931 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Nov 17 09:32:01.019 INFO [stderr]    Compiling cfg-if v0.1.4
Nov 17 09:32:01.019 INFO [stderr]    Compiling nodrop v0.1.12
Nov 17 09:32:01.019 INFO [stderr]    Compiling lazy_static v1.0.2
Nov 17 09:32:01.019 INFO [stderr]    Compiling memoffset v0.2.1
Nov 17 09:32:01.019 INFO [stderr]    Compiling num-traits v0.2.5
Nov 17 09:32:01.019 INFO [stderr]    Compiling scopeguard v0.3.3
Nov 17 09:32:01.035 INFO [stderr]    Compiling num-integer v0.1.39
Nov 17 09:32:01.035 INFO [stderr]    Compiling rayon-core v1.4.1
Nov 17 09:32:01.423 INFO [stderr]    Compiling unicode-xid v0.1.0
Nov 17 09:32:01.428 INFO [stderr]    Compiling libc v0.2.42
Nov 17 09:32:01.739 INFO [stderr]    Compiling num-iter v0.1.37
Nov 17 09:32:01.739 INFO [stderr]    Compiling rayon v1.0.2
Nov 17 09:32:02.739 INFO [stderr]    Compiling void v1.0.2
Nov 17 09:32:04.727 INFO [stderr]    Compiling adler32 v1.0.3
Nov 17 09:32:04.749 INFO [stderr]    Compiling either v1.5.0
Nov 17 09:32:07.860 INFO [stderr]    Compiling byteorder v1.2.4
Nov 17 09:32:08.591 INFO [stderr]    Compiling serde v1.0.70
Nov 17 09:32:08.755 INFO [stderr]    Compiling lzw v0.10.0
Nov 17 09:32:08.803 INFO [stderr]    Compiling color_quant v1.0.1
Nov 17 09:32:12.012 INFO [stderr]    Compiling bitflags v1.0.3
Nov 17 09:32:12.129 INFO [stderr]    Compiling slog v2.3.2
Nov 17 09:32:12.395 INFO [stderr]    Compiling scoped_threadpool v0.1.9
Nov 17 09:32:12.727 INFO [stderr]    Compiling take_mut v0.2.2
Nov 17 09:32:15.629 INFO [stderr]    Compiling rand_core v0.2.1
Nov 17 09:32:16.829 INFO [stderr]    Compiling crossbeam-utils v0.2.2
Nov 17 09:32:16.871 INFO [stderr]    Compiling arrayvec v0.4.7
Nov 17 09:32:19.065 INFO [stderr]    Compiling proc-macro2 v0.4.9
Nov 17 09:32:19.939 INFO [stderr]    Compiling unreachable v1.0.0
Nov 17 09:32:24.921 INFO [stderr]    Compiling inflate v0.4.3
Nov 17 09:32:25.191 INFO [stderr]    Compiling num_cpus v1.8.0
Nov 17 09:32:25.315 INFO [stderr]    Compiling time v0.1.40
Nov 17 09:32:25.860 INFO [stderr]    Compiling isatty v0.1.8
Nov 17 09:32:25.887 INFO [stderr]    Compiling memmap v0.6.2
Nov 17 09:32:26.061 INFO [stderr]    Compiling deflate v0.7.18
Nov 17 09:32:28.663 INFO [stderr]    Compiling term v0.5.1
Nov 17 09:33:12.171 INFO [stderr]    Compiling gif v0.10.0
Nov 17 09:33:12.268 INFO [stderr]    Compiling thread_local v0.3.5
Nov 17 09:33:12.473 INFO [stderr]    Compiling rand v0.5.4
Nov 17 09:33:12.484 INFO [stderr]    Compiling crossbeam-epoch v0.3.1
Nov 17 09:33:24.061 INFO [stderr]    Compiling slog-async v2.3.0
Nov 17 09:33:24.508 INFO [stderr]    Compiling quote v0.6.4
Nov 17 09:33:34.787 INFO [stderr]    Compiling crossbeam-deque v0.2.0
Nov 17 09:33:49.335 INFO [stderr]    Compiling streaming-stats v0.2.0
Nov 17 09:33:49.887 INFO [stderr]    Compiling syn v0.14.5
Nov 17 09:33:56.523 INFO [stderr]    Compiling num-rational v0.1.42
Nov 17 09:33:56.591 INFO [stderr]    Compiling chrono v0.4.5
Nov 17 09:34:02.335 INFO [stderr]    Compiling png v0.12.0
Nov 17 09:34:20.555 INFO [stderr]    Compiling slog-term v2.4.0
Nov 17 09:34:29.906 INFO [stderr]    Compiling jpeg-decoder v0.1.15
Nov 17 09:34:33.355 INFO [stderr]    Compiling bincode v1.0.1
Nov 17 09:34:53.619 INFO [stderr]    Compiling num-derive v0.2.2
Nov 17 09:35:03.019 INFO [stderr]    Compiling image v0.19.0
Nov 17 09:36:07.419 INFO [stderr]    Compiling neural_net v0.1.0 (/source)
Nov 17 09:36:09.515 INFO [stderr] error[E0599]: no method named `exact_chunks` found for type `&[u8]` in the current scope
Nov 17 09:36:09.515 INFO [stderr]   --> src/image_reader.rs:27:39
Nov 17 09:36:09.515 INFO [stderr]    |
Nov 17 09:36:09.515 INFO [stderr] 27 |         for triplet in rgb.as_slice().exact_chunks(3) {
Nov 17 09:36:09.515 INFO [stderr]    |                                       ^^^^^^^^^^^^
Nov 17 09:36:09.515 INFO [stderr] 
Nov 17 09:36:09.523 INFO [stderr] error: aborting due to previous error
Nov 17 09:36:09.523 INFO [stderr] 
Nov 17 09:36:09.523 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Nov 17 09:36:09.544 INFO [stderr] error: Could not compile `neural_net`.
Nov 17 09:36:09.544 INFO [stderr] 
Nov 17 09:36:09.544 INFO [stderr] To learn more, run the command again with --verbose.
Nov 17 09:36:09.546 INFO [stderr] su: No module specific data is present
Nov 17 09:36:09.892 INFO running `"docker" "inspect" "3d00c960ac5b4215f5def63a1cff55e7bf3f61259f4e810c00d4949c941f7384"`
Nov 17 09:36:09.994 INFO running `"docker" "rm" "-f" "3d00c960ac5b4215f5def63a1cff55e7bf3f61259f4e810c00d4949c941f7384"`
Nov 17 09:36:10.104 INFO [stdout] 3d00c960ac5b4215f5def63a1cff55e7bf3f61259f4e810c00d4949c941f7384