Dec 14 03:04:54.284 INFO testing alyssaverkade/neural_network against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 03:04:54.284 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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"`
Dec 14 03:04:54.904 INFO [stdout] ea354dd775f45bc4857c734f59ec79d374c35d1821d07bd49ff3e5ae6ebd7ba6
Dec 14 03:04:54.906 INFO running `"docker" "start" "-a" "ea354dd775f45bc4857c734f59ec79d374c35d1821d07bd49ff3e5ae6ebd7ba6"`
Dec 14 03:04:56.046 INFO [stderr] usermod: no changes
Dec 14 03:04:56.096 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 14 03:04:56.215 INFO [stderr]    Compiling nodrop v0.1.12
Dec 14 03:04:56.215 INFO [stderr]    Compiling cfg-if v0.1.4
Dec 14 03:04:56.215 INFO [stderr]    Compiling num-traits v0.2.5
Dec 14 03:04:56.215 INFO [stderr]    Compiling memoffset v0.2.1
Dec 14 03:04:56.251 INFO [stderr]    Compiling lazy_static v1.0.2
Dec 14 03:04:56.251 INFO [stderr]    Compiling scopeguard v0.3.3
Dec 14 03:04:56.251 INFO [stderr]    Compiling libc v0.2.42
Dec 14 03:04:56.251 INFO [stderr]    Compiling unicode-xid v0.1.0
Dec 14 03:04:56.643 INFO [stderr]    Compiling rayon-core v1.4.1
Dec 14 03:04:57.008 INFO [stderr]    Compiling num-integer v0.1.39
Dec 14 03:04:57.059 INFO [stderr]    Compiling num-iter v0.1.37
Dec 14 03:04:57.071 INFO [stderr]    Compiling rayon v1.0.2
Dec 14 03:04:57.688 INFO [stderr]    Compiling adler32 v1.0.3
Dec 14 03:04:58.139 INFO [stderr]    Compiling byteorder v1.2.4
Dec 14 03:05:03.859 INFO [stderr]    Compiling either v1.5.0
Dec 14 03:05:03.903 INFO [stderr]    Compiling serde v1.0.70
Dec 14 03:05:03.951 INFO [stderr]    Compiling void v1.0.2
Dec 14 03:05:03.987 INFO [stderr]    Compiling color_quant v1.0.1
Dec 14 03:05:04.163 INFO [stderr]    Compiling lzw v0.10.0
Dec 14 03:05:05.004 INFO [stderr]    Compiling bitflags v1.0.3
Dec 14 03:05:05.225 INFO [stderr]    Compiling slog v2.3.2
Dec 14 03:05:05.267 INFO [stderr]    Compiling take_mut v0.2.2
Dec 14 03:05:05.425 INFO [stderr]    Compiling rand_core v0.2.1
Dec 14 03:05:06.058 INFO [stderr]    Compiling scoped_threadpool v0.1.9
Dec 14 03:05:06.309 INFO [stderr]    Compiling arrayvec v0.4.7
Dec 14 03:05:08.471 INFO [stderr]    Compiling crossbeam-utils v0.2.2
Dec 14 03:05:18.355 INFO [stderr]    Compiling proc-macro2 v0.4.9
Dec 14 03:05:18.376 INFO [stderr]    Compiling term v0.5.1
Dec 14 03:05:18.387 INFO [stderr]    Compiling inflate v0.4.3
Dec 14 03:05:18.398 INFO [stderr]    Compiling deflate v0.7.18
Dec 14 03:05:18.399 INFO [stderr]    Compiling num_cpus v1.8.0
Dec 14 03:05:19.459 INFO [stderr]    Compiling time v0.1.40
Dec 14 03:05:19.516 INFO [stderr]    Compiling isatty v0.1.8
Dec 14 03:05:22.577 INFO [stderr]    Compiling memmap v0.6.2
Dec 14 03:05:31.204 INFO [stderr]    Compiling unreachable v1.0.0
Dec 14 03:05:32.623 INFO [stderr]    Compiling rand v0.5.4
Dec 14 03:05:36.847 INFO [stderr]    Compiling crossbeam-epoch v0.3.1
Dec 14 03:06:04.184 INFO [stderr]    Compiling gif v0.10.0
Dec 14 03:06:04.437 INFO [stderr]    Compiling thread_local v0.3.5
Dec 14 03:06:04.494 INFO [stderr]    Compiling quote v0.6.4
Dec 14 03:06:04.496 INFO [stderr]    Compiling crossbeam-deque v0.2.0
Dec 14 03:06:11.694 INFO [stderr]    Compiling syn v0.14.5
Dec 14 03:06:11.809 INFO [stderr]    Compiling slog-async v2.3.0
Dec 14 03:06:29.735 INFO [stderr]    Compiling streaming-stats v0.2.0
Dec 14 03:06:36.842 INFO [stderr]    Compiling chrono v0.4.5
Dec 14 03:06:36.842 INFO [stderr]    Compiling num-rational v0.1.42
Dec 14 03:06:38.639 INFO [stderr]    Compiling png v0.12.0
Dec 14 03:07:07.675 INFO [stderr]    Compiling jpeg-decoder v0.1.15
Dec 14 03:07:33.423 INFO [stderr]    Compiling slog-term v2.4.0
Dec 14 03:07:33.655 INFO [stderr]    Compiling bincode v1.0.1
Dec 14 03:07:36.611 INFO [stderr]    Compiling num-derive v0.2.2
Dec 14 03:07:46.587 INFO [stderr]    Compiling image v0.19.0
Dec 14 03:08:42.761 INFO [stderr]    Compiling neural_net v0.1.0 (/source)
Dec 14 03:08:44.924 INFO [stderr] error[E0599]: no method named `exact_chunks` found for type `&[u8]` in the current scope
Dec 14 03:08:44.924 INFO [stderr]   --> src/image_reader.rs:27:39
Dec 14 03:08:44.924 INFO [stderr]    |
Dec 14 03:08:44.924 INFO [stderr] 27 |         for triplet in rgb.as_slice().exact_chunks(3) {
Dec 14 03:08:44.924 INFO [stderr]    |                                       ^^^^^^^^^^^^
Dec 14 03:08:44.924 INFO [stderr] 
Dec 14 03:08:44.934 INFO [stderr] error: aborting due to previous error
Dec 14 03:08:44.934 INFO [stderr] 
Dec 14 03:08:44.934 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 14 03:08:44.994 INFO [stderr] error: Could not compile `neural_net`.
Dec 14 03:08:44.994 INFO [stderr] 
Dec 14 03:08:44.994 INFO [stderr] To learn more, run the command again with --verbose.
Dec 14 03:08:44.994 INFO [stderr] su: No module specific data is present
Dec 14 03:08:45.256 INFO running `"docker" "inspect" "ea354dd775f45bc4857c734f59ec79d374c35d1821d07bd49ff3e5ae6ebd7ba6"`
Dec 14 03:08:45.341 INFO running `"docker" "rm" "-f" "ea354dd775f45bc4857c734f59ec79d374c35d1821d07bd49ff3e5ae6ebd7ba6"`
Dec 14 03:08:45.464 INFO [stdout] ea354dd775f45bc4857c734f59ec79d374c35d1821d07bd49ff3e5ae6ebd7ba6