Dec 19 20:36:11.273 INFO checking alyssaverkade/neural_network against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:36:11.273 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/alyssaverkade/neural_network:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:36:11.664 INFO [stdout] 5686addc8ee383ac1c1ac98f052dbbb840ca3f1be5ac09ae576b9a4f79d80dde
Dec 19 20:36:11.664 INFO running `"docker" "start" "-a" "5686addc8ee383ac1c1ac98f052dbbb840ca3f1be5ac09ae576b9a4f79d80dde"`
Dec 19 20:36:12.740 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 19 20:36:12.864 INFO [stderr]     Checking nodrop v0.1.12
Dec 19 20:36:12.864 INFO [stderr]     Checking cfg-if v0.1.4
Dec 19 20:36:12.864 INFO [stderr]     Checking memoffset v0.2.1
Dec 19 20:36:12.864 INFO [stderr]    Compiling num-traits v0.2.5
Dec 19 20:36:12.864 INFO [stderr]     Checking lazy_static v1.0.2
Dec 19 20:36:12.864 INFO [stderr]     Checking scopeguard v0.3.3
Dec 19 20:36:12.864 INFO [stderr]    Compiling rayon-core v1.4.1
Dec 19 20:36:12.864 INFO [stderr]    Compiling num-integer v0.1.39
Dec 19 20:36:13.287 INFO [stderr]    Compiling unicode-xid v0.1.0
Dec 19 20:36:13.496 INFO [stderr]     Checking libc v0.2.42
Dec 19 20:36:13.549 INFO [stderr]    Compiling rayon v1.0.2
Dec 19 20:36:13.561 INFO [stderr]    Compiling num-iter v0.1.37
Dec 19 20:36:13.688 INFO [stderr]     Checking either v1.5.0
Dec 19 20:36:13.792 INFO [stderr]     Checking byteorder v1.2.4
Dec 19 20:36:18.014 INFO [stderr]     Checking void v1.0.2
Dec 19 20:36:19.544 INFO [stderr]     Checking adler32 v1.0.3
Dec 19 20:36:19.545 INFO [stderr]    Compiling serde v1.0.70
Dec 19 20:36:19.560 INFO [stderr]     Checking color_quant v1.0.1
Dec 19 20:36:19.571 INFO [stderr]     Checking bitflags v1.0.3
Dec 19 20:36:19.585 INFO [stderr]     Checking lzw v0.10.0
Dec 19 20:36:20.388 INFO [stderr]     Checking rand_core v0.2.1
Dec 19 20:36:20.464 INFO [stderr]     Checking take_mut v0.2.2
Dec 19 20:36:20.464 INFO [stderr]     Checking slog v2.3.2
Dec 19 20:36:21.012 INFO [stderr]     Checking scoped_threadpool v0.1.9
Dec 19 20:36:21.060 INFO [stderr]     Checking crossbeam-utils v0.2.2
Dec 19 20:36:22.412 INFO [stderr]     Checking arrayvec v0.4.7
Dec 19 20:36:22.432 INFO [stderr]    Compiling proc-macro2 v0.4.9
Dec 19 20:36:22.812 INFO [stderr]     Checking unreachable v1.0.0
Dec 19 20:36:22.816 INFO [stderr]     Checking term v0.5.1
Dec 19 20:36:23.356 INFO [stderr]     Checking num_cpus v1.8.0
Dec 19 20:36:23.368 INFO [stderr]     Checking time v0.1.40
Dec 19 20:36:23.624 INFO [stderr]     Checking isatty v0.1.8
Dec 19 20:36:25.096 INFO [stderr]     Checking memmap v0.6.2
Dec 19 20:36:25.136 INFO [stderr]     Checking inflate v0.4.3
Dec 19 20:36:25.136 INFO [stderr]     Checking deflate v0.7.18
Dec 19 20:36:25.152 INFO [stderr]     Checking gif v0.10.0
Dec 19 20:36:26.444 INFO [stderr]     Checking rand v0.5.4
Dec 19 20:36:28.812 INFO [stderr]     Checking thread_local v0.3.5
Dec 19 20:36:29.558 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Dec 19 20:36:32.868 INFO [stderr]     Checking slog-async v2.3.0
Dec 19 20:36:33.028 INFO [stderr]     Checking crossbeam-deque v0.2.0
Dec 19 20:36:37.626 INFO [stderr]     Checking streaming-stats v0.2.0
Dec 19 20:36:39.910 INFO [stderr]     Checking num-rational v0.1.42
Dec 19 20:36:39.910 INFO [stderr]     Checking chrono v0.4.5
Dec 19 20:36:43.048 INFO [stderr]     Checking png v0.12.0
Dec 19 20:36:49.248 INFO [stderr]     Checking slog-term v2.4.0
Dec 19 20:36:50.032 INFO [stderr]    Compiling quote v0.6.4
Dec 19 20:36:53.408 INFO [stderr]    Compiling syn v0.14.5
Dec 19 20:36:55.165 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 19 20:37:02.480 INFO [stderr]     Checking bincode v1.0.1
Dec 19 20:37:24.368 INFO [stderr]    Compiling num-derive v0.2.2
Dec 19 20:37:31.346 INFO [stderr]     Checking image v0.19.0
Dec 19 20:37:35.901 INFO [stderr]     Checking neural_net v0.1.0 (/opt/crater/workdir)
Dec 19 20:37:37.152 INFO [stderr] error[E0599]: no method named `exact_chunks` found for type `&[u8]` in the current scope
Dec 19 20:37:37.152 INFO [stderr]   --> src/image_reader.rs:27:39
Dec 19 20:37:37.152 INFO [stderr]    |
Dec 19 20:37:37.152 INFO [stderr] 27 |         for triplet in rgb.as_slice().exact_chunks(3) {
Dec 19 20:37:37.152 INFO [stderr]    |                                       ^^^^^^^^^^^^
Dec 19 20:37:37.152 INFO [stderr] 
Dec 19 20:37:37.164 INFO [stderr] error: aborting due to previous error
Dec 19 20:37:37.164 INFO [stderr] 
Dec 19 20:37:37.164 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 19 20:37:37.176 INFO [stderr] error: Could not compile `neural_net`.
Dec 19 20:37:37.176 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 20:37:37.288 INFO [stderr] error[E0599]: no method named `exact_chunks` found for type `&[u8]` in the current scope
Dec 19 20:37:37.288 INFO [stderr]   --> src/image_reader.rs:27:39
Dec 19 20:37:37.288 INFO [stderr]    |
Dec 19 20:37:37.288 INFO [stderr] 27 |         for triplet in rgb.as_slice().exact_chunks(3) {
Dec 19 20:37:37.288 INFO [stderr]    |                                       ^^^^^^^^^^^^
Dec 19 20:37:37.288 INFO [stderr] 
Dec 19 20:37:37.312 INFO [stderr] error: aborting due to previous error
Dec 19 20:37:37.312 INFO [stderr] 
Dec 19 20:37:37.312 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 19 20:37:37.328 INFO [stderr] error: Could not compile `neural_net`.
Dec 19 20:37:37.328 INFO [stderr] 
Dec 19 20:37:37.328 INFO [stderr] To learn more, run the command again with --verbose.
Dec 19 20:37:38.202 INFO running `"docker" "inspect" "5686addc8ee383ac1c1ac98f052dbbb840ca3f1be5ac09ae576b9a4f79d80dde"`
Dec 19 20:37:38.544 INFO running `"docker" "rm" "-f" "5686addc8ee383ac1c1ac98f052dbbb840ca3f1be5ac09ae576b9a4f79d80dde"`
Dec 19 20:37:38.849 INFO [stdout] 5686addc8ee383ac1c1ac98f052dbbb840ca3f1be5ac09ae576b9a4f79d80dde