Dec 01 19:45:09.686 INFO documenting alyssaverkade/neural_network against master#147e60c5f89cfa2d3ffc247413956a37582c98e7 for pr-55318-1
Dec 01 19:45:09.686 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-2/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55318-1/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/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 +147e60c5f89cfa2d3ffc247413956a37582c98e7-alt doc --frozen --no-deps --document-private-items" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 19:45:09.925 INFO [stdout] 81205b599947ef694e8a39b66618050680087b8a2e30daa5d8e9cd575954d0cf
Dec 01 19:45:09.928 INFO running `"docker" "start" "-a" "81205b599947ef694e8a39b66618050680087b8a2e30daa5d8e9cd575954d0cf"`
Dec 01 19:45:10.591 INFO [stderr] usermod: no changes
Dec 01 19:45:10.684 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 01 19:45:10.824 INFO [stderr]     Checking cfg-if v0.1.4
Dec 01 19:45:10.832 INFO [stderr]     Checking nodrop v0.1.12
Dec 01 19:45:10.832 INFO [stderr]     Checking memoffset v0.2.1
Dec 01 19:45:10.832 INFO [stderr]     Checking scopeguard v0.3.3
Dec 01 19:45:10.832 INFO [stderr]    Compiling num-traits v0.2.5
Dec 01 19:45:10.844 INFO [stderr]     Checking lazy_static v1.0.2
Dec 01 19:45:10.844 INFO [stderr]     Checking libc v0.2.42
Dec 01 19:45:10.844 INFO [stderr]    Compiling num-integer v0.1.39
Dec 01 19:45:11.220 INFO [stderr]    Compiling rayon-core v1.4.1
Dec 01 19:45:11.236 INFO [stderr]    Compiling unicode-xid v0.1.0
Dec 01 19:45:11.304 INFO [stderr]    Compiling num-iter v0.1.37
Dec 01 19:45:11.531 INFO [stderr]    Compiling rayon v1.0.2
Dec 01 19:45:18.372 INFO [stderr]     Checking either v1.5.0
Dec 01 19:45:18.388 INFO [stderr]     Checking void v1.0.2
Dec 01 19:45:18.389 INFO [stderr]     Checking byteorder v1.2.4
Dec 01 19:45:18.416 INFO [stderr]    Compiling serde v1.0.70
Dec 01 19:45:18.989 INFO [stderr]     Checking adler32 v1.0.3
Dec 01 19:45:18.993 INFO [stderr]     Checking bitflags v1.0.3
Dec 01 19:45:19.298 INFO [stderr]     Checking color_quant v1.0.1
Dec 01 19:45:19.641 INFO [stderr]     Checking lzw v0.10.0
Dec 01 19:45:20.014 INFO [stderr]     Checking slog v2.3.2
Dec 01 19:45:20.082 INFO [stderr]     Checking rand_core v0.2.1
Dec 01 19:45:20.826 INFO [stderr]     Checking scoped_threadpool v0.1.9
Dec 01 19:45:21.678 INFO [stderr]     Checking take_mut v0.2.2
Dec 01 19:45:24.063 INFO [stderr]     Checking crossbeam-utils v0.2.2
Dec 01 19:45:24.070 INFO [stderr]     Checking arrayvec v0.4.7
Dec 01 19:45:24.096 INFO [stderr]    Compiling proc-macro2 v0.4.9
Dec 01 19:45:24.525 INFO [stderr]     Checking unreachable v1.0.0
Dec 01 19:45:25.158 INFO [stderr]     Checking num_cpus v1.8.0
Dec 01 19:45:25.242 INFO [stderr]     Checking time v0.1.40
Dec 01 19:45:26.022 INFO [stderr]     Checking isatty v0.1.8
Dec 01 19:45:26.194 INFO [stderr]     Checking memmap v0.6.2
Dec 01 19:45:27.232 INFO [stderr]     Checking inflate v0.4.3
Dec 01 19:45:27.838 INFO [stderr]     Checking gif v0.10.0
Dec 01 19:45:28.210 INFO [stderr]     Checking rand v0.5.4
Dec 01 19:45:29.597 INFO [stderr]     Checking deflate v0.7.18
Dec 01 19:45:30.179 INFO [stderr]     Checking term v0.5.1
Dec 01 19:45:31.038 INFO [stderr]     Checking thread_local v0.3.5
Dec 01 19:45:33.981 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Dec 01 19:45:35.230 INFO [stderr]     Checking slog-async v2.3.0
Dec 01 19:45:38.236 INFO [stderr]     Checking crossbeam-deque v0.2.0
Dec 01 19:45:49.068 INFO [stderr]     Checking streaming-stats v0.2.0
Dec 01 19:45:53.126 INFO [stderr]     Checking num-rational v0.1.42
Dec 01 19:45:53.127 INFO [stderr]     Checking chrono v0.4.5
Dec 01 19:45:54.962 INFO [stderr]     Checking png v0.12.0
Dec 01 19:46:07.540 INFO [stderr]     Checking slog-term v2.4.0
Dec 01 19:46:11.008 INFO [stderr]    Compiling quote v0.6.4
Dec 01 19:46:11.308 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 01 19:46:16.689 INFO [stderr]    Compiling syn v0.14.5
Dec 01 19:46:20.189 INFO [stderr]     Checking bincode v1.0.1
Dec 01 19:46:48.118 INFO [stderr]    Compiling num-derive v0.2.2
Dec 01 19:46:55.668 INFO [stderr]     Checking image v0.19.0
Dec 01 19:47:00.431 INFO [stderr]  Documenting neural_net v0.1.0 (/source)
Dec 01 19:47:02.000 INFO [stderr] error[E0635]: unknown feature `exact_chunks`
Dec 01 19:47:02.000 INFO [stderr]  --> src/lib.rs:5:5
Dec 01 19:47:02.000 INFO [stderr]   |
Dec 01 19:47:02.000 INFO [stderr] 5 |     exact_chunks
Dec 01 19:47:02.000 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 01 19:47:02.000 INFO [stderr] 
Dec 01 19:47:02.001 INFO [stderr] error: Compilation failed, aborting rustdoc
Dec 01 19:47:02.001 INFO [stderr] 
Dec 01 19:47:02.026 INFO [stderr] error: Could not document `neural_net`.
Dec 01 19:47:02.026 INFO [stderr] 
Dec 01 19:47:02.026 INFO [stderr] Caused by:
Dec 01 19:47:02.026 INFO [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-name neural_net src/lib.rs --color never -o /target/doc --document-private-items -L dependency=/target/debug/deps --extern bincode=/target/debug/deps/libbincode-28de55c3e47bda76.rmeta --extern byteorder=/target/debug/deps/libbyteorder-effed60a00deaafb.rmeta --extern image=/target/debug/deps/libimage-22d2ac0f87db0aeb.rmeta --extern lazy_static=/target/debug/deps/liblazy_static-90aea9d529b2240b.rmeta --extern memmap=/target/debug/deps/libmemmap-5632b9106f9952c2.rmeta --extern rand=/target/debug/deps/librand-aa33c2de6325b7d2.rmeta --extern rayon=/target/debug/deps/librayon-27a872e9218ad17e.rmeta --extern slog=/target/debug/deps/libslog-f549153bcaea8067.rmeta --extern slog_async=/target/debug/deps/libslog_async-4cb2284e511c85a7.rmeta --extern slog_term=/target/debug/deps/libslog_term-fd78becad57aaebf.rmeta --extern stats=/target/debug/deps/libstats-9f15c5fd453c5977.rmeta --cap-lints=forbid` (exit code: 1)
Dec 01 19:47:02.029 INFO [stderr] su: No module specific data is present
Dec 01 19:47:02.257 INFO running `"docker" "inspect" "81205b599947ef694e8a39b66618050680087b8a2e30daa5d8e9cd575954d0cf"`
Dec 01 19:47:02.378 INFO running `"docker" "rm" "-f" "81205b599947ef694e8a39b66618050680087b8a2e30daa5d8e9cd575954d0cf"`
Dec 01 19:47:02.479 INFO [stdout] 81205b599947ef694e8a39b66618050680087b8a2e30daa5d8e9cd575954d0cf