[INFO] cloning repository https://github.com/is8ac/bnn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/is8ac/bnn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis8ac%2Fbnn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis8ac%2Fbnn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd8c6687e6bb5ac800bf5516694323cf9824e1b7
[INFO] building is8ac/bnn against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis8ac%2Fbnn" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/is8ac/bnn on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/is8ac/bnn
[INFO] finished tweaking git repo https://github.com/is8ac/bnn
[INFO] tweaked toml for git repo https://github.com/is8ac/bnn written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/is8ac/bnn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73944b430865fbf3c806a69784efc35df6095a015b7f660458dca28f82230383
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "73944b430865fbf3c806a69784efc35df6095a015b7f660458dca28f82230383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73944b430865fbf3c806a69784efc35df6095a015b7f660458dca28f82230383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73944b430865fbf3c806a69784efc35df6095a015b7f660458dca28f82230383", kill_on_drop: false }`
[INFO] [stdout] 73944b430865fbf3c806a69784efc35df6095a015b7f660458dca28f82230383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a510e3f994d64786bd678d2153abad2ab0cd9385a9db01b79308fab8ed8c576
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0a510e3f994d64786bd678d2153abad2ab0cd9385a9db01b79308fab8ed8c576", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling standback v0.2.14
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand_hc v0.3.0
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rand_distr v0.4.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling bnn v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `bnn::descend`
[INFO] [stdout]  --> src/bin/cifar_conv_perf.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bnn::descend::Descend;
[INFO] [stdout]   |          ^^^^^^^ could not find `descend` in `bnn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bnn::image2d`
[INFO] [stdout]  --> src/bin/cifar_conv_perf.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bnn::image2d::{PixelMap, PixelPack};
[INFO] [stdout]   |          ^^^^^^^ could not find `image2d` in `bnn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bnn::layers`
[INFO] [stdout]  --> src/bin/cifar_conv_perf.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | use bnn::layers::{
[INFO] [stdout]   |          ^^^^^^ could not find `layers` in `bnn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `b32`
[INFO] [stdout]  --> src/bin/cifar_conv_perf.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bnn::bits::{b32, BitPack};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bnn::datasets::cifar`
[INFO] [stdout]  --> src/bin/cifar_conv_perf.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bnn::datasets::cifar;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bnn::unary`
[INFO] [stdout]  --> src/bin/cifar_conv_perf.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use bnn::unary;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]   --> src/bin/cifar_conv_perf.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::env;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]   --> src/bin/cifar_conv_perf.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::iter;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::PathBuf`
[INFO] [stdout]   --> src/bin/cifar_conv_perf.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::path::PathBuf;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stdout]    --> src/bin/cifar_conv_perf.rs:43:149
[INFO] [stdout]     |
[INFO] [stdout] 43  |         let unary_examples: Vec<([[<$input_shape as BitPack<bool>>::T; $image_dim]; $image_dim], usize)> = (0..$n_examples).map(|_| (rng.gen(), rng.gen_range(0, 10)))...
[INFO] [stdout]     |                                                                                                                                                     ^^^^^^^^^ -  -- supplied 2 arguments
[INFO] [stdout]     |                                                                                                                                                     |
[INFO] [stdout]     |                                                                                                                                                     expected 1 argument
[INFO] [stdout] ...
[INFO] [stdout] 105 |     time_loss_deltas!(32, [[(); 32]; 32], [[(); 32]; 32], 7, 2, 15, 1);
[INFO] [stdout]     |     ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.8.3/src/rng.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn gen_range<T, R>(&mut self, range: R) -> T
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bnn::descend`
[INFO] [stdout]  --> src/bin/cifar_conv_descend.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bnn::descend::Descend;
[INFO] [stdout]   |          ^^^^^^^ could not find `descend` in `bnn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bnn::image2d`
[INFO] [stdout]  --> src/bin/cifar_conv_descend.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bnn::image2d::{ImageShape, PixelFold, PixelMap, PixelPack};
[INFO] [stdout]   |          ^^^^^^^ could not find `image2d` in `bnn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `bnn::layers`
[INFO] [stdout]  --> src/bin/cifar_conv_descend.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | use bnn::layers::{FusedConvSegmentedAvgPoolFcMSE, Model};
[INFO] [stdout]   |          ^^^^^^ could not find `layers` in `bnn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]   --> src/bin/cifar_conv_descend.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::iter;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/bin/cifar_conv_descend.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 (c as f32 - mean)
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bnn`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused imports: `b128`, `b64`
[INFO] [stdout]  --> src/bin/seq_demo.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     b128, b32, b64, BitMap, BitPack, BitScaler, PackedIndexSGet, PackedMap, WeightArray,
[INFO] [stdout]   |     ^^^^       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stdout]    --> src/bin/cifar_conv_perf.rs:43:149
[INFO] [stdout]     |
[INFO] [stdout] 43  |         let unary_examples: Vec<([[<$input_shape as BitPack<bool>>::T; $image_dim]; $image_dim], usize)> = (0..$n_examples).map(|_| (rng.gen(), rng.gen_range(0, 10)))...
[INFO] [stdout]     |                                                                                                                                                     ^^^^^^^^^ -  -- supplied 2 arguments
[INFO] [stdout]     |                                                                                                                                                     |
[INFO] [stdout]     |                                                                                                                                                     expected 1 argument
[INFO] [stdout] ...
[INFO] [stdout] 106 |     time_loss_deltas!(32, [[(); 32]; 32], [[(); 32]; 32], 7, 2, 15, 2);
[INFO] [stdout]     |     ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.8.3/src/rng.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn gen_range<T, R>(&mut self, range: R) -> T
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stdout]    --> src/bin/cifar_conv_perf.rs:43:149
[INFO] [stdout]     |
[INFO] [stdout] 43  |         let unary_examples: Vec<([[<$input_shape as BitPack<bool>>::T; $image_dim]; $image_dim], usize)> = (0..$n_examples).map(|_| (rng.gen(), rng.gen_range(0, 10)))...
[INFO] [stdout]     |                                                                                                                                                     ^^^^^^^^^ -  -- supplied 2 arguments
[INFO] [stdout]     |                                                                                                                                                     |
[INFO] [stdout]     |                                                                                                                                                     expected 1 argument
[INFO] [stdout] ...
[INFO] [stdout] 107 |     time_loss_deltas!(32, [[(); 32]; 32], [[(); 32]; 32], 7, 2, 15, 4);
[INFO] [stdout]     |     ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.8.3/src/rng.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn gen_range<T, R>(&mut self, range: R) -> T
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stdout]    --> src/bin/cifar_conv_perf.rs:43:149
[INFO] [stdout]     |
[INFO] [stdout] 43  |         let unary_examples: Vec<([[<$input_shape as BitPack<bool>>::T; $image_dim]; $image_dim], usize)> = (0..$n_examples).map(|_| (rng.gen(), rng.gen_range(0, 10)))...
[INFO] [stdout]     |                                                                                                                                                     ^^^^^^^^^ -  -- supplied 2 arguments
[INFO] [stdout]     |                                                                                                                                                     |
[INFO] [stdout]     |                                                                                                                                                     expected 1 argument
[INFO] [stdout] ...
[INFO] [stdout] 108 |     time_loss_deltas!(32, [[(); 32]; 32], [[(); 32]; 32], 7, 2, 15, 8);
[INFO] [stdout]     |     ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.8.3/src/rng.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn gen_range<T, R>(&mut self, range: R) -> T
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 2 arguments were supplied
[INFO] [stdout]    --> src/bin/cifar_conv_perf.rs:43:149
[INFO] [stdout]     |
[INFO] [stdout] 43  |         let unary_examples: Vec<([[<$input_shape as BitPack<bool>>::T; $image_dim]; $image_dim], usize)> = (0..$n_examples).map(|_| (rng.gen(), rng.gen_range(0, 10)))...
[INFO] [stdout]     |                                                                                                                                                     ^^^^^^^^^ -  -- supplied 2 arguments
[INFO] [stdout]     |                                                                                                                                                     |
[INFO] [stdout]     |                                                                                                                                                     expected 1 argument
[INFO] [stdout] ...
[INFO] [stdout] 109 |     time_loss_deltas!(32, [[(); 32]; 32], [[(); 32]; 32], 7, 2, 15, 16);
[INFO] [stdout]     |     -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand-0.8.3/src/rng.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn gen_range<T, R>(&mut self, range: R) -> T
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/bin/seq_demo.rs:523:27
[INFO] [stdout]     |
[INFO] [stdout] 523 |             .map(|(input, target)| {
[INFO] [stdout]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/bin/seq_demo.rs:503:13
[INFO] [stdout]     |
[INFO] [stdout] 503 |         let start = Instant::now();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `model`
[INFO] [stdout]    --> src/bin/seq_demo.rs:502:9
[INFO] [stdout]     |
[INFO] [stdout] 502 |     let model = ngrams.chunks_exact(BATCH_SIZE).fold(model, |model, slice| {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_model`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bt`
[INFO] [stdout]   --> src/bin/seq_demo.rs:48:35
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 FcIndex::Decoder((bt, bo)) => ao == bo,
[INFO] [stdout]    |                                   ^^ help: if this is intentional, prefix it with an underscore: `_bt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bi`
[INFO] [stdout]   --> src/bin/seq_demo.rs:51:39
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 FcIndex::Encoder((bo, bi)) => ao == bo,
[INFO] [stdout]    |                                       ^^ help: if this is intentional, prefix it with an underscore: `_bi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]    --> src/bin/seq_demo.rs:424:38
[INFO] [stdout]     |
[INFO] [stdout] 424 |                         .filter(|(i, w, _)| !index.collide(i))
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/seq_demo.rs:405:9
[INFO] [stdout]     |
[INFO] [stdout] 405 |         mut self,
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/seq_demo.rs:451:9
[INFO] [stdout]     |
[INFO] [stdout] 451 |     let mut buf_reader = BufReader::new(file);
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `increment_dense_loss_deltas_slow`
[INFO] [stdout]    --> src/bin/seq_demo.rs:253:8
[INFO] [stdout]     |
[INFO] [stdout] 253 |     fn increment_dense_loss_deltas_slow(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/seq_demo.rs:528:9
[INFO] [stdout]     |
[INFO] [stdout] 528 |         dbg!(str::from_utf8(&bytes));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0a510e3f994d64786bd678d2153abad2ab0cd9385a9db01b79308fab8ed8c576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a510e3f994d64786bd678d2153abad2ab0cd9385a9db01b79308fab8ed8c576", kill_on_drop: false }`
[INFO] [stdout] 0a510e3f994d64786bd678d2153abad2ab0cd9385a9db01b79308fab8ed8c576
