[INFO] cloning repository https://github.com/k0nserv/rust-nn
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k0nserv/rust-nn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk0nserv%2Frust-nn"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk0nserv%2Frust-nn'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0f5f38def009757c52688f9022f44c0a99e776af
[INFO] testing k0nserv/rust-nn against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk0nserv%2Frust-nn" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k0nserv/rust-nn on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/k0nserv/rust-nn
[INFO] finished tweaking git repo https://github.com/k0nserv/rust-nn
[INFO] tweaked toml for git repo https://github.com/k0nserv/rust-nn written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/k0nserv/rust-nn already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cbb42340b417cdf44b156a6fbb9c3124b25638de4b6768a134c276de8783b96b
[INFO] running `"docker" "start" "-a" "cbb42340b417cdf44b156a6fbb9c3124b25638de4b6768a134c276de8783b96b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]    Compiling quote v0.6.4
[INFO] [stderr]    Compiling syn v0.14.5
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling rand v0.5.3
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]    Compiling csv v1.0.0
[INFO] [stderr]    Compiling rust-nn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::fmt;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:43:33
[INFO] [stderr]     |
[INFO] [stderr] 43  |               fn apply(&self, f: &Fn(f32) -> f32) -> Self {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |           impl IndexMut<(usize)> for $name {
[INFO] [stderr]     |                         ^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:43:33
[INFO] [stderr]     |
[INFO] [stderr] 43  |               fn apply(&self, f: &Fn(f32) -> f32) -> Self {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |           impl IndexMut<(usize)> for $name {
[INFO] [stderr]     |                         ^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:43:33
[INFO] [stderr]     |
[INFO] [stderr] 43  |               fn apply(&self, f: &Fn(f32) -> f32) -> Self {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |           impl IndexMut<(usize)> for $name {
[INFO] [stderr]     |                         ^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:43:33
[INFO] [stderr]     |
[INFO] [stderr] 43  |               fn apply(&self, f: &Fn(f32) -> f32) -> Self {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |           impl IndexMut<(usize)> for $name {
[INFO] [stderr]     |                         ^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:43:33
[INFO] [stderr]     |
[INFO] [stderr] 43  |               fn apply(&self, f: &Fn(f32) -> f32) -> Self {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |           impl IndexMut<(usize)> for $name {
[INFO] [stderr]     |                         ^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:43:33
[INFO] [stderr]     |
[INFO] [stderr] 43  |               fn apply(&self, f: &Fn(f32) -> f32) -> Self {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |           impl IndexMut<(usize)> for $name {
[INFO] [stderr]     |                         ^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:43:33
[INFO] [stderr]     |
[INFO] [stderr] 43  |               fn apply(&self, f: &Fn(f32) -> f32) -> Self {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |           impl IndexMut<(usize)> for $name {
[INFO] [stderr]     |                         ^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:43:33
[INFO] [stderr]     |
[INFO] [stderr] 43  |               fn apply(&self, f: &Fn(f32) -> f32) -> Self {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |           impl IndexMut<(usize)> for $name {
[INFO] [stderr]     |                         ^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:43:33
[INFO] [stderr]     |
[INFO] [stderr] 43  |               fn apply(&self, f: &Fn(f32) -> f32) -> Self {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |           impl IndexMut<(usize)> for $name {
[INFO] [stderr]     |                         ^^^^^^^ help: remove these parentheses
[INFO] [stderr] ...
[INFO] [stderr] 417 | / network!{
[INFO] [stderr] 418 | |     name: my_network,
[INFO] [stderr] 419 | |     input: {
[INFO] [stderr] 420 | |         nodes: 4,
[INFO] [stderr] ...   |
[INFO] [stderr] 428 | |     }
[INFO] [stderr] 429 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:450:44
[INFO] [stderr]     |
[INFO] [stderr] 450 | fn read_data() -> Result<Vec<Example>, Box<Error>> {
[INFO] [stderr]     |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:482:29
[INFO] [stderr]     |
[INFO] [stderr] 482 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `get_value` as mutable, as it is not declared as mutable
[INFO] [stderr]    --> src/main.rs:469:67
[INFO] [stderr]     |
[INFO] [stderr] 467 | fn normalize_by<T, F>(values: &mut [T], get_value: F) where F: FnMut(&mut T) -> &mut f32, {
[INFO] [stderr]     |                                         --------- help: consider changing this to be mutable: `mut get_value`
[INFO] [stderr] 468 |     let max = {
[INFO] [stderr] 469 |         get_value(values.iter_mut().max_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                                                                   ^^^^^^^^^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `***a` as mutable, as it is behind a `&` reference
[INFO] [stderr]    --> src/main.rs:469:77
[INFO] [stderr]     |
[INFO] [stderr] 469 |         get_value(values.iter_mut().max_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                                                                             ^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `get_value` as mutable, as it is not declared as mutable
[INFO] [stderr]    --> src/main.rs:469:93
[INFO] [stderr]     |
[INFO] [stderr] 467 | fn normalize_by<T, F>(values: &mut [T], get_value: F) where F: FnMut(&mut T) -> &mut f32, {
[INFO] [stderr]     |                                         --------- help: consider changing this to be mutable: `mut get_value`
[INFO] [stderr] 468 |     let max = {
[INFO] [stderr] 469 |         get_value(values.iter_mut().max_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                                                                                             ^^^^^^^^^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `***b` as mutable, as it is behind a `&` reference
[INFO] [stderr]    --> src/main.rs:469:103
[INFO] [stderr]     |
[INFO] [stderr] 469 |         get_value(values.iter_mut().max_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                                                                                                       ^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `get_value` as mutable, as it is not declared as mutable
[INFO] [stderr]    --> src/main.rs:472:67
[INFO] [stderr]     |
[INFO] [stderr] 467 | fn normalize_by<T, F>(values: &mut [T], get_value: F) where F: FnMut(&mut T) -> &mut f32, {
[INFO] [stderr]     |                                         --------- help: consider changing this to be mutable: `mut get_value`
[INFO] [stderr] ...
[INFO] [stderr] 472 |         get_value(values.iter_mut().min_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                                                                   ^^^^^^^^^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `***a` as mutable, as it is behind a `&` reference
[INFO] [stderr]    --> src/main.rs:472:77
[INFO] [stderr]     |
[INFO] [stderr] 472 |         get_value(values.iter_mut().min_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                                                                             ^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `get_value` as mutable, as it is not declared as mutable
[INFO] [stderr]    --> src/main.rs:472:93
[INFO] [stderr]     |
[INFO] [stderr] 467 | fn normalize_by<T, F>(values: &mut [T], get_value: F) where F: FnMut(&mut T) -> &mut f32, {
[INFO] [stderr]     |                                         --------- help: consider changing this to be mutable: `mut get_value`
[INFO] [stderr] ...
[INFO] [stderr] 472 |         get_value(values.iter_mut().min_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                                                                                             ^^^^^^^^^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `***b` as mutable, as it is behind a `&` reference
[INFO] [stderr]    --> src/main.rs:472:103
[INFO] [stderr]     |
[INFO] [stderr] 472 |         get_value(values.iter_mut().min_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                                                                                                       ^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `get_value` as mutable, as it is not declared as mutable
[INFO] [stderr]    --> src/main.rs:476:21
[INFO] [stderr]     |
[INFO] [stderr] 467 | fn normalize_by<T, F>(values: &mut [T], get_value: F) where F: FnMut(&mut T) -> &mut f32, {
[INFO] [stderr]     |                                         --------- help: consider changing this to be mutable: `mut get_value`
[INFO] [stderr] ...
[INFO] [stderr] 476 |         let value = get_value(a);
[INFO] [stderr]     |                     ^^^^^^^^^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `get_value` as mutable, as it is not declared as mutable
[INFO] [stderr]    --> src/main.rs:469:9
[INFO] [stderr]     |
[INFO] [stderr] 467 | fn normalize_by<T, F>(values: &mut [T], get_value: F) where F: FnMut(&mut T) -> &mut f32, {
[INFO] [stderr]     |                                         --------- help: consider changing this to be mutable: `mut get_value`
[INFO] [stderr] 468 |     let max = {
[INFO] [stderr] 469 |         get_value(values.iter_mut().max_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |         ^^^^^^^^^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0500]: closure requires unique access to `get_value` but it is already borrowed
[INFO] [stderr]    --> src/main.rs:469:44
[INFO] [stderr]     |
[INFO] [stderr] 469 |         get_value(values.iter_mut().max_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |         ---------                          ^^^^^^^^^^^^^^^^^^^^^^ --------- second borrow occurs due to use of `get_value` in closure
[INFO] [stderr]     |         |                                  |
[INFO] [stderr]     |         |                                  closure construction occurs here
[INFO] [stderr]     |         borrow occurs here
[INFO] [stderr]     |         first borrow later used by call
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `get_value` as mutable, as it is not declared as mutable
[INFO] [stderr]    --> src/main.rs:472:9
[INFO] [stderr]     |
[INFO] [stderr] 467 | fn normalize_by<T, F>(values: &mut [T], get_value: F) where F: FnMut(&mut T) -> &mut f32, {
[INFO] [stderr]     |                                         --------- help: consider changing this to be mutable: `mut get_value`
[INFO] [stderr] ...
[INFO] [stderr] 472 |         get_value(values.iter_mut().min_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |         ^^^^^^^^^ cannot borrow as mutable
[INFO] [stderr] 
[INFO] [stderr] error[E0499]: cannot borrow `*values` as mutable more than once at a time
[INFO] [stderr]    --> src/main.rs:472:19
[INFO] [stderr]     |
[INFO] [stderr] 469 |         get_value(values.iter_mut().max_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                   ------ first mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 472 |         get_value(values.iter_mut().min_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                   ^^^^^^ second mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 477 |         *value = (*value - *min) / (*max - *min);
[INFO] [stderr]     |                                      --- first borrow later captured here by closure
[INFO] [stderr] 
[INFO] [stderr] error[E0500]: closure requires unique access to `get_value` but it is already borrowed
[INFO] [stderr]    --> src/main.rs:472:44
[INFO] [stderr]     |
[INFO] [stderr] 472 |         get_value(values.iter_mut().min_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |         ---------                          ^^^^^^^^^^^^^^^^^^^^^^ --------- second borrow occurs due to use of `get_value` in closure
[INFO] [stderr]     |         |                                  |
[INFO] [stderr]     |         |                                  closure construction occurs here
[INFO] [stderr]     |         borrow occurs here
[INFO] [stderr]     |         first borrow later used by call
[INFO] [stderr] 
[INFO] [stderr] error[E0499]: cannot borrow `*values` as mutable more than once at a time
[INFO] [stderr]    --> src/main.rs:475:5
[INFO] [stderr]     |
[INFO] [stderr] 469 |         get_value(values.iter_mut().max_by(|ref mut a, ref mut b| get_value(a).partial_cmp(&get_value(b)).unwrap()).unwrap())
[INFO] [stderr]     |                   ------ first mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 475 |     values.iter_mut().for_each(|a| {
[INFO] [stderr]     |     ^^^^^^ second mutable borrow occurs here
[INFO] [stderr] 476 |         let value = get_value(a);
[INFO] [stderr] 477 |         *value = (*value - *min) / (*max - *min);
[INFO] [stderr]     |                                      --- first borrow later captured here by closure
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 15 previous errors; 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0499, E0500, E0596.
[INFO] [stderr] For more information about an error, try `rustc --explain E0499`.
[INFO] [stderr] error: could not compile `rust-nn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cbb42340b417cdf44b156a6fbb9c3124b25638de4b6768a134c276de8783b96b"`
[INFO] running `"docker" "rm" "-f" "cbb42340b417cdf44b156a6fbb9c3124b25638de4b6768a134c276de8783b96b"`
[INFO] [stdout] cbb42340b417cdf44b156a6fbb9c3124b25638de4b6768a134c276de8783b96b