[INFO] updating cached repository https://github.com/sthomer/predict
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/sthomer/predict
[INFO] [stderr]    151fa9b..093af98  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 093af989298761ef8d7868af974d79be3cb0fff6
[INFO] checking sthomer/predict against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsthomer%2Fpredict" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sthomer/predict on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sthomer/predict
[INFO] finished tweaking git repo https://github.com/sthomer/predict
[INFO] tweaked toml for git repo https://github.com/sthomer/predict written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/sthomer/predict already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "+e922e6444795ab795fab1943288aee3d543699b8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5fae2da1199478f3807c47b4b9ddf0d1e4541ecd262077f5ad191fdc0ce31bd5
[INFO] running `"docker" "start" "-a" "5fae2da1199478f3807c47b4b9ddf0d1e4541ecd262077f5ad191fdc0ce31bd5"`
[INFO] [stderr]     Checking directories v0.10.0
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]     Checking itertools v0.8.1
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking euclid v0.20.5
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking itertools-num v0.1.3
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[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking ndarray v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking indicatif v0.13.0
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking image v0.22.3
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[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking font-kit v0.4.0
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[INFO] [stderr]     Checking structopt v0.3.5
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[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking confy v0.3.1
[INFO] [stderr]     Checking predict v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::concept_symbol::Concept`
[INFO] [stderr]  --> src/abstraction.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::concept_symbol::Concept;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::complex::Complex64`
[INFO] [stderr]  --> src/categorization.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num::complex::Complex64;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Signal`
[INFO] [stderr]  --> src/dimension.rs:1:33
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::spectrum::{Spectrum, Signal, Vector};
[INFO] [stderr]   |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BigramModel`
[INFO] [stderr]  --> src/segmentation.rs:2:27
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::markov_model::{BigramModel, UnigramModel};
[INFO] [stderr]   |                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::dimension::Dimension`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use crate::dimension::Dimension;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::concept_symbol::Concept`
[INFO] [stderr]  --> src/abstraction.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::concept_symbol::Concept;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/abstraction.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::complex::Complex64`
[INFO] [stderr]  --> src/categorization.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num::complex::Complex64;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/categorization.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/concept_symbol.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/config.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]  --> src/deserialization.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     use super::*;
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Signal`
[INFO] [stderr]  --> src/dimension.rs:1:33
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::spectrum::{Spectrum, Signal, Vector};
[INFO] [stderr]   |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/dimension.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/loader.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/markov_model.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/perception.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BigramModel`
[INFO] [stderr]  --> src/segmentation.rs:2:27
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::markov_model::{BigramModel, UnigramModel};
[INFO] [stderr]   |                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/segmentation.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]  --> src/serialization.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     use super::*;
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]    --> src/visualization.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |     use std::error::Error;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::dimension::Dimension`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use crate::dimension::Dimension;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/visualization.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frequency_signal`
[INFO] [stderr]   --> src/lib.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let frequency_signal = fourier::fft(&complex_signal);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_frequency_signal`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dimensions`
[INFO] [stderr]   --> src/lib.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let dimensions = perception::process(&config, stft);
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_dimensions`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/config.rs:35:16
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn new(args: &[String]) -> Result<Config, &'static str> {
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frequency_signal`
[INFO] [stderr]   --> src/lib.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let frequency_signal = fourier::fft(&complex_signal);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_frequency_signal`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dimensions`
[INFO] [stderr]   --> src/lib.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let dimensions = perception::process(&config, stft);
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_dimensions`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/config.rs:35:16
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn new(args: &[String]) -> Result<Config, &'static str> {
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/main.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let result = predict::run(config);
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/main.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let result = predict::run(config);
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `"docker" "inspect" "5fae2da1199478f3807c47b4b9ddf0d1e4541ecd262077f5ad191fdc0ce31bd5"`
[INFO] running `"docker" "rm" "-f" "5fae2da1199478f3807c47b4b9ddf0d1e4541ecd262077f5ad191fdc0ce31bd5"`
[INFO] [stdout] 5fae2da1199478f3807c47b4b9ddf0d1e4541ecd262077f5ad191fdc0ce31bd5