[INFO] cloning repository https://github.com/antonin-lfv/rust_first_steps
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/antonin-lfv/rust_first_steps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonin-lfv%2Frust_first_steps", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonin-lfv%2Frust_first_steps'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea236dfde3ca8c89aafae9772911c3073e638ce9
[INFO] checking antonin-lfv/rust_first_steps against master#2c0f4860cc86e2354a55ea04e738848168435c90 for pr-149145
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonin-lfv%2Frust_first_steps" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/antonin-lfv/rust_first_steps
[INFO] finished tweaking git repo https://github.com/antonin-lfv/rust_first_steps
[INFO] tweaked toml for git repo https://github.com/antonin-lfv/rust_first_steps written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/antonin-lfv/rust_first_steps on toolchain 2c0f4860cc86e2354a55ea04e738848168435c90
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c0f4860cc86e2354a55ea04e738848168435c90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/antonin-lfv/rust_first_steps already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c0f4860cc86e2354a55ea04e738848168435c90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array-init-cursor v0.2.1
[INFO] [stderr]   Downloaded openblas-src v0.10.11
[INFO] [stderr]   Downloaded debug_unsafe v0.1.3
[INFO] [stderr]   Downloaded planus v0.3.1
[INFO] [stderr]   Downloaded openblas-build v0.10.11
[INFO] [stderr]   Downloaded polars-arrow-format v0.1.0
[INFO] [stderr]   Downloaded ndarray-csv v0.5.3
[INFO] [stderr]   Downloaded plotly_derive v0.12.1
[INFO] [stderr]   Downloaded polars-schema v0.48.1
[INFO] [stderr]   Downloaded atoi_simd v0.16.1
[INFO] [stderr]   Downloaded rinja_parser v0.3.5
[INFO] [stderr]   Downloaded lax v0.17.0
[INFO] [stderr]   Downloaded basic-toml v0.1.10
[INFO] [stderr]   Downloaded polars-io v0.48.1
[INFO] [stderr]   Downloaded polars-expr v0.48.1
[INFO] [stderr]   Downloaded polars-ops v0.48.1
[INFO] [stderr]   Downloaded ndarray-linalg v0.17.0
[INFO] [stderr]   Downloaded polars-parquet v0.48.1
[INFO] [stderr]   Downloaded polars-lazy v0.48.1
[INFO] [stderr]   Downloaded polars-sql v0.48.1
[INFO] [stderr]   Downloaded object_store v0.12.1
[INFO] [stderr]   Downloaded sqlparser v0.53.0
[INFO] [stderr]   Downloaded argminmax v0.6.3
[INFO] [stderr]   Downloaded polars-stream v0.48.1
[INFO] [stderr]   Downloaded reqwest v0.12.19
[INFO] [stderr]   Downloaded sysinfo v0.33.1
[INFO] [stderr]   Downloaded polars-mem-engine v0.48.1
[INFO] [stderr]   Downloaded chrono-tz v0.10.3
[INFO] [stderr]   Downloaded polars-arrow v0.48.1
[INFO] [stderr]   Downloaded polars-core v0.48.1
[INFO] [stderr]   Downloaded polars-parquet-format v0.1.0
[INFO] [stderr]   Downloaded polars-compute v0.48.1
[INFO] [stderr]   Downloaded polars-plan v0.48.1
[INFO] [stderr]   Downloaded polars-time v0.48.1
[INFO] [stderr]   Downloaded polars-pipe v0.48.1
[INFO] [stderr]   Downloaded fast-float2 v0.2.3
[INFO] [stderr]   Downloaded skiplist v0.5.1
[INFO] [stderr]   Downloaded polars-row v0.48.1
[INFO] [stderr]   Downloaded rinja_derive v0.3.5
[INFO] [stderr]   Downloaded rinja v0.3.5
[INFO] [stderr]   Downloaded fs4 v0.13.1
[INFO] [stderr]   Downloaded streaming-decompression v0.1.2
[INFO] [stderr]   Downloaded chrono-tz-build v0.4.1
[INFO] [stderr]   Downloaded tracing-attributes v0.1.29
[INFO] [stderr]   Downloaded lz4 v1.28.1
[INFO] [stderr]   Downloaded unicode-reverse v1.0.9
[INFO] [stderr]   Downloaded polars v0.48.1
[INFO] [stderr]   Downloaded cauchy v0.4.0
[INFO] [stderr]   Downloaded katexit v0.1.5
[INFO] [stderr]   Downloaded cblas-sys v0.1.4
[INFO] [stderr]   Downloaded ndarray-rand v0.15.0
[INFO] [stderr]   Downloaded recursive-proc-macro-impl v0.1.1
[INFO] [stderr]   Downloaded recursive v0.1.1
[INFO] [stderr]   Downloaded now v0.1.3
[INFO] [stderr]   Downloaded polars-utils v0.48.1
[INFO] [stderr]   Downloaded cc v1.2.26
[INFO] [stderr]   Downloaded polars-error v0.48.1
[INFO] [stderr]   Downloaded serde_ignored v0.1.12
[INFO] [stderr]   Downloaded plotly v0.12.1
[INFO] [stderr]   Downloaded lapack-sys v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+2c0f4860cc86e2354a55ea04e738848168435c90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0e670011bae452bde8057e19ea904bc44442ff69ad0a525d15d0f98a0065fa3
[INFO] running `Command { std: "docker" "start" "-a" "c0e670011bae452bde8057e19ea904bc44442ff69ad0a525d15d0f98a0065fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0e670011bae452bde8057e19ea904bc44442ff69ad0a525d15d0f98a0065fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0e670011bae452bde8057e19ea904bc44442ff69ad0a525d15d0f98a0065fa3", kill_on_drop: false }`
[INFO] [stdout] c0e670011bae452bde8057e19ea904bc44442ff69ad0a525d15d0f98a0065fa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+2c0f4860cc86e2354a55ea04e738848168435c90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cf2053db54f7623bc1a3d2b95931fad31d87ee39089f3ae46f51a4b13f1d9e9
[INFO] running `Command { std: "docker" "start" "-a" "8cf2053db54f7623bc1a3d2b95931fad31d87ee39089f3ae46f51a4b13f1d9e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling cc v1.2.26
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]     Checking array-init-cursor v0.2.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling polars-utils v0.48.1
[INFO] [stderr]     Checking planus v0.3.1
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]     Checking raw-cpuid v11.5.0
[INFO] [stderr]    Compiling polars-schema v0.48.1
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]    Compiling polars-arrow v0.48.1
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]     Checking dyn-clone v1.0.19
[INFO] [stderr]    Compiling polars-compute v0.48.1
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]     Checking streaming-iterator v0.1.9
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]     Checking debug_unsafe v0.1.3
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]     Checking ethnum v1.5.2
[INFO] [stderr]     Checking atoi_simd v0.16.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.8
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking fast-float2 v0.2.3
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling psm v0.1.26
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling stacker v0.1.21
[INFO] [stderr]    Compiling rustls-native-certs v0.7.3
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling polars-core v0.48.1
[INFO] [stderr]     Checking unicode-width v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling polars-ops v0.48.1
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]     Checking xxhash-rust v0.8.15
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]     Checking argminmax v0.6.3
[INFO] [stderr]     Checking cblas-sys v0.1.4
[INFO] [stderr]    Compiling typeid v1.0.3
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]     Checking streaming-decompression v0.1.2
[INFO] [stderr]     Checking crossterm v0.28.1
[INFO] [stderr]     Checking now v0.1.3
[INFO] [stderr]     Checking lapack-sys v0.14.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]     Checking skiplist v0.5.1
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking humansize v2.1.3
[INFO] [stderr]    Compiling polars v0.48.1
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking polars-parquet-format v0.1.0
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]    Compiling xattr v1.5.0
[INFO] [stderr]     Checking comfy-table v7.1.4
[INFO] [stderr]     Checking rand v0.9.1
[INFO] [stderr]    Compiling tar v0.4.44
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.1
[INFO] [stderr]    Compiling chrono-tz-build v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling bytemuck_derive v1.9.3
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling katexit v0.1.5
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]    Compiling nalgebra-macros v0.2.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling chrono-tz v0.10.3
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling yoke v0.8.0
[INFO] [stderr]    Compiling zerovec v0.11.2
[INFO] [stderr]    Compiling zerotrie v0.2.2
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking bytemuck v1.23.0
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking safe_arch v0.7.4
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling serde_with_macros v3.12.0
[INFO] [stderr]    Compiling plotly_derive v0.12.1
[INFO] [stderr]    Compiling tinystr v0.8.1
[INFO] [stderr]    Compiling potential_utf v0.1.2
[INFO] [stderr]    Compiling icu_locale_core v2.0.0
[INFO] [stderr]     Checking wide v0.7.32
[INFO] [stderr]    Compiling icu_collections v2.0.0
[INFO] [stderr]    Compiling icu_provider v2.0.0
[INFO] [stderr]    Compiling icu_normalizer v2.0.0
[INFO] [stderr]    Compiling icu_properties v2.0.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling ureq v2.12.1
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking polars-arrow-format v0.1.0
[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking erased-serde v0.4.6
[INFO] [stderr]     Checking serde_with v3.12.0
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]     Checking cauchy v0.4.0
[INFO] [stderr]     Checking simba v0.9.0
[INFO] [stderr]    Compiling openblas-build v0.10.11
[INFO] [stderr]    Compiling openblas-src v0.10.11
[INFO] [stderr]    Compiling basic-toml v0.1.10
[INFO] [stderr]    Compiling rinja_parser v0.3.5
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking lax v0.17.0
[INFO] [stderr]     Checking polars-error v0.48.1
[INFO] [stderr]     Checking ndarray-csv v0.5.3
[INFO] [stderr]     Checking ndarray-rand v0.15.0
[INFO] [stderr]     Checking ndarray-linalg v0.17.0
[INFO] [stderr]    Compiling rinja_derive v0.3.5
[INFO] [stderr]     Checking nalgebra v0.33.2
[INFO] [stderr]     Checking rinja v0.3.5
[INFO] [stderr]     Checking plotly v0.12.1
[INFO] [stderr]     Checking polars-row v0.48.1
[INFO] [stderr]     Checking polars-parquet v0.48.1
[INFO] [stderr]     Checking polars-time v0.48.1
[INFO] [stderr]     Checking polars-io v0.48.1
[INFO] [stderr]     Checking rust_first_steps v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Plot` and `Scatter`
[INFO] [stdout]  --> src/bin/kmeans.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | use plotly::{Plot, Scatter};
[INFO] [stdout]   |              ^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `plotly::common::Mode`
[INFO] [stdout]  --> src/bin/kmeans.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use plotly::common::Mode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/bin/kmeans.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let y = encode_labels(&labels);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Plot` and `Scatter`
[INFO] [stdout]  --> src/bin/kmeans.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 | use plotly::{Plot, Scatter};
[INFO] [stdout]   |              ^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `plotly::common::Mode`
[INFO] [stdout]  --> src/bin/kmeans.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use plotly::common::Mode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/bin/kmeans.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let y = encode_labels(&labels);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "8cf2053db54f7623bc1a3d2b95931fad31d87ee39089f3ae46f51a4b13f1d9e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf2053db54f7623bc1a3d2b95931fad31d87ee39089f3ae46f51a4b13f1d9e9", kill_on_drop: false }`
[INFO] [stdout] 8cf2053db54f7623bc1a3d2b95931fad31d87ee39089f3ae46f51a4b13f1d9e9