[INFO] cloning repository https://github.com/SerhiiBilyk/kmeans
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SerhiiBilyk/kmeans" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSerhiiBilyk%2Fkmeans", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSerhiiBilyk%2Fkmeans'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d725b2790ed1af1c9b4b9cdadb010ff9dd32501
[INFO] checking SerhiiBilyk/kmeans against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSerhiiBilyk%2Fkmeans" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SerhiiBilyk/kmeans on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SerhiiBilyk/kmeans
[INFO] finished tweaking git repo https://github.com/SerhiiBilyk/kmeans
[INFO] tweaked toml for git repo https://github.com/SerhiiBilyk/kmeans written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/SerhiiBilyk/kmeans already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.50
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.50
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[INFO] [stderr]   Downloaded rusttype v0.8.0
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.50
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[INFO] [stderr]   Downloaded plotters v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f984afd768a45927f6e577838cae1dde31d42422c6e5140b3bc0835d5dda190c
[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" "f984afd768a45927f6e577838cae1dde31d42422c6e5140b3bc0835d5dda190c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f984afd768a45927f6e577838cae1dde31d42422c6e5140b3bc0835d5dda190c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f984afd768a45927f6e577838cae1dde31d42422c6e5140b3bc0835d5dda190c", kill_on_drop: false }`
[INFO] [stdout] f984afd768a45927f6e577838cae1dde31d42422c6e5140b3bc0835d5dda190c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 78a192d6bc0edf80a6b1d9937d04a7136ce4637e01288b79326781032eb64f0e
[INFO] running `Command { std: "docker" "start" "-a" "78a192d6bc0edf80a6b1d9937d04a7136ce4637e01288b79326781032eb64f0e", kill_on_drop: false }`
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[INFO] [stderr]     Checking cfg-if v0.1.9
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[INFO] [stderr]    Compiling proc-macro2 v0.4.30
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[INFO] [stderr]     Checking adler32 v1.0.3
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[INFO] [stderr]     Checking crossbeam-queue v0.1.2
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[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking tiff v0.2.2
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[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `distance`, `random_number`
[INFO] [stdout]  --> src/plotter.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use utils::{distance, random_number};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `distance`, `random_number`
[INFO] [stdout]  --> src/plotter.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use utils::{distance, random_number};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_dimensionality`
[INFO] [stdout]   --> src/kmeans.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_dimensionality(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]    --> src/kmeans.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn reset(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     draw(kmeans.result(), kmeans.to_tuples(double));
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/plotter.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     root.fill(&WHITE);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_dimensionality`
[INFO] [stdout]   --> src/kmeans.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_dimensionality(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]    --> src/kmeans.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn reset(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     draw(kmeans.result(), kmeans.to_tuples(double));
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/plotter.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     root.fill(&WHITE);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.70s
[INFO] running `Command { std: "docker" "inspect" "78a192d6bc0edf80a6b1d9937d04a7136ce4637e01288b79326781032eb64f0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78a192d6bc0edf80a6b1d9937d04a7136ce4637e01288b79326781032eb64f0e", kill_on_drop: false }`
[INFO] [stdout] 78a192d6bc0edf80a6b1d9937d04a7136ce4637e01288b79326781032eb64f0e