[INFO] cloning repository https://github.com/Spirans/rust-kmeans
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Spirans/rust-kmeans" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpirans%2Frust-kmeans", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpirans%2Frust-kmeans'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5af3918456583577e082adaf50a5bed0991a0b73
[INFO] checking Spirans/rust-kmeans against try#024378d9203a4009ed73d6db2681b88a8d74ce7a for pr-112160
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpirans%2Frust-kmeans" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Spirans/rust-kmeans on toolchain 024378d9203a4009ed73d6db2681b88a8d74ce7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Spirans/rust-kmeans
[INFO] finished tweaking git repo https://github.com/Spirans/rust-kmeans
[INFO] tweaked toml for git repo https://github.com/Spirans/rust-kmeans written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Spirans/rust-kmeans 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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 128c90e1eb9f106566fefc2f94c74689168f4e354492d45e344d62fea810e17d
[INFO] running `Command { std: "docker" "start" "-a" "128c90e1eb9f106566fefc2f94c74689168f4e354492d45e344d62fea810e17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "128c90e1eb9f106566fefc2f94c74689168f4e354492d45e344d62fea810e17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "128c90e1eb9f106566fefc2f94c74689168f4e354492d45e344d62fea810e17d", kill_on_drop: false }`
[INFO] [stdout] 128c90e1eb9f106566fefc2f94c74689168f4e354492d45e344d62fea810e17d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3d2c894795bedc51a1ea06fff3a036ac457aec04074ae11d4c9f87c9fa39fd6
[INFO] running `Command { std: "docker" "start" "-a" "d3d2c894795bedc51a1ea06fff3a036ac457aec04074ae11d4c9f87c9fa39fd6", kill_on_drop: false }`
[INFO] [stderr]     Checking kmeans v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&Vec<f64>` instead of borrowing the inner type
[INFO] [stdout]   --> src/lib.rs:50:60
[INFO] [stdout]    |
[INFO] [stdout] 50 |             if !equal(centroids.get(key).unwrap(), new_node.borrow()) {
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/lib.rs:78:54
[INFO] [stdout]    |
[INFO] [stdout] 78 |         for_each(|node| results.push(distance(in_node.borrow(), node)));
[INFO] [stdout]    |                                                      ^^^^^^^^^ unnecessary method call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Vec<f64>` does not implement `Borrow`, so calling `borrow` on `&Vec<f64>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kmeans` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&Vec<f64>` instead of borrowing the inner type
[INFO] [stdout]   --> src/lib.rs:50:60
[INFO] [stdout]    |
[INFO] [stdout] 50 |             if !equal(centroids.get(key).unwrap(), new_node.borrow()) {
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/lib.rs:78:54
[INFO] [stdout]    |
[INFO] [stdout] 78 |         for_each(|node| results.push(distance(in_node.borrow(), node)));
[INFO] [stdout]    |                                                      ^^^^^^^^^ unnecessary method call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Vec<f64>` does not implement `Borrow`, so calling `borrow` on `&Vec<f64>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:136:44
[INFO] [stdout]     |
[INFO] [stdout] 136 |             let index = nearest(observation.borrow(), c.clone().unwrap().borrow());
[INFO] [stdout]     |                                            ^^^^^^^^^ unnecessary method call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Vec<f64>` does not implement `Borrow`, so calling `borrow` on `&Vec<f64>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kmeans` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d3d2c894795bedc51a1ea06fff3a036ac457aec04074ae11d4c9f87c9fa39fd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d2c894795bedc51a1ea06fff3a036ac457aec04074ae11d4c9f87c9fa39fd6", kill_on_drop: false }`
[INFO] [stdout] d3d2c894795bedc51a1ea06fff3a036ac457aec04074ae11d4c9f87c9fa39fd6