[INFO] fetching crate rsml 0.1.0...
[INFO] checking rsml-0.1.0 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate rsml 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rsml 0.1.0 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsml 0.1.0
[INFO] finished tweaking crates.io crate rsml 0.1.0
[INFO] tweaked toml for crates.io crate rsml 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eebe1b3621562306fe73e555e5fce6a3a2d10a98e943f620cf87e6f94d932201
[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" "eebe1b3621562306fe73e555e5fce6a3a2d10a98e943f620cf87e6f94d932201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eebe1b3621562306fe73e555e5fce6a3a2d10a98e943f620cf87e6f94d932201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eebe1b3621562306fe73e555e5fce6a3a2d10a98e943f620cf87e6f94d932201", kill_on_drop: false }`
[INFO] [stdout] eebe1b3621562306fe73e555e5fce6a3a2d10a98e943f620cf87e6f94d932201
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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] 89c4ba713da512d986c9ab37faa82a809e056df0a91f20c676a87df8c4574c6a
[INFO] running `Command { std: "docker" "start" "-a" "89c4ba713da512d986c9ab37faa82a809e056df0a91f20c676a87df8c4574c6a", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rsml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/distance/chebyshev.rs:15:76
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<Error>> {
[INFO] [stdout]    |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/distance/chebyshev.rs:15:76
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<Error>> {
[INFO] [stdout]    |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/classification/k_means.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/classification/k_means.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |             let mut clusters = &mut self.clusters;
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `k`
[INFO] [stdout]   --> src/classification/k_means.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     k: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data`
[INFO] [stdout]   --> src/classification/k_means.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     data: Vec<Vec<f64>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `clusters`
[INFO] [stdout]   --> src/classification/k_means.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     clusters: Vec<Cluster>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `distance`
[INFO] [stdout]   --> src/classification/k_means.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     distance: D,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/classification/k_means.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new(data: Vec<Vec<f64>>, k: usize, distance: D) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cluster_to_centroids`
[INFO] [stdout]   --> src/classification/k_means.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cluster_to_centroids(&mut self) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/classification/k_means.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn new(centroid: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/classification/k_means.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |             let mut clusters = &mut self.clusters;
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `k`
[INFO] [stdout]   --> src/classification/k_means.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     k: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data`
[INFO] [stdout]   --> src/classification/k_means.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     data: Vec<Vec<f64>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `clusters`
[INFO] [stdout]   --> src/classification/k_means.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     clusters: Vec<Cluster>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `distance`
[INFO] [stdout]   --> src/classification/k_means.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     distance: D,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/classification/k_means.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new(data: Vec<Vec<f64>>, k: usize, distance: D) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cluster_to_centroids`
[INFO] [stdout]   --> src/classification/k_means.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn cluster_to_centroids(&mut self) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/classification/k_means.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn new(centroid: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Generations`
[INFO] [stdout]   --> src/population.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     Generations(u64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Generations`
[INFO] [stdout]   --> src/population.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     Generations(u64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.73s
[INFO] running `Command { std: "docker" "inspect" "89c4ba713da512d986c9ab37faa82a809e056df0a91f20c676a87df8c4574c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c4ba713da512d986c9ab37faa82a809e056df0a91f20c676a87df8c4574c6a", kill_on_drop: false }`
[INFO] [stdout] 89c4ba713da512d986c9ab37faa82a809e056df0a91f20c676a87df8c4574c6a