[INFO] crate rsml 0.1.0 is already in cache
[INFO] checking rsml-0.1.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate rsml 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate rsml 0.1.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2ffa928e40715ba39512faae8a223821b4edd5699354e47bf1dab505c5ab2de0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "2ffa928e40715ba39512faae8a223821b4edd5699354e47bf1dab505c5ab2de0"`
[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] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/distance/chebyshev.rs:15:76
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<Error>> {
[INFO] [stderr]    |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/classification/k_means.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/distance/chebyshev.rs:15:76
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<Error>> {
[INFO] [stderr]    |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/classification/k_means.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |             let mut clusters = &mut self.clusters;
[INFO] [stderr]    |                 ----^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `k`
[INFO] [stderr]   --> src/classification/k_means.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     k: usize,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data`
[INFO] [stderr]   --> src/classification/k_means.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     data: Vec<Vec<f64>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `clusters`
[INFO] [stderr]   --> src/classification/k_means.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     clusters: Vec<Cluster>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `distance`
[INFO] [stderr]   --> src/classification/k_means.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     distance: D,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/classification/k_means.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn new(data: Vec<Vec<f64>>, k: usize, distance: D) -> Result<Self, Box<dyn Error>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cluster_to_centroids`
[INFO] [stderr]   --> src/classification/k_means.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cluster_to_centroids(&mut self) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/classification/k_means.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn new(centroid: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/classification/k_means.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |             let mut clusters = &mut self.clusters;
[INFO] [stderr]    |                 ----^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `k`
[INFO] [stderr]   --> src/classification/k_means.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     k: usize,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data`
[INFO] [stderr]   --> src/classification/k_means.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     data: Vec<Vec<f64>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `clusters`
[INFO] [stderr]   --> src/classification/k_means.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     clusters: Vec<Cluster>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `distance`
[INFO] [stderr]   --> src/classification/k_means.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     distance: D,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/classification/k_means.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn new(data: Vec<Vec<f64>>, k: usize, distance: D) -> Result<Self, Box<dyn Error>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cluster_to_centroids`
[INFO] [stderr]   --> src/classification/k_means.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cluster_to_centroids(&mut self) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/classification/k_means.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn new(centroid: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Generations`
[INFO] [stderr]   --> src/population.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     Generations(u64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Generations`
[INFO] [stderr]   --> src/population.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     Generations(u64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `"docker" "inspect" "2ffa928e40715ba39512faae8a223821b4edd5699354e47bf1dab505c5ab2de0"`
[INFO] running `"docker" "rm" "-f" "2ffa928e40715ba39512faae8a223821b4edd5699354e47bf1dab505c5ab2de0"`
[INFO] [stdout] 2ffa928e40715ba39512faae8a223821b4edd5699354e47bf1dab505c5ab2de0