[INFO] fetching crate mentat 0.0.4...
[INFO] checking mentat-0.0.4 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate mentat 0.0.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate mentat 0.0.4 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mentat 0.0.4
[INFO] finished tweaking crates.io crate mentat 0.0.4
[INFO] tweaked toml for crates.io crate mentat 0.0.4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cb7722e7477426c22eb5d599bc5d4ca4b78070c6a01da694ba72ab60c0a1443d
[INFO] running `"docker" "start" "-a" "cb7722e7477426c22eb5d599bc5d4ca4b78070c6a01da694ba72ab60c0a1443d"`
[INFO] [stderr]     Checking random v0.12.2
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking mentat v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking probability v0.15.12
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / macro_rules! assert_delta {
[INFO] [stderr] 14 | |     ($x:expr, $y:expr, $d:expr) => {
[INFO] [stderr] 15 | |         if !(($x - $y).abs() < $d || ($y - $x).abs() < $d) { panic!(); }
[INFO] [stderr] 16 | |     }
[INFO] [stderr] 17 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `squared_distance`
[INFO] [stderr]  --> src/utils/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn squared_distance(x: &Vec<f64>, y: &Vec<f64>) -> f64 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `EWMA`
[INFO] [stderr]  --> src/timeseries/mod.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct EWMA {
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/timeseries/mod.rs:12:2
[INFO] [stderr]    |
[INFO] [stderr] 12 |  pub fn new(value: f64, age: i64) -> EWMA {
[INFO] [stderr]    |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update`
[INFO] [stderr]   --> src/timeseries/mod.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |  pub fn update(&mut self, value : f64) -> f64 {
[INFO] [stderr]    |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mean`
[INFO] [stderr]   --> src/lib.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn mean(numbers: &Vec<f64>) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `partial`
[INFO] [stderr]    --> src/lib.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn partial(x: Vec<f64>, y: Vec<f64>) -> impl Fn(f64) -> f64 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking matplotrust v0.1.7
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/timeseries/mod.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let s = figure.save("./docs/figures/ewma.png", None);
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `squared_distance`
[INFO] [stderr]  --> src/utils/mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn squared_distance(x: &Vec<f64>, y: &Vec<f64>) -> f64 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `age`
[INFO] [stderr]  --> src/timeseries/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     age: i64,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pdf`
[INFO] [stderr]    --> src/lib.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn pdf() {
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.80s
[INFO] running `"docker" "inspect" "cb7722e7477426c22eb5d599bc5d4ca4b78070c6a01da694ba72ab60c0a1443d"`
[INFO] running `"docker" "rm" "-f" "cb7722e7477426c22eb5d599bc5d4ca4b78070c6a01da694ba72ab60c0a1443d"`
[INFO] [stdout] cb7722e7477426c22eb5d599bc5d4ca4b78070c6a01da694ba72ab60c0a1443d