[INFO] fetching crate mentat 0.0.4...
[INFO] checking mentat-0.0.4 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate mentat 0.0.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate mentat 0.0.4 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded special v0.8.1
[INFO] [stderr]   Downloaded matplotrust v0.1.7
[INFO] [stderr]   Downloaded random v0.12.2
[INFO] [stderr]   Downloaded probability v0.15.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", 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] 579c8d7fa71a9602b7115f6bd6d2eba9d5e2c9ecf56d4411c02dced93835f84b
[INFO] running `Command { std: "docker" "start" "-a" "579c8d7fa71a9602b7115f6bd6d2eba9d5e2c9ecf56d4411c02dced93835f84b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "579c8d7fa71a9602b7115f6bd6d2eba9d5e2c9ecf56d4411c02dced93835f84b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "579c8d7fa71a9602b7115f6bd6d2eba9d5e2c9ecf56d4411c02dced93835f84b", kill_on_drop: false }`
[INFO] [stdout] 579c8d7fa71a9602b7115f6bd6d2eba9d5e2c9ecf56d4411c02dced93835f84b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] 511968d138a90bd35da16eb168189f157b469b74dda47ca1a41542b550729870
[INFO] running `Command { std: "docker" "start" "-a" "511968d138a90bd35da16eb168189f157b469b74dda47ca1a41542b550729870", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking probability v0.15.12
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking mentat v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `assert_delta`
[INFO] [stdout]   --> src/lib.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | macro_rules! assert_delta {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `squared_distance`
[INFO] [stdout]  --> src/utils/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn squared_distance(x: &Vec<f64>, y: &Vec<f64>) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `EWMA`
[INFO] [stdout]  --> src/timeseries/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct EWMA {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/timeseries/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |  pub fn new(value: f64, age: i64) -> EWMA {
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/timeseries/mod.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |  pub fn update(&mut self, value : f64) -> f64 {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mean`
[INFO] [stdout]   --> src/lib.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn mean(numbers: &Vec<f64>) -> f64 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `partial`
[INFO] [stdout]    --> src/lib.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn partial(x: Vec<f64>, y: Vec<f64>) -> impl Fn(f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking matplotrust v0.1.7
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/timeseries/mod.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let s = figure.save("./docs/figures/ewma.png", None);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `squared_distance`
[INFO] [stdout]  --> src/utils/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn squared_distance(x: &Vec<f64>, y: &Vec<f64>) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> src/timeseries/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     age: i64,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pdf`
[INFO] [stdout]    --> src/lib.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn pdf() {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.65s
[INFO] running `Command { std: "docker" "inspect" "511968d138a90bd35da16eb168189f157b469b74dda47ca1a41542b550729870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "511968d138a90bd35da16eb168189f157b469b74dda47ca1a41542b550729870", kill_on_drop: false }`
[INFO] [stdout] 511968d138a90bd35da16eb168189f157b469b74dda47ca1a41542b550729870