[INFO] fetching crate cortical-io 0.1.14...
[INFO] checking cortical-io-0.1.14 against master#18a6d911caba59605eb03db1452848a85d2e5879 for pr-112743
[INFO] extracting crate cortical-io 0.1.14 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate cortical-io 0.1.14 on toolchain 18a6d911caba59605eb03db1452848a85d2e5879
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cortical-io 0.1.14
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cortical-io 0.1.14
[INFO] tweaked toml for crates.io crate cortical-io 0.1.14 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate cortical-io 0.1.14 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" "+18a6d911caba59605eb03db1452848a85d2e5879" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spin v0.9.4
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[INFO] [stdout] e350908c5a194e24b9ef48d9c554a32f355d32124565d86a633d3bd58f27c0ef
[INFO] running `Command { std: "docker" "start" "-a" "e350908c5a194e24b9ef48d9c554a32f355d32124565d86a633d3bd58f27c0ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e350908c5a194e24b9ef48d9c554a32f355d32124565d86a633d3bd58f27c0ef", kill_on_drop: false }`
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[INFO] [stdout] e350908c5a194e24b9ef48d9c554a32f355d32124565d86a633d3bd58f27c0ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+18a6d911caba59605eb03db1452848a85d2e5879" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 081b51cfeadec9cd9b715935090d094364d1a0001b71ca6441edc94fb25b045d
[INFO] running `Command { std: "docker" "start" "-a" "081b51cfeadec9cd9b715935090d094364d1a0001b71ca6441edc94fb25b045d", kill_on_drop: false }`
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[INFO] [stderr]     Checking cortical-io v0.1.14 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `num_traits::cast::FromPrimitive`
[INFO] [stdout]  --> src/image.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use num_traits::cast::FromPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FromPrimitive`
[INFO] [stdout]  --> src/density.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use num_traits::{FromPrimitive, Zero};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_traits::cast::FromPrimitive`
[INFO] [stdout]  --> src/image.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use num_traits::cast::FromPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FromPrimitive`
[INFO] [stdout]  --> src/density.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use num_traits::{FromPrimitive, Zero};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/density.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/density.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `amax` is never used
[INFO] [stdout]   --> src/density.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn amax(
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `amax` is never used
[INFO] [stdout]   --> src/density.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn amax(
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TextSlice`
[INFO] [stdout]  --> src/cortical.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cortical_io::{Cortical, TextSlice, TextSliceRequest};
[INFO] [stdout]   |                             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cortical_io::similarity::FingerprintSimilarity`
[INFO] [stdout]  --> src/cortical.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use cortical_io::similarity::FingerprintSimilarity;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/cortical.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |       return;
[INFO] [stdout]    |       ------ any code following this expression is unreachable
[INFO] [stdout] 22 |
[INFO] [stdout] 23 | /     let file =
[INFO] [stdout] 24 | |         std::fs::read_to_string("./refvec.txt")
[INFO] [stdout] 25 | |             .unwrap()
[INFO] [stdout] 26 | |             .split(',')
[INFO] [stdout] 27 | |             .map(|s| s.parse::<u32>().unwrap())
[INFO] [stdout] 28 | |             .collect::<Vec<u32>>();
[INFO] [stdout]    | |___________________________________^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `densest_points`
[INFO] [stdout]    --> src/cortical.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let densest_points = &kde.densest_points;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_densest_points`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.72s
[INFO] running `Command { std: "docker" "inspect" "081b51cfeadec9cd9b715935090d094364d1a0001b71ca6441edc94fb25b045d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081b51cfeadec9cd9b715935090d094364d1a0001b71ca6441edc94fb25b045d", kill_on_drop: false }`
[INFO] [stdout] 081b51cfeadec9cd9b715935090d094364d1a0001b71ca6441edc94fb25b045d