[INFO] crate k 0.16.1 is already in cache
[INFO] testing k-0.16.1 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate k 0.16.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate k 0.16.1 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate k 0.16.1
[INFO] finished tweaking crates.io crate k 0.16.1
[INFO] tweaked toml for crates.io crate k 0.16.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate k 0.16.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 17ad44da2ec3f2c9df6f3d24b3ad3cf9be4306d44a8213e63bd480fbb7f69a34
[INFO] running `"docker" "start" "-a" "17ad44da2ec3f2c9df6f3d24b3ad3cf9be4306d44a8213e63bd480fbb7f69a34"`
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling RustyXML v0.1.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling xml-rs v0.3.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde-xml-rs v0.1.2
[INFO] [stderr]    Compiling alga v0.9.2
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling backtrace v0.3.42
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]    Compiling nalgebra v0.18.1
[INFO] [stderr]    Compiling urdf-rs v0.4.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling k v0.16.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/ik.rs:43:37
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]    |                                     ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:204:41
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:259:41
[INFO] [stderr]     |
[INFO] [stderr] 259 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `"docker" "inspect" "17ad44da2ec3f2c9df6f3d24b3ad3cf9be4306d44a8213e63bd480fbb7f69a34"`
[INFO] running `"docker" "rm" "-f" "17ad44da2ec3f2c9df6f3d24b3ad3cf9be4306d44a8213e63bd480fbb7f69a34"`
[INFO] [stdout] 17ad44da2ec3f2c9df6f3d24b3ad3cf9be4306d44a8213e63bd480fbb7f69a34
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3d852704b89e51e5b3b3d3185ade8dc1515f6ebc7c8c68c8b539d1fa924d9ba9
[INFO] running `"docker" "start" "-a" "3d852704b89e51e5b3b3d3185ade8dc1515f6ebc7c8c68c8b539d1fa924d9ba9"`
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling instant v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling wayland-sys v0.21.13
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling ncollide3d v0.19.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/ik.rs:43:37
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]    |                                     ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:204:41
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:259:41
[INFO] [stderr]     |
[INFO] [stderr] 259 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling wayland-commons v0.21.13
[INFO] [stderr]    Compiling rusttype v0.8.2
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling docmatic v0.1.2
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling image v0.21.3
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.6
[INFO] [stderr]    Compiling winit v0.18.1
[INFO] [stderr]    Compiling kiss3d v0.20.1
[INFO] [stderr]    Compiling k v0.16.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/ik.rs:43:37
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]    |                                     ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:204:41
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:259:41
[INFO] [stderr]     |
[INFO] [stderr] 259 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3m 16s
[INFO] running `"docker" "inspect" "3d852704b89e51e5b3b3d3185ade8dc1515f6ebc7c8c68c8b539d1fa924d9ba9"`
[INFO] running `"docker" "rm" "-f" "3d852704b89e51e5b3b3d3185ade8dc1515f6ebc7c8c68c8b539d1fa924d9ba9"`
[INFO] [stdout] 3d852704b89e51e5b3b3d3185ade8dc1515f6ebc7c8c68c8b539d1fa924d9ba9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stdout] 79deb570f7f6c8bd0854129756f5da4d00ca23c5d5c18b303b21689e69241d61
[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" "79deb570f7f6c8bd0854129756f5da4d00ca23c5d5c18b303b21689e69241d61"`
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/ik.rs:43:37
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]    |                                     ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:204:41
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:259:41
[INFO] [stderr]     |
[INFO] [stderr] 259 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/ik.rs:43:37
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]    |                                     ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:204:41
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/ik.rs:259:41
[INFO] [stderr]     |
[INFO] [stderr] 259 |         let use_dof = constraints_array.into_iter().filter(|x| **x).count();
[INFO] [stderr]     |                                         ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/k-a635833b8a5a8082
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test ik::test_nullspace_func ... ok
[INFO] [stdout] test chain::test_mimic ... ok
[INFO] [stdout] test chain::it_works ... ok
[INFO] [stdout] test funcs::test_update_center_of_mass ... ok
[INFO] [stdout] test urdf::test_tree_from_file ... ok
[INFO] [stdout] test urdf::test_tree ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_chain-3893cb1a5388eb0c
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_tree ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_ik-1a810c5b4b7c5d7d
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::ik_fk7 ... ok
[INFO] [stdout] test tests::ik_fk6 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_readme-81263eae5e2e1186
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test README.md - __Kinematics_library_for_rust_lang_::Create_link_tree_from_urdf_and_solve_IK (line 41) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] test test_readme ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests k
[INFO] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test src/chain.rs - chain::Chain<T>::from_end (line 149) ... ok
[INFO] [stdout] test src/chain.rs - chain::SerialChain<T>::try_new (line 406) ... ok
[INFO] [stdout] test src/chain.rs - chain::Chain<T>::from_root (line 119) ... ok
[INFO] [stdout] test src/chain.rs - chain::SerialChain<T>::from_end (line 436) ... ok
[INFO] [stdout] test src/chain.rs - chain::Chain<T>::dof (line 221) ... ok
[INFO] [stdout] test src/chain.rs - chain::Chain<T>::iter (line 181) ... ok
[INFO] [stdout] test src/chain.rs - chain::Chain<T>::find (line 242) ... ok
[INFO] [stdout] test src/ik.rs - ik::Constraints::default (line 71) ... ok
[INFO] [stdout] test src/ik.rs - ik::JacobianIKSolver<T>::new (line 145) ... ok
[INFO] [stdout] test src/chain.rs - chain::Chain (line 28) ... ok
[INFO] [stdout] test src/chain.rs - chain::SerialChain<T>::try_new (line 412) ... ok
[INFO] [stdout] test src/ik.rs - ik::JacobianIKSolver<T>::set_nullspace_function (line 166) ... ok
[INFO] [stdout] test src/funcs.rs - funcs::center_of_mass (line 40) ... ok
[INFO] [stdout] test src/joint.rs - joint::Mimic (line 165) ... ok
[INFO] [stdout] test src/joint.rs - joint::Joint<T>::new (line 238) ... ok
[INFO] [stdout] test src/joint.rs - joint::Joint<T>::local_transform (line 364) ... ok
[INFO] [stdout] test src/joint.rs - joint::Mimic<T>::mimic_position (line 195) ... ok
[INFO] [stdout] test src/joint.rs - joint::Joint<T>::set_joint_position (line 269) ... ok
[INFO] [stdout] test src/joint.rs - joint::Mimic<T>::new (line 185) ... ok
[INFO] [stdout] test src/joint.rs - joint::Range<T>::from (line 148) ... ok
[INFO] [stdout] test src/joint.rs - joint::Mimic<T>::mimic_position (line 200) ... ok
[INFO] [stdout] test src/joint.rs - joint::Range<T>::is_valid (line 131) ... ok
[INFO] [stdout] test src/joint.rs - joint::Range<T>::new (line 118) ... ok
[INFO] [stdout] test src/node.rs - connect (line 547) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::is_root (line 124) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::set_joint_position (line 162) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::is_end (line 139) ... ok
[INFO] [stdout] test src/node.rs - node::JointBuilder (line 464) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::set_joint_position (line 174) ... ok
[INFO] [stdout] test src/ik.rs - ik::JacobianIKSolver<T>::solve_with_constraints (line 369) ... ok
[INFO] [stdout] test src/ik.rs - ik::JacobianIKSolver<T>::solve (line 328) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::set_joint_position (line 184) ... ok
[INFO] [stdout] test src/urdf.rs - urdf::link_to_joint_map (line 343) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::world_transform (line 260) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "79deb570f7f6c8bd0854129756f5da4d00ca23c5d5c18b303b21689e69241d61"`
[INFO] running `"docker" "rm" "-f" "79deb570f7f6c8bd0854129756f5da4d00ca23c5d5c18b303b21689e69241d61"`
[INFO] [stdout] 79deb570f7f6c8bd0854129756f5da4d00ca23c5d5c18b303b21689e69241d61