[INFO] fetching crate zhang_hilbert 0.1.1...
[INFO] testing zhang_hilbert-0.1.1 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate zhang_hilbert 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate zhang_hilbert 0.1.1 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zhang_hilbert 0.1.1
[INFO] finished tweaking crates.io crate zhang_hilbert 0.1.1
[INFO] tweaked toml for crates.io crate zhang_hilbert 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array v0.0.1
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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] 5769fd7be27f1012b2b6a1637639f989ca219195d78550e7c392fa8772d7c537
[INFO] running `Command { std: "docker" "start" "-a" "5769fd7be27f1012b2b6a1637639f989ca219195d78550e7c392fa8772d7c537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5769fd7be27f1012b2b6a1637639f989ca219195d78550e7c392fa8772d7c537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5769fd7be27f1012b2b6a1637639f989ca219195d78550e7c392fa8772d7c537", kill_on_drop: false }`
[INFO] [stdout] 5769fd7be27f1012b2b6a1637639f989ca219195d78550e7c392fa8772d7c537
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4b236038ddddb7b987d9668a5386a5c9d2484e673eb78cd8a01a38634e0140
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5f4b236038ddddb7b987d9668a5386a5c9d2484e673eb78cd8a01a38634e0140", kill_on_drop: false }`
[INFO] [stderr]    Compiling array v0.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling zhang_hilbert v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:201:24
[INFO] [stdout]     |
[INFO] [stdout] 201 |     let size_l1 = size.map(|x| (x + three) >> 2 << 1);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:333:37
[INFO] [stdout]     |
[INFO] [stdout] 333 |                     size: prev.size.map(|x| x - division_l1(x)),
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:342:51
[INFO] [stdout]     |
[INFO] [stdout] 342 |             let (curve_type, helper) = match size.map(|x| (x & T::one()).to_u8().unwrap()) {
[INFO] [stdout]     |                                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:616:37
[INFO] [stdout]     |
[INFO] [stdout] 616 |             let size_l1 = prev_size.map(division_l1);
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.32s
[INFO] running `Command { std: "docker" "inspect" "5f4b236038ddddb7b987d9668a5386a5c9d2484e673eb78cd8a01a38634e0140", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4b236038ddddb7b987d9668a5386a5c9d2484e673eb78cd8a01a38634e0140", kill_on_drop: false }`
[INFO] [stdout] 5f4b236038ddddb7b987d9668a5386a5c9d2484e673eb78cd8a01a38634e0140
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b5c2a2add87c3f434aaa28a22b822dc3cfa7ffe873335e46a86383fdf146a4a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6b5c2a2add87c3f434aaa28a22b822dc3cfa7ffe873335e46a86383fdf146a4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:201:24
[INFO] [stdout]     |
[INFO] [stdout] 201 |     let size_l1 = size.map(|x| (x + three) >> 2 << 1);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:333:37
[INFO] [stdout]     |
[INFO] [stdout] 333 |                     size: prev.size.map(|x| x - division_l1(x)),
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:342:51
[INFO] [stdout]     |
[INFO] [stdout] 342 |             let (curve_type, helper) = match size.map(|x| (x & T::one()).to_u8().unwrap()) {
[INFO] [stdout]     |                                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:616:37
[INFO] [stdout]     |
[INFO] [stdout] 616 |             let size_l1 = prev_size.map(division_l1);
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling zhang_hilbert v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:201:24
[INFO] [stdout]     |
[INFO] [stdout] 201 |     let size_l1 = size.map(|x| (x + three) >> 2 << 1);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:333:37
[INFO] [stdout]     |
[INFO] [stdout] 333 |                     size: prev.size.map(|x| x - division_l1(x)),
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:342:51
[INFO] [stdout]     |
[INFO] [stdout] 342 |             let (curve_type, helper) = match size.map(|x| (x & T::one()).to_u8().unwrap()) {
[INFO] [stdout]     |                                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/core.rs:616:37
[INFO] [stdout]     |
[INFO] [stdout] 616 |             let size_l1 = prev_size.map(division_l1);
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 26.04s
[INFO] running `Command { std: "docker" "inspect" "6b5c2a2add87c3f434aaa28a22b822dc3cfa7ffe873335e46a86383fdf146a4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b5c2a2add87c3f434aaa28a22b822dc3cfa7ffe873335e46a86383fdf146a4a", kill_on_drop: false }`
[INFO] [stdout] 6b5c2a2add87c3f434aaa28a22b822dc3cfa7ffe873335e46a86383fdf146a4a
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 223566feceb393394fd0aef660c1ac96a404e59bb048fcf67212785da9c2a011
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "223566feceb393394fd0aef660c1ac96a404e59bb048fcf67212785da9c2a011", kill_on_drop: false }`
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/core.rs:201:24
[INFO] [stderr]     |
[INFO] [stderr] 201 |     let size_l1 = size.map(|x| (x + three) >> 2 << 1);
[INFO] [stderr]     |                        ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/core.rs:333:37
[INFO] [stderr]     |
[INFO] [stderr] 333 |                     size: prev.size.map(|x| x - division_l1(x)),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout] running 3 tests
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] test core::tests::division_sanity ... ok
[INFO] [stderr]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/core.rs:342:51
[INFO] [stderr]     |
[INFO] [stderr] 342 |             let (curve_type, helper) = match size.map(|x| (x & T::one()).to_u8().unwrap()) {
[INFO] [stderr]     |                                                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/core.rs:616:37
[INFO] [stderr]     |
[INFO] [stderr] 616 |             let size_l1 = prev_size.map(division_l1);
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/core.rs:201:24
[INFO] [stderr]     |
[INFO] [stderr] 201 |     let size_l1 = size.map(|x| (x + three) >> 2 << 1);
[INFO] [stderr]     |                        ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/core.rs:333:37
[INFO] [stderr]     |
[INFO] [stderr] 333 |                     size: prev.size.map(|x| x - division_l1(x)),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/core.rs:342:51
[INFO] [stderr]     |
[INFO] [stderr] 342 |             let (curve_type, helper) = match size.map(|x| (x & T::one()).to_u8().unwrap()) {
[INFO] [stderr]     |                                                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/core.rs:616:37
[INFO] [stderr]     |
[INFO] [stderr] 616 |             let size_l1 = prev_size.map(division_l1);
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `array::Array2::map(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zhang_hilbert-13f8ba5393861c2d
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/scan-ded4786b07cf4569
[INFO] [stdout] test core::tests::log2_sanity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test normal_scan32_patterns ... ok
[INFO] [stdout] test arb_scan32_patterns ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zhang_hilbert
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "223566feceb393394fd0aef660c1ac96a404e59bb048fcf67212785da9c2a011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223566feceb393394fd0aef660c1ac96a404e59bb048fcf67212785da9c2a011", kill_on_drop: false }`
[INFO] [stdout] 223566feceb393394fd0aef660c1ac96a404e59bb048fcf67212785da9c2a011