[INFO] fetching crate arraylib 0.3.0...
[INFO] checking arraylib-0.3.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate arraylib 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate arraylib 0.3.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arraylib 0.3.0
[INFO] finished tweaking crates.io crate arraylib 0.3.0
[INFO] tweaked toml for crates.io crate arraylib 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52069ee35ac1667ff2b12c0ccf5a7b1b425f93c20c7a9a26da2651065ba8ecdc
[INFO] running `Command { std: "docker" "start" "-a" "52069ee35ac1667ff2b12c0ccf5a7b1b425f93c20c7a9a26da2651065ba8ecdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52069ee35ac1667ff2b12c0ccf5a7b1b425f93c20c7a9a26da2651065ba8ecdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52069ee35ac1667ff2b12c0ccf5a7b1b425f93c20c7a9a26da2651065ba8ecdc", kill_on_drop: false }`
[INFO] [stdout] 52069ee35ac1667ff2b12c0ccf5a7b1b425f93c20c7a9a26da2651065ba8ecdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05f5f90770cceeb6551d62b4ad154c945dfaabfadae10e6c586ee13036e5e91e
[INFO] running `Command { std: "docker" "start" "-a" "05f5f90770cceeb6551d62b4ad154c945dfaabfadae10e6c586ee13036e5e91e", kill_on_drop: false }`
[INFO] [stderr]     Checking arraylib v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/iter/chunks.rs:86:52
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let mut iter = [0, 1, 2, 3, 4].iter_move().array_chunks::<[_; 2]>();
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[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/iter/chunks.rs:95:52
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let mut iter = [0, 1, 2, 3, 4].iter_move().array_chunks::<[_; 2]>().rev();
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/chunks.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |                   let array = [0; $array_size].iter_move().array_chunks::<[_; $chunk_size]>();
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 | /         assert_len! {
[INFO] [stdout] 122 | |             size: 0, chunk: 1, expect: 0;
[INFO] [stdout] 123 | |             size: 1, chunk: 1, expect: 1;
[INFO] [stdout] 124 | |             size: 2, chunk: 1, expect: 2;
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |             size: 32, chunk: 3, expect: 10;
[INFO] [stdout] 145 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `IteratorExt::array_chunks(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(iter_array_chunks)]` to the crate attributes to enable `array_chunks`
[INFO] [stdout]     = note: this warning originates in the macro `assert_len` (in Nightly builds, run with -Z macro-backtrace for more info)
[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/iter/windows.rs:143:37
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let mut iter = [0, 1, 2, 3].array_windows::<[_; 2]>();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `Slice::array_windows(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_windows)]` to the crate attributes to enable `core::slice::<impl [T]>::array_windows`
[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/iter/windows.rs:153:37
[INFO] [stdout]     |
[INFO] [stdout] 153 |         let mut iter = [0, 1, 2, 3].array_windows::<[_; 2]>().rev();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `Slice::array_windows(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_windows)]` to the crate attributes to enable `core::slice::<impl [T]>::array_windows`
[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/iter/windows.rs:164:14
[INFO] [stdout]     |
[INFO] [stdout] 164 |             .array_windows::<[_; 2]>()
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `Slice::array_windows(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_windows)]` to the crate attributes to enable `core::slice::<impl [T]>::array_windows`
[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/iter/windows.rs:172:43
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let mut iter = [0, 1, 2, 3, 4, 5].array_windows::<[_; 2]>();
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `Slice::array_windows(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_windows)]` to the crate attributes to enable `core::slice::<impl [T]>::array_windows`
[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/iter/windows.rs:181:43
[INFO] [stdout]     |
[INFO] [stdout] 181 |         let mut iter = [0, 1, 2, 3, 4, 5].array_windows::<[_; 2]>();
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `Slice::array_windows(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_windows)]` to the crate attributes to enable `core::slice::<impl [T]>::array_windows`
[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/iter/windows.rs:190:43
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let mut iter = [0, 1, 2, 3, 4, 5].array_windows::<[_; 2]>();
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item 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 `Slice::array_windows(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(array_windows)]` to the crate attributes to enable `core::slice::<impl [T]>::array_windows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "05f5f90770cceeb6551d62b4ad154c945dfaabfadae10e6c586ee13036e5e91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f5f90770cceeb6551d62b4ad154c945dfaabfadae10e6c586ee13036e5e91e", kill_on_drop: false }`
[INFO] [stdout] 05f5f90770cceeb6551d62b4ad154c945dfaabfadae10e6c586ee13036e5e91e
