[INFO] fetching crate std_nightly_to_stable_3db085279c83 0.1.1...
[INFO] testing std_nightly_to_stable_3db085279c83-0.1.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate std_nightly_to_stable_3db085279c83 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate std_nightly_to_stable_3db085279c83 0.1.1
[INFO] finished tweaking crates.io crate std_nightly_to_stable_3db085279c83 0.1.1
[INFO] tweaked toml for crates.io crate std_nightly_to_stable_3db085279c83 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate std_nightly_to_stable_3db085279c83 0.1.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93386bef8c7c9f487f0553c46480f00dd68248278c89e394960286d037a12a8e
[INFO] running `Command { std: "docker" "start" "-a" "93386bef8c7c9f487f0553c46480f00dd68248278c89e394960286d037a12a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93386bef8c7c9f487f0553c46480f00dd68248278c89e394960286d037a12a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93386bef8c7c9f487f0553c46480f00dd68248278c89e394960286d037a12a8e", kill_on_drop: false }`
[INFO] [stdout] 93386bef8c7c9f487f0553c46480f00dd68248278c89e394960286d037a12a8e
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c96432546054d0fa677752fd0d1cda6db3ba1b2539f20a1f794abe1bdd709f15
[INFO] running `Command { std: "docker" "start" "-a" "c96432546054d0fa677752fd0d1cda6db3ba1b2539f20a1f794abe1bdd709f15", kill_on_drop: false }`
[INFO] [stderr]    Compiling std_nightly_to_stable_3db085279c83 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:556:9
[INFO] [stdout]     |
[INFO] [stdout] 556 |         #[must_use]
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:565:9
[INFO] [stdout]     |
[INFO] [stdout] 565 |         #[must_use]
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "c96432546054d0fa677752fd0d1cda6db3ba1b2539f20a1f794abe1bdd709f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c96432546054d0fa677752fd0d1cda6db3ba1b2539f20a1f794abe1bdd709f15", kill_on_drop: false }`
[INFO] [stdout] c96432546054d0fa677752fd0d1cda6db3ba1b2539f20a1f794abe1bdd709f15
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 761cb6f2a2f0be18cac90b66359a15b84994dc16179343b71bb0ac5ac4164382
[INFO] running `Command { std: "docker" "start" "-a" "761cb6f2a2f0be18cac90b66359a15b84994dc16179343b71bb0ac5ac4164382", kill_on_drop: false }`
[INFO] [stderr]    Compiling std_nightly_to_stable_3db085279c83 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:556:9
[INFO] [stdout]     |
[INFO] [stdout] 556 |         #[must_use]
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:565:9
[INFO] [stdout]     |
[INFO] [stdout] 565 |         #[must_use]
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:556:9
[INFO] [stdout]     |
[INFO] [stdout] 556 |         #[must_use]
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:565:9
[INFO] [stdout]     |
[INFO] [stdout] 565 |         #[must_use]
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "761cb6f2a2f0be18cac90b66359a15b84994dc16179343b71bb0ac5ac4164382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "761cb6f2a2f0be18cac90b66359a15b84994dc16179343b71bb0ac5ac4164382", kill_on_drop: false }`
[INFO] [stdout] 761cb6f2a2f0be18cac90b66359a15b84994dc16179343b71bb0ac5ac4164382
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb89b6e21a23ac15403ea07f256d2c0a653754dd2fd5c39b508f2abc0486c6b1
[INFO] running `Command { std: "docker" "start" "-a" "eb89b6e21a23ac15403ea07f256d2c0a653754dd2fd5c39b508f2abc0486c6b1", kill_on_drop: false }`
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]    --> src/lib.rs:556:9
[INFO] [stderr]     |
[INFO] [stderr] 556 |         #[must_use]
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]    --> src/lib.rs:565:9
[INFO] [stderr]     |
[INFO] [stderr] 565 |         #[must_use]
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `std_nightly_to_stable_3db085279c83` (lib) generated 2 warnings
[INFO] [stderr] warning: `std_nightly_to_stable_3db085279c83` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/std_nightly_to_stable_3db085279c83-9a4bd77277a70300)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test xcore::iter::test_is_sorted ... ok
[INFO] [stdout] test xcore::test_array_windows_count ... ok
[INFO] [stdout] test xcore::test_array_windows_nth_back ... ok
[INFO] [stdout] test xcore::test_array_windows_infer ... ok
[INFO] [stdout] test xcore::test_array_windows_nth ... ok
[INFO] [stdout] test xcore::test_is_sorted ... ok
[INFO] [stdout] test xcore::test_slice_partition_dedup_by ... ok
[INFO] [stdout] test xcore::test_slice_partition_dedup_empty ... ok
[INFO] [stdout] test xcore::test_slice_partition_dedup_partialeq ... ok
[INFO] [stdout] test xstd::io::io_slice_advance_slices ... ok
[INFO] [stdout] test xstd::io::io_slice_mut_advance_slices ... ok
[INFO] [stdout] test xstd::io::test_write_all_vectored ... ok
[INFO] [stdout] test xcore::test_slice_partition_dedup_multiple_ident ... ok
[INFO] [stdout] test xcore::test_slice_partition_dedup_one ... ok
[INFO] [stderr]    Doc-tests std_nightly_to_stable_3db085279c83
[INFO] [stdout] test xstd::io::io_slice_mut_advance_slices_beyond_total_length - should panic ... ok
[INFO] [stdout] test xstd::io::io_slice_advance_slices_beyond_total_length - should panic ... ok
[INFO] [stdout] test xstd::io::io_slice_mut_advance_slices_empty_slice - should panic ... ok
[INFO] [stdout] test xstd::io::io_slice_advance_slices_empty_slice - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - xcore::SliceExt::partition_dedup_pr54058 (line 453) ... FAILED
[INFO] [stdout] test src/lib.rs - xcore::SliceExt::is_sorted_pr118811 (line 318) ... FAILED
[INFO] [stdout] test src/lib.rs - xcore::SliceExt::is_sorted_by_key_pr118811 (line 388) ... FAILED
[INFO] [stdout] test src/lib.rs - xcore::iter::Iterator::is_sorted_by_key_pr118811 (line 131) ... FAILED
[INFO] [stdout] test src/lib.rs - xcore::SliceExt::array_windows_pr75026 (line 422) ... FAILED
[INFO] [stdout] test src/lib.rs - xcore::SliceExt::is_sorted_by_pr118811 (line 352) ... FAILED
[INFO] [stdout] test src/lib.rs - xcore::iter::Iterator::is_sorted_by_pr118811 (line 71) ... FAILED
[INFO] [stdout] test src/lib.rs - xcore::SliceExt::partition_dedup_by_key_pr54058 (line 524) ... FAILED
[INFO] [stdout] test src/lib.rs - xstd::io::IoSliceExt::advance_slices_pr116070 (line 992) ... FAILED
[INFO] [stdout] test src/lib.rs - xstd::io::IoSliceExt::advance_pr116070 (line 954) ... FAILED
[INFO] [stdout] test src/lib.rs - xcore::SliceExt::partition_dedup_by_pr54058 (line 493) ... FAILED
[INFO] [stdout] test src/lib.rs - xstd::io::IoSliceMutExt::advance_slices_pr116070 (line 879) ... FAILED
[INFO] [stdout] test src/lib.rs - xstd::io::IoSliceMutExt::advance_pr116070 (line 841) ... FAILED
[INFO] [stdout] test src/lib.rs - xcore::iter::Iterator::is_sorted_pr118811 (line 37) ... FAILED
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/lib.rs - xstd::io::Write::write_all_vectored_pr116070 (line 1181) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - xcore::SliceExt::partition_dedup_pr54058 (line 453) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:453:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(slice_partition_dedup)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xcore::SliceExt::is_sorted_pr118811 (line 318) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:318:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_sorted` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:318:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xcore::SliceExt::is_sorted_by_key_pr118811 (line 388) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:388:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_sorted` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:388:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xcore::iter::Iterator::is_sorted_by_key_pr118811 (line 131) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:131:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_sorted` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:131:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xcore::SliceExt::array_windows_pr75026 (line 422) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:422:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(array_windows)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xcore::SliceExt::is_sorted_by_pr118811 (line 352) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:352:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_sorted` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:352:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xcore::iter::Iterator::is_sorted_by_pr118811 (line 71) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:71:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_sorted` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:71:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xcore::SliceExt::partition_dedup_by_key_pr54058 (line 524) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:524:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(slice_partition_dedup)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xstd::io::IoSliceExt::advance_slices_pr116070 (line 992) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:992:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(io_slice_advance)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `io_slice_advance` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:992:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(io_slice_advance)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xstd::io::IoSliceExt::advance_pr116070 (line 954) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:954:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(io_slice_advance)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `io_slice_advance` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:954:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(io_slice_advance)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xcore::SliceExt::partition_dedup_by_pr54058 (line 493) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:493:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(slice_partition_dedup)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xstd::io::IoSliceMutExt::advance_slices_pr116070 (line 879) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:879:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(io_slice_advance)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `io_slice_advance` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:879:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(io_slice_advance)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xstd::io::IoSliceMutExt::advance_pr116070 (line 841) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:841:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(io_slice_advance)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `io_slice_advance` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:841:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(io_slice_advance)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xcore::iter::Iterator::is_sorted_pr118811 (line 37) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:37:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_sorted` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:37:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_sorted)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - xstd::io::Write::write_all_vectored_pr116070 (line 1181) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1182:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(write_all_vectored)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - xcore::SliceExt::array_windows_pr75026 (line 422)
[INFO] [stdout]     src/lib.rs - xcore::SliceExt::is_sorted_by_key_pr118811 (line 388)
[INFO] [stdout]     src/lib.rs - xcore::SliceExt::is_sorted_by_pr118811 (line 352)
[INFO] [stdout]     src/lib.rs - xcore::SliceExt::is_sorted_pr118811 (line 318)
[INFO] [stdout]     src/lib.rs - xcore::SliceExt::partition_dedup_by_key_pr54058 (line 524)
[INFO] [stdout]     src/lib.rs - xcore::SliceExt::partition_dedup_by_pr54058 (line 493)
[INFO] [stdout]     src/lib.rs - xcore::SliceExt::partition_dedup_pr54058 (line 453)
[INFO] [stdout]     src/lib.rs - xcore::iter::Iterator::is_sorted_by_key_pr118811 (line 131)
[INFO] [stdout]     src/lib.rs - xcore::iter::Iterator::is_sorted_by_pr118811 (line 71)
[INFO] [stdout]     src/lib.rs - xcore::iter::Iterator::is_sorted_pr118811 (line 37)
[INFO] [stdout]     src/lib.rs - xstd::io::IoSliceExt::advance_pr116070 (line 954)
[INFO] [stdout]     src/lib.rs - xstd::io::IoSliceExt::advance_slices_pr116070 (line 992)
[INFO] [stdout]     src/lib.rs - xstd::io::IoSliceMutExt::advance_pr116070 (line 841)
[INFO] [stdout]     src/lib.rs - xstd::io::IoSliceMutExt::advance_slices_pr116070 (line 879)
[INFO] [stdout]     src/lib.rs - xstd::io::Write::write_all_vectored_pr116070 (line 1181)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 15 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eb89b6e21a23ac15403ea07f256d2c0a653754dd2fd5c39b508f2abc0486c6b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb89b6e21a23ac15403ea07f256d2c0a653754dd2fd5c39b508f2abc0486c6b1", kill_on_drop: false }`
[INFO] [stdout] eb89b6e21a23ac15403ea07f256d2c0a653754dd2fd5c39b508f2abc0486c6b1
