[INFO] fetching crate array-append 0.1.0...
[INFO] testing array-append-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate array-append 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate array-append 0.1.0
[INFO] finished tweaking crates.io crate array-append 0.1.0
[INFO] tweaked toml for crates.io crate array-append 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate array-append 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d415efe60f699c1415d2608760be22d01a8899309dbb225b84a16d654b9f10c9
[INFO] running `Command { std: "docker" "start" "-a" "d415efe60f699c1415d2608760be22d01a8899309dbb225b84a16d654b9f10c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d415efe60f699c1415d2608760be22d01a8899309dbb225b84a16d654b9f10c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d415efe60f699c1415d2608760be22d01a8899309dbb225b84a16d654b9f10c9", kill_on_drop: false }`
[INFO] [stdout] d415efe60f699c1415d2608760be22d01a8899309dbb225b84a16d654b9f10c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58431385b8011635015bf98ca78cf72c69d83a0b5b23dc7b8bcb5802ec232a2f
[INFO] running `Command { std: "docker" "start" "-a" "58431385b8011635015bf98ca78cf72c69d83a0b5b23dc7b8bcb5802ec232a2f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling array-append v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]   --> src/lib.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 | #![cfg_attr(not(std), no_std)]
[INFO] [stdout]    |                 ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "58431385b8011635015bf98ca78cf72c69d83a0b5b23dc7b8bcb5802ec232a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58431385b8011635015bf98ca78cf72c69d83a0b5b23dc7b8bcb5802ec232a2f", kill_on_drop: false }`
[INFO] [stdout] 58431385b8011635015bf98ca78cf72c69d83a0b5b23dc7b8bcb5802ec232a2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e41d62d6763b4f8a40080a16750c007af1dd3abed609325dc0dc1f3473f3ccdb
[INFO] running `Command { std: "docker" "start" "-a" "e41d62d6763b4f8a40080a16750c007af1dd3abed609325dc0dc1f3473f3ccdb", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]   --> src/lib.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 | #![cfg_attr(not(std), no_std)]
[INFO] [stdout]    |                 ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling array-append v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]   --> src/lib.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 | #![cfg_attr(not(std), no_std)]
[INFO] [stdout]    |                 ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "e41d62d6763b4f8a40080a16750c007af1dd3abed609325dc0dc1f3473f3ccdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41d62d6763b4f8a40080a16750c007af1dd3abed609325dc0dc1f3473f3ccdb", kill_on_drop: false }`
[INFO] [stdout] e41d62d6763b4f8a40080a16750c007af1dd3abed609325dc0dc1f3473f3ccdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b0f491ff3fb9c3437b02ccf350e4a9263a9a0fa172ead6e77dbb8a97f2ff0e7f
[INFO] running `Command { std: "docker" "start" "-a" "b0f491ff3fb9c3437b02ccf350e4a9263a9a0fa172ead6e77dbb8a97f2ff0e7f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: unexpected `cfg` condition name: `std`
[INFO] [stderr]   --> src/lib.rs:80:17
[INFO] [stderr]    |
[INFO] [stderr] 80 | #![cfg_attr(not(std), no_std)]
[INFO] [stderr]    |                 ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `array-append` (lib) generated 1 warning
[INFO] [stderr] warning: `array-append` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/array_append-44b8e81e759718b1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests array_append
[INFO] [stderr] warning: unknown lint: `rustdoc::missing_doc_code_examples`
[INFO] [stderr]   --> src/lib.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 | #![deny(rustdoc::missing_doc_code_examples)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the `rustdoc::missing_doc_code_examples` lint is unstable
[INFO] [stderr]    = note: see issue #101730 <https://github.com/rust-lang/rust/issues/101730> for more information
[INFO] [stderr]    = help: add `#![feature(rustdoc_missing_doc_code_examples)]` to the crate attributes to enable
[INFO] [stderr]    = note: this compiler was built on 2025-11-06; consider upgrading it if it is out of date
[INFO] [stderr]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - split_end (line 194) ... FAILED
[INFO] [stdout] test src/lib.rs - split (line 163) ... FAILED
[INFO] [stdout] test src/lib.rs - concat (line 97) ... FAILED
[INFO] [stdout] test src/lib.rs - push_right (line 124) ... FAILED
[INFO] [stdout] test src/lib.rs - push_left (line 143) ... FAILED
[INFO] [stdout] test src/lib.rs - pop_left (line 241) ... ok
[INFO] [stdout] test src/lib.rs - pop_right (line 223) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - split_end (line 194) stdout ----
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `[(); array_append::::split_end::{constant#0}] well-formed`
[INFO] [stdout]    --> src/lib.rs:199:21
[INFO] [stdout]     |
[INFO] [stdout] 199 | let (left, right) = split_end::<5, 3, usize>(arr);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `split_end`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:203:94
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub fn split_end<const N: usize, const M: usize, T>(a: [T; N]) -> ([T; N - M], [T; M]) where [(); N - M]: {
[INFO] [stdout]     |                                                                                              ^^^^^^^^^^^ required by this bound in `split_end`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0275`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - split (line 163) stdout ----
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `[(); array_append::::split::{constant#0}] well-formed`
[INFO] [stdout]    --> src/lib.rs:171:21
[INFO] [stdout]     |
[INFO] [stdout] 171 | let (left, right) = split::<5, 3, usize>(arr);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `array_append::split`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:175:90
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub fn split<const N: usize, const M: usize, T>(a: [T; N]) -> ([T; M], [T; N - M]) where [(); N - M]: {
[INFO] [stdout]     |                                                                                          ^^^^^^^^^^^ required by this bound in `split`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0275`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - concat (line 97) stdout ----
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `[(); array_append::::concat::{constant#0}] well-formed`
[INFO] [stdout]    --> src/lib.rs:103:11
[INFO] [stdout]     |
[INFO] [stdout] 103 | let arr = concat(arr1, arr2);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `array_append::concat`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:106:92
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn concat<const N: usize, const M: usize, T>(a: [T; N], b: [T; M]) -> [T; N + M] where [(); N + M]: {
[INFO] [stdout]     |                                                                                            ^^^^^^^^^^^ required by this bound in `concat`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0275`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - push_right (line 124) stdout ----
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `[(); array_append::::push_right::{constant#0}] well-formed`
[INFO] [stdout]    --> src/lib.rs:130:16
[INFO] [stdout]     |
[INFO] [stdout] 130 | let appended = push_right(arr, elem);
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `push`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:133:75
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub fn push_right<const N: usize, T>(a: [T; N], b: T) -> [T; N + 1] where [(); N + 1]: {
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^ required by this bound in `push_right`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0275`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - push_left (line 143) stdout ----
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `[(); array_append::::push_left::{constant#0}] well-formed`
[INFO] [stdout]    --> src/lib.rs:149:17
[INFO] [stdout]     |
[INFO] [stdout] 149 | let prepended = push_left(arr, elem);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `push_left`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:152:74
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub fn push_left<const N: usize, T>(a: [T; N], b: T) -> [T; 1 + N] where [(); 1 + N]: {
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^ required by this bound in `push_left`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0275`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - concat (line 97)
[INFO] [stdout]     src/lib.rs - push_left (line 143)
[INFO] [stdout]     src/lib.rs - push_right (line 124)
[INFO] [stdout]     src/lib.rs - split (line 163)
[INFO] [stdout]     src/lib.rs - split_end (line 194)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 5 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.60s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "b0f491ff3fb9c3437b02ccf350e4a9263a9a0fa172ead6e77dbb8a97f2ff0e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0f491ff3fb9c3437b02ccf350e4a9263a9a0fa172ead6e77dbb8a97f2ff0e7f", kill_on_drop: false }`
[INFO] [stdout] b0f491ff3fb9c3437b02ccf350e4a9263a9a0fa172ead6e77dbb8a97f2ff0e7f
