[INFO] fetching crate shannon-nu-utils 0.111.4...
[INFO] testing shannon-nu-utils-0.111.4 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate shannon-nu-utils 0.111.4 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate shannon-nu-utils 0.111.4
[INFO] finished tweaking crates.io crate shannon-nu-utils 0.111.4
[INFO] tweaked toml for crates.io crate shannon-nu-utils 0.111.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shannon-nu-utils 0.111.4 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shannon-nu-utils 0.111.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c1482e61b05da17dac888b0609838f42338a4ebdc5e8986e273b9f68404a4d3
[INFO] running `Command { std: "docker" "start" "-a" "4c1482e61b05da17dac888b0609838f42338a4ebdc5e8986e273b9f68404a4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c1482e61b05da17dac888b0609838f42338a4ebdc5e8986e273b9f68404a4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c1482e61b05da17dac888b0609838f42338a4ebdc5e8986e273b9f68404a4d3", kill_on_drop: false }`
[INFO] [stdout] 4c1482e61b05da17dac888b0609838f42338a4ebdc5e8986e273b9f68404a4d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cae539d7d0250406f6a83bf31e5ad901bd0b3661fb514c7b2dcfbe7dd6b51b3
[INFO] running `Command { std: "docker" "start" "-a" "5cae539d7d0250406f6a83bf31e5ad901bd0b3661fb514c7b2dcfbe7dd6b51b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling vte v0.14.1
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling castaway v0.2.4
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling num-format v0.4.4
[INFO] [stderr]    Compiling derive_more-impl v2.1.1
[INFO] [stderr]    Compiling lscolors v0.21.0
[INFO] [stderr]    Compiling sys-locale v0.3.2
[INFO] [stderr]    Compiling lean_string v0.5.1
[INFO] [stderr]    Compiling strip-ansi-escapes v0.2.1
[INFO] [stderr]    Compiling buf-trait v0.4.1
[INFO] [stderr]    Compiling byteyarn v0.5.1
[INFO] [stderr]    Compiling derive_more v2.1.1
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling signal-hook-mio v0.2.5
[INFO] [stderr]    Compiling crossterm v0.29.0
[INFO] [stderr]    Compiling fancy-regex v0.17.0
[INFO] [stderr]    Compiling shannon-nu-utils v0.111.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.66s
[INFO] running `Command { std: "docker" "inspect" "5cae539d7d0250406f6a83bf31e5ad901bd0b3661fb514c7b2dcfbe7dd6b51b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cae539d7d0250406f6a83bf31e5ad901bd0b3661fb514c7b2dcfbe7dd6b51b3", kill_on_drop: false }`
[INFO] [stdout] 5cae539d7d0250406f6a83bf31e5ad901bd0b3661fb514c7b2dcfbe7dd6b51b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9c9643d370a416de3da0dd3bb9e44dbf4c08748aa23d66ce50ceef74729154f
[INFO] running `Command { std: "docker" "start" "-a" "c9c9643d370a416de3da0dd3bb9e44dbf4c08748aa23d66ce50ceef74729154f", kill_on_drop: false }`
[INFO] [stderr]    Compiling shannon-nu-utils v0.111.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "c9c9643d370a416de3da0dd3bb9e44dbf4c08748aa23d66ce50ceef74729154f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c9643d370a416de3da0dd3bb9e44dbf4c08748aa23d66ce50ceef74729154f", kill_on_drop: false }`
[INFO] [stdout] c9c9643d370a416de3da0dd3bb9e44dbf4c08748aa23d66ce50ceef74729154f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 90848ff37ce6a2ffa89adb3e7926a82cb33368c7fe16faab0713a8de27375d49
[INFO] running `Command { std: "docker" "start" "-a" "90848ff37ce6a2ffa89adb3e7926a82cb33368c7fe16faab0713a8de27375d49", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shannon_nu_utils-889ec0da8c1ee72a)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test split_read::tests::all_empty ... ok
[INFO] [stdout] test split_read::tests::simple ... ok
[INFO] [stdout] test split_read::tests::complex_delimiter ... ok
[INFO] [stdout] test split_read::tests::with_empty_fields ... ok
[INFO] [stdout] test split_read::tests::delimiter_spread_across_reads ... ok
[INFO] [stdout] test strings::unique::tests::macro_works ... ok
[INFO] [stdout] test strings::shared::tests::macro_works ... ok
[INFO] [stdout] test sync::keyed_lazy_lock::tests::initializes_each_key_separately ... ok
[INFO] [stdout] test sync::keyed_lazy_lock::tests::initializes_once_per_key ... ok
[INFO] [stdout] test sync::keyed_lazy_lock::tests::retains_value_address_after_rehash ... ok
[INFO] [stdout] test sync::keyed_lazy_lock::tests::initializes_once_with_concurrent_callers ... ok
[INFO] [stdout] test nu_cow::tests::static_to_dynamic_roundtrip ... ok
[INFO] [stdout] test split_read::tests::empty_delimiter - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/utils-1bbe9f5a43d33cf0)
[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 shannon_nu_utils
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/downcast.rs - downcast::downcast (line 4) ... FAILED
[INFO] [stdout] test src/flatten_json.rs - flatten_json::JsonFlattener::preserve_arrays (line 27) ... FAILED
[INFO] [stdout] test src/flatten_json.rs - flatten_json::JsonFlattener<'_>::new (line 62) ... FAILED
[INFO] [stdout] test src/flatten_json.rs - flatten_json::JsonFlattener::separator (line 13) ... FAILED
[INFO] [stdout] test src/flatten_json.rs - flatten_json::JsonFlattener (line 5) ... FAILED
[INFO] [stdout] test src/flatten_json.rs - flatten_json::JsonFlattener<'_> (line 46) ... FAILED
[INFO] [stdout] test src/flatten_json.rs - flatten_json::JsonFlattener<'_>::flatten (line 80) ... FAILED
[INFO] [stdout] test src/flatten_json.rs - flatten_json::JsonFlattener::alt_array_flattening (line 20) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/downcast.rs - downcast::downcast (line 4) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `nu_utils`
[INFO] [stdout]  --> src/downcast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use nu_utils::downcast;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `nu_utils`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `nu_utils`, use `cargo add nu_utils` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/flatten_json.rs - flatten_json::JsonFlattener::preserve_arrays (line 27) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `nu_utils`
[INFO] [stdout]   --> src/flatten_json.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use nu_utils;
[INFO] [stdout]    |     ^^^^^^^^ no external crate `nu_utils`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/flatten_json.rs - flatten_json::JsonFlattener<'_>::new (line 62) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `nu_utils`
[INFO] [stdout]   --> src/flatten_json.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | use nu_utils;
[INFO] [stdout]    |     ^^^^^^^^ no external crate `nu_utils`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/flatten_json.rs - flatten_json::JsonFlattener::separator (line 13) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `nu_utils`
[INFO] [stdout]   --> src/flatten_json.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use nu_utils;
[INFO] [stdout]    |     ^^^^^^^^ no external crate `nu_utils`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/flatten_json.rs - flatten_json::JsonFlattener (line 5) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `nu_utils`
[INFO] [stdout]  --> src/flatten_json.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use nu_utils;
[INFO] [stdout]   |     ^^^^^^^^ no external crate `nu_utils`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/flatten_json.rs - flatten_json::JsonFlattener<'_> (line 46) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `nu_utils`
[INFO] [stdout]   --> src/flatten_json.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | use nu_utils;
[INFO] [stdout]    |     ^^^^^^^^ no external crate `nu_utils`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/flatten_json.rs - flatten_json::JsonFlattener<'_>::flatten (line 80) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `nu_utils`
[INFO] [stdout]   --> src/flatten_json.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | use nu_utils;
[INFO] [stdout]    |     ^^^^^^^^ no external crate `nu_utils`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/flatten_json.rs - flatten_json::JsonFlattener::alt_array_flattening (line 20) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `nu_utils`
[INFO] [stdout]   --> src/flatten_json.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use nu_utils;
[INFO] [stdout]    |     ^^^^^^^^ no external crate `nu_utils`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/downcast.rs - downcast::downcast (line 4)
[INFO] [stdout]     src/flatten_json.rs - flatten_json::JsonFlattener (line 5)
[INFO] [stdout]     src/flatten_json.rs - flatten_json::JsonFlattener::alt_array_flattening (line 20)
[INFO] [stdout]     src/flatten_json.rs - flatten_json::JsonFlattener::preserve_arrays (line 27)
[INFO] [stdout]     src/flatten_json.rs - flatten_json::JsonFlattener::separator (line 13)
[INFO] [stdout]     src/flatten_json.rs - flatten_json::JsonFlattener<'_> (line 46)
[INFO] [stdout]     src/flatten_json.rs - flatten_json::JsonFlattener<'_>::flatten (line 80)
[INFO] [stdout]     src/flatten_json.rs - flatten_json::JsonFlattener<'_>::new (line 62)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 8 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.86s; merged doctests compilation took 0.38s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "90848ff37ce6a2ffa89adb3e7926a82cb33368c7fe16faab0713a8de27375d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90848ff37ce6a2ffa89adb3e7926a82cb33368c7fe16faab0713a8de27375d49", kill_on_drop: false }`
[INFO] [stdout] 90848ff37ce6a2ffa89adb3e7926a82cb33368c7fe16faab0713a8de27375d49
