[INFO] fetching crate nu-serde 0.44.0...
[INFO] testing nu-serde-0.44.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate nu-serde 0.44.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate nu-serde 0.44.0
[INFO] finished tweaking crates.io crate nu-serde 0.44.0
[INFO] tweaked toml for crates.io crate nu-serde 0.44.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nu-serde 0.44.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 88 packages to latest compatible versions
[INFO] [stderr]       Adding bigdecimal v0.3.1 (available: v0.4.9)
[INFO] [stderr]       Adding nu-protocol v0.44.0 (available: v0.108.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 078c03e405ea4748296c5e9600e2322fdc9ac9c23ae830b4f43daac9ce90d66c
[INFO] running `Command { std: "docker" "start" "-a" "078c03e405ea4748296c5e9600e2322fdc9ac9c23ae830b4f43daac9ce90d66c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "078c03e405ea4748296c5e9600e2322fdc9ac9c23ae830b4f43daac9ce90d66c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "078c03e405ea4748296c5e9600e2322fdc9ac9c23ae830b4f43daac9ce90d66c", kill_on_drop: false }`
[INFO] [stdout] 078c03e405ea4748296c5e9600e2322fdc9ac9c23ae830b4f43daac9ce90d66c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3a41553e434f414bc7003ba44cfcad04f4adfa652bc8e0326b7e9e9f313841e
[INFO] running `Command { std: "docker" "start" "-a" "e3a41553e434f414bc7003ba44cfcad04f4adfa652bc8e0326b7e9e9f313841e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling utf8-width v0.1.7
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling nu-ansi-term v0.44.0
[INFO] [stderr]    Compiling pretty v0.5.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling getset v0.1.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling nu-source v0.44.0
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling byte-unit v4.0.19
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling chrono-humanize v0.2.3
[INFO] [stderr]    Compiling bigdecimal v0.3.1
[INFO] [stderr]    Compiling nu-errors v0.44.0
[INFO] [stderr]    Compiling nu-protocol v0.44.0
[INFO] [stderr]    Compiling nu-serde v0.44.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.81s
[INFO] running `Command { std: "docker" "inspect" "e3a41553e434f414bc7003ba44cfcad04f4adfa652bc8e0326b7e9e9f313841e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3a41553e434f414bc7003ba44cfcad04f4adfa652bc8e0326b7e9e9f313841e", kill_on_drop: false }`
[INFO] [stdout] e3a41553e434f414bc7003ba44cfcad04f4adfa652bc8e0326b7e9e9f313841e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cb07e03f617a0306f51ae9eff134423600558aaccf5793ef778675969ce5c42
[INFO] running `Command { std: "docker" "start" "-a" "3cb07e03f617a0306f51ae9eff134423600558aaccf5793ef778675969ce5c42", kill_on_drop: false }`
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling insta v1.43.2
[INFO] [stderr]    Compiling nu-serde v0.44.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `Command { std: "docker" "inspect" "3cb07e03f617a0306f51ae9eff134423600558aaccf5793ef778675969ce5c42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb07e03f617a0306f51ae9eff134423600558aaccf5793ef778675969ce5c42", kill_on_drop: false }`
[INFO] [stdout] 3cb07e03f617a0306f51ae9eff134423600558aaccf5793ef778675969ce5c42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9d7c5ec7afe5a62f43b22f72c411e8b30460aa5d0ac28e13f9370b4a8468b87
[INFO] running `Command { std: "docker" "start" "-a" "e9d7c5ec7afe5a62f43b22f72c411e8b30460aa5d0ac28e13f9370b4a8468b87", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nu_serde-50d1b25874116701)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::it_works_with_single_integers ... ok
[INFO] [stdout] test test::it_works_with_lists_of_values ... ok
[INFO] [stdout] test test::it_works_with_complex_structs ... ok
[INFO] [stderr]    Doc-tests nu_serde
[INFO] [stdout] test test::it_serializes_return_value_list ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e9d7c5ec7afe5a62f43b22f72c411e8b30460aa5d0ac28e13f9370b4a8468b87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9d7c5ec7afe5a62f43b22f72c411e8b30460aa5d0ac28e13f9370b4a8468b87", kill_on_drop: false }`
[INFO] [stdout] e9d7c5ec7afe5a62f43b22f72c411e8b30460aa5d0ac28e13f9370b4a8468b87