[INFO] fetching crate serde-map-to-array 3.0.0...
[INFO] testing serde-map-to-array-3.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate serde-map-to-array 3.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate serde-map-to-array 3.0.0
[INFO] finished tweaking crates.io crate serde-map-to-array 3.0.0
[INFO] tweaked toml for crates.io crate serde-map-to-array 3.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-map-to-array 3.0.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde-map-to-array 3.0.0 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 316a865fefb8c56c16d067e86ec1f579f30141e8a3c3cde3f4ebd04faeff0d87
[INFO] running `Command { std: "docker" "start" "-a" "316a865fefb8c56c16d067e86ec1f579f30141e8a3c3cde3f4ebd04faeff0d87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "316a865fefb8c56c16d067e86ec1f579f30141e8a3c3cde3f4ebd04faeff0d87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "316a865fefb8c56c16d067e86ec1f579f30141e8a3c3cde3f4ebd04faeff0d87", kill_on_drop: false }`
[INFO] [stdout] 316a865fefb8c56c16d067e86ec1f579f30141e8a3c3cde3f4ebd04faeff0d87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ff2340184fe9368ede23e1def20597246837b478dc0cbef0da15750038c9858
[INFO] running `Command { std: "docker" "start" "-a" "1ff2340184fe9368ede23e1def20597246837b478dc0cbef0da15750038c9858", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling serde-map-to-array v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `Command { std: "docker" "inspect" "1ff2340184fe9368ede23e1def20597246837b478dc0cbef0da15750038c9858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff2340184fe9368ede23e1def20597246837b478dc0cbef0da15750038c9858", kill_on_drop: false }`
[INFO] [stdout] 1ff2340184fe9368ede23e1def20597246837b478dc0cbef0da15750038c9858
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6f47d4ba35c20987961a7c8e08a08216926794bfeb8c777799ebe22fc882353
[INFO] running `Command { std: "docker" "start" "-a" "d6f47d4ba35c20987961a7c8e08a08216926794bfeb8c777799ebe22fc882353", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling hashbrown v0.15.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling winnow v0.7.10
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling hash_hasher v2.0.4
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling bincode v2.0.1
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling serde-map-to-array v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 17.73s
[INFO] running `Command { std: "docker" "inspect" "d6f47d4ba35c20987961a7c8e08a08216926794bfeb8c777799ebe22fc882353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6f47d4ba35c20987961a7c8e08a08216926794bfeb8c777799ebe22fc882353", kill_on_drop: false }`
[INFO] [stdout] d6f47d4ba35c20987961a7c8e08a08216926794bfeb8c777799ebe22fc882353
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 48d9ca982ccaa9a16fb690456681f290eed1b0833fd6bf2f869793fdb798bd5e
[INFO] running `Command { std: "docker" "start" "-a" "48d9ca982ccaa9a16fb690456681f290eed1b0833fd6bf2f869793fdb798bd5e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_map_to_array-48747e307ccd558c)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::btreemap::encoded_json_should_be_equivalent_to_mapped_types ... ok
[INFO] [stdout] test tests::btreemap::encoded_toml_should_be_equivalent_to_mapped_types ... ok
[INFO] [stdout] test tests::btreemap::should_encode_with_custom_labels ... ok
[INFO] [stdout] test tests::btreemap::should_encode_with_custom_map_and_labels ... ok
[INFO] [stdout] test tests::btreemap::should_encode_with_default_labels ... ok
[INFO] [stdout] test tests::btreemap::should_encode_empty_map ... ok
[INFO] [stderr]    Doc-tests serde_map_to_array
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 62) ... ok
[INFO] [stdout] test src/lib.rs - (line 146) ... ok
[INFO] [stdout] test src/lib.rs - (line 97) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 130) ... ok
[INFO] [stdout] test src/lib.rs - (line 40) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 97) stdout ----
[INFO] [stdout] error: struct `Data` is never constructed
[INFO] [stdout]   --> src/lib.rs:124:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct Data {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout]  1 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 97)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.64s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "48d9ca982ccaa9a16fb690456681f290eed1b0833fd6bf2f869793fdb798bd5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48d9ca982ccaa9a16fb690456681f290eed1b0833fd6bf2f869793fdb798bd5e", kill_on_drop: false }`
[INFO] [stdout] 48d9ca982ccaa9a16fb690456681f290eed1b0833fd6bf2f869793fdb798bd5e