[INFO] fetching crate ser-write-json 0.3.1...
[INFO] testing ser-write-json-0.3.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ser-write-json 0.3.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ser-write-json 0.3.1
[INFO] finished tweaking crates.io crate ser-write-json 0.3.1
[INFO] tweaked toml for crates.io crate ser-write-json 0.3.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ser-write-json 0.3.1 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 ser-write-json 0.3.1 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ce98d905aecc89fc5bf94635d36d41c2b28aa4670f893a77ba34af5643f89679
[INFO] running `Command { std: "docker" "start" "-a" "ce98d905aecc89fc5bf94635d36d41c2b28aa4670f893a77ba34af5643f89679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce98d905aecc89fc5bf94635d36d41c2b28aa4670f893a77ba34af5643f89679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce98d905aecc89fc5bf94635d36d41c2b28aa4670f893a77ba34af5643f89679", kill_on_drop: false }`
[INFO] [stdout] ce98d905aecc89fc5bf94635d36d41c2b28aa4670f893a77ba34af5643f89679
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9583e3647673ba2a8eb71fb2443eb955df136f36301caac472d2a6e136e4d97a
[INFO] running `Command { std: "docker" "start" "-a" "9583e3647673ba2a8eb71fb2443eb955df136f36301caac472d2a6e136e4d97a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling ser-write v0.3.1
[INFO] [stderr]    Compiling ryu-js v1.0.2
[INFO] [stderr]    Compiling ser-write-json v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "9583e3647673ba2a8eb71fb2443eb955df136f36301caac472d2a6e136e4d97a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9583e3647673ba2a8eb71fb2443eb955df136f36301caac472d2a6e136e4d97a", kill_on_drop: false }`
[INFO] [stdout] 9583e3647673ba2a8eb71fb2443eb955df136f36301caac472d2a6e136e4d97a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4708feae0633f526b28054b6b7dc88ef340c20db331e3a9300e5db9ab44894a7
[INFO] running `Command { std: "docker" "start" "-a" "4708feae0633f526b28054b6b7dc88ef340c20db331e3a9300e5db9ab44894a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling serde_bytes v0.11.17
[INFO] [stderr]    Compiling ser-write-json v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 14.58s
[INFO] running `Command { std: "docker" "inspect" "4708feae0633f526b28054b6b7dc88ef340c20db331e3a9300e5db9ab44894a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4708feae0633f526b28054b6b7dc88ef340c20db331e3a9300e5db9ab44894a7", kill_on_drop: false }`
[INFO] [stdout] 4708feae0633f526b28054b6b7dc88ef340c20db331e3a9300e5db9ab44894a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 764bf5c9ec000cf550cfe476ab01766b33798f5f322b199f50c60d7cb0beaaae
[INFO] running `Command { std: "docker" "start" "-a" "764bf5c9ec000cf550cfe476ab01766b33798f5f322b199f50c60d7cb0beaaae", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ser_write_json-39268b5bb3844f9f)
[INFO] [stdout] 
[INFO] [stdout] running 67 tests
[INFO] [stdout] test de::tests::test_de_array ... ok
[INFO] [stdout] test de::tests::test_de_any ... ok
[INFO] [stdout] test base64::tests::test_base64_decode ... ok
[INFO] [stdout] test de::tests::test_de_bool ... ok
[INFO] [stdout] test base64::tests::test_base64_encode ... ok
[INFO] [stdout] test de::tests::test_de_char ... ok
[INFO] [stdout] test de::tests::test_de_enum_clike ... ok
[INFO] [stdout] test de::tests::test_de_bytes ... ok
[INFO] [stdout] test de::tests::test_de_error_string ... ok
[INFO] [stdout] test de::tests::test_de_floating_point ... ok
[INFO] [stdout] test de::tests::test_de_ignoring_extra_fields ... ok
[INFO] [stdout] test de::tests::test_de_integer ... ok
[INFO] [stdout] test de::tests::test_de_map_err ... ok
[INFO] [stdout] test de::tests::test_de_newtype_struct ... ok
[INFO] [stdout] test de::tests::test_de_newtype_variant ... ok
[INFO] [stdout] test de::tests::test_de_option ... ok
[INFO] [stdout] test de::tests::test_de_string ... ok
[INFO] [stdout] test de::tests::test_de_struct_bool ... ok
[INFO] [stdout] test de::tests::test_de_struct_variant ... ok
[INFO] [stdout] test de::tests::test_de_bytes_own ... ok
[INFO] [stdout] test de::tests::test_de_struct_option ... ok
[INFO] [stdout] test de::tests::test_de_struct_with_array_field ... ok
[INFO] [stdout] test de::tests::test_de_tuple_variant ... ok
[INFO] [stdout] test de::tests::test_de_unit ... ok
[INFO] [stdout] test ser::tests::test_json_bytes ... ok
[INFO] [stdout] test de::tests::test_de_struct_with_tuple_field ... ok
[INFO] [stdout] test ser::tests::test_json_map_err ... ok
[INFO] [stdout] test de::tests::test_deserializer ... ok
[INFO] [stdout] test de::tests::test_de_struct_i8 ... ok
[INFO] [stdout] test de::tests::test_de_struct_u8 ... ok
[INFO] [stdout] test de::tests::test_de_struct_f32 ... ok
[INFO] [stdout] test de::tests::test_de_map ... ok
[INFO] [stdout] test de::tests::test_de_wot ... ok
[INFO] [stdout] test ser::tests::test_json_bytes_owned ... ok
[INFO] [stdout] test ser::tests::test_json_string ... ok
[INFO] [stdout] test ser::tests::test_json_struct_to_array ... ok
[INFO] [stdout] test ser::tests::test_json_tuple ... ok
[INFO] [stdout] test ser::tests::test_json_map ... ok
[INFO] [stdout] test ser::tests::test_ser_error ... ok
[INFO] [stdout] test ser::tests::test_json_struct ... ok
[INFO] [stdout] test ser::tests::test_ser_newtype_variant ... ok
[INFO] [stdout] test ser::tests::test_ser_newtype_struct ... ok
[INFO] [stdout] test ser::tests::test_ser_str ... ok
[INFO] [stdout] test ser::tests::test_ser_error_string ... ok
[INFO] [stdout] test ser::tests::test_ser_array ... ok
[INFO] [stdout] test ser::tests::test_ser_enum ... ok
[INFO] [stdout] test ser::tests::test_ser_bool ... ok
[INFO] [stdout] test ser::tests::test_ser_serialize_bytes ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_ ... ok
[INFO] [stdout] test ser::tests::test_ser_string_collector ... ok
[INFO] [stdout] test de::tests::test_de_str ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_bool ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_i8 ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_f32 ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_option ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_u8 ... ok
[INFO] [stdout] test ser::tests::test_ser_struct_variant ... ok
[INFO] [stdout] test ser::tests::test_ser_tuple ... ok
[INFO] [stdout] test ser::tests::test_ser_tuple_struct ... ok
[INFO] [stdout] test ser::tests::test_ser_tuple_struct_roundtrip ... ok
[INFO] [stdout] test ser::tests::test_ser_tuple_variant ... ok
[INFO] [stdout] test ser::tests::test_ser_unit ... ok
[INFO] [stdout] test ser::tests::test_json_serializer ... ok
[INFO] [stdout] test ser::tests::test_json_enum ... ok
[INFO] [stdout] test de::tests::test_parse_str_content ... ok
[INFO] [stdout] test de::tests::test_de_struct_tuple ... ok
[INFO] [stdout] test de::tests::test_de_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 67 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ser_write_json
[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] running `Command { std: "docker" "inspect" "764bf5c9ec000cf550cfe476ab01766b33798f5f322b199f50c60d7cb0beaaae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "764bf5c9ec000cf550cfe476ab01766b33798f5f322b199f50c60d7cb0beaaae", kill_on_drop: false }`
[INFO] [stdout] 764bf5c9ec000cf550cfe476ab01766b33798f5f322b199f50c60d7cb0beaaae