[INFO] fetching crate mmkv 0.9.3...
[INFO] checking mmkv-0.9.3 against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] extracting crate mmkv 0.9.3 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate mmkv 0.9.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mmkv 0.9.3
[INFO] tweaked toml for crates.io crate mmkv 0.9.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mmkv 0.9.3 on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mmkv 0.9.3 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" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 066497f14c4ae79c2e8931a178f25b7a5d48d65a4b124c07121d148c47a1974a
[INFO] running `Command { std: "docker" "start" "066497f14c4ae79c2e8931a178f25b7a5d48d65a4b124c07121d148c47a1974a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "066497f14c4ae79c2e8931a178f25b7a5d48d65a4b124c07121d148c47a1974a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "066497f14c4ae79c2e8931a178f25b7a5d48d65a4b124c07121d148c47a1974a" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "066497f14c4ae79c2e8931a178f25b7a5d48d65a4b124c07121d148c47a1974a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "066497f14c4ae79c2e8931a178f25b7a5d48d65a4b124c07121d148c47a1974a" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling thiserror v2.0.20
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling bytes v1.12.1
[INFO] [stderr]    Compiling libc v0.2.189
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.23
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]     Checking smoothutf8 v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.17
[INFO] [stderr]     Checking buffa v0.9.2
[INFO] [stderr]    Compiling getrandom v0.4.3
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling buffa-descriptor v0.9.2
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling mmkv-proc-macro-lib v0.0.3
[INFO] [stderr]    Compiling buffa-codegen v0.9.2
[INFO] [stderr]    Compiling buffa-build v0.9.2
[INFO] [stderr]    Compiling mmkv v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `UnknownFields`
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/mmkv/db31d3c3c029a717/out/kv.__view.rs:90:37
[INFO] [stdout]    |
[INFO] [stdout] 90 |             __buffa_unknown_fields: self.__buffa_unknown_fields.to_owned()?.into(),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 90 -             __buffa_unknown_fields: self.__buffa_unknown_fields.to_owned()?.into(),
[INFO] [stdout] 90 +             __buffa_unknown_fields: self.__buffa_unknown_fields.to_owned()?,
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 90 -             __buffa_unknown_fields: self.__buffa_unknown_fields.to_owned()?.into(),
[INFO] [stdout] 90 +             __buffa_unknown_fields: <UnknownFields as Into<_>>::into(self.__buffa_unknown_fields.to_owned()?),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mmkv` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `UnknownFields`
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/mmkv/db31d3c3c029a717/out/kv.__view.rs:90:37
[INFO] [stdout]    |
[INFO] [stdout] 90 |             __buffa_unknown_fields: self.__buffa_unknown_fields.to_owned()?.into(),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 90 -             __buffa_unknown_fields: self.__buffa_unknown_fields.to_owned()?.into(),
[INFO] [stdout] 90 +             __buffa_unknown_fields: self.__buffa_unknown_fields.to_owned()?,
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 90 -             __buffa_unknown_fields: self.__buffa_unknown_fields.to_owned()?.into(),
[INFO] [stdout] 90 +             __buffa_unknown_fields: <UnknownFields as Into<_>>::into(self.__buffa_unknown_fields.to_owned()?),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mmkv` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "066497f14c4ae79c2e8931a178f25b7a5d48d65a4b124c07121d148c47a1974a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "066497f14c4ae79c2e8931a178f25b7a5d48d65a4b124c07121d148c47a1974a", kill_on_drop: false }`
[INFO] [stdout] 066497f14c4ae79c2e8931a178f25b7a5d48d65a4b124c07121d148c47a1974a
