[INFO] fetching crate nest_struct 0.5.5...
[INFO] checking nest_struct-0.5.5 against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] extracting crate nest_struct 0.5.5 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate nest_struct 0.5.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate nest_struct 0.5.5
[INFO] tweaked toml for crates.io crate nest_struct 0.5.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nest_struct 0.5.5 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 nest_struct 0.5.5 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c2fcd018be8b6b82ee8756857d07f0328c96a842762c848cd2903108b3422939
[INFO] running `Command { std: "docker" "start" "c2fcd018be8b6b82ee8756857d07f0328c96a842762c848cd2903108b3422939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2fcd018be8b6b82ee8756857d07f0328c96a842762c848cd2903108b3422939", 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" "c2fcd018be8b6b82ee8756857d07f0328c96a842762c848cd2903108b3422939" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2fcd018be8b6b82ee8756857d07f0328c96a842762c848cd2903108b3422939", 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" "c2fcd018be8b6b82ee8756857d07f0328c96a842762c848cd2903108b3422939" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking bytes v1.10.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking litemap v0.7.4
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking rustls-pki-types v1.11.0
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking icu_locid_transform_data v1.5.0
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking icu_properties_data v1.5.0
[INFO] [stderr]    Compiling cc v1.2.12
[INFO] [stderr]     Checking ryu v1.0.19
[INFO] [stderr]    Compiling httparse v1.10.0
[INFO] [stderr]     Checking icu_normalizer_data v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.138
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]    Compiling rustls v0.23.22
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]    Compiling prettyplease v0.2.29
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking toml_write v0.1.2
[INFO] [stderr]     Checking winnow v0.7.10
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking http v1.2.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking webpki-roots v0.26.8
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking tower-layer v0.3.3
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking rustls-pemfile v2.2.0
[INFO] [stderr]     Checking quote v1.0.38
[INFO] [stderr]     Checking ipnet v2.11.0
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking log v0.4.25
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking syn v2.0.98
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking convert_case v0.7.1
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]    Compiling ring v0.17.13
[INFO] [stderr]     Checking nest_struct v0.5.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:429:29
[INFO] [stdout]     |
[INFO] [stdout] 429 | ...                   quote! { struct Foo #group }.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] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `proc_macro2::TokenStream`
[INFO] [stdout]    --> src/lib.rs:433:66
[INFO] [stdout]     |
[INFO] [stdout] 433 | ...                   match syn::parse2::<DeriveInput>(quote! { enum Foo #group }.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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nest_struct` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c2fcd018be8b6b82ee8756857d07f0328c96a842762c848cd2903108b3422939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2fcd018be8b6b82ee8756857d07f0328c96a842762c848cd2903108b3422939", kill_on_drop: false }`
[INFO] [stdout] c2fcd018be8b6b82ee8756857d07f0328c96a842762c848cd2903108b3422939
