[INFO] cloning repository https://github.com/c00t/fixed-type-id
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c00t/fixed-type-id" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc00t%2Ffixed-type-id", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc00t%2Ffixed-type-id'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f617e9d251ed97c0fedf898924bc1c1187ba1b4
[INFO] checking c00t/fixed-type-id against dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8 for pr-133502-26
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc00t%2Ffixed-type-id" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/c00t/fixed-type-id
[INFO] finished tweaking git repo https://github.com/c00t/fixed-type-id
[INFO] tweaked toml for git repo https://github.com/c00t/fixed-type-id written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/c00t/fixed-type-id on toolchain dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/c00t/fixed-type-id 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" "+dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.92
[INFO] [stderr]   Downloaded bytecheck_derive v0.8.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 40c7a5dd0d42e5a86f992581ea4795dfb767e62bd6a66a000537bd5b061bdd73
[INFO] running `Command { std: "docker" "start" "40c7a5dd0d42e5a86f992581ea4795dfb767e62bd6a66a000537bd5b061bdd73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40c7a5dd0d42e5a86f992581ea4795dfb767e62bd6a66a000537bd5b061bdd73", 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" "40c7a5dd0d42e5a86f992581ea4795dfb767e62bd6a66a000537bd5b061bdd73" "/opt/rustwide/cargo-home/bin/cargo" "+dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40c7a5dd0d42e5a86f992581ea4795dfb767e62bd6a66a000537bd5b061bdd73", 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" "40c7a5dd0d42e5a86f992581ea4795dfb767e62bd6a66a000537bd5b061bdd73" "/opt/rustwide/cargo-home/bin/cargo" "+dfbea5bc945a9d7ff017d3d4bfbd1af9295fe5b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling rapidhash v1.1.0
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking fixedstr-ext v0.5.8
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking winnow v0.6.20
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking indexmap v2.7.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking syn v2.0.90
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking fixed-revision-macros v0.1.0 (/opt/rustwide/workdir/fixed_revision_macros)
[INFO] [stdout] warning: unused import: `PathSegment`
[INFO] [stdout]  --> fixed_revision_macros/src/expand/reexport.rs:5:77
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{punctuated::Pair, spanned::Spanned, token, Generics, Ident, Path, PathSegment};
[INFO] [stdout]   |                                                                             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::panic`
[INFO] [stdout]  --> fixed_revision_macros/src/expand/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use core::panic;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DeserializeVisitor` and `EnumStructsVisitor`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | use de::{DeserializeVisitor, EnumStructsVisitor};
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ser::SerializeVisitor`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use ser::SerializeVisitor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spanned::Spanned`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | use syn::{spanned::Spanned, Ident};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `end_kw` is assigned to, but never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut end_kw = None;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_end_kw` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end_kw` is never read
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:211:21
[INFO] [stdout]     |
[INFO] [stdout] 211 |                     end_kw = Some(x.key);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `end_kw` is assigned to, but never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:447:13
[INFO] [stdout]     |
[INFO] [stdout] 447 |         let mut end_kw = None;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_end_kw` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end_kw` is never read
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:461:21
[INFO] [stdout]     |
[INFO] [stdout] 461 |                     end_kw = Some(x.key);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:273:9
[INFO] [stdout]     |
[INFO] [stdout] 273 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:273:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |         (true, _) => quote! {
[INFO] [stdout]     |         --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 266 |         (false, _) => quote! {
[INFO] [stdout]     |         ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 273 |         _ => {
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 478 |         _ => unimplemented!(),
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 436 |         (true, _) => quote! {
[INFO] [stdout]     |         --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 461 |         (false, _) => quote! {
[INFO] [stdout]     |         ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 478 |         _ => unimplemented!(),
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_fixedid_gen`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let skip_fixedid_gen = match (&ast.attrs.options.rkyv_support, &attrs.0.rkyv_support) {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_fixedid_gen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fields_name` is never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/mod.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 110 | impl Variant {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 111 |     /// Returns the name of the fields struct of this variant
[INFO] [stdout] 112 |     pub fn fields_name(&self, enum_name: &str) -> Ident {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_binding` is never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/mod.rs:268:12
[INFO] [stdout]     |
[INFO] [stdout] 267 | impl FieldName {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] 268 |     pub fn to_binding(&self) -> Ident {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `skip_fixedid_gen` and `default_version` are never read
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub struct ItemOptions {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 244 |     pub revision: Option<usize>,
[INFO] [stdout] 245 |     pub skip_fixedid_gen: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 246 |     pub fixed_id_prefix: Option<Path>,
[INFO] [stdout] 247 |     pub default_version: Option<usize>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ItemOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CalcDiscriminant` is never constructed
[INFO] [stdout]  --> fixed_revision_macros/src/expand/common.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CalcDiscriminant<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> fixed_revision_macros/src/expand/common.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a> CalcDiscriminant<'a> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(revision: usize, discriminants: &'a mut HashMap<Ident, u32>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GatherOverrides` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/common.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct GatherOverrides<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnumStructsVisitor` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/de.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct EnumStructsVisitor<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> fixed_revision_macros/src/expand/de.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<'a> EnumStructsVisitor<'a> {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] 18 |     pub fn new(revision: usize, stream: &'a mut TokenStream) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeVisitor` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/de.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct DeserializeVisitor<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeVariant` is never constructed
[INFO] [stdout]    --> fixed_revision_macros/src/expand/de.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub struct DeserializeVariant<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeFields` is never constructed
[INFO] [stdout]    --> fixed_revision_macros/src/expand/de.rs:335:12
[INFO] [stdout]     |
[INFO] [stdout] 335 | pub struct DeserializeFields<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeVisitor` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/ser.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct SerializeVisitor<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> fixed_revision_macros/src/expand/ser.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a> SerializeVisitor<'a> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(revision: usize, stream: &'a mut TokenStream) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeFields` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/ser.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct SerializeFields<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeVariant` is never constructed
[INFO] [stdout]    --> fixed_revision_macros/src/expand/ser.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct SerializeVariant<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling ptr_meta_derive v0.3.0
[INFO] [stderr]    Compiling bytecheck_derive v0.8.0
[INFO] [stderr]    Compiling munge_macro v0.4.1
[INFO] [stderr]    Compiling rkyv_derive v0.8.9
[INFO] [stdout] warning: unused import: `PathSegment`
[INFO] [stdout]  --> fixed_revision_macros/src/expand/reexport.rs:5:77
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{punctuated::Pair, spanned::Spanned, token, Generics, Ident, Path, PathSegment};
[INFO] [stdout]   |                                                                             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::panic`
[INFO] [stdout]  --> fixed_revision_macros/src/expand/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use core::panic;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DeserializeVisitor` and `EnumStructsVisitor`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | use de::{DeserializeVisitor, EnumStructsVisitor};
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ser::SerializeVisitor`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use ser::SerializeVisitor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spanned::Spanned`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | use syn::{spanned::Spanned, Ident};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `end_kw` is assigned to, but never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut end_kw = None;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_end_kw` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end_kw` is never read
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:211:21
[INFO] [stdout]     |
[INFO] [stdout] 211 |                     end_kw = Some(x.key);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `end_kw` is assigned to, but never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:447:13
[INFO] [stdout]     |
[INFO] [stdout] 447 |         let mut end_kw = None;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_end_kw` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end_kw` is never read
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:461:21
[INFO] [stdout]     |
[INFO] [stdout] 461 |                     end_kw = Some(x.key);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:273:9
[INFO] [stdout]     |
[INFO] [stdout] 273 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:273:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |         (true, _) => quote! {
[INFO] [stdout]     |         --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 266 |         (false, _) => quote! {
[INFO] [stdout]     |         ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 273 |         _ => {
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 478 |         _ => unimplemented!(),
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 436 |         (true, _) => quote! {
[INFO] [stdout]     |         --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 461 |         (false, _) => quote! {
[INFO] [stdout]     |         ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 478 |         _ => unimplemented!(),
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_fixedid_gen`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let skip_fixedid_gen = match (&ast.attrs.options.rkyv_support, &attrs.0.rkyv_support) {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_fixedid_gen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fields_name` is never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/mod.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 110 | impl Variant {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 111 |     /// Returns the name of the fields struct of this variant
[INFO] [stdout] 112 |     pub fn fields_name(&self, enum_name: &str) -> Ident {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_binding` is never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/mod.rs:268:12
[INFO] [stdout]     |
[INFO] [stdout] 267 | impl FieldName {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] 268 |     pub fn to_binding(&self) -> Ident {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `skip_fixedid_gen` and `default_version` are never read
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub struct ItemOptions {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 244 |     pub revision: Option<usize>,
[INFO] [stdout] 245 |     pub skip_fixedid_gen: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 246 |     pub fixed_id_prefix: Option<Path>,
[INFO] [stdout] 247 |     pub default_version: Option<usize>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ItemOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CalcDiscriminant` is never constructed
[INFO] [stdout]  --> fixed_revision_macros/src/expand/common.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CalcDiscriminant<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> fixed_revision_macros/src/expand/common.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a> CalcDiscriminant<'a> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(revision: usize, discriminants: &'a mut HashMap<Ident, u32>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GatherOverrides` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/common.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct GatherOverrides<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnumStructsVisitor` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/de.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct EnumStructsVisitor<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> fixed_revision_macros/src/expand/de.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<'a> EnumStructsVisitor<'a> {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] 18 |     pub fn new(revision: usize, stream: &'a mut TokenStream) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeVisitor` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/de.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct DeserializeVisitor<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeVariant` is never constructed
[INFO] [stdout]    --> fixed_revision_macros/src/expand/de.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub struct DeserializeVariant<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeFields` is never constructed
[INFO] [stdout]    --> fixed_revision_macros/src/expand/de.rs:335:12
[INFO] [stdout]     |
[INFO] [stdout] 335 | pub struct DeserializeFields<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeVisitor` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/ser.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct SerializeVisitor<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> fixed_revision_macros/src/expand/ser.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a> SerializeVisitor<'a> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(revision: usize, stream: &'a mut TokenStream) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeFields` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/ser.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct SerializeFields<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeVariant` is never constructed
[INFO] [stdout]    --> fixed_revision_macros/src/expand/ser.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct SerializeVariant<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking munge v0.4.1
[INFO] [stderr]     Checking ptr_meta v0.3.0
[INFO] [stderr]     Checking rancor v0.1.0
[INFO] [stderr]     Checking bytecheck v0.8.0
[INFO] [stderr]     Checking rend v0.5.2
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling fixed-type-id-macros v0.2.0
[INFO] [stderr]    Compiling fixed-type-id-macros v0.2.0 (/opt/rustwide/workdir/fixed_type_id_macros)
[INFO] [stderr]     Checking fixed-type-id v0.2.0 (/opt/rustwide/workdir/fixed_type_id)
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:557:13
[INFO] [stdout]     |
[INFO] [stdout] 557 |         use std::ops::Add;
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `some` and `u32` are never read
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:554:13
[INFO] [stdout]     |
[INFO] [stdout] 553 |         pub struct GenericType<T> {
[INFO] [stdout]     |                    ----------- fields in this struct
[INFO] [stdout] 554 |             some: T,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout] 555 |             u32: u32,
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `some_t`, `some_u`, and `u32` are never read
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:583:13
[INFO] [stdout]     |
[INFO] [stdout] 582 |         pub struct GenericType<T, U> {
[INFO] [stdout]     |                    ----------- fields in this struct
[INFO] [stdout] 583 |             some_t: T,
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 584 |             some_u: U,
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 585 |             u32: u32,
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `some_t`, `some_u`, and `u32` are never read
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:609:13
[INFO] [stdout]     |
[INFO] [stdout] 608 |         pub struct GenericType2<T, U> {
[INFO] [stdout]     |                    ------------ fields in this struct
[INFO] [stdout] 609 |             some_t: T,
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 610 |             some_u: U,
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 611 |             u32: u32,
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `some` and `u32` are never read
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:636:13
[INFO] [stdout]     |
[INFO] [stdout] 635 |         pub struct GenericType<T> {
[INFO] [stdout]     |                    ----------- fields in this struct
[INFO] [stdout] 636 |             some: T,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout] 637 |             u32: u32,
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `X` and `Y` are never constructed
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:640:13
[INFO] [stdout]     |
[INFO] [stdout] 639 |         pub enum EqualType<T> {
[INFO] [stdout]     |                  --------- variants in this enum
[INFO] [stdout] 640 |             X(T),
[INFO] [stdout]     |             ^
[INFO] [stdout] 641 |             Y(u32),
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:398:5
[INFO] [stdout]     |
[INFO] [stdout] 398 |     default const TYPE_NAME: &'static str = "NOT_IMPLEMENTED";
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:400:5
[INFO] [stdout]     |
[INFO] [stdout] 400 |     default const TYPE_ID: FixedId =
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:403:5
[INFO] [stdout]     |
[INFO] [stdout] 403 |     default const TYPE_VERSION: FixedVersion = FixedVersion::new(0, 0, 0);
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:405:5
[INFO] [stdout]     |
[INFO] [stdout] 405 |     default fn ty_name(&self) -> &'static str {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:409:5
[INFO] [stdout]     |
[INFO] [stdout] 409 |     default fn ty_id(&self) -> FixedId {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 |     default fn ty_version(&self) -> FixedVersion {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:398:5
[INFO] [stdout]     |
[INFO] [stdout] 398 |     default const TYPE_NAME: &'static str = "NOT_IMPLEMENTED";
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:400:5
[INFO] [stdout]     |
[INFO] [stdout] 400 |     default const TYPE_ID: FixedId =
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:403:5
[INFO] [stdout]     |
[INFO] [stdout] 403 |     default const TYPE_VERSION: FixedVersion = FixedVersion::new(0, 0, 0);
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:405:5
[INFO] [stdout]     |
[INFO] [stdout] 405 |     default fn ty_name(&self) -> &'static str {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:409:5
[INFO] [stdout]     |
[INFO] [stdout] 409 |     default fn ty_id(&self) -> FixedId {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]    --> fixed_type_id/src/lib.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 |     default fn ty_version(&self) -> FixedVersion {
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]     = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2026-07-26; consider upgrading it if it is out of date
[INFO] [stdout]     = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]     = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rkyv v0.8.9
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking toml_edit v0.22.22
[INFO] [stderr]     Checking serde-hjson v1.1.0
[INFO] [stderr]     Checking ron v0.8.1
[INFO] [stderr]     Checking fixed-type-id v0.2.0
[INFO] [stderr]     Checking toml v0.8.19
[INFO] [stderr]     Checking fixed-revision v0.1.0 (/opt/rustwide/workdir/fixed_revision)
[INFO] [stdout] warning: unused imports: `TypeIdMismatchError` and `VersionTooNewError`
[INFO] [stdout]  --> fixed_revision/tests/serde_gen.rs:4:55
[INFO] [stdout]   |
[INFO] [stdout] 4 |     get_tag_serde, FixedTypeIdTag, FixedTypeIdTagged, TypeIdMismatchError, VersionTooNewError,
[INFO] [stdout]   |                                                       ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PathSegment`
[INFO] [stdout]  --> fixed_revision_macros/src/expand/reexport.rs:5:77
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::{punctuated::Pair, spanned::Spanned, token, Generics, Ident, Path, PathSegment};
[INFO] [stdout]   |                                                                             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::panic`
[INFO] [stdout]  --> fixed_revision_macros/src/expand/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use core::panic;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DeserializeVisitor` and `EnumStructsVisitor`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | use de::{DeserializeVisitor, EnumStructsVisitor};
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ser::SerializeVisitor`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use ser::SerializeVisitor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Archive`, `Deserialize`, `Serialize`, `from_bytes`, and `to_bytes`
[INFO] [stdout]   --> fixed_revision/tests/rkyv_gen.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | use rkyv::{from_bytes, rancor::Error, to_bytes, Archive, Deserialize, Serialize};
[INFO] [stdout]    |            ^^^^^^^^^^                 ^^^^^^^^  ^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `spanned::Spanned`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | use syn::{spanned::Spanned, Ident};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `end_kw` is assigned to, but never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         let mut end_kw = None;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_end_kw` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end_kw` is never read
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:211:21
[INFO] [stdout]     |
[INFO] [stdout] 211 |                     end_kw = Some(x.key);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `end_kw` is assigned to, but never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:447:13
[INFO] [stdout]     |
[INFO] [stdout] 447 |         let mut end_kw = None;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_end_kw` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `end_kw` is never read
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:461:21
[INFO] [stdout]     |
[INFO] [stdout] 461 |                     end_kw = Some(x.key);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:273:9
[INFO] [stdout]     |
[INFO] [stdout] 273 |         _ => {
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:273:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |         (true, _) => quote! {
[INFO] [stdout]     |         --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 266 |         (false, _) => quote! {
[INFO] [stdout]     |         ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 273 |         _ => {
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 478 |         _ => unimplemented!(),
[INFO] [stdout]     |         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> fixed_revision_macros/src/expand/mod.rs:478:9
[INFO] [stdout]     |
[INFO] [stdout] 436 |         (true, _) => quote! {
[INFO] [stdout]     |         --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 461 |         (false, _) => quote! {
[INFO] [stdout]     |         ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 478 |         _ => unimplemented!(),
[INFO] [stdout]     |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `skip_fixedid_gen`
[INFO] [stdout]   --> fixed_revision_macros/src/expand/mod.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let skip_fixedid_gen = match (&ast.attrs.options.rkyv_support, &attrs.0.rkyv_support) {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skip_fixedid_gen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fields_name` is never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/mod.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 110 | impl Variant {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 111 |     /// Returns the name of the fields struct of this variant
[INFO] [stdout] 112 |     pub fn fields_name(&self, enum_name: &str) -> Ident {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_binding` is never used
[INFO] [stdout]    --> fixed_revision_macros/src/ast/mod.rs:268:12
[INFO] [stdout]     |
[INFO] [stdout] 267 | impl FieldName {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] 268 |     pub fn to_binding(&self) -> Ident {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `skip_fixedid_gen` and `default_version` are never read
[INFO] [stdout]    --> fixed_revision_macros/src/ast/attributes.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 243 | pub struct ItemOptions {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 244 |     pub revision: Option<usize>,
[INFO] [stdout] 245 |     pub skip_fixedid_gen: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 246 |     pub fixed_id_prefix: Option<Path>,
[INFO] [stdout] 247 |     pub default_version: Option<usize>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ItemOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CalcDiscriminant` is never constructed
[INFO] [stdout]  --> fixed_revision_macros/src/expand/common.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CalcDiscriminant<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> fixed_revision_macros/src/expand/common.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a> CalcDiscriminant<'a> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(revision: usize, discriminants: &'a mut HashMap<Ident, u32>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GatherOverrides` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/common.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct GatherOverrides<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EnumStructsVisitor` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/de.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct EnumStructsVisitor<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> fixed_revision_macros/src/expand/de.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<'a> EnumStructsVisitor<'a> {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] 18 |     pub fn new(revision: usize, stream: &'a mut TokenStream) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeVisitor` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/de.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub struct DeserializeVisitor<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeVariant` is never constructed
[INFO] [stdout]    --> fixed_revision_macros/src/expand/de.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub struct DeserializeVariant<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DeserializeFields` is never constructed
[INFO] [stdout]    --> fixed_revision_macros/src/expand/de.rs:335:12
[INFO] [stdout]     |
[INFO] [stdout] 335 | pub struct DeserializeFields<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeVisitor` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/ser.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct SerializeVisitor<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> fixed_revision_macros/src/expand/ser.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a> SerializeVisitor<'a> {
[INFO] [stdout]    | ----------------------------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(revision: usize, stream: &'a mut TokenStream) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeFields` is never constructed
[INFO] [stdout]   --> fixed_revision_macros/src/expand/ser.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct SerializeFields<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SerializeVariant` is never constructed
[INFO] [stdout]    --> fixed_revision_macros/src/expand/ser.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct SerializeVariant<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.46s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bytecheck v0.8.0, rkyv v0.8.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "40c7a5dd0d42e5a86f992581ea4795dfb767e62bd6a66a000537bd5b061bdd73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40c7a5dd0d42e5a86f992581ea4795dfb767e62bd6a66a000537bd5b061bdd73", kill_on_drop: false }`
[INFO] [stdout] 40c7a5dd0d42e5a86f992581ea4795dfb767e62bd6a66a000537bd5b061bdd73
