[INFO] cloning repository https://github.com/vmasdani/rs2dart-proto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vmasdani/rs2dart-proto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvmasdani%2Frs2dart-proto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvmasdani%2Frs2dart-proto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aabf32d7dba2140cb9f3bcdf185faf379d4cae2c
[INFO] checking vmasdani/rs2dart-proto against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvmasdani%2Frs2dart-proto" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vmasdani/rs2dart-proto on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vmasdani/rs2dart-proto
[INFO] finished tweaking git repo https://github.com/vmasdani/rs2dart-proto
[INFO] tweaked toml for git repo https://github.com/vmasdani/rs2dart-proto written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/vmasdani/rs2dart-proto already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b0691ce0be8b4e593b6047929fbbae19466215c808c136bb985f1c63690a512
[INFO] running `Command { std: "docker" "start" "-a" "4b0691ce0be8b4e593b6047929fbbae19466215c808c136bb985f1c63690a512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b0691ce0be8b4e593b6047929fbbae19466215c808c136bb985f1c63690a512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b0691ce0be8b4e593b6047929fbbae19466215c808c136bb985f1c63690a512", kill_on_drop: false }`
[INFO] [stdout] 4b0691ce0be8b4e593b6047929fbbae19466215c808c136bb985f1c63690a512
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02048447df3b9a4dda6be3e9c080c8a08d1a96e38dc3e92f97e604ade48631af
[INFO] running `Command { std: "docker" "start" "-a" "02048447df3b9a4dda6be3e9c080c8a08d1a96e38dc3e92f97e604ade48631af", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling rustdart v0.1.0 (/tmp/fixit/rustdart)
[INFO] [stdout] warning: unused import: `any::type_name`
[INFO] [stdout]  --> rustdart/src/lib.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{any::type_name, fs};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ident`
[INFO] [stdout]  --> rustdart/src/lib.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use proc_macro::{Ident, TokenStream};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 50 |             syn::Type::Array(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:53:31
[INFO] [stdout]    |
[INFO] [stdout] 53 |             syn::Type::BareFn(a) => {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:57:30
[INFO] [stdout]    |
[INFO] [stdout] 57 |             syn::Type::Group(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:61:34
[INFO] [stdout]    |
[INFO] [stdout] 61 |             syn::Type::ImplTrait(a) => {
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 65 |             syn::Type::Infer(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:69:30
[INFO] [stdout]    |
[INFO] [stdout] 69 |             syn::Type::Macro(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:73:30
[INFO] [stdout]    |
[INFO] [stdout] 73 |             syn::Type::Never(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:77:30
[INFO] [stdout]    |
[INFO] [stdout] 77 |             syn::Type::Paren(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:109:28
[INFO] [stdout]     |
[INFO] [stdout] 109 |             syn::Type::Ptr(a) => {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:113:34
[INFO] [stdout]     |
[INFO] [stdout] 113 |             syn::Type::Reference(a) => {
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:117:30
[INFO] [stdout]     |
[INFO] [stdout] 117 |             syn::Type::Slice(a) => {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:121:36
[INFO] [stdout]     |
[INFO] [stdout] 121 |             syn::Type::TraitObject(a) => {
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:125:30
[INFO] [stdout]     |
[INFO] [stdout] 125 |             syn::Type::Tuple(a) => {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> rustdart/src/lib.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut field_name_str = 
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> rustdart/src/lib.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     fs::write(
[INFO] [stdout] 157 | |         "model.dart",
[INFO] [stdout] 158 | |         format!(r#"class {} {{
[INFO] [stdout] 159 | | {}
[INFO] [stdout] ...   |
[INFO] [stdout] 163 | |         ),
[INFO] [stdout] 164 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rs2dart-proto v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stdout] Attr: TokenStream []
[INFO] [stdout] Itme: TokenStream [Ident { ident: "struct", span: #0 bytes(141..147) }, Ident { ident: "MyStructTest", span: #0 bytes(148..160) }, Group { delimiter: Brace, stream: TokenStream [Ident { ident: "id", span: #0 bytes(171..173) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(173..174) }, Ident { ident: "i32", span: #0 bytes(175..178) }, Punct { ch: ',', spacing: Alone, span: #0 bytes(178..179) }, Ident { ident: "my_string", span: #0 bytes(188..197) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(197..198) }, Ident { ident: "String", span: #0 bytes(199..205) }, Punct { ch: ',', spacing: Alone, span: #0 bytes(205..206) }, Ident { ident: "my_double", span: #0 bytes(215..224) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(224..225) }, Ident { ident: "f32", span: #0 bytes(226..229) }], span: #0 bytes(161..235) }]
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] iDENTITY: "MyStructTest"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] path
[INFO] [stdout] Type "i32"
[INFO] [stdout] path
[INFO] [stdout] Type "String"
[INFO] [stdout] path
[INFO] [stdout] Type "f32"
[INFO] [stdout] Fields final:
[INFO] [stdout] [DartTypeAttr { field_name: "id", type_name: "int" }, DartTypeAttr { field_name: "my_string", type_name: "String" }, DartTypeAttr { field_name: "my_double", type_name: "double" }]
[INFO] [stdout] Attr: TokenStream []
[INFO] [stdout] Itme: TokenStream [Ident { ident: "struct", span: #0 bytes(141..147) }, Ident { ident: "MyStructTest", span: #0 bytes(148..160) }, Group { delimiter: Brace, stream: TokenStream [Ident { ident: "id", span: #0 bytes(171..173) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(173..174) }, Ident { ident: "i32", span: #0 bytes(175..178) }, Punct { ch: ',', spacing: Alone, span: #0 bytes(178..179) }, Ident { ident: "my_string", span: #0 bytes(188..197) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(197..198) }, Ident { ident: "String", span: #0 bytes(199..205) }, Punct { ch: ',', spacing: Alone, span: #0 bytes(205..206) }, Ident { ident: "my_double", span: #0 bytes(215..224) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(224..225) }, Ident { ident: "f32", span: #0 bytes(226..229) }], span: #0 bytes(161..235) }]
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] iDENTITY: "MyStructTest"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] path
[INFO] [stdout] Type "i32"
[INFO] [stdout] path
[INFO] [stdout] Type "String"
[INFO] [stdout] path
[INFO] [stdout] Type "f32"
[INFO] [stdout] Fields final:
[INFO] [stdout] [DartTypeAttr { field_name: "id", type_name: "int" }, DartTypeAttr { field_name: "my_string", type_name: "String" }, DartTypeAttr { field_name: "my_double", type_name: "double" }]
[INFO] [stdout] warning: struct is never constructed: `MyStructTest`
[INFO] [stdout]   --> src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     struct MyStructTest {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.81s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stdout] warning: unused import: `any::type_name`
[INFO] [stdout]  --> rustdart/src/lib.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{any::type_name, fs};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ident`
[INFO] [stdout]  --> rustdart/src/lib.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use proc_macro::{Ident, TokenStream};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 50 |             syn::Type::Array(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:53:31
[INFO] [stdout]    |
[INFO] [stdout] 53 |             syn::Type::BareFn(a) => {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:57:30
[INFO] [stdout]    |
[INFO] [stdout] 57 |             syn::Type::Group(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:61:34
[INFO] [stdout]    |
[INFO] [stdout] 61 |             syn::Type::ImplTrait(a) => {
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 65 |             syn::Type::Infer(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:69:30
[INFO] [stdout]    |
[INFO] [stdout] 69 |             syn::Type::Macro(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:73:30
[INFO] [stdout]    |
[INFO] [stdout] 73 |             syn::Type::Never(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> rustdart/src/lib.rs:77:30
[INFO] [stdout]    |
[INFO] [stdout] 77 |             syn::Type::Paren(a) => {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:109:28
[INFO] [stdout]     |
[INFO] [stdout] 109 |             syn::Type::Ptr(a) => {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:113:34
[INFO] [stdout]     |
[INFO] [stdout] 113 |             syn::Type::Reference(a) => {
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:117:30
[INFO] [stdout]     |
[INFO] [stdout] 117 |             syn::Type::Slice(a) => {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:121:36
[INFO] [stdout]     |
[INFO] [stdout] 121 |             syn::Type::TraitObject(a) => {
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> rustdart/src/lib.rs:125:30
[INFO] [stdout]     |
[INFO] [stdout] 125 |             syn::Type::Tuple(a) => {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> rustdart/src/lib.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut field_name_str = 
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> rustdart/src/lib.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     fs::write(
[INFO] [stdout] 157 | |         "model.dart",
[INFO] [stdout] 158 | |         format!(r#"class {} {{
[INFO] [stdout] 159 | | {}
[INFO] [stdout] ...   |
[INFO] [stdout] 163 | |         ),
[INFO] [stdout] 164 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rs2dart-proto v0.1.0 (/tmp/fixit)
[INFO] [stdout] Attr: TokenStream []
[INFO] [stdout] Itme: TokenStream [Ident { ident: "struct", span: #0 bytes(141..147) }, Ident { ident: "MyStructTest", span: #0 bytes(148..160) }, Group { delimiter: Brace, stream: TokenStream [Ident { ident: "id", span: #0 bytes(171..173) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(173..174) }, Ident { ident: "i32", span: #0 bytes(175..178) }, Punct { ch: ',', spacing: Alone, span: #0 bytes(178..179) }, Ident { ident: "my_string", span: #0 bytes(188..197) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(197..198) }, Ident { ident: "String", span: #0 bytes(199..205) }, Punct { ch: ',', spacing: Alone, span: #0 bytes(205..206) }, Ident { ident: "my_double", span: #0 bytes(215..224) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(224..225) }, Ident { ident: "f32", span: #0 bytes(226..229) }], span: #0 bytes(161..235) }]
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] iDENTITY: "MyStructTest"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] path
[INFO] [stdout] Type "i32"
[INFO] [stdout] path
[INFO] [stdout] Type "String"
[INFO] [stdout] path
[INFO] [stdout] Type "f32"
[INFO] [stdout] Fields final:
[INFO] [stdout] [DartTypeAttr { field_name: "id", type_name: "int" }, DartTypeAttr { field_name: "my_string", type_name: "String" }, DartTypeAttr { field_name: "my_double", type_name: "double" }]
[INFO] [stdout] warning: struct is never constructed: `MyStructTest`
[INFO] [stdout]   --> src/main.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     struct MyStructTest {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Attr: TokenStream []
[INFO] [stdout] Itme: TokenStream [Ident { ident: "struct", span: #0 bytes(141..147) }, Ident { ident: "MyStructTest", span: #0 bytes(148..160) }, Group { delimiter: Brace, stream: TokenStream [Ident { ident: "id", span: #0 bytes(171..173) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(173..174) }, Ident { ident: "i32", span: #0 bytes(175..178) }, Punct { ch: ',', spacing: Alone, span: #0 bytes(178..179) }, Ident { ident: "my_string", span: #0 bytes(188..197) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(197..198) }, Ident { ident: "String", span: #0 bytes(199..205) }, Punct { ch: ',', spacing: Alone, span: #0 bytes(205..206) }, Ident { ident: "my_double", span: #0 bytes(215..224) }, Punct { ch: ':', spacing: Alone, span: #0 bytes(224..225) }, Ident { ident: "f32", span: #0 bytes(226..229) }], span: #0 bytes(161..235) }]
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] iDENTITY: "MyStructTest"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] path
[INFO] [stdout] Type "i32"
[INFO] [stdout] path
[INFO] [stdout] Type "String"
[INFO] [stdout] path
[INFO] [stdout] Type "f32"
[INFO] [stdout] Fields final:
[INFO] [stdout] [DartTypeAttr { field_name: "id", type_name: "int" }, DartTypeAttr { field_name: "my_string", type_name: "String" }, DartTypeAttr { field_name: "my_double", type_name: "double" }]
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "02048447df3b9a4dda6be3e9c080c8a08d1a96e38dc3e92f97e604ade48631af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02048447df3b9a4dda6be3e9c080c8a08d1a96e38dc3e92f97e604ade48631af", kill_on_drop: false }`
[INFO] [stdout] 02048447df3b9a4dda6be3e9c080c8a08d1a96e38dc3e92f97e604ade48631af