[INFO] cloning repository https://github.com/Tamschi/subset-struct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tamschi/subset-struct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTamschi%2Fsubset-struct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTamschi%2Fsubset-struct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7282ff6a2dcfc872b7f5509869ac3f84638d038
[INFO] testing Tamschi/subset-struct against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTamschi%2Fsubset-struct" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tamschi/subset-struct on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/Tamschi/subset-struct
[INFO] finished tweaking git repo https://github.com/Tamschi/subset-struct
[INFO] tweaked toml for git repo https://github.com/Tamschi/subset-struct written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Tamschi/subset-struct 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded call2-for-syn v2.0.3
[INFO] [stderr]   Downloaded version-sync v0.9.2
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.26
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45981624e622222abd636da63890e51fe455dc863cc85c42506a0a425bd3576f
[INFO] running `Command { std: "docker" "start" "-a" "45981624e622222abd636da63890e51fe455dc863cc85c42506a0a425bd3576f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45981624e622222abd636da63890e51fe455dc863cc85c42506a0a425bd3576f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45981624e622222abd636da63890e51fe455dc863cc85c42506a0a425bd3576f", kill_on_drop: false }`
[INFO] [stdout] 45981624e622222abd636da63890e51fe455dc863cc85c42506a0a425bd3576f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c75105f073e0ab8336b4a06eb179cbad2cfd4a0f4a73d84c81a3f1dee4193007
[INFO] running `Command { std: "docker" "start" "-a" "c75105f073e0ab8336b4a06eb179cbad2cfd4a0f4a73d84c81a3f1dee4193007", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling debugless-unwrap v0.0.4
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling call2-for-syn v2.0.3
[INFO] [stderr]    Compiling subset-struct v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Delimiter`, `Group`
[INFO] [stdout]   --> src/lib.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 | use proc_macro2::{Delimiter, Group, Span, TokenStream, TokenTree};
[INFO] [stdout]    |                   ^^^^^^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `atomic::AtomicBool`, `fmt::Display`
[INFO] [stdout]   --> src/lib.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fmt::Display,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 16 |     iter,
[INFO] [stdout] 17 |     sync::{atomic::AtomicBool, Once},
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `NestedMeta`, `ParseBuffer`, `Peek`
[INFO] [stdout]   --> src/lib.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     parse::{Parse, ParseBuffer, ParseStream, Parser, Peek},
[INFO] [stdout]    |                    ^^^^^^^^^^^                       ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Error, Ident, NestedMeta, Result, Token,
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Parse`
[INFO] [stdout]   --> src/lib.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |     parse::{Parse, ParseBuffer, ParseStream, Parser, Peek},
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CustomToken`
[INFO] [stdout]   --> src/lib.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     token::{Brace, CustomToken, Paren},
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr_args`
[INFO] [stdout]   --> src/lib.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let attr_args = call2_strict(attr_args, |attr_args: ParseStream| {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attr_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/lib.rs:190:10
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     for token in conversions.unwrap() {
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:189:10
[INFO] [stdout]     |
[INFO] [stdout] 189 |                     let mut punctuated = Punctuated::new();
[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: fields `default_` and `attrs` are never read
[INFO] [stdout]   --> src/lib.rs:60:3
[INFO] [stdout]    |
[INFO] [stdout] 59 |     Default {
[INFO] [stdout]    |     ------- fields in this variant
[INFO] [stdout] 60 |         default_: Token![default],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 61 |         attr_paren: Paren,
[INFO] [stdout] 62 |         attrs: Punctuated<TokenStream, Token![,]>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `conv_brace`, `conversions`, `r_arrow`, `name`, `attr_paren`, and `attrs` are never read
[INFO] [stdout]   --> src/lib.rs:65:3
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Subset {
[INFO] [stdout]    |     ------ fields in this variant
[INFO] [stdout] 65 |         conv_brace: Brace,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 66 |         conversions: Punctuated<
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |         r_arrow: Token![->],
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 77 |         name: Ident,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 78 |         attr_paren: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 79 |         attrs: Punctuated<TokenStream, Token![,]>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "c75105f073e0ab8336b4a06eb179cbad2cfd4a0f4a73d84c81a3f1dee4193007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c75105f073e0ab8336b4a06eb179cbad2cfd4a0f4a73d84c81a3f1dee4193007", kill_on_drop: false }`
[INFO] [stdout] c75105f073e0ab8336b4a06eb179cbad2cfd4a0f4a73d84c81a3f1dee4193007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e890c476d74708f8567d3e63eddfeb0002797cb7d5ad381a5d98d69be16cc38
[INFO] running `Command { std: "docker" "start" "-a" "8e890c476d74708f8567d3e63eddfeb0002797cb7d5ad381a5d98d69be16cc38", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.76
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling wasm-bindgen v0.2.76
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling cargo-husky v1.5.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling semver-parser v0.9.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling debugless-unwrap v0.0.4
[INFO] [stderr]    Compiling git_info v0.1.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.26
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling call2-for-syn v2.0.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.76
[INFO] [stderr]    Compiling subset-struct v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Delimiter`, `Group`
[INFO] [stdout]   --> src/lib.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 | use proc_macro2::{Delimiter, Group, Span, TokenStream, TokenTree};
[INFO] [stdout]    |                   ^^^^^^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `atomic::AtomicBool`, `fmt::Display`
[INFO] [stdout]   --> src/lib.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fmt::Display,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 16 |     iter,
[INFO] [stdout] 17 |     sync::{atomic::AtomicBool, Once},
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `NestedMeta`, `ParseBuffer`, `Peek`
[INFO] [stdout]   --> src/lib.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     parse::{Parse, ParseBuffer, ParseStream, Parser, Peek},
[INFO] [stdout]    |                    ^^^^^^^^^^^                       ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Error, Ident, NestedMeta, Result, Token,
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Parse`
[INFO] [stdout]   --> src/lib.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |     parse::{Parse, ParseBuffer, ParseStream, Parser, Peek},
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CustomToken`
[INFO] [stdout]   --> src/lib.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     token::{Brace, CustomToken, Paren},
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr_args`
[INFO] [stdout]   --> src/lib.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let attr_args = call2_strict(attr_args, |attr_args: ParseStream| {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attr_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/lib.rs:190:10
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     for token in conversions.unwrap() {
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:189:10
[INFO] [stdout]     |
[INFO] [stdout] 189 |                     let mut punctuated = Punctuated::new();
[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: fields `default_` and `attrs` are never read
[INFO] [stdout]   --> src/lib.rs:60:3
[INFO] [stdout]    |
[INFO] [stdout] 59 |     Default {
[INFO] [stdout]    |     ------- fields in this variant
[INFO] [stdout] 60 |         default_: Token![default],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 61 |         attr_paren: Paren,
[INFO] [stdout] 62 |         attrs: Punctuated<TokenStream, Token![,]>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `conv_brace`, `conversions`, `r_arrow`, `name`, `attr_paren`, and `attrs` are never read
[INFO] [stdout]   --> src/lib.rs:65:3
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Subset {
[INFO] [stdout]    |     ------ fields in this variant
[INFO] [stdout] 65 |         conv_brace: Brace,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 66 |         conversions: Punctuated<
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |         r_arrow: Token![->],
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 77 |         name: Ident,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 78 |         attr_paren: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 79 |         attrs: Punctuated<TokenStream, Token![,]>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.76
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.76
[INFO] [stderr]    Compiling js-sys v0.3.53
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.26
[INFO] [stderr]    Compiling wasm-bindgen-test v0.3.26
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling version-sync v0.9.2
[INFO] [stdout] error: custom attribute panicked
[INFO] [stdout]   --> tests/subsets.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | / #[subset(
[INFO] [stdout] 7  | |     /// This documentation will appear on `Base`, as will the attribute.
[INFO] [stdout] 8  | |     #[derive(Deserialize)]
[INFO] [stdout] 9  | |     default,
[INFO] [stdout] ...  |
[INFO] [stdout] 41 | |     ref Extant,
[INFO] [stdout] 42 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: not yet implemented: conversions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Macro panic: panicked at 'not yet implemented: conversions', src/lib.rs:191:25
[INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stdout]  --> tests/subsets.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `subset-struct` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused imports: `Delimiter`, `Group`
[INFO] [stdout]   --> src/lib.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 | use proc_macro2::{Delimiter, Group, Span, TokenStream, TokenTree};
[INFO] [stdout]    |                   ^^^^^^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `atomic::AtomicBool`, `fmt::Display`
[INFO] [stdout]   --> src/lib.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fmt::Display,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 16 |     iter,
[INFO] [stdout] 17 |     sync::{atomic::AtomicBool, Once},
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `NestedMeta`, `ParseBuffer`, `Peek`
[INFO] [stdout]   --> src/lib.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     parse::{Parse, ParseBuffer, ParseStream, Parser, Peek},
[INFO] [stdout]    |                    ^^^^^^^^^^^                       ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Error, Ident, NestedMeta, Result, Token,
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Parse`
[INFO] [stdout]   --> src/lib.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |     parse::{Parse, ParseBuffer, ParseStream, Parser, Peek},
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CustomToken`
[INFO] [stdout]   --> src/lib.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     token::{Brace, CustomToken, Paren},
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr_args`
[INFO] [stdout]   --> src/lib.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let attr_args = call2_strict(attr_args, |attr_args: ParseStream| {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attr_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/lib.rs:190:10
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     for token in conversions.unwrap() {
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:189:10
[INFO] [stdout]     |
[INFO] [stdout] 189 |                     let mut punctuated = Punctuated::new();
[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: fields `default_` and `attrs` are never read
[INFO] [stdout]   --> src/lib.rs:60:3
[INFO] [stdout]    |
[INFO] [stdout] 59 |     Default {
[INFO] [stdout]    |     ------- fields in this variant
[INFO] [stdout] 60 |         default_: Token![default],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 61 |         attr_paren: Paren,
[INFO] [stdout] 62 |         attrs: Punctuated<TokenStream, Token![,]>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `conv_brace`, `conversions`, `r_arrow`, `name`, `attr_paren`, and `attrs` are never read
[INFO] [stdout]   --> src/lib.rs:65:3
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Subset {
[INFO] [stdout]    |     ------ fields in this variant
[INFO] [stdout] 65 |         conv_brace: Brace,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 66 |         conversions: Punctuated<
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |         r_arrow: Token![->],
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 77 |         name: Ident,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 78 |         attr_paren: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 79 |         attrs: Punctuated<TokenStream, Token![,]>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustchtrev3/symbols.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.meta_badges.cce340d0-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a.d6pwsfuvtc1eviw.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libgit_info-ef9bad20b7a9daa5.rlib" "/opt/rustwide/target/debug/deps/libversion_sync-b999f433574862a9.rlib" "/opt/rustwide/target/debug/deps/libtoml-688ff69e4c448f3e.rlib" "/opt/rustwide/target/debug/deps/libserde-6f529db2f9964d86.rlib" "/opt/rustwide/target/debug/deps/libpulldown_cmark-6e4e2693d6d6f25f.rlib" "/opt/rustwide/target/debug/deps/libmemchr-ec57cc7d07d08f67.rlib" "/opt/rustwide/target/debug/deps/libunicase-64c0f3956afb2625.rlib" "/opt/rustwide/target/debug/deps/libbitflags-ed17cd8d1f1832b6.rlib" "/opt/rustwide/target/debug/deps/liburl-f1a00d26ca938ae9.rlib" "/opt/rustwide/target/debug/deps/libidna-e9c42c26cbd01728.rlib" "/opt/rustwide/target/debug/deps/libunicode_normalization-22a141ffc7da92da.rlib" "/opt/rustwide/target/debug/deps/libtinyvec-2672426a2087d0fc.rlib" "/opt/rustwide/target/debug/deps/libtinyvec_macros-5ffb2ea8a2d866f2.rlib" "/opt/rustwide/target/debug/deps/libunicode_bidi-028d2fa6a0bfdc45.rlib" "/opt/rustwide/target/debug/deps/libform_urlencoded-71ee20de0128d073.rlib" "/opt/rustwide/target/debug/deps/libpercent_encoding-5186c2668f567217.rlib" "/opt/rustwide/target/debug/deps/libmatches-777595fed8fec1fd.rlib" "/opt/rustwide/target/debug/deps/libsyn-4c7d038460852da6.rlib" "/opt/rustwide/target/debug/deps/libquote-b78af26c386344ac.rlib" "/opt/rustwide/target/debug/deps/libproc_macro2-1bf4d41f57086f2e.rlib" "/opt/rustwide/target/debug/deps/libunicode_xid-b24fd96b72695abb.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libproc_macro-3627dfecd49b0535.rlib" "/opt/rustwide/target/debug/deps/libsemver_parser-189245b87e97e5d6.rlib" "/opt/rustwide/target/debug/deps/libregex-b90ceee92309e2c3.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-c10b1048d6d833f1.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-7791a6353d4a7929.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-7b17724e9ce90a72.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-596f8ce9d30a755e.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-da04f86254de594f.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-89bc084783fdc439.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-8bee4b287d4367c1.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-d61707aed80694c0.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-d85366256f22345b.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-96069b86b8a8cae9.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-d19d53abf68dfa6c.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-787cbccd19d64ac6.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-b3837a36b830e0d0.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-e3deb0e7e3f04966.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-dabbb79c9815def4.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-305b01f34c9409f2.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-f833521df6074e73.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-9ac333113350d171.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-1c126114322d0eee.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bad9164fdeeecf92.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-f9374b1e480fa681.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-207f06e41d9603af.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-7e2768e66e984e85.rlib" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-957b4aff41f8cd46.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.69.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/meta_badges-7086f327fbb3074a" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: collect2: fatal error: ld terminated with signal 9 [Killed]
[INFO] [stdout]           compilation terminated.
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `subset-struct` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8e890c476d74708f8567d3e63eddfeb0002797cb7d5ad381a5d98d69be16cc38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e890c476d74708f8567d3e63eddfeb0002797cb7d5ad381a5d98d69be16cc38", kill_on_drop: false }`
[INFO] [stdout] 8e890c476d74708f8567d3e63eddfeb0002797cb7d5ad381a5d98d69be16cc38
