[INFO] fetching crate errgo 0.1.4...
[INFO] testing errgo-0.1.4 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate errgo 0.1.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate errgo 0.1.4
[INFO] finished tweaking crates.io crate errgo 0.1.4
[INFO] tweaked toml for crates.io crate errgo 0.1.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate errgo 0.1.4 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 37 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b736d91f70828925de42f3c44ef003e87cf75daaef7973d95dc98eabbb66c9a6
[INFO] running `Command { std: "docker" "start" "-a" "b736d91f70828925de42f3c44ef003e87cf75daaef7973d95dc98eabbb66c9a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b736d91f70828925de42f3c44ef003e87cf75daaef7973d95dc98eabbb66c9a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b736d91f70828925de42f3c44ef003e87cf75daaef7973d95dc98eabbb66c9a6", kill_on_drop: false }`
[INFO] [stdout] b736d91f70828925de42f3c44ef003e87cf75daaef7973d95dc98eabbb66c9a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a768ac5425e41fd3cdc4e1b87e05fef093913b2f5d71f143da0dbe3c155f0319
[INFO] running `Command { std: "docker" "start" "-a" "a768ac5425e41fd3cdc4e1b87e05fef093913b2f5d71f143da0dbe3c155f0319", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling errgo v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "a768ac5425e41fd3cdc4e1b87e05fef093913b2f5d71f143da0dbe3c155f0319", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a768ac5425e41fd3cdc4e1b87e05fef093913b2f5d71f143da0dbe3c155f0319", kill_on_drop: false }`
[INFO] [stdout] a768ac5425e41fd3cdc4e1b87e05fef093913b2f5d71f143da0dbe3c155f0319
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf726686fbe7833a6b98a2f6fd33261b2829b0edac204e95ee77edd24cec2cb4
[INFO] running `Command { std: "docker" "start" "-a" "bf726686fbe7833a6b98a2f6fd33261b2829b0edac204e95ee77edd24cec2cb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling target-triple v1.0.0
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling toml_writer v1.0.6+spec-1.1.0
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling dissimilar v1.0.10
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling serde_spanned v1.0.4
[INFO] [stderr]    Compiling toml_datetime v0.7.5+spec-1.1.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling pretty_assertions v1.4.1
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling toml_parser v1.0.6+spec-1.1.0
[INFO] [stderr]    Compiling toml v0.9.11+spec-1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling errgo v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling trybuild v1.0.114
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 14.01s
[INFO] running `Command { std: "docker" "inspect" "bf726686fbe7833a6b98a2f6fd33261b2829b0edac204e95ee77edd24cec2cb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf726686fbe7833a6b98a2f6fd33261b2829b0edac204e95ee77edd24cec2cb4", kill_on_drop: false }`
[INFO] [stdout] bf726686fbe7833a6b98a2f6fd33261b2829b0edac204e95ee77edd24cec2cb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 811510af56bc84d4fcc0e78b8715c5945f27fb081f75884433dfe0bad16bba57
[INFO] running `Command { std: "docker" "start" "-a" "811510af56bc84d4fcc0e78b8715c5945f27fb081f75884433dfe0bad16bba57", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/errgo-6d1893fffd230654)
[INFO] [stdout] running 14 tests
[INFO] [stdout] test config::tests::parse_visibility ... ok
[INFO] [stdout] test config::tests::parse_all ... ok
[INFO] [stdout] test config::tests::parse_derives ... ok
[INFO] [stdout] test config::tests::parse_attributes ... ok
[INFO] [stdout] test data::tests::parse_unit_variant ... ok
[INFO] [stdout] test data::tests::parse_unit_variant_with_discriminant ... ok
[INFO] [stdout] test data::tests::parse_unnamed_variant ... ok
[INFO] [stdout] test data::tests::use_named_variant ... ok
[INFO] [stdout] test data::tests::use_unnamed_variant ... ok
[INFO] [stdout] test tests::get_result_name ... ok
[INFO] [stdout] test data::tests::use_unit_variant ... ok
[INFO] [stdout] test data::tests::parse_named_variant ... ok
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stdout] test tests::readme ... FAILED
[INFO] [stderr]    Compiling pretty_assertions v1.4.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling errgo v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling errgo-tests v0.0.0 (/opt/rustwide/target/tests/trybuild/errgo)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.60s
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] test trybuild/pass/derive_passthrough.rs [should pass] ... ok
[INFO] [stderr] test trybuild/pass/empty.rs [should pass] ... ok
[INFO] [stderr] test trybuild/pass/err_attr_passthrough.rs [should pass] ... ok
[INFO] [stderr] test trybuild/pass/mix.rs [should pass] ... ok
[INFO] [stderr] test trybuild/pass/nested.rs [should pass] ... ok
[INFO] [stderr] test trybuild/pass/struct_attr_passthrough.rs [should pass] ... ok
[INFO] [stderr] test trybuild/pass/structy.rs [should pass] ... ok
[INFO] [stderr] test trybuild/pass/tuple.rs [should pass] ... ok
[INFO] [stderr] test trybuild/pass/unit.rs [should pass] ... ok
[INFO] [stderr] test trybuild/pass/visibility.rs [should pass] ... ok
[INFO] [stderr] 
[INFO] [stderr] WARNINGS:
[INFO] [stderr] ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
[INFO] [stderr] warning: unused import: `inner::FooError`
[INFO] [stderr]  --> trybuild/pass/visibility.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub use inner::FooError;
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
[INFO] [stderr] 
[INFO] [stderr] STDERR:
[INFO] [stderr] ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
[INFO] [stderr] warning: unused import: `inner::FooError`
[INFO] [stderr]  --> /opt/rustwide/workdir/trybuild/pass/visibility.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub use inner::FooError;
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
[INFO] [stderr] 
[INFO] [stderr] test trybuild/fail/invalid_ident.rs [should fail to compile] ... ok
[INFO] [stderr] test trybuild/fail/invalid_signature.rs [should fail to compile] ... ok
[INFO] [stderr] test trybuild/fail/unsupported_macro_args.rs [should fail to compile] ... ok
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stdout] test tests::trybuild ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::readme stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::readme' (37) panicked at src/lib.rs:331:9:
[INFO] [stdout] assertion failed: `(left == right)`
[INFO] [stdout] 
[INFO] [stdout] [1mDiff[0m [31m< left[0m / [32mright >[0m :
[INFO] [stdout] [32m><div align="center">[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>[![crates-io](https://img.shields.io/crates/v/errgo.svg)](https://crates.io/crates/errgo)[0m
[INFO] [stdout] [32m>[![docs-rs](https://docs.rs/errgo/badge.svg)](https://docs.rs/errgo)[0m
[INFO] [stdout] [32m>[![github](https://img.shields.io/static/v1?label=&message=github&color=grey&logo=github)](https://github.com/aatifsyed/errgo)[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m></div>[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m># `errgo`[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>Generate `enum` error variants inline.[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>A slightly type-safer take on [anyhow], where each ad-hoc error is handleable by the caller.[0m
[INFO] [stdout] [32m>Designed to play nice with other crates like [strum] or [thiserror].[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>This crate was written to aid wrapping C APIs - transforming e.g error codes to handleable messages.[0m
[INFO] [stdout] [32m>It shouldn't really be used for library api entry points - a well-considered top-level error type is likely to be both more readable and forward compatible.[0m
[INFO] [stdout] [32m>Consider reading [Study of `std::io::Error`](https://matklad.github.io/2020/10/15/study-of-std-io-error.html) or simply making all generated structs `pub(crate)`.[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>```rust[0m
[INFO] [stdout] [32m>use errgo::errgo;[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>#[errgo][0m
[INFO] [stdout] [32m>fn shave_yaks([0m
[INFO] [stdout] [32m>    num_yaks: usize,[0m
[INFO] [stdout] [32m>    empty_buckets: usize,[0m
[INFO] [stdout] [32m>    num_razors: usize,[0m
[INFO] [stdout] [32m>) -> Result<(), ShaveYaksError> {[0m
[INFO] [stdout] [32m>    if num_razors == 0 {[0m
[INFO] [stdout] [32m>        return Err(err!(NotEnoughRazors));[0m
[INFO] [stdout] [32m>    }[0m
[INFO] [stdout] [32m>    if num_yaks > empty_buckets {[0m
[INFO] [stdout] [32m>        return Err(err!(NotEnoughBuckets {[0m
[INFO] [stdout] [32m>            got: usize = empty_buckets,[0m
[INFO] [stdout] [32m>            required: usize = num_yaks,[0m
[INFO] [stdout] [32m>        }));[0m
[INFO] [stdout] [32m>    }[0m
[INFO] [stdout] [32m>    Ok(())[0m
[INFO] [stdout] [32m>}[0m
[INFO] [stdout] [32m>```[0m
[INFO] [stdout] [32m>Under the hood, a struct like this is generated:[0m
[INFO] [stdout] [32m>```rust[0m
[INFO] [stdout] [32m>enum ShaveYaksError { // name and visibility are taken from function return type and visibility[0m
[INFO] [stdout] [32m>    NotEnoughRazors,[0m
[INFO] [stdout] [32m>    NotEnoughBuckets {[0m
[INFO] [stdout] [32m>        got: usize,[0m
[INFO] [stdout] [32m>        required: usize,[0m
[INFO] [stdout] [32m>    }[0m
[INFO] [stdout] [32m>}[0m
[INFO] [stdout] [32m>```[0m
[INFO] [stdout] [32m>Note that the struct definition is placed just above the function body, meaning that you can't use [`errgo`] on functions in `impl` blocks - you'll have to move the function body to an outer scope, and call it in the impl block.[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>Importantly, you can derive on the generated struct, _and_ passthrough attributes, allowing you to use crates like [thiserror] or [strum].[0m
[INFO] [stdout] [32m>See the [`errgo`] documentation for other arguments accepted by the macro.[0m
[INFO] [stdout] [32m>```rust[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>#[errgo(derive(Debug, thiserror::Error))][0m
[INFO] [stdout] [32m>fn shave_yaks([0m
[INFO] [stdout] [32m>    num_yaks: usize,[0m
[INFO] [stdout] [32m>    empty_buckets: usize,[0m
[INFO] [stdout] [32m>    num_razors: usize,[0m
[INFO] [stdout] [32m>) -> Result<(), ShaveYaksError> {[0m
[INFO] [stdout] [32m>    if num_razors == 0 {[0m
[INFO] [stdout] [32m>        return Err(err!([0m
[INFO] [stdout] [32m>            #[error("not enough razors!")][0m
[INFO] [stdout] [32m>            NotEnoughRazors[0m
[INFO] [stdout] [32m>        ));[0m
[INFO] [stdout] [32m>    }[0m
[INFO] [stdout] [32m>    if num_yaks > empty_buckets {[0m
[INFO] [stdout] [32m>        return Err(err!([0m
[INFO] [stdout] [32m>            #[error("not enough buckets - needed {required}")][0m
[INFO] [stdout] [32m>            NotEnoughBuckets {[0m
[INFO] [stdout] [32m>                got: usize = empty_buckets,[0m
[INFO] [stdout] [32m>                required: usize = num_yaks,[0m
[INFO] [stdout] [32m>            }[0m
[INFO] [stdout] [32m>        ));[0m
[INFO] [stdout] [32m>    }[0m
[INFO] [stdout] [32m>    Ok(())[0m
[INFO] [stdout] [32m>}[0m
[INFO] [stdout] [32m>```[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>Which generates the following:[0m
[INFO] [stdout] [32m>```rust[0m
[INFO] [stdout] [32m>#[derive(Debug, thiserror::Error)][0m
[INFO] [stdout] [32m>enum ShaveYaksError {[0m
[INFO] [stdout] [32m>    #[error("not enough razors!")][0m
[INFO] [stdout] [32m>    NotEnoughRazors,[0m
[INFO] [stdout] [32m>    #[error("not enough buckets - needed {required}")][0m
[INFO] [stdout] [32m>    NotEnoughBuckets {[0m
[INFO] [stdout] [32m>        got: usize,[0m
[INFO] [stdout] [32m>        required: usize,[0m
[INFO] [stdout] [32m>    }[0m
[INFO] [stdout] [32m>}[0m
[INFO] [stdout] [32m>```[0m
[INFO] [stdout] [32m>And `err!` macro invocations are replaced with struct instantiations - no matter where they are in the function body![0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>If you need to reuse the same variant within a function, just use the normal construction syntax:[0m
[INFO] [stdout] [32m>```rust[0m
[INFO] [stdout] [32m>#[errgo][0m
[INFO] [stdout] [32m>fn foo() -> Result<(), FooError> {[0m
[INFO] [stdout] [32m>    fallible_op().map_err(|e| err!(IoError(io::Error = e)));[0m
[INFO] [stdout] [32m>    Err(FooError::IoError(todo!()))[0m
[INFO] [stdout] [32m>}[0m
[INFO] [stdout] [32m>```[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] [32m>[anyhow]: https://docs.rs/anyhow[0m
[INFO] [stdout] [32m>[thiserror]: https://docs.rs/thiserror[0m
[INFO] [stdout] [32m>[strum]: https://docs.rs/strum[0m
[INFO] [stdout] [32m>[0m
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x769fadaf7782 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x769fadaf7782 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x769fadaf7782 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x769fadaf7782 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x769fadb27e7a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x769fadb27e7a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x769fadaa9da6 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x769fadaa9da6 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x769fadac7cd4 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x769fadac7cd4 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x769fadac7b6c - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x63923151cdfe - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x63923151cdfe - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x769fadac7ff2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x769fadac7ff2 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x769fadac7d88 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x769fadabf929 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x769fada9b7cd - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x769fadb36d7c - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x6392312a5cdb - errgo::tests::readme::ha30218ac35186ab3
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:331:9
[INFO] [stdout]   20:     0x6392312a5d37 - errgo::tests::readme::{{closure}}::h307ec8f2f8709e31
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:323:16
[INFO] [stdout]   21:     0x63923128f416 - core::ops::function::FnOnce::call_once::had6fb3bbfc71aa0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x63923151cbfb - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x63923151cbfb - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   24:     0x6392315305ca - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   25:     0x6392315305ca - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   26:     0x6392315305ca - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   27:     0x6392315305ca - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   28:     0x6392315305ca - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x6392315305ca - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   30:     0x6392315305ca - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   31:     0x63923150aa24 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   32:     0x63923150aa24 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   33:     0x63923150e2e2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   34:     0x63923150e2e2 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   35:     0x63923150e2e2 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   36:     0x63923150e2e2 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   37:     0x63923150e2e2 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   38:     0x63923150e2e2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   39:     0x63923150e2e2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x769fadab9daf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   41:     0x769fadab9daf - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   42:     0x769fad854aa4 - <unknown>
[INFO] [stdout]   43:     0x769fad8e1a64 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::readme
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 13 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 16.07s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "811510af56bc84d4fcc0e78b8715c5945f27fb081f75884433dfe0bad16bba57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "811510af56bc84d4fcc0e78b8715c5945f27fb081f75884433dfe0bad16bba57", kill_on_drop: false }`
[INFO] [stdout] 811510af56bc84d4fcc0e78b8715c5945f27fb081f75884433dfe0bad16bba57
