[INFO] fetching crate errgo 0.1.4...
[INFO] testing errgo-0.1.4 against 1.75.0 for beta-1.76-1
[INFO] extracting crate errgo 0.1.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate errgo 0.1.4 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6408e81a41b135a921c7371288a0c856195cb0ca00cbfc613c528552ca088be7
[INFO] running `Command { std: "docker" "start" "-a" "6408e81a41b135a921c7371288a0c856195cb0ca00cbfc613c528552ca088be7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6408e81a41b135a921c7371288a0c856195cb0ca00cbfc613c528552ca088be7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6408e81a41b135a921c7371288a0c856195cb0ca00cbfc613c528552ca088be7", kill_on_drop: false }`
[INFO] [stdout] 6408e81a41b135a921c7371288a0c856195cb0ca00cbfc613c528552ca088be7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dc830fd86519ec244b3e7679a75ae5e26730da75ec4552ff8b4105c68ab8616
[INFO] running `Command { std: "docker" "start" "-a" "0dc830fd86519ec244b3e7679a75ae5e26730da75ec4552ff8b4105c68ab8616", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling errgo v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "0dc830fd86519ec244b3e7679a75ae5e26730da75ec4552ff8b4105c68ab8616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dc830fd86519ec244b3e7679a75ae5e26730da75ec4552ff8b4105c68ab8616", kill_on_drop: false }`
[INFO] [stdout] 0dc830fd86519ec244b3e7679a75ae5e26730da75ec4552ff8b4105c68ab8616
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f0cdf03cdad69312bcad2485b3873246e31d982f5098bd9d03167f190dd523c
[INFO] running `Command { std: "docker" "start" "-a" "9f0cdf03cdad69312bcad2485b3873246e31d982f5098bd9d03167f190dd523c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling trybuild v1.0.87
[INFO] [stderr]    Compiling termcolor v1.4.0
[INFO] [stderr]    Compiling dissimilar v1.0.7
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pretty_assertions v1.4.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling basic-toml v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling errgo v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.92s
[INFO] running `Command { std: "docker" "inspect" "9f0cdf03cdad69312bcad2485b3873246e31d982f5098bd9d03167f190dd523c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f0cdf03cdad69312bcad2485b3873246e31d982f5098bd9d03167f190dd523c", kill_on_drop: false }`
[INFO] [stdout] 9f0cdf03cdad69312bcad2485b3873246e31d982f5098bd9d03167f190dd523c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e873942ecfa006dcfafca6d0debc74ef05762984287783a6ab64970b61e10ee2
[INFO] running `Command { std: "docker" "start" "-a" "e873942ecfa006dcfafca6d0debc74ef05762984287783a6ab64970b61e10ee2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/errgo-a957c04f73f375bd)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test config::tests::parse_visibility ... ok
[INFO] [stdout] test config::tests::parse_attributes ... ok
[INFO] [stdout] test config::tests::parse_derives ... ok
[INFO] [stdout] test config::tests::parse_all ... ok
[INFO] [stdout] test data::tests::parse_unit_variant_with_discriminant ... ok
[INFO] [stdout] test data::tests::parse_unit_variant ... ok
[INFO] [stdout] test data::tests::parse_unnamed_variant ... ok
[INFO] [stdout] test data::tests::parse_named_variant ... ok
[INFO] [stdout] test data::tests::use_unit_variant ... ok
[INFO] [stdout] test tests::get_result_name ... ok
[INFO] [stdout] test data::tests::use_unnamed_variant ... ok
[INFO] [stdout] test data::tests::use_named_variant ... ok
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stdout] test tests::readme ... FAILED
[INFO] [stderr]    Compiling pretty_assertions v1.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[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 [unoptimized + debuginfo] target(s) in 5.56s
[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)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[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)]` 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] [stdout] test tests::trybuild ... ok
[INFO] [stderr] test trybuild/fail/unsupported_macro_args.rs [should fail to compile] ... ok
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] failures:
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] ---- tests::readme stdout ----
[INFO] [stdout] thread 'tests::readme' 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:     0x7f40f5c1462c - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x7f40f5c1462c - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x7f40f5c1462c - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x7f40f5c1462c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x7f40f5c67630 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x7f40f5c67630 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x7f40f5c084bf - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x7f40f5c14414 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x7f40f5c14414 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x7f40f5c170a7 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x7f40f5c16d93 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x7f40f5ce2d07 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x7f40f5ce2d07 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x7f40f5c177e8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x7f40f5c177e8 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x7f40f5c1753e - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x7f40f5c14af6 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x7f40f5c172a2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x7f40f5c63d15 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x56260dfb7597 - errgo::tests::readme::h328ebeec9a67503a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:331:9
[INFO] [stdout]   20:     0x56260dfb71f7 - errgo::tests::readme::{{closure}}::h265bb8e7f7be43bf
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:323:16
[INFO] [stdout]   21:     0x56260df9a246 - core::ops::function::FnOnce::call_once::h849d509bfc3b2952
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x7f40f5ce8c9f - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x7f40f5ce8c9f - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   24:     0x7f40f5ce7cb5 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   25:     0x7f40f5ce7cb5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   26:     0x7f40f5ce7cb5 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   27:     0x7f40f5ce7cb5 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   28:     0x7f40f5ce7cb5 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   29:     0x7f40f5ce7cb5 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   30:     0x7f40f5ce7cb5 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   31:     0x7f40f5caba26 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   32:     0x7f40f5caba26 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   33:     0x7f40f5cb0ad7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   34:     0x7f40f5cb0ad7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   35:     0x7f40f5cb0ad7 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   36:     0x7f40f5cb0ad7 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   37:     0x7f40f5cb0ad7 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   38:     0x7f40f5cb0ad7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   39:     0x7f40f5cb0ad7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x7f40f5c216a5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   41:     0x7f40f5c216a5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   42:     0x7f40f5c216a5 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   43:     0x7f40f58abac3 - <unknown>
[INFO] [stdout]   44:     0x7f40f593cbf4 - __clone
[INFO] [stdout]   45:                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 8.19s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "e873942ecfa006dcfafca6d0debc74ef05762984287783a6ab64970b61e10ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e873942ecfa006dcfafca6d0debc74ef05762984287783a6ab64970b61e10ee2", kill_on_drop: false }`
[INFO] [stdout] e873942ecfa006dcfafca6d0debc74ef05762984287783a6ab64970b61e10ee2
