[INFO] fetching crate mabe 1.5.0...
[INFO] testing mabe-1.5.0 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate mabe 1.5.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate mabe 1.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mabe 1.5.0
[INFO] tweaked toml for crates.io crate mabe 1.5.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mabe 1.5.0 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mabe 1.5.0 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0241dbfc91339842b04551a772734c74470a9d2210029d2f66f21518ecd59730
[INFO] running `Command { std: "docker" "start" "-a" "0241dbfc91339842b04551a772734c74470a9d2210029d2f66f21518ecd59730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0241dbfc91339842b04551a772734c74470a9d2210029d2f66f21518ecd59730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0241dbfc91339842b04551a772734c74470a9d2210029d2f66f21518ecd59730", kill_on_drop: false }`
[INFO] [stdout] 0241dbfc91339842b04551a772734c74470a9d2210029d2f66f21518ecd59730
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfa9888664059edb4d92d3a1e355eecc7558130ec6a1bc1ac48e741287b9ad11
[INFO] running `Command { std: "docker" "start" "-a" "dfa9888664059edb4d92d3a1e355eecc7558130ec6a1bc1ac48e741287b9ad11", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling mabe v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.20s
[INFO] running `Command { std: "docker" "inspect" "dfa9888664059edb4d92d3a1e355eecc7558130ec6a1bc1ac48e741287b9ad11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfa9888664059edb4d92d3a1e355eecc7558130ec6a1bc1ac48e741287b9ad11", kill_on_drop: false }`
[INFO] [stdout] dfa9888664059edb4d92d3a1e355eecc7558130ec6a1bc1ac48e741287b9ad11
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2200c15ff74b869881691d1c947143b8758597dce1b47506b8fde574ba9abdd3
[INFO] running `Command { std: "docker" "start" "-a" "2200c15ff74b869881691d1c947143b8758597dce1b47506b8fde574ba9abdd3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling mabe v1.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]  --> tests/tuple_variants.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Mabe)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]  --> tests/unit_variants.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Mabe)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]  --> tests/struct_variants.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Mabe)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/struct_variants.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 24 |     assert_eq!(error1.state(), "Error::Struct1 { msg: Something... }");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/unit_variants.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 55 |     assert_eq!(error1.state(), "Error::Unit1");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/struct_variants.rs:25:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 25 |     assert_eq!(error1.error(), "The error message for Struct1. The placeholders are: 0, Something..., {0}, None, and {None}.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/tuple_variants.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 24 |     assert_eq!(error1.state(), "Error::Tuple1(x)");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/struct_variants.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 26 |     assert_eq!(error1.debug(), "The debug message for Struct1. The placeholders are: 007, 420, 000, and false.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/unit_variants.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 56 |     assert_eq!(error1.error(), "The error message for Unit1. This is a test.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/struct_variants.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 30 |         error1.to_string(),
[INFO] [stdout]    |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Error: std::fmt::Display`
[INFO] [stdout]            which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/tuple_variants.rs:25:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 25 |     assert_eq!(error1.error(), "The error message for Tuple1. The placeholders are: x, y, {0}, msg, and {cause}.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/struct_variants.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 |     println!("{}", error1);
[INFO] [stdout]    |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]   --> tests/struct_variants.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/unit_variants.rs:57:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 57 |     assert_eq!(error1.debug(), "");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/tuple_variants.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 26 |     assert_eq!(error1.debug(), "The debug message for Tuple1. The placeholders are: 007, 420, 000, and false.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/struct_variants.rs:43:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 43 |     assert_eq!(error2.state(), "Error::Struct2 { speed: 100 }");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/unit_variants.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 60 |     assert_eq!(error1.to_string(), "\n[error] The error message for Unit1. This is a test.");
[INFO] [stdout]    |                       ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Error: std::fmt::Display`
[INFO] [stdout]            which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/struct_variants.rs:44:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 44 |     assert_eq!(error2.error(), "The error message for Struct2. The placeholders are: , {}, {msg}, 100, and height.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tuple_variants.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 30 |         error1.to_string(),
[INFO] [stdout]    |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Error: std::fmt::Display`
[INFO] [stdout]            which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/struct_variants.rs:45:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 45 |     assert_eq!(error2.debug(), "The debug message for Struct2. The placeholders are: comment, -0, 0, and 0.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/unit_variants.rs:65:20
[INFO] [stdout]    |
[INFO] [stdout] 65 |     println!("{}", error1);
[INFO] [stdout]    |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]   --> tests/unit_variants.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tuple_variants.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 |     println!("{}", error1);
[INFO] [stdout]    |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]   --> tests/tuple_variants.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/struct_variants.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 49 |         error2.to_string(),
[INFO] [stdout]    |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Error: std::fmt::Display`
[INFO] [stdout]            which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/struct_variants.rs:59:20
[INFO] [stdout]    |
[INFO] [stdout] 59 |     println!("{}", error2);
[INFO] [stdout]    |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]   --> tests/struct_variants.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/struct_variants.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 62 |     assert_eq!(error3.state(), "Error::Struct3 { comment: msg, height: 100487, ratio: 3.1415 }");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/tuple_variants.rs:43:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 43 |     assert_eq!(error2.state(), "Error::Tuple2(-53)");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/struct_variants.rs:63:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 63 |     assert_eq!(error3.error(), "The error message for Struct3. The placeholders are: {0}, 3.1415, 100487, 2, and {--1}.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/unit_variants.rs:68:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 68 |     assert_eq!(error2.state(), "Error::Unit2");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/unit_variants.rs:69:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 69 |     assert_eq!(error2.error(), "The error message for Unit2. This is a {test}.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/struct_variants.rs:64:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 64 |     assert_eq!(error3.debug(), "The debug message for Struct3. The placeholders are: msg, {0}, 3.1415, and {ratio}.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/tuple_variants.rs:44:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 44 |     assert_eq!(error2.error(), "The error message for Tuple2. The placeholders are: , {}, {-53}, 1.5, and -53.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/struct_variants.rs:68:16
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 68 |         error3.to_string(),
[INFO] [stdout]    |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Error: std::fmt::Display`
[INFO] [stdout]            which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/unit_variants.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 70 |     assert_eq!(error2.debug(), "The debug message for Unit2. This is a {test}.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/struct_variants.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |     println!("{}", error3);
[INFO] [stdout]    |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]   --> tests/struct_variants.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/tuple_variants.rs:45:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 45 |     assert_eq!(error2.debug(), "The debug message for Tuple2. The placeholders are: -53, -0, -53, and 0.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/unit_variants.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 74 |         error2.to_string(),
[INFO] [stdout]    |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Error: std::fmt::Display`
[INFO] [stdout]            which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/unit_variants.rs:84:20
[INFO] [stdout]    |
[INFO] [stdout] 84 |     println!("{}", error2);
[INFO] [stdout]    |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]   --> tests/unit_variants.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tuple_variants.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 49 |         error2.to_string(),
[INFO] [stdout]    |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Error: std::fmt::Display`
[INFO] [stdout]            which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tuple_variants.rs:59:20
[INFO] [stdout]    |
[INFO] [stdout] 59 |     println!("{}", error2);
[INFO] [stdout]    |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]   --> tests/tuple_variants.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/tuple_variants.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 62 |     assert_eq!(error3.state(), "Error::Tuple3(msg, 100487, 3.1415)");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/unit_variants.rs:87:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 87 |     assert_eq!(error3.state(), "Error::Unit3");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/tuple_variants.rs:63:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 63 |     assert_eq!(error3.error(), "The error message for Tuple3. The placeholders are: {0}, 3.1415, 100487, 3.1415, and {--1}.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/tuple_variants.rs:64:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 64 |     assert_eq!(error3.debug(), "The debug message for Tuple3. The placeholders are: 100487, {msg}, 3.1415, and {1}.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/unit_variants.rs:88:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 88 |     assert_eq!(error3.error(), "The error message for Unit3. This is a test}.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mabe` (test "struct_variants") due to 16 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tuple_variants.rs:68:16
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 68 |         error3.to_string(),
[INFO] [stdout]    |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Error: std::fmt::Display`
[INFO] [stdout]            which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tuple_variants.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |     println!("{}", error3);
[INFO] [stdout]    |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]   --> tests/tuple_variants.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ^^^^^^^^^^
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]   --> tests/unit_variants.rs:89:23
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 89 |     assert_eq!(error3.debug(), "The debug message for Unit3. This is a {test.");
[INFO] [stdout]    |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/unit_variants.rs:93:16
[INFO] [stdout]    |
[INFO] [stdout]  7 | enum Error {
[INFO] [stdout]    | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 93 |         error3.to_string(),
[INFO] [stdout]    |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Error: std::fmt::Display`
[INFO] [stdout]            which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:103:20
[INFO] [stdout]     |
[INFO] [stdout] 103 |     println!("{}", error3);
[INFO] [stdout]     |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]     |               |
[INFO] [stdout]     |               required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]    --> tests/unit_variants.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:106:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 106 |     assert_eq!(error4.state(), "Error::Unit4");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mabe` (test "tuple_variants") due to 16 previous errors
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:107:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 107 |     assert_eq!(error4.error(), "The error message for Unit4. This is a {test.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:108:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 108 |     assert_eq!(error4.debug(), "The debug message for Unit4. This is a test}.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:112:16
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 112 |         error4.to_string(),
[INFO] [stdout]     |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Error: std::fmt::Display`
[INFO] [stdout]             which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]    --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:122:20
[INFO] [stdout]     |
[INFO] [stdout] 122 |     println!("{}", error4);
[INFO] [stdout]     |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]     |               |
[INFO] [stdout]     |               required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]    --> tests/unit_variants.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:125:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 125 |     assert_eq!(error5.state(), "Error::Unit5");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:126:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 126 |     assert_eq!(error5.error(), "The error message for Unit5. This is a test}}.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:127:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 127 |     assert_eq!(error5.debug(), "The debug message for Unit5. This is a {{test.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:131:16
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 131 |         error5.to_string(),
[INFO] [stdout]     |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Error: std::fmt::Display`
[INFO] [stdout]             which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]    --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:141:20
[INFO] [stdout]     |
[INFO] [stdout] 141 |     println!("{}", error5);
[INFO] [stdout]     |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]     |               |
[INFO] [stdout]     |               required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]    --> tests/unit_variants.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:144:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 144 |     assert_eq!(error6.state(), "Error::Unit6");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:145:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 145 |     assert_eq!(error6.error(), "The error message for Unit6. This is a {test}.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:146:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 146 |     assert_eq!(error6.debug(), "The debug message for Unit6. This is a test}} and a {{{test.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:150:16
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 150 |         error6.to_string(),
[INFO] [stdout]     |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Error: std::fmt::Display`
[INFO] [stdout]             which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]    --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:160:20
[INFO] [stdout]     |
[INFO] [stdout] 160 |     println!("{}", error6);
[INFO] [stdout]     |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]     |               |
[INFO] [stdout]     |               required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]    --> tests/unit_variants.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:163:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 163 |     assert_eq!(error7.state(), "Error::Unit7");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:164:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 164 |     assert_eq!(error7.error(), "The error message for Unit7. This is a {test}} and a {{test}.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:165:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 165 |     assert_eq!(error7.debug(), "The debug message for Unit7. This is a test}.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:169:16
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 169 |         error7.to_string(),
[INFO] [stdout]     |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Error: std::fmt::Display`
[INFO] [stdout]             which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]    --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:179:20
[INFO] [stdout]     |
[INFO] [stdout] 179 |     println!("{}", error7);
[INFO] [stdout]     |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]     |               |
[INFO] [stdout]     |               required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]    --> tests/unit_variants.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:182:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 182 |     assert_eq!(error8.state(), "Error::Unit8");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:183:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 183 |     assert_eq!(error8.error(), "The error message for Unit8. This is a { test }.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:184:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 184 |     assert_eq!(error8.debug(), "The debug message for Unit8. This is a  test  and a { test }.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:188:16
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 188 |         error8.to_string(),
[INFO] [stdout]     |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Error: std::fmt::Display`
[INFO] [stdout]             which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]    --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:198:20
[INFO] [stdout]     |
[INFO] [stdout] 198 |     println!("{}", error8);
[INFO] [stdout]     |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]     |               |
[INFO] [stdout]     |               required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]    --> tests/unit_variants.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:201:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 201 |     assert_eq!(error9.state(), "Error::Unit9");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:202:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 202 |     assert_eq!(error9.error(), "The error message for Unit9. This is a  test{ }.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:203:23
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 203 |     assert_eq!(error9.debug(), "The debug message for Unit9. This is a  {test } and a { test }.");
[INFO] [stdout]     |                       ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:207:16
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 207 |         error9.to_string(),
[INFO] [stdout]     |                ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Error: std::fmt::Display`
[INFO] [stdout]             which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]    --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:217:20
[INFO] [stdout]     |
[INFO] [stdout] 217 |     println!("{}", error9);
[INFO] [stdout]     |               --   ^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]     |               |
[INFO] [stdout]     |               required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]    --> tests/unit_variants.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:220:24
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 220 |     assert_eq!(error10.state(), "Error::Unit10");
[INFO] [stdout]     |                        ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:221:24
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 221 |     assert_eq!(error10.error(), "The error message for Unit10. This is a {test{}} and a {test}.");
[INFO] [stdout]     |                        ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:222:24
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 222 |     assert_eq!(error10.debug(), "The debug message for Unit10. This is a {test{}.");
[INFO] [stdout]     |                        ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:226:17
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 226 |         error10.to_string(),
[INFO] [stdout]     |                 ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Error: std::fmt::Display`
[INFO] [stdout]             which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]    --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:236:20
[INFO] [stdout]     |
[INFO] [stdout] 236 |     println!("{}", error10);
[INFO] [stdout]     |               --   ^^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]     |               |
[INFO] [stdout]     |               required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]    --> tests/unit_variants.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `state` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:239:24
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `state` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 239 |     assert_eq!(error11.state(), "Error::Unit11");
[INFO] [stdout]     |                        ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `error` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:240:24
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `error` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 240 |     assert_eq!(error11.error(), "The error message for Unit11. This is a {{}test{}.");
[INFO] [stdout]     |                        ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `debug` found for enum `Error` in the current scope
[INFO] [stdout]    --> tests/unit_variants.rs:241:24
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `debug` not found for this enum
[INFO] [stdout] ...
[INFO] [stdout] 241 |     assert_eq!(error11.debug(), "The debug message for Unit11. This is a {test and a test{{}}.");
[INFO] [stdout]     |                        ^^^^^ method not found in `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ---------- method `to_string` not found for this enum because it doesn't satisfy `Error: ToString` or `Error: std::fmt::Display`
[INFO] [stdout] ...
[INFO] [stdout] 245 |         error11.to_string(),
[INFO] [stdout]     |                 ^^^^^^^^^ method cannot be called on `Error` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Error: std::fmt::Display`
[INFO] [stdout]             which is required by `Error: ToString`
[INFO] [stdout] note: the trait `std::fmt::Display` must be implemented
[INFO] [stdout]    --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/fmt/mod.rs:1186:0
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `to_string`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Error` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> tests/unit_variants.rs:255:20
[INFO] [stdout]     |
[INFO] [stdout] 255 |     println!("{}", error11);
[INFO] [stdout]     |               --   ^^^^^^^ `Error` cannot be formatted with the default formatter
[INFO] [stdout]     |               |
[INFO] [stdout]     |               required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `std::fmt::Display` is not implemented for `Error`
[INFO] [stdout]    --> tests/unit_variants.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mabe` (test "unit_variants") due to 56 previous errors
[INFO] running `Command { std: "docker" "inspect" "2200c15ff74b869881691d1c947143b8758597dce1b47506b8fde574ba9abdd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2200c15ff74b869881691d1c947143b8758597dce1b47506b8fde574ba9abdd3", kill_on_drop: false }`
[INFO] [stdout] 2200c15ff74b869881691d1c947143b8758597dce1b47506b8fde574ba9abdd3
