[INFO] fetching crate log4rust 0.1.6...
[INFO] testing log4rust-0.1.6 against 1.76.0 for beta-1.77-1
[INFO] extracting crate log4rust 0.1.6 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate log4rust 0.1.6 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log4rust 0.1.6
[INFO] finished tweaking crates.io crate log4rust 0.1.6
[INFO] tweaked toml for crates.io crate log4rust 0.1.6 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" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hootbin v0.1.1
[INFO] [stderr]   Downloaded hoot v0.1.3
[INFO] [stderr]   Downloaded ureq v2.9.5
[INFO] [stderr]   Downloaded webpki-roots v0.26.1
[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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f01f658e73534116a32d296076e2efc9bcb7298394002371fbc8356d38c6ef1
[INFO] running `Command { std: "docker" "start" "-a" "3f01f658e73534116a32d296076e2efc9bcb7298394002371fbc8356d38c6ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f01f658e73534116a32d296076e2efc9bcb7298394002371fbc8356d38c6ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f01f658e73534116a32d296076e2efc9bcb7298394002371fbc8356d38c6ef1", kill_on_drop: false }`
[INFO] [stdout] 3f01f658e73534116a32d296076e2efc9bcb7298394002371fbc8356d38c6ef1
[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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b94b5298d528f21709afe8c86459dc09023014f2bd725698abdd54bfa05a36f4
[INFO] running `Command { std: "docker" "start" "-a" "b94b5298d528f21709afe8c86459dc09023014f2bd725698abdd54bfa05a36f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling colored v2.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling chrono v0.4.34
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling log4rust v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `Command { std: "docker" "inspect" "b94b5298d528f21709afe8c86459dc09023014f2bd725698abdd54bfa05a36f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b94b5298d528f21709afe8c86459dc09023014f2bd725698abdd54bfa05a36f4", kill_on_drop: false }`
[INFO] [stdout] b94b5298d528f21709afe8c86459dc09023014f2bd725698abdd54bfa05a36f4
[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" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce8d1131edb2eb5741d6df34305f1d309711e4082c89ff0263cbeb780bbed116
[INFO] running `Command { std: "docker" "start" "-a" "ce8d1131edb2eb5741d6df34305f1d309711e4082c89ff0263cbeb780bbed116", kill_on_drop: false }`
[INFO] [stderr]    Compiling log4rust v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "ce8d1131edb2eb5741d6df34305f1d309711e4082c89ff0263cbeb780bbed116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce8d1131edb2eb5741d6df34305f1d309711e4082c89ff0263cbeb780bbed116", kill_on_drop: false }`
[INFO] [stdout] ce8d1131edb2eb5741d6df34305f1d309711e4082c89ff0263cbeb780bbed116
[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" "+1.76.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b2c09b7a36ebe8b560b19bdb0163f027702616fd6555ac5f24f17bca938b134
[INFO] running `Command { std: "docker" "start" "-a" "2b2c09b7a36ebe8b560b19bdb0163f027702616fd6555ac5f24f17bca938b134", 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/log4rust-32111485b1578c5a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests log4rust
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 8) ... FAILED
[INFO] [stdout] test src/config.rs - config::Config (line 85) ... FAILED
[INFO] [stdout] test src/config.rs - config::Config (line 60) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 8) stdout ----
[INFO] [stdout] error: cannot find macro `fatal` in this scope
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fatal!("This is something fatal");
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::fatal;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `error` in this scope
[INFO] [stdout]  --> src/lib.rs:15:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     error!("This is an error");
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::error;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `warn` in this scope
[INFO] [stdout]  --> src/lib.rs:14:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     warn!("This is a warning");
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `warn` is in scope, but it is an attribute: `#[warn]`
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::warn;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `info` in this scope
[INFO] [stdout]  --> src/lib.rs:13:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     info!("This is some info");
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::info;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/config.rs - config::Config (line 85) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Time`
[INFO] [stdout]  --> src/config.rs:88:10
[INFO] [stdout]   |
[INFO] [stdout] 6 |    .time(Time::UTC)
[INFO] [stdout]   |          ^^^^ use of undeclared type `Time`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::Time;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Log`
[INFO] [stdout]  --> src/config.rs:89:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |    .set_type(Log::Info)?.console(Console::_None)?
[INFO] [stdout]   |              ^^^ use of undeclared type `Log`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::Log;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Console`
[INFO] [stdout]  --> src/config.rs:89:34
[INFO] [stdout]   |
[INFO] [stdout] 7 |    .set_type(Log::Info)?.console(Console::_None)?
[INFO] [stdout]   |                                  ^^^^^^^ use of undeclared type `Console`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::Console;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/config.rs:89:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_85_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 |    .set_type(Log::Info)?.console(Console::_None)?
[INFO] [stdout]   |                        ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/config.rs:89:49
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_85_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 |    .set_type(Log::Info)?.console(Console::_None)?
[INFO] [stdout]   |                                                 ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/config.rs - config::Config (line 60) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Time`
[INFO] [stdout]  --> src/config.rs:63:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |     .time(Time::Local)
[INFO] [stdout]   |           ^^^^ use of undeclared type `Time`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::Time;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Log`
[INFO] [stdout]  --> src/config.rs:64:15
[INFO] [stdout]   |
[INFO] [stdout] 7 |     .set_type(Log::Info)?
[INFO] [stdout]   |               ^^^ use of undeclared type `Log`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::Log;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Color`
[INFO] [stdout]  --> src/config.rs:65:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |         .color(Color::TrueColor{r:0,g:255,b:255})?
[INFO] [stdout]   |                ^^^^^ use of undeclared type `Color`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 2 + use colored::Color;
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::Color;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Console`
[INFO] [stdout]  --> src/config.rs:66:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |         .console(Console::Stdout)?
[INFO] [stdout]   |                  ^^^^^^^ use of undeclared type `Console`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]   |
[INFO] [stdout] 2 + use log4rust::Console;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> src/config.rs:67:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |         .backtrace(Backtrace::_None)?
[INFO] [stdout]    |                    ^^^^^^^^^ use of undeclared type `Backtrace`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  + use backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Log`
[INFO] [stdout]   --> src/config.rs:68:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |     .set_type(Log::Warn)?
[INFO] [stdout]    |               ^^^ use of undeclared type `Log`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Log;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Color`
[INFO] [stdout]   --> src/config.rs:69:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |         .color(Color::TrueColor{r:255,g:215,b:185})?
[INFO] [stdout]    |                ^^^^^ use of undeclared type `Color`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  + use colored::Color;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Color;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Console`
[INFO] [stdout]   --> src/config.rs:70:18
[INFO] [stdout]    |
[INFO] [stdout] 13 |         .console(Console::Stderr)?
[INFO] [stdout]    |                  ^^^^^^^ use of undeclared type `Console`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Console;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> src/config.rs:71:20
[INFO] [stdout]    |
[INFO] [stdout] 14 |         .backtrace(Backtrace::_None)?
[INFO] [stdout]    |                    ^^^^^^^^^ use of undeclared type `Backtrace`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  + use backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Log`
[INFO] [stdout]   --> src/config.rs:72:15
[INFO] [stdout]    |
[INFO] [stdout] 15 |     .set_type(Log::Error)?
[INFO] [stdout]    |               ^^^ use of undeclared type `Log`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Log;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Color`
[INFO] [stdout]   --> src/config.rs:73:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |         .color(Color::TrueColor{r:255,g:100,b:0})?
[INFO] [stdout]    |                ^^^^^ use of undeclared type `Color`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  + use colored::Color;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Color;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Console`
[INFO] [stdout]   --> src/config.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 17 |         .console(Console::Stderr)?
[INFO] [stdout]    |                  ^^^^^^^ use of undeclared type `Console`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Console;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> src/config.rs:75:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |         .backtrace(Backtrace::Simple)?
[INFO] [stdout]    |                    ^^^^^^^^^ use of undeclared type `Backtrace`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  + use backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Log`
[INFO] [stdout]   --> src/config.rs:76:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     .set_type(Log::Fatal)?
[INFO] [stdout]    |               ^^^ use of undeclared type `Log`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Log;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Color`
[INFO] [stdout]   --> src/config.rs:77:16
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .color(Color::TrueColor{r:255,g:0,b:0})?
[INFO] [stdout]    |                ^^^^^ use of undeclared type `Color`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  + use colored::Color;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Color;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Console`
[INFO] [stdout]   --> src/config.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 21 |         .console(Console::Stderr)?
[INFO] [stdout]    |                  ^^^^^^^ use of undeclared type `Console`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Console;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> src/config.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |         .backtrace(Backtrace::Complex)?
[INFO] [stdout]    |                    ^^^^^^^^^ use of undeclared type `Backtrace`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  + use backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use log4rust::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 2  + use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/config.rs:64:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 |     .set_type(Log::Info)?
[INFO] [stdout]   |                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/config.rs:65:50
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 |         .color(Color::TrueColor{r:0,g:255,b:255})?
[INFO] [stdout]   |                                                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/config.rs:66:34
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 |         .console(Console::Stdout)?
[INFO] [stdout]   |                                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:67:37
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 |         .backtrace(Backtrace::_None)?
[INFO] [stdout]    |                                     ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 11 |     .set_type(Log::Warn)?
[INFO] [stdout]    |                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:69:52
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 12 |         .color(Color::TrueColor{r:255,g:215,b:185})?
[INFO] [stdout]    |                                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:70:34
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 13 |         .console(Console::Stderr)?
[INFO] [stdout]    |                                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:71:37
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 14 |         .backtrace(Backtrace::_None)?
[INFO] [stdout]    |                                     ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 15 |     .set_type(Log::Error)?
[INFO] [stdout]    |                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:73:50
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 16 |         .color(Color::TrueColor{r:255,g:100,b:0})?
[INFO] [stdout]    |                                                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:74:34
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 17 |         .console(Console::Stderr)?
[INFO] [stdout]    |                                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:75:38
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 18 |         .backtrace(Backtrace::Simple)?
[INFO] [stdout]    |                                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:76:26
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 19 |     .set_type(Log::Fatal)?
[INFO] [stdout]    |                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:77:48
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 20 |         .color(Color::TrueColor{r:255,g:0,b:0})?
[INFO] [stdout]    |                                                ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:78:34
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 21 |         .console(Console::Stderr)?
[INFO] [stdout]    |                                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/config.rs:79:39
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_config_rs_60_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 22 |         .backtrace(Backtrace::Complex)?
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 33 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/config.rs - config::Config (line 60)
[INFO] [stdout]     src/config.rs - config::Config (line 85)
[INFO] [stdout]     src/lib.rs - (line 8)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "2b2c09b7a36ebe8b560b19bdb0163f027702616fd6555ac5f24f17bca938b134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b2c09b7a36ebe8b560b19bdb0163f027702616fd6555ac5f24f17bca938b134", kill_on_drop: false }`
[INFO] [stdout] 2b2c09b7a36ebe8b560b19bdb0163f027702616fd6555ac5f24f17bca938b134
