[INFO] fetching crate reusable-fmt 0.2.0...
[INFO] checking reusable-fmt-0.2.0 against nightly-2024-02-05 for check-cfg-2
[INFO] extracting crate reusable-fmt 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate reusable-fmt 0.2.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reusable-fmt 0.2.0
[INFO] finished tweaking crates.io crate reusable-fmt 0.2.0
[INFO] tweaked toml for crates.io crate reusable-fmt 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0b11c5e3fb46f5bc758538a09d14b5af87d08c677308f2185d638dcf54bf888
[INFO] running `Command { std: "docker" "start" "-a" "f0b11c5e3fb46f5bc758538a09d14b5af87d08c677308f2185d638dcf54bf888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0b11c5e3fb46f5bc758538a09d14b5af87d08c677308f2185d638dcf54bf888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0b11c5e3fb46f5bc758538a09d14b5af87d08c677308f2185d638dcf54bf888", kill_on_drop: false }`
[INFO] [stdout] f0b11c5e3fb46f5bc758538a09d14b5af87d08c677308f2185d638dcf54bf888
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 584b5d974163f730d86eedec308f68b254180c68f62f178c697ad075fa1981ce
[INFO] running `Command { std: "docker" "start" "-a" "584b5d974163f730d86eedec308f68b254180c68f62f178c697ad075fa1981ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling pest v2.7.7
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling reusable-fmt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `extended_key_value_attributes` has been stable since 1.54.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:44:30
[INFO] [stdout]    |
[INFO] [stdout] 44 | #![cfg_attr(nightly, feature(extended_key_value_attributes))]
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `extended_key_value_attributes` has been stable since 1.54.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:44:30
[INFO] [stdout]    |
[INFO] [stdout] 44 | #![cfg_attr(nightly, feature(extended_key_value_attributes))]
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "584b5d974163f730d86eedec308f68b254180c68f62f178c697ad075fa1981ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584b5d974163f730d86eedec308f68b254180c68f62f178c697ad075fa1981ce", kill_on_drop: false }`
[INFO] [stdout] 584b5d974163f730d86eedec308f68b254180c68f62f178c697ad075fa1981ce
[INFO] checking reusable-fmt-0.2.0 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg-2
[INFO] extracting crate reusable-fmt 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate reusable-fmt 0.2.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reusable-fmt 0.2.0
[INFO] finished tweaking crates.io crate reusable-fmt 0.2.0
[INFO] tweaked toml for crates.io crate reusable-fmt 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d05959b261bfe69f9b18a8f505cc30afdc2cea30e3bc7111a7e637651130707
[INFO] running `Command { std: "docker" "start" "-a" "6d05959b261bfe69f9b18a8f505cc30afdc2cea30e3bc7111a7e637651130707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d05959b261bfe69f9b18a8f505cc30afdc2cea30e3bc7111a7e637651130707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d05959b261bfe69f9b18a8f505cc30afdc2cea30e3bc7111a7e637651130707", kill_on_drop: false }`
[INFO] [stdout] 6d05959b261bfe69f9b18a8f505cc30afdc2cea30e3bc7111a7e637651130707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 3832630fcd97abf87e13b479123aff74999de05338c3c3d72b10304dafe896f5
[INFO] running `Command { std: "docker" "start" "-a" "3832630fcd97abf87e13b479123aff74999de05338c3c3d72b10304dafe896f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling pest v2.7.7
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling reusable-fmt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 | #![cfg_attr(nightly, feature(extended_key_value_attributes))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]    = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:93:7
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[cfg(nightly)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 | #![cfg_attr(nightly, feature(extended_key_value_attributes))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]    = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:103:7
[INFO] [stdout]     |
[INFO] [stdout] 103 | #[cfg(nightly)]
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]   --> src/lib.rs:93:7
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[cfg(nightly)]
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:103:7
[INFO] [stdout]     |
[INFO] [stdout] 103 | #[cfg(nightly)]
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 | fmt_macro_gen!(fmt, format);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 | fmt_macro_gen!(fmt, format);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 | fmt_macro_gen!(fmt, format);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 | fmt_macro_gen!(fmt, format);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 | fmt_macro_gen!(fmt, format);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 | fmt_macro_gen!(fmt, format);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 | fmt_macro_gen!(fmt, format);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 | fmt_macro_gen!(prnt, print);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 | fmt_macro_gen!(fmt, format);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 | fmt_macro_gen!(prnt, print);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 | fmt_macro_gen!(prnt, print);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 | fmt_macro_gen!(prnt, print);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 | fmt_macro_gen!(prnt, print);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 | fmt_macro_gen!(prnt, print);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 | fmt_macro_gen!(prnt, print);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 | fmt_macro_gen!(prntln, println);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 | fmt_macro_gen!(prnt, print);
[INFO] [stdout]     | --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 | fmt_macro_gen!(prntln, println);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 | fmt_macro_gen!(prntln, println);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 | fmt_macro_gen!(prntln, println);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 | fmt_macro_gen!(prntln, println);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 | fmt_macro_gen!(prntln, println);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 | fmt_macro_gen!(prntln, println);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 190 | fmt_macro_gen!(eprnt, eprintln);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 | fmt_macro_gen!(prntln, println);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 190 | fmt_macro_gen!(eprnt, eprintln);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 190 | fmt_macro_gen!(eprnt, eprintln);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 190 | fmt_macro_gen!(eprnt, eprintln);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 190 | fmt_macro_gen!(eprnt, eprintln);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 190 | fmt_macro_gen!(eprnt, eprintln);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 | fmt_macro_gen!(eprntln, eprintln);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 190 | fmt_macro_gen!(eprnt, eprintln);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 | fmt_macro_gen!(eprntln, eprintln);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 190 | fmt_macro_gen!(eprnt, eprintln);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 | fmt_macro_gen!(eprntln, eprintln);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:20
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 | fmt_macro_gen!(eprntln, eprintln);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:121:38
[INFO] [stdout]     |
[INFO] [stdout] 121 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 | fmt_macro_gen!(eprntln, eprintln);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 | fmt_macro_gen!(eprntln, eprintln);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:156:20
[INFO] [stdout]     |
[INFO] [stdout] 156 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 | write_macro_gen!(wrt, write);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 | fmt_macro_gen!(eprntln, eprintln);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:156:38
[INFO] [stdout]     |
[INFO] [stdout] 156 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 | write_macro_gen!(wrt, write);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:134:38
[INFO] [stdout]     |
[INFO] [stdout] 134 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = fmt_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 | fmt_macro_gen!(eprntln, eprintln);
[INFO] [stdout]     | --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `fmt_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = write_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 | write_macro_gen!(wrt, write);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:156:20
[INFO] [stdout]     |
[INFO] [stdout] 156 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 | write_macro_gen!(wrt, write);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:170:38
[INFO] [stdout]     |
[INFO] [stdout] 170 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = write_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 | write_macro_gen!(wrt, write);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:156:38
[INFO] [stdout]     |
[INFO] [stdout] 156 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 | write_macro_gen!(wrt, write);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:156:20
[INFO] [stdout]     |
[INFO] [stdout] 156 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 | write_macro_gen!(wrtln, writeln);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = write_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 | write_macro_gen!(wrt, write);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:170:38
[INFO] [stdout]     |
[INFO] [stdout] 170 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = write_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 | write_macro_gen!(wrt, write);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:156:38
[INFO] [stdout]     |
[INFO] [stdout] 156 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 | write_macro_gen!(wrtln, writeln);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:156:20
[INFO] [stdout]     |
[INFO] [stdout] 156 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 | write_macro_gen!(wrtln, writeln);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = write_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 | write_macro_gen!(wrtln, writeln);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:156:38
[INFO] [stdout]     |
[INFO] [stdout] 156 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = concat!("Wrapper around [`", concat!(stringify!($mac), "!`]"))))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 | write_macro_gen!(wrtln, writeln);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:170:38
[INFO] [stdout]     |
[INFO] [stdout] 170 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = write_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 | write_macro_gen!(wrtln, writeln);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = write_usage!($name)))]
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 | write_macro_gen!(wrtln, writeln);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `nightly`
[INFO] [stdout]    --> src/lib.rs:170:38
[INFO] [stdout]     |
[INFO] [stdout] 170 |         #[cfg_attr(nightly, cfg_attr(nightly, doc = write_usage!($name)))]
[INFO] [stdout]     |                                      ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 | write_macro_gen!(wrtln, writeln);
[INFO] [stdout]     | -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(nightly)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: this error originates in the macro `__mac_wc` which comes from the expansion of the macro `write_macro_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `extended_key_value_attributes` has been stable since 1.54.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:44:30
[INFO] [stdout]    |
[INFO] [stdout] 44 | #![cfg_attr(nightly, feature(extended_key_value_attributes))]
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `extended_key_value_attributes` has been stable since 1.54.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:44:30
[INFO] [stdout]    |
[INFO] [stdout] 44 | #![cfg_attr(nightly, feature(extended_key_value_attributes))]
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 31 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 31 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reusable-fmt` (lib) due to 32 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `reusable-fmt` (lib test) due to 32 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3832630fcd97abf87e13b479123aff74999de05338c3c3d72b10304dafe896f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3832630fcd97abf87e13b479123aff74999de05338c3c3d72b10304dafe896f5", kill_on_drop: false }`
[INFO] [stdout] 3832630fcd97abf87e13b479123aff74999de05338c3c3d72b10304dafe896f5
