[INFO] fetching crate proc-macro2-fallback 1.0.66...
[INFO] checking proc-macro2-fallback-1.0.66 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate proc-macro2-fallback 1.0.66 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate proc-macro2-fallback 1.0.66 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 proc-macro2-fallback 1.0.66
[INFO] finished tweaking crates.io crate proc-macro2-fallback 1.0.66
[INFO] tweaked toml for crates.io crate proc-macro2-fallback 1.0.66 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" "+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-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc38b26f799a275d6a81ba19e5801e630847b0b5be04095fe128930364c89f8d
[INFO] running `Command { std: "docker" "start" "-a" "bc38b26f799a275d6a81ba19e5801e630847b0b5be04095fe128930364c89f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc38b26f799a275d6a81ba19e5801e630847b0b5be04095fe128930364c89f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc38b26f799a275d6a81ba19e5801e630847b0b5be04095fe128930364c89f8d", kill_on_drop: false }`
[INFO] [stdout] bc38b26f799a275d6a81ba19e5801e630847b0b5be04095fe128930364c89f8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b824cffde16dc179a1960306f1338bc7f7f7dc575c45c7a563eb146706818fb
[INFO] running `Command { std: "docker" "start" "-a" "4b824cffde16dc179a1960306f1338bc7f7f7dc575c45c7a563eb146706818fb", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking proc-macro2-fallback v1.0.66 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/marker.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(Rc<()>);
[INFO] [stdout]    |                   ------------------- ^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(());
[INFO] [stdout]    |                                       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/marker.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(Rc<()>);
[INFO] [stdout]    |                   ------------------- ^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(());
[INFO] [stdout]    |                                       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "4b824cffde16dc179a1960306f1338bc7f7f7dc575c45c7a563eb146706818fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b824cffde16dc179a1960306f1338bc7f7f7dc575c45c7a563eb146706818fb", kill_on_drop: false }`
[INFO] [stdout] 4b824cffde16dc179a1960306f1338bc7f7f7dc575c45c7a563eb146706818fb
[INFO] checking proc-macro2-fallback-1.0.66 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate proc-macro2-fallback 1.0.66 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate proc-macro2-fallback 1.0.66 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 proc-macro2-fallback 1.0.66
[INFO] finished tweaking crates.io crate proc-macro2-fallback 1.0.66
[INFO] tweaked toml for crates.io crate proc-macro2-fallback 1.0.66 written to /workspace/builds/worker-3-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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 81863f95d313380a7562ce178aeecfd8f2e34d3a3d3a375a6ebd160d42a456fc
[INFO] running `Command { std: "docker" "start" "-a" "81863f95d313380a7562ce178aeecfd8f2e34d3a3d3a375a6ebd160d42a456fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81863f95d313380a7562ce178aeecfd8f2e34d3a3d3a375a6ebd160d42a456fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81863f95d313380a7562ce178aeecfd8f2e34d3a3d3a375a6ebd160d42a456fc", kill_on_drop: false }`
[INFO] [stdout] 81863f95d313380a7562ce178aeecfd8f2e34d3a3d3a375a6ebd160d42a456fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a137a3f7b49c7abd338700bb16c009ba4041687d2ac74a4fd422817f70e515e1
[INFO] running `Command { std: "docker" "start" "-a" "a137a3f7b49c7abd338700bb16c009ba4041687d2ac74a4fd422817f70e515e1", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking proc-macro2-fallback v1.0.66 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected `cfg` condition name: `proc_macro_span`
[INFO] [stdout]   --> src/lib.rs:90:17
[INFO] [stdout]    |
[INFO] [stdout] 90 | #![cfg_attr(any(proc_macro_span, super_unstable), feature(proc_macro_span))]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(proc_macro_span)");` 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: `super_unstable`
[INFO] [stdout]   --> src/lib.rs:90:34
[INFO] [stdout]    |
[INFO] [stdout] 90 | #![cfg_attr(any(proc_macro_span, super_unstable), feature(proc_macro_span))]
[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(super_unstable)");` 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: `super_unstable`
[INFO] [stdout]   --> src/lib.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 | #![cfg_attr(super_unstable, feature(proc_macro_def_site))]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(super_unstable)");` 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: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 | #![cfg_attr(doc_cfg, feature(doc_cfg))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(doc_cfg)");` 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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/lib.rs:113:11
[INFO] [stdout]     |
[INFO] [stdout] 113 | #[cfg(all(procmacro2_semver_exempt, wrap_proc_macro, not(super_unstable)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:113:37
[INFO] [stdout]     |
[INFO] [stdout] 113 | #[cfg(all(procmacro2_semver_exempt, wrap_proc_macro, not(super_unstable)))]
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `super_unstable`
[INFO] [stdout]    --> src/lib.rs:113:58
[INFO] [stdout]     |
[INFO] [stdout] 113 | #[cfg(all(procmacro2_semver_exempt, wrap_proc_macro, not(super_unstable)))]
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(super_unstable)");` 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 value: `proc-macro`
[INFO] [stdout]    --> src/lib.rs:123:7
[INFO] [stdout]     |
[INFO] [stdout] 123 | #[cfg(feature = "proc-macro")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `proc-macro` as a feature in `Cargo.toml`
[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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:130:7
[INFO] [stdout]     |
[INFO] [stdout] 130 | #[cfg(wrap_proc_macro)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:140:11
[INFO] [stdout]     |
[INFO] [stdout] 140 | #[cfg(not(wrap_proc_macro))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:143:7
[INFO] [stdout]     |
[INFO] [stdout] 143 | #[cfg(wrap_proc_macro)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `span_locations`
[INFO] [stdout]    --> src/lib.rs:146:7
[INFO] [stdout]     |
[INFO] [stdout] 146 | #[cfg(span_locations)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/lib.rs:157:7
[INFO] [stdout]     |
[INFO] [stdout] 157 | #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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: `span_locations`
[INFO] [stdout]    --> src/lib.rs:160:7
[INFO] [stdout]     |
[INFO] [stdout] 160 | #[cfg(span_locations)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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 value: `proc-macro`
[INFO] [stdout]    --> src/lib.rs:236:7
[INFO] [stdout]     |
[INFO] [stdout] 236 | #[cfg(feature = "proc-macro")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `proc-macro` as a feature in `Cargo.toml`
[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 value: `proc-macro`
[INFO] [stdout]    --> src/lib.rs:244:7
[INFO] [stdout]     |
[INFO] [stdout] 244 | #[cfg(feature = "proc-macro")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `proc-macro` as a feature in `Cargo.toml`
[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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/lib.rs:323:11
[INFO] [stdout]     |
[INFO] [stdout] 323 | #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:323:45
[INFO] [stdout]     |
[INFO] [stdout] 323 | #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `super_unstable`
[INFO] [stdout]    --> src/lib.rs:323:63
[INFO] [stdout]     |
[INFO] [stdout] 323 | #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(super_unstable)");` 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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/lib.rs:331:11
[INFO] [stdout]     |
[INFO] [stdout] 331 | #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:331:45
[INFO] [stdout]     |
[INFO] [stdout] 331 | #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `super_unstable`
[INFO] [stdout]    --> src/lib.rs:331:63
[INFO] [stdout]     |
[INFO] [stdout] 331 | #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(super_unstable)");` 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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/lib.rs:364:11
[INFO] [stdout]     |
[INFO] [stdout] 364 | #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:364:45
[INFO] [stdout]     |
[INFO] [stdout] 364 | #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `super_unstable`
[INFO] [stdout]    --> src/lib.rs:364:63
[INFO] [stdout]     |
[INFO] [stdout] 364 | #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(super_unstable)");` 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: `span_locations`
[INFO] [stdout]   --> src/parse.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |     #[cfg(span_locations)]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]   --> src/parse.rs:21:19
[INFO] [stdout]    |
[INFO] [stdout] 21 |             #[cfg(span_locations)]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:176:15
[INFO] [stdout]     |
[INFO] [stdout] 176 |         #[cfg(span_locations)]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:183:23
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 #[cfg(span_locations)]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:189:27
[INFO] [stdout]     |
[INFO] [stdout] 189 |                 #[cfg(not(span_locations))]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:202:19
[INFO] [stdout]     |
[INFO] [stdout] 202 |             #[cfg(span_locations)]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:216:19
[INFO] [stdout]     |
[INFO] [stdout] 216 |             #[cfg(span_locations)]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:225:23
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 #[cfg(span_locations)]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:227:23
[INFO] [stdout]     |
[INFO] [stdout] 227 |                 #[cfg(span_locations)]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:238:23
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 #[cfg(span_locations)]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:240:23
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 #[cfg(span_locations)]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:250:15
[INFO] [stdout]     |
[INFO] [stdout] 250 |     #[cfg(not(span_locations))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:254:19
[INFO] [stdout]     |
[INFO] [stdout] 254 |             #[cfg(span_locations)]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:256:19
[INFO] [stdout]     |
[INFO] [stdout] 256 |             #[cfg(span_locations)]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:900:11
[INFO] [stdout]     |
[INFO] [stdout] 900 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:904:15
[INFO] [stdout]     |
[INFO] [stdout] 904 |         #[cfg(span_locations)]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/parse.rs:906:15
[INFO] [stdout]     |
[INFO] [stdout] 906 |         #[cfg(span_locations)]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]  --> src/fallback.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[cfg(span_locations)]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]  --> src/fallback.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `fuzzing`
[INFO] [stdout]  --> src/fallback.rs:6:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]   |                               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(fuzzing)");` 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: `span_locations`
[INFO] [stdout]  --> src/fallback.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[cfg(span_locations)]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:145:7
[INFO] [stdout]     |
[INFO] [stdout] 145 | #[cfg(span_locations)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:162:11
[INFO] [stdout]     |
[INFO] [stdout] 162 | #[cfg(not(span_locations))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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 value: `proc-macro`
[INFO] [stdout]    --> src/fallback.rs:220:7
[INFO] [stdout]     |
[INFO] [stdout] 220 | #[cfg(feature = "proc-macro")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `proc-macro` as a feature in `Cargo.toml`
[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 value: `proc-macro`
[INFO] [stdout]    --> src/fallback.rs:230:7
[INFO] [stdout]     |
[INFO] [stdout] 230 | #[cfg(feature = "proc-macro")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `proc-macro` as a feature in `Cargo.toml`
[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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:322:11
[INFO] [stdout]     |
[INFO] [stdout] 322 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `fuzzing`
[INFO] [stdout]    --> src/fallback.rs:322:31
[INFO] [stdout]     |
[INFO] [stdout] 322 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(fuzzing)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:335:11
[INFO] [stdout]     |
[INFO] [stdout] 335 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `fuzzing`
[INFO] [stdout]    --> src/fallback.rs:335:31
[INFO] [stdout]     |
[INFO] [stdout] 335 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(fuzzing)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:342:11
[INFO] [stdout]     |
[INFO] [stdout] 342 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `fuzzing`
[INFO] [stdout]    --> src/fallback.rs:342:31
[INFO] [stdout]     |
[INFO] [stdout] 342 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(fuzzing)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:375:11
[INFO] [stdout]     |
[INFO] [stdout] 375 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `fuzzing`
[INFO] [stdout]    --> src/fallback.rs:375:31
[INFO] [stdout]     |
[INFO] [stdout] 375 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(fuzzing)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:390:11
[INFO] [stdout]     |
[INFO] [stdout] 390 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `fuzzing`
[INFO] [stdout]    --> src/fallback.rs:390:31
[INFO] [stdout]     |
[INFO] [stdout] 390 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(fuzzing)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:395:11
[INFO] [stdout]     |
[INFO] [stdout] 395 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `fuzzing`
[INFO] [stdout]    --> src/fallback.rs:395:31
[INFO] [stdout]     |
[INFO] [stdout] 395 | #[cfg(all(span_locations, not(fuzzing)))]
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(fuzzing)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:449:11
[INFO] [stdout]     |
[INFO] [stdout] 449 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:451:11
[INFO] [stdout]     |
[INFO] [stdout] 451 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/fallback.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 |     #[cfg(wrap_proc_macro)]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/fallback.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 |     #[cfg(wrap_proc_macro)]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/fallback.rs:74:19
[INFO] [stdout]    |
[INFO] [stdout] 74 |             #[cfg(wrap_proc_macro)]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/fallback.rs:76:23
[INFO] [stdout]    |
[INFO] [stdout] 76 |             #[cfg(not(wrap_proc_macro))]
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/fallback.rs:107:19
[INFO] [stdout]     |
[INFO] [stdout] 107 |             #[cfg(wrap_proc_macro)]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:456:15
[INFO] [stdout]     |
[INFO] [stdout] 456 |     #[cfg(not(span_locations))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:461:11
[INFO] [stdout]     |
[INFO] [stdout] 461 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/fallback.rs:470:11
[INFO] [stdout]     |
[INFO] [stdout] 470 |     #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/fallback.rs:486:11
[INFO] [stdout]     |
[INFO] [stdout] 486 |     #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:501:11
[INFO] [stdout]     |
[INFO] [stdout] 501 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:514:11
[INFO] [stdout]     |
[INFO] [stdout] 514 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:527:15
[INFO] [stdout]     |
[INFO] [stdout] 527 |     #[cfg(not(span_locations))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:532:11
[INFO] [stdout]     |
[INFO] [stdout] 532 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:554:15
[INFO] [stdout]     |
[INFO] [stdout] 554 |     #[cfg(not(span_locations))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:559:11
[INFO] [stdout]     |
[INFO] [stdout] 559 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:574:15
[INFO] [stdout]     |
[INFO] [stdout] 574 |     #[cfg(not(span_locations))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:579:11
[INFO] [stdout]     |
[INFO] [stdout] 579 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:587:15
[INFO] [stdout]     |
[INFO] [stdout] 587 |     #[cfg(not(span_locations))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:592:11
[INFO] [stdout]     |
[INFO] [stdout] 592 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:600:11
[INFO] [stdout]     |
[INFO] [stdout] 600 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:608:15
[INFO] [stdout]     |
[INFO] [stdout] 608 |         #[cfg(span_locations)]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:611:19
[INFO] [stdout]     |
[INFO] [stdout] 611 |         #[cfg(not(span_locations))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:617:11
[INFO] [stdout]     |
[INFO] [stdout] 617 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:624:13
[INFO] [stdout]     |
[INFO] [stdout] 624 |     if cfg!(span_locations) {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:819:15
[INFO] [stdout]     |
[INFO] [stdout] 819 |     #[cfg(not(span_locations))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:830:11
[INFO] [stdout]     |
[INFO] [stdout] 830 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/fallback.rs:998:19
[INFO] [stdout]     |
[INFO] [stdout] 998 |         #[cfg(not(span_locations))]
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]     --> src/fallback.rs:1004:15
[INFO] [stdout]      |
[INFO] [stdout] 1004 |         #[cfg(span_locations)]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]     --> src/fallback.rs:1044:15
[INFO] [stdout]      |
[INFO] [stdout] 1044 |         #[cfg(span_locations)]
[INFO] [stdout]      |               ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]     --> src/fallback.rs:1061:27
[INFO] [stdout]      |
[INFO] [stdout] 1061 |                     #[cfg(span_locations)]
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]     --> src/fallback.rs:1063:27
[INFO] [stdout]      |
[INFO] [stdout] 1063 |                     #[cfg(span_locations)]
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/extra.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 |     #[cfg(wrap_proc_macro)]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/extra.rs:33:15
[INFO] [stdout]    |
[INFO] [stdout] 33 |         #[cfg(wrap_proc_macro)]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/extra.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 |         #[cfg(not(wrap_proc_macro))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/extra.rs:55:19
[INFO] [stdout]    |
[INFO] [stdout] 55 |             #[cfg(wrap_proc_macro)]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/extra.rs:64:19
[INFO] [stdout]    |
[INFO] [stdout] 64 |             #[cfg(wrap_proc_macro)]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]   --> src/extra.rs:73:19
[INFO] [stdout]    |
[INFO] [stdout] 73 |             #[cfg(wrap_proc_macro)]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/lib.rs:412:11
[INFO] [stdout]     |
[INFO] [stdout] 412 |     #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:440:11
[INFO] [stdout]     |
[INFO] [stdout] 440 |     #[cfg(wrap_proc_macro)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:446:11
[INFO] [stdout]     |
[INFO] [stdout] 446 |     #[cfg(wrap_proc_macro)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/lib.rs:455:15
[INFO] [stdout]     |
[INFO] [stdout] 455 |     #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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: `wrap_proc_macro`
[INFO] [stdout]    --> src/lib.rs:455:49
[INFO] [stdout]     |
[INFO] [stdout] 455 |     #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^ help: there is a config with a similar name: `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(wrap_proc_macro)");` 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: `super_unstable`
[INFO] [stdout]    --> src/lib.rs:455:67
[INFO] [stdout]     |
[INFO] [stdout] 455 |     #[cfg(all(procmacro2_semver_exempt, any(not(wrap_proc_macro), super_unstable)))]
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(super_unstable)");` 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: `span_locations`
[INFO] [stdout]    --> src/lib.rs:470:11
[INFO] [stdout]     |
[INFO] [stdout] 470 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `span_locations`
[INFO] [stdout]    --> src/lib.rs:485:11
[INFO] [stdout]     |
[INFO] [stdout] 485 |     #[cfg(span_locations)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(span_locations)");` 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: `procmacro2_semver_exempt`
[INFO] [stdout]    --> src/lib.rs:507:11
[INFO] [stdout]     |
[INFO] [stdout] 507 |     #[cfg(procmacro2_semver_exempt)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)");` 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] warning: field `0` is never read
[INFO] [stdout]   --> src/marker.rs:15:39
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(Rc<()>);
[INFO] [stdout]    |                   ------------------- ^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ProcMacroAutoTraits(());
[INFO] [stdout]    |                                       ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 110 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2-fallback` (lib) due to 111 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a137a3f7b49c7abd338700bb16c009ba4041687d2ac74a4fd422817f70e515e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a137a3f7b49c7abd338700bb16c009ba4041687d2ac74a4fd422817f70e515e1", kill_on_drop: false }`
[INFO] [stdout] a137a3f7b49c7abd338700bb16c009ba4041687d2ac74a4fd422817f70e515e1
