# rustc version rustc 1.98.0-nightly (d1fc603d1 2026-05-26)
# docs.rs version docsrs 0.0.0 (f16e33f3e6ac9fc9e4413728c5dd1b2ba1c6b799 2026-05-23 )
# build log [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-w" "/opt/rustwide/workdir" "--user" "1001:1001" "d6fa04ad46cbc6ec5b786854c25a68dcdd185b398b2f3d2ad2d0b87631e2d9b6" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "serde" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260526-1.98.0-nightly-d1fc603d1\", \"--static-root-path\", \"/-/rustdoc.static/\", \"--cap-lints\", \"warn\", \"--extern-html-root-takes-precedence\"]" "--offline" "-Zunstable-options" "--config=doc.extern-map.registries.crates-io=\"https://docs.rs/{pkg_name}/{version}/x86_64-unknown-linux-gnu\"" "-Zrustdoc-scrape-examples" "-j6" "--target" "x86_64-unknown-linux-gnu", kill_on_drop: false }` [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Documenting libeither v0.5.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: lint `illegal_floating_point_literal_pattern` has been removed: no longer a warning, float patterns behave the same as `==` [INFO] [stderr] --> src/lib.rs:101:9 [INFO] [stderr] | [INFO] [stderr] 101 | illegal_floating_point_literal_pattern, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(renamed_and_removed_lints)]` on by default [INFO] [stderr] [INFO] [stderr] warning: lint `indirect_structural_match` has been removed: converted into hard error, see RFC #3535 <https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information [INFO] [stderr] --> src/lib.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | indirect_structural_match, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: lint `nontrivial_structural_match` has been removed: no longer needed, see RFC #3535 <https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information [INFO] [stderr] --> src/lib.rs:136:9 [INFO] [stderr] | [INFO] [stderr] 136 | nontrivial_structural_match, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: lint `pointer_structural_match` has been removed: converted into hard error, see RFC #3535 <https://rust-lang.github.io/rfcs/3535-constants-in-patterns.html> for more information [INFO] [stderr] --> src/lib.rs:140:9 [INFO] [stderr] | [INFO] [stderr] 140 | pointer_structural_match, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: lint `private_in_public` has been removed: replaced with another group of lints, see RFC <https://rust-lang.github.io/rfcs/2145-type-privacy.html> for more information [INFO] [stderr] --> src/lib.rs:141:9 [INFO] [stderr] | [INFO] [stderr] 141 | private_in_public, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: lint `repr_transparent_external_private_fields` has been renamed to `repr_transparent_non_zst_fields` [INFO] [stderr] --> src/lib.rs:144:9 [INFO] [stderr] | [INFO] [stderr] 144 | repr_transparent_external_private_fields, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `repr_transparent_non_zst_fields` [INFO] [stderr] | [INFO] [stderr] note: the lint level is defined here [INFO] [stderr] --> src/lib.rs:143:9 [INFO] [stderr] | [INFO] [stderr] 143 | renamed_and_removed_lints, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: lint `suspicious_auto_trait_impls` has been removed: no longer needed, see issue #93367 <https://github.com/rust-lang/rust/issues/93367> for more information [INFO] [stderr] --> src/lib.rs:153:9 [INFO] [stderr] | [INFO] [stderr] 153 | suspicious_auto_trait_impls, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: lint `temporary_cstring_as_ptr` has been renamed to `dangling_pointers_from_temporaries` [INFO] [stderr] --> src/lib.rs:154:9 [INFO] [stderr] | [INFO] [stderr] 154 | temporary_cstring_as_ptr, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dangling_pointers_from_temporaries` [INFO] [stderr] [INFO] [stderr] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code` [INFO] [stderr] --> src/lib.rs:196:9 [INFO] [stderr] | [INFO] [stderr] 196 | unused_tuple_struct_fields, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code` [INFO] [stderr] [INFO] [stderr] warning: lint `where_clauses_object_safety` has been removed: converted into hard error, see PR #125380 <https://github.com/rust-lang/rust/pull/125380> for more information [INFO] [stderr] --> src/lib.rs:200:9 [INFO] [stderr] | [INFO] [stderr] 200 | where_clauses_object_safety, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `nightly_lints` [INFO] [stderr] --> src/lib.rs:63:17 [INFO] [stderr] | [INFO] [stderr] 63 | #![cfg_attr(all(nightly_lints, feature = "unstable"), feature(error_iter))] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: expected names are: `docsrs`, `feature`, and `test` and 32 more [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly_lints)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly_lints)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] note: the lint level is defined here [INFO] [stderr] --> src/lib.rs:162:9 [INFO] [stderr] | [INFO] [stderr] 162 | unexpected_cfgs, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `msrv` [INFO] [stderr] --> src/lib.rs:66:5 [INFO] [stderr] | [INFO] [stderr] 66 | msrv, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(msrv)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(msrv)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `msrv` [INFO] [stderr] --> src/lib.rs:207:9 [INFO] [stderr] | [INFO] [stderr] 207 | all(msrv, any(beta_lints, nightly_lints)), [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(msrv)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(msrv)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `beta_lints` [INFO] [stderr] --> src/lib.rs:207:19 [INFO] [stderr] | [INFO] [stderr] 207 | all(msrv, any(beta_lints, nightly_lints)), [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(beta_lints)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(beta_lints)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `nightly_lints` [INFO] [stderr] --> src/lib.rs:207:31 [INFO] [stderr] | [INFO] [stderr] 207 | all(msrv, any(beta_lints, nightly_lints)), [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly_lints)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly_lints)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `msrv` [INFO] [stderr] --> src/lib.rs:217:13 [INFO] [stderr] | [INFO] [stderr] 217 | #![cfg_attr(msrv, deny(clippy::all, clippy::pedantic))] [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(msrv)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(msrv)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `msrv` [INFO] [stderr] --> src/lib.rs:221:5 [INFO] [stderr] | [INFO] [stderr] 221 | msrv, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(msrv)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(msrv)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `msrv` [INFO] [stderr] --> src/lib.rs:234:9 [INFO] [stderr] | [INFO] [stderr] 234 | all(msrv, feature = "unstable", nightly_lints), [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(msrv)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(msrv)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `nightly_lints` [INFO] [stderr] --> src/lib.rs:234:37 [INFO] [stderr] | [INFO] [stderr] 234 | all(msrv, feature = "unstable", nightly_lints), [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly_lints)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly_lints)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `msrv` [INFO] [stderr] --> src/lib.rs:237:17 [INFO] [stderr] | [INFO] [stderr] 237 | #![cfg_attr(all(msrv, not(feature = "unstable")), deny(unstable_features))] [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(msrv)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(msrv)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `nightly_lints` [INFO] [stderr] --> src/error.rs:77:15 [INFO] [stderr] | [INFO] [stderr] 77 | #[cfg(all(nightly_lints, feature = "unstable"))] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly_lints)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly_lints)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `stable_lints` [INFO] [stderr] --> src/error.rs:87:15 [INFO] [stderr] | [INFO] [stderr] 87 | #[cfg(any(stable_lints, beta_lints))] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable_lints)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable_lints)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `beta_lints` [INFO] [stderr] --> src/error.rs:87:29 [INFO] [stderr] | [INFO] [stderr] 87 | #[cfg(any(stable_lints, beta_lints))] [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(beta_lints)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(beta_lints)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `nightly_lints` [INFO] [stderr] --> src/error.rs:92:15 [INFO] [stderr] | [INFO] [stderr] 92 | #[cfg(all(nightly_lints, not(feature = "unstable")))] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly_lints)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly_lints)");` to the top of the `build.rs` [INFO] [stderr] = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: `libeither` (lib doc) generated 24 warnings (run `cargo fix --lib -p libeither` to apply 3 suggestions) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s [INFO] [stderr] Generated /opt/rustwide/target/x86_64-unknown-linux-gnu/doc/libeither/index.html [INFO] running `Command { std: "docker" "inspect" "d6fa04ad46cbc6ec5b786854c25a68dcdd185b398b2f3d2ad2d0b87631e2d9b6", kill_on_drop: false }`