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# rustc version rustc 1.89.0-nightly (f3db63916 2025-06-17)
# docs.rs version docsrs 0.6.0 (0a8149e8 2025-06-15)
# build log [INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/fuzzcheck_json_string_generator-0.1.0/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/fuzzcheck_json_string_generator-0.1.0/source:/opt/rustwide/workdir:ro,Z" "-v" "/home/cratesfyi/workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/home/cratesfyi/workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "6442450944" "--cpus" "6" "--user" "1001:1001" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20250617-1.89.0-nightly-f3db63916\", \"--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: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b558b2a5c3d091e4aa8b19d224445e2a2d13b3e6a3f6c55a509f5212b65f48cc [INFO] running `Command { std: "docker" "start" "-a" "b558b2a5c3d091e4aa8b19d224445e2a2d13b3e6a3f6c55a509f5212b65f48cc", kill_on_drop: false }` [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Checking fuzzcheck_common v0.12.0 [INFO] [stderr] error[E0557]: feature has been removed [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/lib.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(no_coverage)] [INFO] [stderr] | ^^^^^^^^^^^ feature has been removed [INFO] [stderr] | [INFO] [stderr] = note: removed in 1.74.0 (you are using 1.89.0-nightly (f3db63916 2025-06-17)); see <https://github.com/rust-lang/rust/pull/114656> for more information [INFO] [stderr] = note: renamed to `coverage_attribute` [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:193:13 [INFO] [stderr] | [INFO] [stderr] 193 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:211:17 [INFO] [stderr] | [INFO] [stderr] 211 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:215:17 [INFO] [stderr] | [INFO] [stderr] 215 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:222:13 [INFO] [stderr] | [INFO] [stderr] 222 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:233:13 [INFO] [stderr] | [INFO] [stderr] 233 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:244:13 [INFO] [stderr] | [INFO] [stderr] 244 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:255:13 [INFO] [stderr] | [INFO] [stderr] 255 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:266:13 [INFO] [stderr] | [INFO] [stderr] 266 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:276:21 [INFO] [stderr] | [INFO] [stderr] 276 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:288:21 [INFO] [stderr] | [INFO] [stderr] 288 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:305:21 [INFO] [stderr] | [INFO] [stderr] 305 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: attributes on expressions are experimental [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:314:17 [INFO] [stderr] | [INFO] [stderr] 314 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information [INFO] [stderr] = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2025-06-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:35:7 [INFO] [stderr] | [INFO] [stderr] 35 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:87:3 [INFO] [stderr] | [INFO] [stderr] 87 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:180:7 [INFO] [stderr] | [INFO] [stderr] 180 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:193:15 [INFO] [stderr] | [INFO] [stderr] 193 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:211:19 [INFO] [stderr] | [INFO] [stderr] 211 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:215:19 [INFO] [stderr] | [INFO] [stderr] 215 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:222:15 [INFO] [stderr] | [INFO] [stderr] 222 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:233:15 [INFO] [stderr] | [INFO] [stderr] 233 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:244:15 [INFO] [stderr] | [INFO] [stderr] 244 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:255:15 [INFO] [stderr] | [INFO] [stderr] 255 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:266:15 [INFO] [stderr] | [INFO] [stderr] 266 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:276:23 [INFO] [stderr] | [INFO] [stderr] 276 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:288:23 [INFO] [stderr] | [INFO] [stderr] 288 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:305:23 [INFO] [stderr] | [INFO] [stderr] 305 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:314:19 [INFO] [stderr] | [INFO] [stderr] 314 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:344:3 [INFO] [stderr] | [INFO] [stderr] 344 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:411:7 [INFO] [stderr] | [INFO] [stderr] 411 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:417:7 [INFO] [stderr] | [INFO] [stderr] 417 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] error: cannot find attribute `no_coverage` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_common-0.12.0/src/arg.rs:450:7 [INFO] [stderr] | [INFO] [stderr] 450 | #[no_coverage] [INFO] [stderr] | ^^^^^^^^^^^ help: a built-in attribute with a similar name exists: `coverage` [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0557, E0658. [INFO] [stderr] For more information about an error, try `rustc --explain E0557`. [INFO] [stderr] error: could not compile `fuzzcheck_common` (lib) due to 32 previous errors [INFO] running `Command { std: "docker" "inspect" "b558b2a5c3d091e4aa8b19d224445e2a2d13b3e6a3f6c55a509f5212b65f48cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b558b2a5c3d091e4aa8b19d224445e2a2d13b3e6a3f6c55a509f5212b65f48cc", kill_on_drop: false }` [INFO] [stdout] b558b2a5c3d091e4aa8b19d224445e2a2d13b3e6a3f6c55a509f5212b65f48cc