[INFO] fetching crate musli-json 0.0.117...
[INFO] testing musli-json-0.0.117 against 1.91.0 for beta-1.92-2
[INFO] extracting crate musli-json 0.0.117 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate musli-json 0.0.117
[INFO] finished tweaking crates.io crate musli-json 0.0.117
[INFO] tweaked toml for crates.io crate musli-json 0.0.117 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate musli-json 0.0.117 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding lexical v6.1.1 (available: v7.0.5)
[INFO] [stderr]       Adding musli v0.0.117 (available: v0.0.149)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded musli-utils v0.0.117
[INFO] [stderr]   Downloaded musli-allocator v0.0.117
[INFO] [stderr]   Downloaded musli-macros v0.0.117
[INFO] [stderr]   Downloaded musli v0.0.117
[INFO] [stderr]   Downloaded musli-storage v0.0.117
[INFO] [stderr]   Downloaded musli-value v0.0.117
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46cbb27130c0441278917ffb851e7082e7cf15a32b0eb2b50b46be4be43ab4ca
[INFO] running `Command { std: "docker" "start" "-a" "46cbb27130c0441278917ffb851e7082e7cf15a32b0eb2b50b46be4be43ab4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46cbb27130c0441278917ffb851e7082e7cf15a32b0eb2b50b46be4be43ab4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46cbb27130c0441278917ffb851e7082e7cf15a32b0eb2b50b46be4be43ab4ca", kill_on_drop: false }`
[INFO] [stdout] 46cbb27130c0441278917ffb851e7082e7cf15a32b0eb2b50b46be4be43ab4ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 316364bd59c1950c86b4cba42b8a7a8376cca70e4c9062ae3fdf3a2f0bd99366
[INFO] running `Command { std: "docker" "start" "-a" "316364bd59c1950c86b4cba42b8a7a8376cca70e4c9062ae3fdf3a2f0bd99366", kill_on_drop: false }`
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling lexical-util v0.8.5
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling lexical-parse-integer v0.8.6
[INFO] [stderr]    Compiling lexical-write-integer v0.8.5
[INFO] [stderr]    Compiling lexical-parse-float v0.8.5
[INFO] [stderr]    Compiling lexical-write-float v0.8.5
[INFO] [stderr]    Compiling lexical-core v0.8.5
[INFO] [stderr]    Compiling lexical v6.1.1
[INFO] [stderr]    Compiling musli-macros v0.0.117
[INFO] [stderr]    Compiling musli v0.0.117
[INFO] [stderr]    Compiling musli-allocator v0.0.117
[INFO] [stderr]    Compiling musli-utils v0.0.117
[INFO] [stderr]    Compiling musli-storage v0.0.117
[INFO] [stderr]    Compiling musli-value v0.0.117
[INFO] [stderr]    Compiling musli-json v0.0.117 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 | #![cfg_attr(doc_cfg, feature(doc_cfg))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(doc_cfg)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(doc_cfg)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | #[cfg_attr(doc_cfg, doc(cfg(feature = "alloc")))]
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(doc_cfg)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.33s
[INFO] running `Command { std: "docker" "inspect" "316364bd59c1950c86b4cba42b8a7a8376cca70e4c9062ae3fdf3a2f0bd99366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "316364bd59c1950c86b4cba42b8a7a8376cca70e4c9062ae3fdf3a2f0bd99366", kill_on_drop: false }`
[INFO] [stdout] 316364bd59c1950c86b4cba42b8a7a8376cca70e4c9062ae3fdf3a2f0bd99366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd1525c54dfcdd3f2511df383afcc7589e376b8f3c7137b940584b7aeeb2c344
[INFO] running `Command { std: "docker" "start" "-a" "cd1525c54dfcdd3f2511df383afcc7589e376b8f3c7137b940584b7aeeb2c344", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 | #![cfg_attr(doc_cfg, feature(doc_cfg))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(doc_cfg)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(doc_cfg)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | #[cfg_attr(doc_cfg, doc(cfg(feature = "alloc")))]
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(doc_cfg)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling musli-json v0.0.117 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 | #![cfg_attr(doc_cfg, feature(doc_cfg))]
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(doc_cfg)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(doc_cfg)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout]   --> src/lib.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | #[cfg_attr(doc_cfg, doc(cfg(feature = "alloc")))]
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(doc_cfg)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "cd1525c54dfcdd3f2511df383afcc7589e376b8f3c7137b940584b7aeeb2c344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd1525c54dfcdd3f2511df383afcc7589e376b8f3c7137b940584b7aeeb2c344", kill_on_drop: false }`
[INFO] [stdout] cd1525c54dfcdd3f2511df383afcc7589e376b8f3c7137b940584b7aeeb2c344
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7d3bae5dea20b1c85a75daa662121011ddee55999d1a3f0cffa7976d23058301
[INFO] running `Command { std: "docker" "start" "-a" "7d3bae5dea20b1c85a75daa662121011ddee55999d1a3f0cffa7976d23058301", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stdout] 
[INFO] [stderr]   --> src/lib.rs:46:13
[INFO] [stdout] running 3 tests
[INFO] [stderr]    |
[INFO] [stdout] test parser::tests::test_decode_unsigned ... ok
[INFO] [stderr] 46 | #![cfg_attr(doc_cfg, feature(doc_cfg))]
[INFO] [stdout] test parser::tests::test_decode_exponent ... ok
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 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(doc_cfg)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` 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: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `doc_cfg`
[INFO] [stderr]   --> src/lib.rs:71:12
[INFO] [stderr]    |
[INFO] [stderr] 71 | #[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
[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(doc_cfg)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` 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: `doc_cfg`
[INFO] [stderr]   --> src/lib.rs:77:12
[INFO] [stderr]    |
[INFO] [stderr] 77 | #[cfg_attr(doc_cfg, doc(cfg(feature = "alloc")))]
[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(doc_cfg)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` 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: `musli-json` (lib) generated 3 warnings
[INFO] [stderr] warning: `musli-json` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/musli_json-cd5bee2d24c682e1)
[INFO] [stdout] test parser::tests::test_decode_signed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_bug_28_29.rs (/opt/rustwide/target/debug/deps/test_bug_28_29-3abb529792907828)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test bug_28_skip_any ... ok
[INFO] [stdout] test bug_29_whitespace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_simple_json_encoding.rs (/opt/rustwide/target/debug/deps/test_simple_json_encoding-fe42fc3caa2dcfb5)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_simple_json_encoding ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/trace_collection.rs (/opt/rustwide/target/debug/deps/trace_collection-c89d47405fc16a31)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test trace_collection ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/trace_complex.rs (/opt/rustwide/target/debug/deps/trace_complex-1e6a4dcb6cbad631)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/trace_no_std.rs (/opt/rustwide/target/debug/deps/trace_no_std-151f8e1fb146c4be)
[INFO] [stdout] test trace_complex ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test trace_no_std ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests musli_json
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/encoding.rs - encoding::Encoding<M>::with_mode (line 165) ... ok
[INFO] [stdout] test src/encoding.rs - encoding::Encoding<Text>::new (line 122) ... ok
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.90s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7d3bae5dea20b1c85a75daa662121011ddee55999d1a3f0cffa7976d23058301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d3bae5dea20b1c85a75daa662121011ddee55999d1a3f0cffa7976d23058301", kill_on_drop: false }`
[INFO] [stdout] 7d3bae5dea20b1c85a75daa662121011ddee55999d1a3f0cffa7976d23058301
