[INFO] fetching crate ledger-lib 0.1.0...
[INFO] documenting ledger-lib-0.1.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate ledger-lib 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate ledger-lib 0.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ledger-lib 0.1.0
[INFO] finished tweaking crates.io crate ledger-lib 0.1.0
[INFO] tweaked toml for crates.io crate ledger-lib 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ledger-proto v0.1.0
[INFO] [stderr]   Downloaded encdec-macros v0.9.0
[INFO] [stderr]   Downloaded encdec-base v0.8.3
[INFO] [stderr]   Downloaded encdec-base v0.9.0
[INFO] [stderr]   Downloaded encdec v0.9.0
[INFO] [stderr]   Downloaded jni-utils v0.1.1
[INFO] [stderr]   Downloaded hidapi v2.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9696ffcdcbadc756290b5199717ff537ce215efa2c6194dca28d04b56ca1d35a
[INFO] running `Command { std: "docker" "start" "-a" "9696ffcdcbadc756290b5199717ff537ce215efa2c6194dca28d04b56ca1d35a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9696ffcdcbadc756290b5199717ff537ce215efa2c6194dca28d04b56ca1d35a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9696ffcdcbadc756290b5199717ff537ce215efa2c6194dca28d04b56ca1d35a", kill_on_drop: false }`
[INFO] [stdout] 9696ffcdcbadc756290b5199717ff537ce215efa2c6194dca28d04b56ca1d35a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 031cd8b1b63357db23b0f3d029f20ad17cd1154c096e204ac519973491b5319b
[INFO] running `Command { std: "docker" "start" "-a" "031cd8b1b63357db23b0f3d029f20ad17cd1154c096e204ac519973491b5319b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling libdbus-sys v0.2.5
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling encdec-base v0.8.3
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking xml-rs v0.8.19
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking uuid v1.7.0
[INFO] [stderr]    Compiling hidapi v2.6.0
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling encdec-macros v0.9.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling displaydoc v0.2.4
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking encdec-base v0.9.0
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking encdec v0.9.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking ledger-proto v0.1.0
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]     Checking dbus v0.9.7
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serde-xml-rs v0.6.0
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking bluez-generated v0.3.0
[INFO] [stderr]     Checking dbus-tokio v0.7.6
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking bluez-async v0.7.2
[INFO] [stderr]     Checking btleplug v0.10.5
[INFO] [stderr]  Documenting ledger-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | #![feature(negative_impls)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ledger-lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name ledger_lib src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="btleplug"' --cfg 'feature="default"' --cfg 'feature="hidapi"' --cfg 'feature="transport_ble"' --cfg 'feature="transport_tcp"' --cfg 'feature="transport_usb"' --cfg 'feature="transport_usb_libusb"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e337728239a7fee9 -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-801d17b80494f302.so --extern btleplug=/opt/rustwide/target/debug/deps/libbtleplug-cdfca78a840ac331.rmeta --extern encdec=/opt/rustwide/target/debug/deps/libencdec-ccdb248414ae78c5.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-ad5d8e1d34ac6668.rmeta --extern hidapi=/opt/rustwide/target/debug/deps/libhidapi-7c9067debcd33a8c.rmeta --extern ledger_proto=/opt/rustwide/target/debug/deps/libledger_proto-73ec2a4da2093a4d.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-9989da3b216143b9.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-04afa8a1a8f66a22.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-7e72e4ae40eb5f84.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-1c0a1ff8543ddfd2.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-e454a4ce387507e9.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-6a31010bbee147d1.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-59be6bf6e1021ef4.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "031cd8b1b63357db23b0f3d029f20ad17cd1154c096e204ac519973491b5319b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "031cd8b1b63357db23b0f3d029f20ad17cd1154c096e204ac519973491b5319b", kill_on_drop: false }`
[INFO] [stdout] 031cd8b1b63357db23b0f3d029f20ad17cd1154c096e204ac519973491b5319b
