[INFO] fetching crate cosmian_findex 2.0.2...
[INFO] documenting cosmian_findex-2.0.2 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate cosmian_findex 2.0.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cosmian_findex 2.0.2 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate cosmian_findex 2.0.2
[INFO] finished tweaking crates.io crate cosmian_findex 2.0.2
[INFO] tweaked toml for crates.io crate cosmian_findex 2.0.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ghash v0.5.0
[INFO] [stderr]   Downloaded cosmian_crypto_core v6.0.0
[INFO] [stderr]   Downloaded pyo3-macros v0.17.3
[INFO] [stderr]   Downloaded pyo3-ffi v0.17.3
[INFO] [stderr]   Downloaded polyval v0.6.0
[INFO] [stderr]   Downloaded curve25519-dalek v3.2.0
[INFO] [stderr]   Downloaded aead v0.5.2
[INFO] [stderr]   Downloaded python3-dll-a v0.2.6
[INFO] [stderr]   Downloaded faker_rand v0.1.1
[INFO] [stderr]   Downloaded pyo3-build-config v0.17.3
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.17.3
[INFO] [stderr]   Downloaded universal-hash v0.5.0
[INFO] [stderr]   Downloaded deunicode v1.3.3
[INFO] [stderr]   Downloaded ctr v0.9.2
[INFO] [stderr]   Downloaded aes-gcm v0.10.1
[INFO] [stderr]   Downloaded pyo3 v0.17.3
[INFO] [stderr]   Downloaded sha3 v0.10.7
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3697ad858f78b024327f0b8f887694a07aa22a6574a09f068d2a485dc2eece70
[INFO] running `Command { std: "docker" "start" "-a" "3697ad858f78b024327f0b8f887694a07aa22a6574a09f068d2a485dc2eece70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3697ad858f78b024327f0b8f887694a07aa22a6574a09f068d2a485dc2eece70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3697ad858f78b024327f0b8f887694a07aa22a6574a09f068d2a485dc2eece70", kill_on_drop: false }`
[INFO] [stdout] 3697ad858f78b024327f0b8f887694a07aa22a6574a09f068d2a485dc2eece70
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0979bdb4070270fce490850f26fb18b4c4c1bf5109b166396498d90f8c66f67e
[INFO] running `Command { std: "docker" "start" "-a" "0979bdb4070270fce490850f26fb18b4c4c1bf5109b166396498d90f8c66f67e", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking keccak v0.1.3
[INFO] [stderr]     Checking zeroize v1.6.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]    Compiling async-recursion v1.0.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking curve25519-dalek v3.2.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking universal-hash v0.5.0
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking polyval v0.6.0
[INFO] [stderr]     Checking aes v0.8.2
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking sha3 v0.10.7
[INFO] [stderr]     Checking ghash v0.5.0
[INFO] [stderr]     Checking aes-gcm v0.10.1
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]     Checking cosmian_crypto_core v6.0.0
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]  Documenting cosmian_findex v2.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(async_fn_in_trait)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `cosmian_findex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type cdylib --crate-type rlib --crate-type staticlib --crate-name cosmian_findex src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d038e79389b6eb7c -L dependency=/opt/rustwide/target/debug/deps --extern async_recursion=/opt/rustwide/target/debug/deps/libasync_recursion-99e4a56ad158154c.so --extern base64=/opt/rustwide/target/debug/deps/libbase64-c957872d89323658.rmeta --extern cosmian_crypto_core=/opt/rustwide/target/debug/deps/libcosmian_crypto_core-4ed8456a2b0057fb.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-d64858a226a89ddc.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-7658a505e7fe0549.rmeta --extern leb128=/opt/rustwide/target/debug/deps/libleb128-3a77bb9172234744.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-a85340046a3cbce6.rmeta --extern sha3=/opt/rustwide/target/debug/deps/libsha3-cc38ec5edb5dba11.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-47f87b7bc908169e.rmeta --extern tiny_keccak=/opt/rustwide/target/debug/deps/libtiny_keccak-bcb3cfc488f01d24.rmeta --extern zeroize=/opt/rustwide/target/debug/deps/libzeroize-4bfca52c7663a98e.rmeta --cap-lints=warn --crate-version 2.0.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0979bdb4070270fce490850f26fb18b4c4c1bf5109b166396498d90f8c66f67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0979bdb4070270fce490850f26fb18b4c4c1bf5109b166396498d90f8c66f67e", kill_on_drop: false }`
[INFO] [stdout] 0979bdb4070270fce490850f26fb18b4c4c1bf5109b166396498d90f8c66f67e
