[INFO] fetching crate libbitcoin 0.3.0...
[INFO] documenting libbitcoin-0.3.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate libbitcoin 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate libbitcoin 0.3.0 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] started tweaking crates.io crate libbitcoin 0.3.0
[INFO] finished tweaking crates.io crate libbitcoin 0.3.0
[INFO] tweaked toml for crates.io crate libbitcoin 0.3.0 written to /workspace/builds/worker-0-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 unicode-normalization v0.1.9
[INFO] [stderr]   Downloaded amplify_derive v2.11.3
[INFO] [stderr]   Downloaded amplify_syn v1.1.6
[INFO] [stderr]   Downloaded amplify_num v0.4.1
[INFO] [stderr]   Downloaded bitcoin_hashes v0.10.0
[INFO] [stderr]   Downloaded secp256k1 v0.22.2
[INFO] [stderr]   Downloaded bip39 v1.2.0
[INFO] [stderr]   Downloaded amplify v3.14.2
[INFO] [stderr]   Downloaded bitcoin v0.28.2
[INFO] [stderr]   Downloaded secp256k1-sys v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ce798200dbb0817c2a2afc40d085ff0a724f89d5b8b72139b46ba0b7e1e056d4
[INFO] running `Command { std: "docker" "start" "-a" "ce798200dbb0817c2a2afc40d085ff0a724f89d5b8b72139b46ba0b7e1e056d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce798200dbb0817c2a2afc40d085ff0a724f89d5b8b72139b46ba0b7e1e056d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce798200dbb0817c2a2afc40d085ff0a724f89d5b8b72139b46ba0b7e1e056d4", kill_on_drop: false }`
[INFO] [stdout] ce798200dbb0817c2a2afc40d085ff0a724f89d5b8b72139b46ba0b7e1e056d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b56aa39e1165bab6f1597d29c9483d63d6245fbf79e7d9ce1ed7cc427750938a
[INFO] running `Command { std: "docker" "start" "-a" "b56aa39e1165bab6f1597d29c9483d63d6245fbf79e7d9ce1ed7cc427750938a", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling secp256k1-sys v0.5.2
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking bitcoin_hashes v0.10.0
[INFO] [stderr]     Checking amplify_num v0.4.1
[INFO] [stderr]     Checking bitcoin_hashes v0.11.0
[INFO] [stderr]     Checking bech32 v0.8.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking unicode-normalization v0.1.9
[INFO] [stderr]     Checking bip39 v1.2.0
[INFO] [stderr]     Checking secp256k1 v0.22.2
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling amplify_syn v1.1.6
[INFO] [stderr]     Checking bitcoin v0.28.2
[INFO] [stderr]    Compiling amplify_derive v2.11.3
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking amplify v3.14.2
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]  Documenting libbitcoin v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(try_trait_v2)]
[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 `libbitcoin`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name libbitcoin src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7ec2fc8fa092b2ea -L dependency=/opt/rustwide/target/debug/deps --extern amplify=/opt/rustwide/target/debug/deps/libamplify-3252dc65220a513d.rmeta --extern amplify_derive=/opt/rustwide/target/debug/deps/libamplify_derive-38e5d80809e86dc9.so --extern bip39=/opt/rustwide/target/debug/deps/libbip39-98eb87283b5665b8.rmeta --extern bitcoin=/opt/rustwide/target/debug/deps/libbitcoin-d72c716c5fff7b1c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-9c7d51f549cf58b7.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-4467f3ffc13087c9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-eeffde7c4f935a5e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-7f5aa0c9c57e86c5.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-9f766820a7671020.rmeta --extern serde_with=/opt/rustwide/target/debug/deps/libserde_with-c4ffbe7ae9e9b099.rmeta --extern serde_with_macros=/opt/rustwide/target/debug/deps/libserde_with_macros-8e5857c1bf639d0b.so --cap-lints=warn --crate-version 0.3.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "b56aa39e1165bab6f1597d29c9483d63d6245fbf79e7d9ce1ed7cc427750938a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b56aa39e1165bab6f1597d29c9483d63d6245fbf79e7d9ce1ed7cc427750938a", kill_on_drop: false }`
[INFO] [stdout] b56aa39e1165bab6f1597d29c9483d63d6245fbf79e7d9ce1ed7cc427750938a
