[INFO] cloning repository https://github.com/paulalesius/com.unnsvc.buttcoin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paulalesius/com.unnsvc.buttcoin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulalesius%2Fcom.unnsvc.buttcoin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulalesius%2Fcom.unnsvc.buttcoin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06d1cfffd26b1b8b672839e974b346960119779b
[INFO] documenting paulalesius/com.unnsvc.buttcoin against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulalesius%2Fcom.unnsvc.buttcoin" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paulalesius/com.unnsvc.buttcoin on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paulalesius/com.unnsvc.buttcoin
[INFO] finished tweaking git repo https://github.com/paulalesius/com.unnsvc.buttcoin
[INFO] tweaked toml for git repo https://github.com/paulalesius/com.unnsvc.buttcoin written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/paulalesius/com.unnsvc.buttcoin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: bin.0.src
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitcoin_hashes v0.10.0
[INFO] [stderr]   Downloaded dotenv_codegen v0.15.0
[INFO] [stderr]   Downloaded bitcoincore-rpc-json v0.13.0
[INFO] [stderr]   Downloaded dotenv_codegen_implementation v0.15.0
[INFO] [stderr]   Downloaded secp256k1-sys v0.4.1
[INFO] [stderr]   Downloaded bech32 v0.7.3
[INFO] [stderr]   Downloaded secp256k1 v0.20.3
[INFO] [stderr]   Downloaded xxhash-rust v0.8.2
[INFO] [stderr]   Downloaded bitcoincore-rpc v0.13.0
[INFO] [stderr]   Downloaded jsonrpc v0.11.0
[INFO] [stderr]   Downloaded base58check v0.1.0
[INFO] [stderr]   Downloaded bitcoin v0.26.2
[INFO] [stderr]   Downloaded bitcoin v0.27.0
[INFO] [stderr]   Downloaded bitcoinconsensus v0.19.0-3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f514cf2f574fd2b94b567985096c3fea39814afad8c25917ee9c7d8e33142ddd
[INFO] running `Command { std: "docker" "start" "-a" "f514cf2f574fd2b94b567985096c3fea39814afad8c25917ee9c7d8e33142ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f514cf2f574fd2b94b567985096c3fea39814afad8c25917ee9c7d8e33142ddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f514cf2f574fd2b94b567985096c3fea39814afad8c25917ee9c7d8e33142ddd", kill_on_drop: false }`
[INFO] [stdout] f514cf2f574fd2b94b567985096c3fea39814afad8c25917ee9c7d8e33142ddd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bc59cf57f7521a9545e823f87cab96fa0142180587df97f8afddf80510345b0
[INFO] running `Command { std: "docker" "start" "-a" "4bc59cf57f7521a9545e823f87cab96fa0142180587df97f8afddf80510345b0", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: bin.0.src
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking bech32 v0.7.3
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking bech32 v0.8.1
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking xxhash-rust v0.8.2
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling secp256k1-sys v0.4.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.22.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling bitcoinconsensus v0.19.0-3
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking ordered-float v2.5.1
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking base58check v0.1.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking ctrlc v3.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling dotenv_codegen_implementation v0.15.0
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking dotenv_codegen v0.15.0
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking diesel v1.4.7
[INFO] [stderr]     Checking secp256k1 v0.20.3
[INFO] [stderr]     Checking bitcoin_hashes v0.9.7
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking bitcoin_hashes v0.10.0
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking log4rs v1.0.0
[INFO] [stderr]     Checking jsonrpc v0.11.0
[INFO] [stderr]     Checking bitcoin v0.27.0
[INFO] [stderr]     Checking bitcoin v0.26.2
[INFO] [stderr]     Checking bitcoincore-rpc-json v0.13.0
[INFO] [stderr]     Checking bitcoincore-rpc v0.13.0
[INFO] [stderr]  Documenting buttcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(hash_set_entry)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `buttcoin`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name buttcoin src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern base58check=/opt/rustwide/target/debug/deps/libbase58check-9f697c3d058ac0a8.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-a4a7235aa05542cd.rmeta --extern bitcoin=/opt/rustwide/target/debug/deps/libbitcoin-06cffe09672456c3.rmeta --extern bitcoincore_rpc=/opt/rustwide/target/debug/deps/libbitcoincore_rpc-3daa78464a949f4d.rmeta --extern ctrlc=/opt/rustwide/target/debug/deps/libctrlc-4d85a8613556ccba.rmeta --extern diesel=/opt/rustwide/target/debug/deps/libdiesel-41a0c33f7c3e3db5.rmeta --extern dotenv=/opt/rustwide/target/debug/deps/libdotenv-9165642b04647e23.rmeta --extern dotenv_codegen=/opt/rustwide/target/debug/deps/libdotenv_codegen-a0b3a51822b024e3.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-baf05556bb3949e0.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-3303e62dbe377562.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-d680bcea35852929.rmeta --extern log4rs=/opt/rustwide/target/debug/deps/liblog4rs-a09055e16eea5a31.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-ba4cc8361ff5d23d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e3a2987a219072b5.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-f5d2a859aa65ca4c.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-45914bc55f83c974.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-c9d7c3ba53145746.rmeta --extern xxhash_rust=/opt/rustwide/target/debug/deps/libxxhash_rust-11e47adc8eb2fd31.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4bc59cf57f7521a9545e823f87cab96fa0142180587df97f8afddf80510345b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bc59cf57f7521a9545e823f87cab96fa0142180587df97f8afddf80510345b0", kill_on_drop: false }`
[INFO] [stdout] 4bc59cf57f7521a9545e823f87cab96fa0142180587df97f8afddf80510345b0
