[INFO] cloning repository https://github.com/fanatid/rust-bitcoin-blocks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fanatid/rust-bitcoin-blocks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffanatid%2Frust-bitcoin-blocks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffanatid%2Frust-bitcoin-blocks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 166d3cf91f391927294d671cbc625e6b047b7c5d
[INFO] documenting fanatid/rust-bitcoin-blocks against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffanatid%2Frust-bitcoin-blocks" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fanatid/rust-bitcoin-blocks on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fanatid/rust-bitcoin-blocks
[INFO] finished tweaking git repo https://github.com/fanatid/rust-bitcoin-blocks
[INFO] tweaked toml for git repo https://github.com/fanatid/rust-bitcoin-blocks written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/fanatid/rust-bitcoin-blocks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ee411496cc9cc5ca311958c17a4e5f084f4a5c013ce0b64d3ae635eb2816f6b
[INFO] running `Command { std: "docker" "start" "-a" "6ee411496cc9cc5ca311958c17a4e5f084f4a5c013ce0b64d3ae635eb2816f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ee411496cc9cc5ca311958c17a4e5f084f4a5c013ce0b64d3ae635eb2816f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ee411496cc9cc5ca311958c17a4e5f084f4a5c013ce0b64d3ae635eb2816f6b", kill_on_drop: false }`
[INFO] [stdout] 6ee411496cc9cc5ca311958c17a4e5f084f4a5c013ce0b64d3ae635eb2816f6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 038c92a04e48fd8d90f87bb31af57227cb9d6eed953518c0d1fcadc64a86530a
[INFO] running `Command { std: "docker" "start" "-a" "038c92a04e48fd8d90f87bb31af57227cb9d6eed953518c0d1fcadc64a86530a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking fixed-hash v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking serde_json v1.0.50
[INFO] [stderr]  Documenting rust-bitcoin-blocks 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(exclusive_range_pattern)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `rust-bitcoin-blocks`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name rust_bitcoin_blocks src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=6c26f4344e3fad69 -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-05c7b28458af6681.rmeta --extern fixed_hash=/opt/rustwide/target/debug/deps/libfixed_hash-11fb09f82b801dc8.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-35f14f0f67b04f02.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e26bc71e23d7659f.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-c5491bb987823ca4.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "038c92a04e48fd8d90f87bb31af57227cb9d6eed953518c0d1fcadc64a86530a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "038c92a04e48fd8d90f87bb31af57227cb9d6eed953518c0d1fcadc64a86530a", kill_on_drop: false }`
[INFO] [stdout] 038c92a04e48fd8d90f87bb31af57227cb9d6eed953518c0d1fcadc64a86530a