[INFO] cloning repository https://github.com/zhuguoliang/rLSM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhuguoliang/rLSM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhuguoliang%2FrLSM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhuguoliang%2FrLSM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa2da0671634c95ff0d630d0b43147434ec7c062
[INFO] documenting zhuguoliang/rLSM 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%2Fzhuguoliang%2FrLSM" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zhuguoliang/rLSM 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/zhuguoliang/rLSM
[INFO] finished tweaking git repo https://github.com/zhuguoliang/rLSM
[INFO] tweaked toml for git repo https://github.com/zhuguoliang/rLSM written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/zhuguoliang/rLSM 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 24407686f7c9b02c88756300276075647662b0d2e1a5c52682b5fcbb84ff9b8c
[INFO] running `Command { std: "docker" "start" "-a" "24407686f7c9b02c88756300276075647662b0d2e1a5c52682b5fcbb84ff9b8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24407686f7c9b02c88756300276075647662b0d2e1a5c52682b5fcbb84ff9b8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24407686f7c9b02c88756300276075647662b0d2e1a5c52682b5fcbb84ff9b8c", kill_on_drop: false }`
[INFO] [stdout] 24407686f7c9b02c88756300276075647662b0d2e1a5c52682b5fcbb84ff9b8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 8d670a2fb44fdbffedd06b80a483ed92de0b7ee4dc3014a151c7616d8811774e
[INFO] running `Command { std: "docker" "start" "-a" "8d670a2fb44fdbffedd06b80a483ed92de0b7ee4dc3014a151c7616d8811774e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking rand_core v0.4.0 (https://github.com/rust-random/rand#73ef869e)
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking bit-vec v0.5.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking rand_hc v0.1.0 (https://github.com/rust-random/rand#73ef869e)
[INFO] [stderr]    Compiling rand_pcg v0.1.2 (https://github.com/rust-random/rand#73ef869e)
[INFO] [stderr]    Compiling rand v0.6.5 (https://github.com/rust-random/rand#73ef869e)
[INFO] [stderr]     Checking getrandom v0.1.1
[INFO] [stderr]  Documenting database_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `LSM_tree` should have an upper camel case name
[INFO] [stdout]   --> src/lsm.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct LSM_tree{
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to upper camel case: `LsmTree`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `database_rust`
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name database_rust 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=0f0c83681a16f25f -L dependency=/opt/rustwide/target/debug/deps --extern bit_vec=/opt/rustwide/target/debug/deps/libbit_vec-688de71605c64808.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1be4b9666e230dd4.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-8363e4d08ee4b28c.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8d670a2fb44fdbffedd06b80a483ed92de0b7ee4dc3014a151c7616d8811774e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d670a2fb44fdbffedd06b80a483ed92de0b7ee4dc3014a151c7616d8811774e", kill_on_drop: false }`
[INFO] [stdout] 8d670a2fb44fdbffedd06b80a483ed92de0b7ee4dc3014a151c7616d8811774e