[INFO] fetching crate lsm_engine 0.1.9...
[INFO] documenting lsm_engine-0.1.9 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate lsm_engine 0.1.9 into /workspace/builds/worker-24/source
[INFO] validating manifest of crates.io crate lsm_engine 0.1.9 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 crates.io crate lsm_engine 0.1.9
[INFO] finished tweaking crates.io crate lsm_engine 0.1.9
[INFO] tweaked toml for crates.io crate lsm_engine 0.1.9 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded compare v0.1.0
[INFO] [stderr]   Downloaded binary-heap-plus v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] f830b360af32d4bd359ae3e3e4836439d2cd559a098ba04d886b64591af83d72
[INFO] running `Command { std: "docker" "start" "-a" "f830b360af32d4bd359ae3e3e4836439d2cd559a098ba04d886b64591af83d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f830b360af32d4bd359ae3e3e4836439d2cd559a098ba04d886b64591af83d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f830b360af32d4bd359ae3e3e4836439d2cd559a098ba04d886b64591af83d72", kill_on_drop: false }`
[INFO] [stdout] f830b360af32d4bd359ae3e3e4836439d2cd559a098ba04d886b64591af83d72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 83b65c5b7c094dbc6816b51e65ec2d15308997066848c9afa68c22abaa0aec70
[INFO] running `Command { std: "docker" "start" "-a" "83b65c5b7c094dbc6816b51e65ec2d15308997066848c9afa68c22abaa0aec70", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking compare v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking binary-heap-plus v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]  Documenting lsm_engine v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: module `export` is private
[INFO] [stdout]    --> src/kv.rs:5:12
[INFO] [stdout]     |
[INFO] [stdout] 5   | use serde::export::TryFrom;
[INFO] [stdout]     |            ^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `export` is defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.127/src/lib.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 275 | use self::__private as export;
[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 E0603`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `lsm_engine`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name lsm_engine src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern binary_heap_plus=/opt/rustwide/target/debug/deps/libbinary_heap_plus-4da5fab651079c0b.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-5e37eee3e84fafab.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-ad8477e60b15ec81.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8914c1b130a4d038.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-bb7233c1e238a968.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-3204bb2f4f218753.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b32a054c81ce489a.rmeta --cap-lints=warn --crate-version 0.1.9` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "83b65c5b7c094dbc6816b51e65ec2d15308997066848c9afa68c22abaa0aec70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83b65c5b7c094dbc6816b51e65ec2d15308997066848c9afa68c22abaa0aec70", kill_on_drop: false }`
[INFO] [stdout] 83b65c5b7c094dbc6816b51e65ec2d15308997066848c9afa68c22abaa0aec70
