Dec 02 05:42:16.096 INFO documenting merkle_tree-0.1.0 against try#f86f76f89ea2b1ccbfb3741962ec2029d878a389 for pr-55318-1
Dec 02 05:42:16.096 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-3/try#f86f76f89ea2b1ccbfb3741962ec2029d878a389:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55318-1/try#f86f76f89ea2b1ccbfb3741962ec2029d878a389:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +f86f76f89ea2b1ccbfb3741962ec2029d878a389-alt doc --frozen --no-deps --document-private-items" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 05:42:16.436 INFO [stdout] c92ae36c310f0fd7a7fb5e11c802dc47181c94346c70d2cc490b4e3949a58b65
Dec 02 05:42:16.442 INFO running `"docker" "start" "-a" "c92ae36c310f0fd7a7fb5e11c802dc47181c94346c70d2cc490b4e3949a58b65"`
Dec 02 05:42:16.808 INFO [stderr] usermod: no changes
Dec 02 05:42:16.947 INFO [stderr]  Documenting merkle_tree v0.1.0 (/source)
Dec 02 05:42:19.975 INFO [stderr] error: `[u8]` cannot be resolved, ignoring it...
Dec 02 05:42:19.975 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rust-crypto-0.2.36/src/mac.rs:36:5
Dec 02 05:42:19.975 INFO [stderr]    |
Dec 02 05:42:19.975 INFO [stderr] 36 | /     /**
Dec 02 05:42:19.975 INFO [stderr] 37 | |      * Obtain the result of a Mac computation as [u8]. This method should be used very carefully
Dec 02 05:42:19.975 INFO [stderr] 38 | |      * since incorrect use of the Mac code could result in permitting a timing attack which defeats
Dec 02 05:42:19.975 INFO [stderr] 39 | |      * the security provided by a Mac function.
Dec 02 05:42:19.975 INFO [stderr] 40 | |      */
Dec 02 05:42:19.975 INFO [stderr]    | |_______^
Dec 02 05:42:19.975 INFO [stderr]    |
Dec 02 05:42:19.975 INFO [stderr] note: lint level defined here
Dec 02 05:42:19.975 INFO [stderr]   --> src/lib.rs:1:9
Dec 02 05:42:19.975 INFO [stderr]    |
Dec 02 05:42:19.975 INFO [stderr] 1  | #![deny(warnings)]
Dec 02 05:42:19.975 INFO [stderr]    |         ^^^^^^^^
Dec 02 05:42:19.975 INFO [stderr]    = note: #[deny(intra_doc_link_resolution_failure)] implied by #[deny(warnings)]
Dec 02 05:42:19.975 INFO [stderr]    = note: the link appears in this line:
Dec 02 05:42:19.975 INFO [stderr]            
Dec 02 05:42:19.975 INFO [stderr]             Obtain the result of a Mac computation as [u8]. This method should be used very carefully
Dec 02 05:42:19.975 INFO [stderr]                                                        ^^
Dec 02 05:42:19.975 INFO [stderr]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
Dec 02 05:42:19.975 INFO [stderr] 
Dec 02 05:42:20.041 INFO [stderr] error: Could not document `merkle_tree`.
Dec 02 05:42:20.041 INFO [stderr] 
Dec 02 05:42:20.041 INFO [stderr] Caused by:
Dec 02 05:42:20.041 INFO [stderr]   process didn't exit successfully: `rustdoc --crate-name merkle_tree src/lib.rs --color never -o /target/doc --document-private-items -L dependency=/target/debug/deps --extern bincode=/target/debug/deps/libbincode-89768922221eaf5f.rmeta --extern env_logger=/target/debug/deps/libenv_logger-7b63762f9b5f04a7.rmeta --extern hex_slice=/target/debug/deps/libhex_slice-03ee58f94ba9a85c.rmeta --extern log=/target/debug/deps/liblog-e0cc46681fde8164.rmeta --extern rayon=/target/debug/deps/librayon-80060769f9bd5392.rmeta --extern rmp_serde=/target/debug/deps/librmp_serde-e21d570022723c2d.rmeta --extern crypto=/target/debug/deps/libcrypto-c10b8c61af7687b7.rmeta --extern serde=/target/debug/deps/libserde-76bfe730453b5a77.rmeta --extern serde_derive=/target/debug/deps/libserde_derive-3e1597ddc1e33d41.so --extern serde_json=/target/debug/deps/libserde_json-5cebbd4b1876b33b.rmeta --cap-lints=forbid` (exit code: 1)
Dec 02 05:42:20.043 INFO [stderr] su: No module specific data is present
Dec 02 05:42:20.331 INFO running `"docker" "inspect" "c92ae36c310f0fd7a7fb5e11c802dc47181c94346c70d2cc490b4e3949a58b65"`
Dec 02 05:42:20.434 INFO running `"docker" "rm" "-f" "c92ae36c310f0fd7a7fb5e11c802dc47181c94346c70d2cc490b4e3949a58b65"`
Dec 02 05:42:20.519 INFO [stdout] c92ae36c310f0fd7a7fb5e11c802dc47181c94346c70d2cc490b4e3949a58b65