Dec 02 04:43:02.641 INFO documenting persistentcache-0.1.6 against try#f86f76f89ea2b1ccbfb3741962ec2029d878a389 for pr-55318-1
Dec 02 04:43:02.641 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-0/try#f86f76f89ea2b1ccbfb3741962ec2029d878a389:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 04:43:02.931 INFO [stdout] 28c969964b541f09b059d0426dec76d2307d2b5905ff059ce7048b4eb20dcf55
Dec 02 04:43:02.933 INFO running `"docker" "start" "-a" "28c969964b541f09b059d0426dec76d2307d2b5905ff059ce7048b4eb20dcf55"`
Dec 02 04:43:03.326 INFO [stderr] usermod: no changes
Dec 02 04:43:03.444 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 02 04:43:03.531 INFO [stderr]    Compiling futures-await-quote v0.4.0
Dec 02 04:43:03.533 INFO [stderr]    Compiling bincode v1.0.1
Dec 02 04:43:06.086 INFO [stderr]    Compiling futures-await-synom v0.12.0
Dec 02 04:43:09.704 INFO [stderr]    Compiling futures-await-syn v0.12.0
Dec 02 04:43:21.581 INFO [stderr]    Compiling persistentcache_procmacro v0.0.3
Dec 02 04:43:24.670 INFO [stderr]  Documenting persistentcache v0.1.6 (/source)
Dec 02 04:43:24.724 INFO [stderr] error[E0557]: feature has been removed
Dec 02 04:43:24.724 INFO [stderr]    --> src/lib.rs:246:12
Dec 02 04:43:24.725 INFO [stderr]     |
Dec 02 04:43:24.725 INFO [stderr] 246 | #![feature(proc_macro_gen)]
Dec 02 04:43:24.725 INFO [stderr]     |            ^^^^^^^^^^^^^^
Dec 02 04:43:24.725 INFO [stderr]     |
Dec 02 04:43:24.725 INFO [stderr] note: subsumed by `#![feature(proc_macro_hygiene)]`
Dec 02 04:43:24.725 INFO [stderr]    --> src/lib.rs:246:12
Dec 02 04:43:24.725 INFO [stderr]     |
Dec 02 04:43:24.725 INFO [stderr] 246 | #![feature(proc_macro_gen)]
Dec 02 04:43:24.725 INFO [stderr]     |            ^^^^^^^^^^^^^^
Dec 02 04:43:24.725 INFO [stderr] 
Dec 02 04:43:25.546 INFO [stderr] error: Compilation failed, aborting rustdoc
Dec 02 04:43:25.546 INFO [stderr] 
Dec 02 04:43:25.566 INFO [stderr] error: Could not document `persistentcache`.
Dec 02 04:43:25.566 INFO [stderr] 
Dec 02 04:43:25.566 INFO [stderr] Caused by:
Dec 02 04:43:25.566 INFO [stderr]   process didn't exit successfully: `rustdoc --crate-name persistentcache src/lib.rs --color never -o /target/doc --cfg 'feature="default"' --document-private-items -L dependency=/target/debug/deps --extern bincode=/target/debug/deps/libbincode-2d846b0068d78047.rmeta --extern error_chain=/target/debug/deps/liberror_chain-f156f49a8b2330c0.rmeta --extern fs2=/target/debug/deps/libfs2-2ff95130e87b9351.rmeta --extern lazy_static=/target/debug/deps/liblazy_static-383161b55615b251.rmeta --extern persistentcache_procmacro=/target/debug/deps/libpersistentcache_procmacro-94e149e0aa65b2b9.so --extern redis=/target/debug/deps/libredis-d627c1e35fb91a2c.rmeta --extern regex=/target/debug/deps/libregex-3f7f7d71ad0e7c4e.rmeta --cap-lints=forbid` (exit code: 1)
Dec 02 04:43:25.569 INFO [stderr] su: No module specific data is present
Dec 02 04:43:25.893 INFO running `"docker" "inspect" "28c969964b541f09b059d0426dec76d2307d2b5905ff059ce7048b4eb20dcf55"`
Dec 02 04:43:26.019 INFO running `"docker" "rm" "-f" "28c969964b541f09b059d0426dec76d2307d2b5905ff059ce7048b4eb20dcf55"`
Dec 02 04:43:26.175 INFO [stdout] 28c969964b541f09b059d0426dec76d2307d2b5905ff059ce7048b4eb20dcf55