Dec 02 04:57:04.781 INFO documenting oursh-0.2.0 against master#147e60c5f89cfa2d3ffc247413956a37582c98e7 for pr-55318-1
Dec 02 04:57:04.781 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318-1/worker-4/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55318-1/master#147e60c5f89cfa2d3ffc247413956a37582c98e7:/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 +147e60c5f89cfa2d3ffc247413956a37582c98e7-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 04:57:04.921 INFO [stdout] e2da5e2d6f00ced989006ab23a2d0de3cb1841bb8b1483fa3f2f179d104f5fb3
Dec 02 04:57:04.923 INFO running `"docker" "start" "-a" "e2da5e2d6f00ced989006ab23a2d0de3cb1841bb8b1483fa3f2f179d104f5fb3"`
Dec 02 04:57:05.409 INFO [stderr] usermod: no changes
Dec 02 04:57:05.686 INFO [stderr]    Compiling lalrpop-util v0.16.2
Dec 02 04:57:05.693 INFO [stderr]     Checking utf8 v0.0.2
Dec 02 04:57:05.694 INFO [stderr]    Compiling ena v0.10.1
Dec 02 04:57:05.695 INFO [stderr]    Compiling new_debug_unreachable v1.0.1
Dec 02 04:57:05.699 INFO [stderr]    Compiling docopt v1.0.2
Dec 02 04:57:05.699 INFO [stderr]     Checking docopt v0.8.3
Dec 02 04:57:05.701 INFO [stderr]     Checking pwd v1.3.0
Dec 02 04:57:06.588 INFO [stderr]    Compiling string_cache v0.7.3
Dec 02 04:57:11.773 INFO [stderr]    Compiling lalrpop v0.16.2
Dec 02 04:57:53.382 INFO [stderr]    Compiling oursh v0.2.0 (/source)
Dec 02 04:57:59.425 INFO [stderr]  Documenting oursh v0.2.0 (/source)
Dec 02 04:58:00.932 INFO [stderr] error[E0635]: unknown feature `alloc_system`
Dec 02 04:58:00.932 INFO [stderr]   --> src/lib.rs:77:12
Dec 02 04:58:00.932 INFO [stderr]    |
Dec 02 04:58:00.932 INFO [stderr] 77 | #![feature(alloc_system, box_syntax, box_patterns)]
Dec 02 04:58:00.932 INFO [stderr]    |            ^^^^^^^^^^^^
Dec 02 04:58:00.932 INFO [stderr] 
Dec 02 04:58:00.937 INFO [stderr] error: Compilation failed, aborting rustdoc
Dec 02 04:58:00.937 INFO [stderr] 
Dec 02 04:58:00.993 INFO [stderr] error: Could not document `oursh`.
Dec 02 04:58:00.993 INFO [stderr] 
Dec 02 04:58:00.993 INFO [stderr] Caused by:
Dec 02 04:58:00.993 INFO [stderr]   process didn't exit successfully: `rustdoc --crate-name oursh src/lib.rs --color never -o /target/doc --cfg 'feature="default"' --cfg 'feature="history"' --document-private-items -L dependency=/target/debug/deps --extern docopt=/target/debug/deps/libdocopt-e5fd99b9eb3b176d.rmeta --extern lalrpop_util=/target/debug/deps/liblalrpop_util-896025585016ffcc.rmeta --extern nix=/target/debug/deps/libnix-30a525fd68e222e4.rmeta --extern pwd=/target/debug/deps/libpwd-b67cf7c8a2f9b7f4.rmeta --extern regex=/target/debug/deps/libregex-beb409f023b739af.rmeta --extern termion=/target/debug/deps/libtermion-4ce5c877bc745204.rmeta --extern utf8=/target/debug/deps/libutf8-ad399fe6cac89b1c.rmeta --cap-lints=forbid` (exit code: 1)
Dec 02 04:58:00.993 INFO [stderr] su: No module specific data is present
Dec 02 04:58:01.484 INFO running `"docker" "inspect" "e2da5e2d6f00ced989006ab23a2d0de3cb1841bb8b1483fa3f2f179d104f5fb3"`
Dec 02 04:58:01.830 INFO running `"docker" "rm" "-f" "e2da5e2d6f00ced989006ab23a2d0de3cb1841bb8b1483fa3f2f179d104f5fb3"`
Dec 02 04:58:02.144 INFO [stdout] e2da5e2d6f00ced989006ab23a2d0de3cb1841bb8b1483fa3f2f179d104f5fb3