Nov 28 11:19:49.530 INFO documenting oursh-0.2.0 against try#f5a0bd723553ea4b7556bd7087b9f0919cafb483 for pr-55318
Nov 28 11:19:49.530 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-3/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55318/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/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 +f5a0bd723553ea4b7556bd7087b9f0919cafb483-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"`
Nov 28 11:19:49.699 INFO [stdout] 3306eb5da8347e3dc8fb18e760428d57833fac45567a0eb1d3187a6eb68a72cb
Nov 28 11:19:49.699 INFO running `"docker" "start" "-a" "3306eb5da8347e3dc8fb18e760428d57833fac45567a0eb1d3187a6eb68a72cb"`
Nov 28 11:19:50.070 INFO [stderr] usermod: no changes
Nov 28 11:19:50.336 INFO [stderr]     Checking utf8 v0.0.2
Nov 28 11:19:50.336 INFO [stderr]    Compiling itertools v0.7.11
Nov 28 11:19:50.338 INFO [stderr]    Compiling new_debug_unreachable v1.0.1
Nov 28 11:19:50.340 INFO [stderr]    Compiling docopt v1.0.2
Nov 28 11:19:50.341 INFO [stderr]     Checking pwd v1.3.0
Nov 28 11:19:50.731 INFO [stderr]    Compiling string_cache v0.7.3
Nov 28 11:19:55.438 INFO [stderr]    Compiling lalrpop v0.16.1
Nov 28 11:20:35.829 INFO [stderr]    Compiling oursh v0.2.0 (/source)
Nov 28 11:20:40.929 INFO [stderr]  Documenting oursh v0.2.0 (/source)
Nov 28 11:20:42.223 INFO [stderr] error[E0635]: unknown feature `alloc_system`
Nov 28 11:20:42.223 INFO [stderr]   --> src/lib.rs:77:12
Nov 28 11:20:42.223 INFO [stderr]    |
Nov 28 11:20:42.223 INFO [stderr] 77 | #![feature(alloc_system, box_syntax, box_patterns)]
Nov 28 11:20:42.223 INFO [stderr]    |            ^^^^^^^^^^^^
Nov 28 11:20:42.223 INFO [stderr] 
Nov 28 11:20:42.223 INFO [stderr] error: Compilation failed, aborting rustdoc
Nov 28 11:20:42.223 INFO [stderr] 
Nov 28 11:20:42.273 INFO [stderr] error: Could not document `oursh`.
Nov 28 11:20:42.274 INFO [stderr] 
Nov 28 11:20:42.274 INFO [stderr] Caused by:
Nov 28 11:20:42.274 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-d05bffe6a6a7f312.rmeta --extern lalrpop_util=/target/debug/deps/liblalrpop_util-ed4027c70053b475.rmeta --extern nix=/target/debug/deps/libnix-e34526f55c4a0108.rmeta --extern pwd=/target/debug/deps/libpwd-e6acd5486c86499c.rmeta --extern regex=/target/debug/deps/libregex-5021e68af5ef21cc.rmeta --extern termion=/target/debug/deps/libtermion-013956703a0a24d4.rmeta --extern utf8=/target/debug/deps/libutf8-ca0918a4619b684a.rmeta --cap-lints=forbid` (exit code: 1)
Nov 28 11:20:42.274 INFO [stderr] su: No module specific data is present
Nov 28 11:20:42.788 INFO running `"docker" "inspect" "3306eb5da8347e3dc8fb18e760428d57833fac45567a0eb1d3187a6eb68a72cb"`
Nov 28 11:20:42.880 INFO running `"docker" "rm" "-f" "3306eb5da8347e3dc8fb18e760428d57833fac45567a0eb1d3187a6eb68a72cb"`
Nov 28 11:20:43.027 INFO [stdout] 3306eb5da8347e3dc8fb18e760428d57833fac45567a0eb1d3187a6eb68a72cb