Nov 28 09:08:23.690 INFO documenting singletonum-0.2.0 against try#f5a0bd723553ea4b7556bd7087b9f0919cafb483 for pr-55318
Nov 28 09:08:23.692 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55318/worker-4/try#f5a0bd723553ea4b7556bd7087b9f0919cafb483:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 09:08:23.904 INFO [stdout] 499ff140697da1461bddb73d0fb8a71ae20632e907c4a794e8d389e514ae8a88
Nov 28 09:08:23.909 INFO running `"docker" "start" "-a" "499ff140697da1461bddb73d0fb8a71ae20632e907c4a794e8d389e514ae8a88"`
Nov 28 09:08:24.347 INFO [stderr] usermod: no changes
Nov 28 09:08:24.435 INFO [stderr]     Checking lock_api v0.1.5
Nov 28 09:08:24.436 INFO [stderr]    Compiling singletonum-derive v0.2.0
Nov 28 09:08:24.835 INFO [stderr]     Checking parking_lot v0.6.4
Nov 28 09:08:25.931 INFO [stderr]     Checking once_cell v0.1.6
Nov 28 09:08:28.227 INFO [stderr]  Documenting singletonum v0.2.0 (/source)
Nov 28 09:08:30.403 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.04s
Nov 28 09:08:30.411 INFO [stderr] su: No module specific data is present
Nov 28 09:08:31.001 INFO running `"docker" "inspect" "499ff140697da1461bddb73d0fb8a71ae20632e907c4a794e8d389e514ae8a88"`
Nov 28 09:08:31.096 INFO running `"docker" "rm" "-f" "499ff140697da1461bddb73d0fb8a71ae20632e907c4a794e8d389e514ae8a88"`
Nov 28 09:08:31.170 INFO [stdout] 499ff140697da1461bddb73d0fb8a71ae20632e907c4a794e8d389e514ae8a88