Dec 03 11:15:47.681 INFO testing ga-v4-flattener-0.3.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 11:15:47.681 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 11:15:48.008 INFO [stdout] 9c8c3c80528e6d1f16bdeaac36975cfb460e4ef983a0778b607795a912322bdf
Dec 03 11:15:48.013 INFO running `"docker" "start" "-a" "9c8c3c80528e6d1f16bdeaac36975cfb460e4ef983a0778b607795a912322bdf"`
Dec 03 11:15:49.979 INFO [stderr] usermod: no changes
Dec 03 11:15:50.025 INFO [stderr] error: failed to parse manifest at `/source`
Dec 03 11:15:50.026 INFO [stderr] 
Dec 03 11:15:50.026 INFO [stderr] Caused by:
Dec 03 11:15:50.026 INFO [stderr]   can't find `to_delimited` bench, specify bench.path
Dec 03 11:15:50.039 INFO [stderr] su: No module specific data is present
Dec 03 11:15:51.357 INFO running `"docker" "inspect" "9c8c3c80528e6d1f16bdeaac36975cfb460e4ef983a0778b607795a912322bdf"`
Dec 03 11:15:51.577 INFO running `"docker" "rm" "-f" "9c8c3c80528e6d1f16bdeaac36975cfb460e4ef983a0778b607795a912322bdf"`
Dec 03 11:15:51.895 INFO [stdout] 9c8c3c80528e6d1f16bdeaac36975cfb460e4ef983a0778b607795a912322bdf