Dec 05 13:33:59.681 INFO checking futures-zipkin-0.4.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 13:33:59.682 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 13:33:59.944 INFO [stdout] 2b26169da9219a52a35e9af103a5dfa936d08983854b48044ce066a6cfdbb852
Dec 05 13:33:59.946 INFO running `"docker" "start" "-a" "2b26169da9219a52a35e9af103a5dfa936d08983854b48044ce066a6cfdbb852"`
Dec 05 13:34:00.332 INFO [stderr] usermod: no changes
Dec 05 13:34:00.399 INFO [stderr]     Checking zipkin-types v0.1.0
Dec 05 13:34:00.399 INFO [stderr]     Checking thread-local-object v0.1.0
Dec 05 13:34:00.400 INFO [stderr]     Checking rand v0.6.1
Dec 05 13:34:03.023 INFO [stderr]     Checking zipkin v0.3.2
Dec 05 13:34:04.376 INFO [stderr]     Checking futures-zipkin v0.4.0 (/source)
Dec 05 13:34:05.788 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.42s
Dec 05 13:34:05.788 INFO [stderr] su: No module specific data is present
Dec 05 13:34:06.249 INFO running `"docker" "inspect" "2b26169da9219a52a35e9af103a5dfa936d08983854b48044ce066a6cfdbb852"`
Dec 05 13:34:06.405 INFO running `"docker" "rm" "-f" "2b26169da9219a52a35e9af103a5dfa936d08983854b48044ce066a6cfdbb852"`
Dec 05 13:34:06.543 INFO [stdout] 2b26169da9219a52a35e9af103a5dfa936d08983854b48044ce066a6cfdbb852