Dec 12 07:27:45.736 INFO checking skeptic-0.13.4 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 07:27:45.736 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 07:27:46.002 INFO [stdout] 7229f9553a7e921f89a50dcf9fa2a294d970fe6aed0c977459569653a4689d50
Dec 12 07:27:46.012 INFO running `"docker" "start" "-a" "7229f9553a7e921f89a50dcf9fa2a294d970fe6aed0c977459569653a4689d50"`
Dec 12 07:27:47.468 INFO [stderr] usermod: no changes
Dec 12 07:27:47.628 INFO [stderr]     Checking bytecount v0.4.0
Dec 12 07:27:47.628 INFO [stderr]     Checking pulldown-cmark v0.2.0
Dec 12 07:27:47.628 INFO [stderr]     Checking error-chain v0.12.0
Dec 12 07:27:48.800 INFO [stderr]     Checking cargo_metadata v0.6.3
Dec 12 07:27:50.853 INFO [stderr]     Checking skeptic v0.13.4 (/source)
Dec 12 07:27:55.491 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.00s
Dec 12 07:27:55.499 INFO [stderr] su: No module specific data is present
Dec 12 07:27:55.944 INFO running `"docker" "inspect" "7229f9553a7e921f89a50dcf9fa2a294d970fe6aed0c977459569653a4689d50"`
Dec 12 07:27:56.110 INFO running `"docker" "rm" "-f" "7229f9553a7e921f89a50dcf9fa2a294d970fe6aed0c977459569653a4689d50"`
Dec 12 07:27:56.305 INFO [stdout] 7229f9553a7e921f89a50dcf9fa2a294d970fe6aed0c977459569653a4689d50