Dec 05 06:37:50.917 INFO checking skeptic-0.13.3 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 06:37:50.917 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 06:37:51.351 INFO [stdout] 253fe46540b2ed19e81edb3f88dc5d78cf28da8243b94411a655b47d59167ba4
Dec 05 06:37:51.355 INFO running `"docker" "start" "-a" "253fe46540b2ed19e81edb3f88dc5d78cf28da8243b94411a655b47d59167ba4"`
Dec 05 06:37:52.133 INFO [stderr] usermod: no changes
Dec 05 06:37:52.211 INFO [stderr]     Checking unindent v0.1.3
Dec 05 06:37:52.211 INFO [stderr]     Checking error-chain v0.11.0
Dec 05 06:37:53.038 INFO [stderr]     Checking cargo_metadata v0.5.8
Dec 05 06:37:54.697 INFO [stderr]     Checking skeptic v0.13.3 (/source)
Dec 05 06:37:57.323 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.20s
Dec 05 06:37:57.337 INFO [stderr] su: No module specific data is present
Dec 05 06:37:58.363 INFO running `"docker" "inspect" "253fe46540b2ed19e81edb3f88dc5d78cf28da8243b94411a655b47d59167ba4"`
Dec 05 06:37:58.693 INFO running `"docker" "rm" "-f" "253fe46540b2ed19e81edb3f88dc5d78cf28da8243b94411a655b47d59167ba4"`
Dec 05 06:37:59.108 INFO [stdout] 253fe46540b2ed19e81edb3f88dc5d78cf28da8243b94411a655b47d59167ba4