Dec 12 04:03:55.901 INFO checking AlexanderThaller/get_grains against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 04:03:55.901 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 04:03:56.220 INFO [stdout] b277ad067415dbd3d5c1ad3c2d172cc285e7f6838ed62c8985d004e27e3152a4
Dec 12 04:03:56.232 INFO running `"docker" "start" "-a" "b277ad067415dbd3d5c1ad3c2d172cc285e7f6838ed62c8985d004e27e3152a4"`
Dec 12 04:03:57.213 INFO [stderr] usermod: no changes
Dec 12 04:03:57.444 INFO [stderr]     Checking loggerv v0.2.0
Dec 12 04:03:57.444 INFO [stderr]     Checking backtrace-sys v0.1.11
Dec 12 04:03:58.103 INFO [stderr]     Checking backtrace v0.3.2
Dec 12 04:03:59.149 INFO [stderr]     Checking error-chain v0.10.0
Dec 12 04:04:00.120 INFO [stderr]     Checking get_grains v1.0.0 (/source)
Dec 12 04:04:03.552 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.30s
Dec 12 04:04:03.564 INFO [stderr] su: No module specific data is present
Dec 12 04:04:04.418 INFO running `"docker" "inspect" "b277ad067415dbd3d5c1ad3c2d172cc285e7f6838ed62c8985d004e27e3152a4"`
Dec 12 04:04:04.692 INFO running `"docker" "rm" "-f" "b277ad067415dbd3d5c1ad3c2d172cc285e7f6838ed62c8985d004e27e3152a4"`
Dec 12 04:04:05.019 INFO [stdout] b277ad067415dbd3d5c1ad3c2d172cc285e7f6838ed62c8985d004e27e3152a4