Dec 04 20:08:08.256 INFO checking davidbarsky/husk against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 20:08:08.256 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 04 20:08:08.695 INFO [stdout] 0069971743f2e89f42b6ff1653c06d75acfeb6f23b632449f2fa54c389a1b37b
Dec 04 20:08:08.696 INFO running `"docker" "start" "-a" "0069971743f2e89f42b6ff1653c06d75acfeb6f23b632449f2fa54c389a1b37b"`
Dec 04 20:08:09.883 INFO [stderr] usermod: no changes
Dec 04 20:08:09.972 INFO [stderr]    Compiling backtrace-sys v0.1.11
Dec 04 20:08:09.972 INFO [stderr]     Checking nix v0.8.1
Dec 04 20:08:28.211 INFO [stderr]     Checking backtrace v0.3.2
Dec 04 20:08:28.725 INFO [stderr]     Checking error-chain v0.10.0
Dec 04 20:08:29.383 INFO [stderr]     Checking husk v0.1.0 (/source)
Dec 04 20:08:30.328 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.43s
Dec 04 20:08:30.332 INFO [stderr] su: No module specific data is present
Dec 04 20:08:30.706 INFO running `"docker" "inspect" "0069971743f2e89f42b6ff1653c06d75acfeb6f23b632449f2fa54c389a1b37b"`
Dec 04 20:08:30.949 INFO running `"docker" "rm" "-f" "0069971743f2e89f42b6ff1653c06d75acfeb6f23b632449f2fa54c389a1b37b"`
Dec 04 20:08:31.123 INFO [stdout] 0069971743f2e89f42b6ff1653c06d75acfeb6f23b632449f2fa54c389a1b37b