Dec 11 10:10:37.234 INFO checking sandhose/rust-simple-dht against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 10:10:37.234 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 11 10:10:37.622 INFO [stdout] b566b3a8da0dc2ef168d4a84d7c062199b09b6a7567c3f39b4c2d497b2b0f105
Dec 11 10:10:37.624 INFO running `"docker" "start" "-a" "b566b3a8da0dc2ef168d4a84d7c062199b09b6a7567c3f39b4c2d497b2b0f105"`
Dec 11 10:10:39.228 INFO [stderr] usermod: no changes
Dec 11 10:10:39.416 INFO [stderr]     Checking nix v0.5.1
Dec 11 10:10:39.428 INFO [stderr]     Checking structopt v0.1.6
Dec 11 10:10:39.428 INFO [stderr]     Checking env_logger v0.4.3
Dec 11 10:10:43.056 INFO [stderr]     Checking rustyline v1.0.0
Dec 11 10:10:43.925 INFO [stderr]     Checking simple_dht v0.1.0 (/source)
Dec 11 10:10:47.448 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.20s
Dec 11 10:10:47.466 INFO [stderr] su: No module specific data is present
Dec 11 10:10:48.511 INFO running `"docker" "inspect" "b566b3a8da0dc2ef168d4a84d7c062199b09b6a7567c3f39b4c2d497b2b0f105"`
Dec 11 10:10:48.816 INFO running `"docker" "rm" "-f" "b566b3a8da0dc2ef168d4a84d7c062199b09b6a7567c3f39b4c2d497b2b0f105"`
Dec 11 10:10:49.073 INFO [stdout] b566b3a8da0dc2ef168d4a84d7c062199b09b6a7567c3f39b4c2d497b2b0f105