Dec 12 03:40:14.872 INFO checking BrendanBall/rusty-mirror against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 03:40:14.872 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 03:40:15.139 INFO [stdout] 15ea806d05b2abfa45f86e15a7e40cb96f589b329c8e359cf36e3e98b4094e91
Dec 12 03:40:15.146 INFO running `"docker" "start" "-a" "15ea806d05b2abfa45f86e15a7e40cb96f589b329c8e359cf36e3e98b4094e91"`
Dec 12 03:40:15.776 INFO [stderr] usermod: no changes
Dec 12 03:40:15.859 INFO [stderr]     Checking tokio-io v0.1.4
Dec 12 03:40:15.861 INFO [stderr]     Checking mio v0.6.11
Dec 12 03:40:18.274 INFO [stderr]     Checking tokio-core v0.1.11
Dec 12 03:40:20.038 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 12 03:40:22.949 INFO [stderr]     Checking rusty-mirror v0.1.0 (/source)
Dec 12 03:40:27.441 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.64s
Dec 12 03:40:27.452 INFO [stderr] su: No module specific data is present
Dec 12 03:40:28.379 INFO running `"docker" "inspect" "15ea806d05b2abfa45f86e15a7e40cb96f589b329c8e359cf36e3e98b4094e91"`
Dec 12 03:40:28.623 INFO running `"docker" "rm" "-f" "15ea806d05b2abfa45f86e15a7e40cb96f589b329c8e359cf36e3e98b4094e91"`
Dec 12 03:40:28.916 INFO [stdout] 15ea806d05b2abfa45f86e15a7e40cb96f589b329c8e359cf36e3e98b4094e91