Nov 29 19:33:51.848 INFO checking rom1v/mio-sample against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 19:33:51.848 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 29 19:33:52.462 INFO [stdout] b1e4e649f6c290ecab215a679da95e0f8975b4aa9ecff269ad3ca7106bfc4eaf
Nov 29 19:33:52.465 INFO running `"docker" "start" "-a" "b1e4e649f6c290ecab215a679da95e0f8975b4aa9ecff269ad3ca7106bfc4eaf"`
Nov 29 19:33:53.675 INFO [stderr] usermod: no changes
Nov 29 19:33:53.760 INFO [stderr]     Checking libc v0.2.26
Nov 29 19:33:54.779 INFO [stderr]     Checking iovec v0.1.0
Nov 29 19:33:54.779 INFO [stderr]     Checking net2 v0.2.29
Nov 29 19:33:55.630 INFO [stderr]     Checking mio v0.6.9
Nov 29 19:33:57.116 INFO [stderr]     Checking mio-sample v0.1.0 (/source)
Nov 29 19:33:58.000 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.29s
Nov 29 19:33:58.008 INFO [stderr] su: No module specific data is present
Nov 29 19:33:58.987 INFO running `"docker" "inspect" "b1e4e649f6c290ecab215a679da95e0f8975b4aa9ecff269ad3ca7106bfc4eaf"`
Nov 29 19:33:59.430 INFO running `"docker" "rm" "-f" "b1e4e649f6c290ecab215a679da95e0f8975b4aa9ecff269ad3ca7106bfc4eaf"`
Nov 29 19:33:59.764 INFO [stdout] b1e4e649f6c290ecab215a679da95e0f8975b4aa9ecff269ad3ca7106bfc4eaf