Oct 31 22:55:45.017 INFO checking qingxiang-jia/learn-rust against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Oct 31 22:55:45.017 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-6/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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"`
Oct 31 22:55:45.451 INFO blam! f481ec54c1d0e86ace514486fb52186abbb9051836d3ea168b7a88ea2188f8e4
Oct 31 22:55:45.453 INFO running `"docker" "start" "-a" "f481ec54c1d0e86ace514486fb52186abbb9051836d3ea168b7a88ea2188f8e4"`
Oct 31 22:55:46.716 INFO kablam! usermod: no changes
Oct 31 22:55:46.832 INFO kablam!    Compiling proc-macro2 v0.3.3
Oct 31 22:55:50.960 INFO kablam!    Compiling quote v0.5.1
Oct 31 22:55:52.346 INFO kablam!    Compiling syn v0.13.1
Oct 31 22:56:01.420 INFO kablam!    Compiling serde_derive_internals v0.23.0
Oct 31 22:56:05.913 INFO kablam!    Compiling serde_derive v1.0.37
Oct 31 22:56:17.525 INFO kablam!     Checking learn_rust v0.1.0 (/source)
Oct 31 22:56:18.718 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 31.96s
Oct 31 22:56:18.724 INFO kablam! su: No module specific data is present
Oct 31 22:56:19.773 INFO running `"docker" "rm" "-f" "f481ec54c1d0e86ace514486fb52186abbb9051836d3ea168b7a88ea2188f8e4"`
Oct 31 22:56:20.180 INFO blam! f481ec54c1d0e86ace514486fb52186abbb9051836d3ea168b7a88ea2188f8e4