Oct 13 10:35:53.610 INFO checking protobuf_codec-0.2.4 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 10:35:53.610 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 13 10:35:53.916 INFO blam! 8d7e4485e8f49b318e1f8cbc2a23cb095d6df52bd54ca8aa6ba2c8bd150fc976
Oct 13 10:35:53.920 INFO running `"docker" "start" "-a" "8d7e4485e8f49b318e1f8cbc2a23cb095d6df52bd54ca8aa6ba2c8bd150fc976"`
Oct 13 10:35:54.898 INFO kablam! usermod: no changes
Oct 13 10:35:54.951 INFO kablam!    Compiling proc-macro2 v0.4.20
Oct 13 10:35:59.706 INFO kablam!    Compiling quote v0.6.8
Oct 13 10:36:03.924 INFO kablam!    Compiling syn v0.15.9
Oct 13 10:36:13.294 INFO kablam!    Compiling trackable_derive v0.1.1
Oct 13 10:36:18.100 INFO kablam!     Checking trackable v0.2.20
Oct 13 10:36:18.919 INFO kablam!     Checking bytecodec v0.4.11
Oct 13 10:36:22.609 INFO kablam!     Checking protobuf_codec v0.2.4 (/source)
Oct 13 10:36:32.388 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 37.47s
Oct 13 10:36:32.391 INFO kablam! su: No module specific data is present
Oct 13 10:36:33.771 INFO running `"docker" "rm" "-f" "8d7e4485e8f49b318e1f8cbc2a23cb095d6df52bd54ca8aa6ba2c8bd150fc976"`
Oct 13 10:36:34.153 INFO blam! 8d7e4485e8f49b318e1f8cbc2a23cb095d6df52bd54ca8aa6ba2c8bd150fc976