Oct 12 12:40:45.986 INFO checking tac44/syncopation against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 12:40:45.987 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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 12 12:40:46.467 INFO blam! cee3848d0af1c7c09bd63e5f70eedadf85bfac153eb78e3b52b6de9c0846a52c
Oct 12 12:40:46.469 INFO running `"docker" "start" "-a" "cee3848d0af1c7c09bd63e5f70eedadf85bfac153eb78e3b52b6de9c0846a52c"`
Oct 12 12:40:47.776 INFO kablam! usermod: no changes
Oct 12 12:40:47.973 INFO kablam!    Compiling libz-sys v1.0.23
Oct 12 12:40:47.975 INFO kablam!    Compiling libssh2-sys v0.2.11
Oct 12 12:40:47.996 INFO kablam!     Checking serde_json v1.0.31
Oct 12 12:40:48.004 INFO kablam!    Compiling syn v0.15.7
Oct 12 12:41:01.696 INFO kablam!     Checking ssh2 v0.3.3
Oct 12 12:41:08.213 INFO kablam!    Compiling serde_derive v1.0.79
Oct 12 12:41:24.776 INFO kablam!     Checking syncopation v0.1.0 (/source)
Oct 12 12:41:25.524 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 37.71s
Oct 12 12:41:25.524 INFO kablam! su: No module specific data is present
Oct 12 12:41:26.038 INFO running `"docker" "rm" "-f" "cee3848d0af1c7c09bd63e5f70eedadf85bfac153eb78e3b52b6de9c0846a52c"`
Oct 12 12:41:26.381 INFO blam! cee3848d0af1c7c09bd63e5f70eedadf85bfac153eb78e3b52b6de9c0846a52c