Oct 12 18:56:04.974 INFO checking kk1fff/backprop against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 18:56:04.974 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/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 12 18:56:05.129 INFO blam! 704f10e73705a0fd070cf30881f2e14c8ef7f50ec31d4dc7e865013e234603f9
Oct 12 18:56:05.130 INFO running `"docker" "start" "-a" "704f10e73705a0fd070cf30881f2e14c8ef7f50ec31d4dc7e865013e234603f9"`
Oct 12 18:56:05.521 INFO kablam! usermod: no changes
Oct 12 18:56:05.554 INFO kablam!     Checking backprop v0.1.0 (/source)
Oct 12 18:56:05.884 INFO kablam! warning: field is never used: `name`
Oct 12 18:56:05.884 INFO kablam!   --> src/main.rs:46:5
Oct 12 18:56:05.884 INFO kablam!    |
Oct 12 18:56:05.884 INFO kablam! 46 |     name: String,
Oct 12 18:56:05.884 INFO kablam!    |     ^^^^^^^^^^^^
Oct 12 18:56:05.884 INFO kablam!    |
Oct 12 18:56:05.884 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 18:56:05.884 INFO kablam! 
Oct 12 18:56:05.884 INFO kablam! warning: field is never used: `name`
Oct 12 18:56:05.884 INFO kablam!   --> src/main.rs:93:5
Oct 12 18:56:05.884 INFO kablam!    |
Oct 12 18:56:05.884 INFO kablam! 93 |     name: String,
Oct 12 18:56:05.884 INFO kablam!    |     ^^^^^^^^^^^^
Oct 12 18:56:05.884 INFO kablam! 
Oct 12 18:56:05.884 INFO kablam! warning: field is never used: `op_set`
Oct 12 18:56:05.884 INFO kablam!   --> src/main.rs:94:5
Oct 12 18:56:05.884 INFO kablam!    |
Oct 12 18:56:05.884 INFO kablam! 94 |     op_set: HashSet<String>,
Oct 12 18:56:05.884 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 18:56:05.884 INFO kablam! 
Oct 12 18:56:05.884 INFO kablam! warning: field is never used: `name`
Oct 12 18:56:05.884 INFO kablam!   --> src/main.rs:46:5
Oct 12 18:56:05.884 INFO kablam!    |
Oct 12 18:56:05.884 INFO kablam! 46 |     name: String,
Oct 12 18:56:05.884 INFO kablam!    |     ^^^^^^^^^^^^
Oct 12 18:56:05.884 INFO kablam!    |
Oct 12 18:56:05.884 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 18:56:05.884 INFO kablam! 
Oct 12 18:56:05.884 INFO kablam! warning: field is never used: `name`
Oct 12 18:56:05.884 INFO kablam!   --> src/main.rs:93:5
Oct 12 18:56:05.884 INFO kablam!    |
Oct 12 18:56:05.884 INFO kablam! 93 |     name: String,
Oct 12 18:56:05.884 INFO kablam!    |     ^^^^^^^^^^^^
Oct 12 18:56:05.884 INFO kablam! 
Oct 12 18:56:05.884 INFO kablam! warning: field is never used: `op_set`
Oct 12 18:56:05.884 INFO kablam!   --> src/main.rs:94:5
Oct 12 18:56:05.884 INFO kablam!    |
Oct 12 18:56:05.884 INFO kablam! 94 |     op_set: HashSet<String>,
Oct 12 18:56:05.884 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 18:56:05.884 INFO kablam! 
Oct 12 18:56:05.916 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
Oct 12 18:56:05.916 INFO kablam! su: No module specific data is present
Oct 12 18:56:06.235 INFO running `"docker" "rm" "-f" "704f10e73705a0fd070cf30881f2e14c8ef7f50ec31d4dc7e865013e234603f9"`
Oct 12 18:56:06.515 INFO blam! 704f10e73705a0fd070cf30881f2e14c8ef7f50ec31d4dc7e865013e234603f9