Nov 28 02:22:29.056 INFO checking kk1fff/backprop against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 02:22:29.056 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 02:22:29.250 INFO [stdout] a27c188c3afd9b37ee0ef0c7ac0c1c2899c8408ac358378690ace095c4ee6b1f
Nov 28 02:22:29.253 INFO running `"docker" "start" "-a" "a27c188c3afd9b37ee0ef0c7ac0c1c2899c8408ac358378690ace095c4ee6b1f"`
Nov 28 02:22:29.776 INFO [stderr] usermod: no changes
Nov 28 02:22:29.840 INFO [stderr]     Checking backprop v0.1.0 (/source)
Nov 28 02:22:30.192 INFO [stderr] warning: field is never used: `name`
Nov 28 02:22:30.192 INFO [stderr]   --> src/main.rs:46:5
Nov 28 02:22:30.192 INFO [stderr]    |
Nov 28 02:22:30.192 INFO [stderr] 46 |     name: String,
Nov 28 02:22:30.192 INFO [stderr]    |     ^^^^^^^^^^^^
Nov 28 02:22:30.192 INFO [stderr]    |
Nov 28 02:22:30.192 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 02:22:30.192 INFO [stderr] 
Nov 28 02:22:30.192 INFO [stderr] warning: field is never used: `name`
Nov 28 02:22:30.192 INFO [stderr]   --> src/main.rs:93:5
Nov 28 02:22:30.192 INFO [stderr]    |
Nov 28 02:22:30.192 INFO [stderr] 93 |     name: String,
Nov 28 02:22:30.192 INFO [stderr]    |     ^^^^^^^^^^^^
Nov 28 02:22:30.192 INFO [stderr] 
Nov 28 02:22:30.192 INFO [stderr] warning: field is never used: `op_set`
Nov 28 02:22:30.192 INFO [stderr]   --> src/main.rs:94:5
Nov 28 02:22:30.192 INFO [stderr]    |
Nov 28 02:22:30.192 INFO [stderr] 94 |     op_set: HashSet<String>,
Nov 28 02:22:30.192 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 02:22:30.192 INFO [stderr] 
Nov 28 02:22:30.241 INFO [stderr] warning: field is never used: `name`
Nov 28 02:22:30.241 INFO [stderr]   --> src/main.rs:46:5
Nov 28 02:22:30.241 INFO [stderr]    |
Nov 28 02:22:30.241 INFO [stderr] 46 |     name: String,
Nov 28 02:22:30.241 INFO [stderr]    |     ^^^^^^^^^^^^
Nov 28 02:22:30.241 INFO [stderr]    |
Nov 28 02:22:30.241 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 02:22:30.241 INFO [stderr] 
Nov 28 02:22:30.241 INFO [stderr] warning: field is never used: `name`
Nov 28 02:22:30.241 INFO [stderr]   --> src/main.rs:93:5
Nov 28 02:22:30.241 INFO [stderr]    |
Nov 28 02:22:30.241 INFO [stderr] 93 |     name: String,
Nov 28 02:22:30.241 INFO [stderr]    |     ^^^^^^^^^^^^
Nov 28 02:22:30.241 INFO [stderr] 
Nov 28 02:22:30.241 INFO [stderr] warning: field is never used: `op_set`
Nov 28 02:22:30.241 INFO [stderr]   --> src/main.rs:94:5
Nov 28 02:22:30.241 INFO [stderr]    |
Nov 28 02:22:30.241 INFO [stderr] 94 |     op_set: HashSet<String>,
Nov 28 02:22:30.241 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 02:22:30.241 INFO [stderr] 
Nov 28 02:22:30.261 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
Nov 28 02:22:30.263 INFO [stderr] su: No module specific data is present
Nov 28 02:22:30.551 INFO running `"docker" "inspect" "a27c188c3afd9b37ee0ef0c7ac0c1c2899c8408ac358378690ace095c4ee6b1f"`
Nov 28 02:22:30.659 INFO running `"docker" "rm" "-f" "a27c188c3afd9b37ee0ef0c7ac0c1c2899c8408ac358378690ace095c4ee6b1f"`
Nov 28 02:22:30.758 INFO [stdout] a27c188c3afd9b37ee0ef0c7ac0c1c2899c8408ac358378690ace095c4ee6b1f