Oct 12 12:35:40.901 INFO checking taskie/rust-memo against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 12:35:40.902 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/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 12:35:41.506 INFO blam! 008c9bd783be50ca096c7f5169d96ade16de08d23152fb735b520226b7bc4ab2
Oct 12 12:35:41.508 INFO running `"docker" "start" "-a" "008c9bd783be50ca096c7f5169d96ade16de08d23152fb735b520226b7bc4ab2"`
Oct 12 12:35:43.864 INFO kablam! usermod: no changes
Oct 12 12:35:43.920 INFO kablam!     Checking memo v0.1.0 (/source)
Oct 12 12:35:44.320 INFO kablam! warning: struct is never constructed: `S2_1`
Oct 12 12:35:44.320 INFO kablam!  --> src/memo1.rs:5:1
Oct 12 12:35:44.320 INFO kablam!   |
Oct 12 12:35:44.321 INFO kablam! 5 | struct S2_1 { s1: Option<S1> }
Oct 12 12:35:44.321 INFO kablam!   | ^^^^^^^^^^^
Oct 12 12:35:44.321 INFO kablam!   |
Oct 12 12:35:44.321 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 12:35:44.321 INFO kablam! 
Oct 12 12:35:44.321 INFO kablam! warning: struct is never constructed: `S2_2`
Oct 12 12:35:44.321 INFO kablam!  --> src/memo1.rs:8:1
Oct 12 12:35:44.321 INFO kablam!   |
Oct 12 12:35:44.322 INFO kablam! 8 | struct S2_2<'a> { s1: Option<&'a S1> }
Oct 12 12:35:44.322 INFO kablam!   | ^^^^^^^^^^^^^^^
Oct 12 12:35:44.322 INFO kablam! 
Oct 12 12:35:44.322 INFO kablam! warning: method is never used: `f1`
Oct 12 12:35:44.322 INFO kablam!   --> src/memo1.rs:16:5
Oct 12 12:35:44.322 INFO kablam!    |
Oct 12 12:35:44.322 INFO kablam! 16 |     fn f1(&self) -> S1 {
Oct 12 12:35:44.322 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Oct 12 12:35:44.322 INFO kablam! 
Oct 12 12:35:44.322 INFO kablam! warning: method is never used: `f1`
Oct 12 12:35:44.322 INFO kablam!   --> src/memo1.rs:23:5
Oct 12 12:35:44.322 INFO kablam!    |
Oct 12 12:35:44.322 INFO kablam! 23 |     fn f1(&self) -> &S1 {
Oct 12 12:35:44.322 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Oct 12 12:35:44.322 INFO kablam! 
Oct 12 12:35:44.491 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Oct 12 12:35:44.494 INFO kablam! su: No module specific data is present
Oct 12 12:35:46.088 INFO running `"docker" "rm" "-f" "008c9bd783be50ca096c7f5169d96ade16de08d23152fb735b520226b7bc4ab2"`
Oct 12 12:35:46.356 INFO blam! 008c9bd783be50ca096c7f5169d96ade16de08d23152fb735b520226b7bc4ab2