Oct 12 12:35:46.437 INFO checking taskie/rust-memo against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 12:35:46.438 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/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 12:35:46.933 INFO blam! afc4aef5fdf7520746cb33b46d94eb6d16e41e949f38492905e675a5da5df28f
Oct 12 12:35:46.935 INFO running `"docker" "start" "-a" "afc4aef5fdf7520746cb33b46d94eb6d16e41e949f38492905e675a5da5df28f"`
Oct 12 12:35:48.945 INFO kablam! usermod: no changes
Oct 12 12:35:48.986 INFO kablam!     Checking memo v0.1.0 (/source)
Oct 12 12:35:49.388 INFO kablam! warning: struct is never constructed: `S2_1`
Oct 12 12:35:49.388 INFO kablam!  --> src/memo1.rs:5:1
Oct 12 12:35:49.388 INFO kablam!   |
Oct 12 12:35:49.388 INFO kablam! 5 | struct S2_1 { s1: Option<S1> }
Oct 12 12:35:49.388 INFO kablam!   | ^^^^^^^^^^^
Oct 12 12:35:49.396 INFO kablam!   |
Oct 12 12:35:49.397 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 12:35:49.397 INFO kablam! 
Oct 12 12:35:49.397 INFO kablam! warning: struct is never constructed: `S2_2`
Oct 12 12:35:49.397 INFO kablam!  --> src/memo1.rs:8:1
Oct 12 12:35:49.397 INFO kablam!   |
Oct 12 12:35:49.397 INFO kablam! 8 | struct S2_2<'a> { s1: Option<&'a S1> }
Oct 12 12:35:49.397 INFO kablam!   | ^^^^^^^^^^^^^^^
Oct 12 12:35:49.397 INFO kablam! 
Oct 12 12:35:49.397 INFO kablam! warning: method is never used: `f1`
Oct 12 12:35:49.397 INFO kablam!   --> src/memo1.rs:16:5
Oct 12 12:35:49.397 INFO kablam!    |
Oct 12 12:35:49.397 INFO kablam! 16 |     fn f1(&self) -> S1 {
Oct 12 12:35:49.397 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Oct 12 12:35:49.397 INFO kablam! 
Oct 12 12:35:49.400 INFO kablam! warning: method is never used: `f1`
Oct 12 12:35:49.400 INFO kablam!   --> src/memo1.rs:23:5
Oct 12 12:35:49.400 INFO kablam!    |
Oct 12 12:35:49.400 INFO kablam! 23 |     fn f1(&self) -> &S1 {
Oct 12 12:35:49.400 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Oct 12 12:35:49.400 INFO kablam! 
Oct 12 12:35:49.528 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Oct 12 12:35:49.530 INFO kablam! su: No module specific data is present
Oct 12 12:35:51.001 INFO running `"docker" "rm" "-f" "afc4aef5fdf7520746cb33b46d94eb6d16e41e949f38492905e675a5da5df28f"`
Oct 12 12:35:51.360 INFO blam! afc4aef5fdf7520746cb33b46d94eb6d16e41e949f38492905e675a5da5df28f