Dec 04 08:59:55.429 INFO checking taskie/rust-memo against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 08:59:55.429 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 08:59:56.087 INFO [stdout] 1baf8d8a314720b9cc7bb89255bdc7346221e0e07d7b211c1507b529b7f7d0e9
Dec 04 08:59:56.089 INFO running `"docker" "start" "-a" "1baf8d8a314720b9cc7bb89255bdc7346221e0e07d7b211c1507b529b7f7d0e9"`
Dec 04 08:59:57.782 INFO [stderr] usermod: no changes
Dec 04 08:59:57.827 INFO [stderr]     Checking memo v0.1.0 (/source)
Dec 04 08:59:58.039 INFO [stderr] warning: struct is never constructed: `S2_1`
Dec 04 08:59:58.039 INFO [stderr]  --> src/memo1.rs:5:1
Dec 04 08:59:58.039 INFO [stderr]   |
Dec 04 08:59:58.039 INFO [stderr] 5 | struct S2_1 { s1: Option<S1> }
Dec 04 08:59:58.039 INFO [stderr]   | ^^^^^^^^^^^
Dec 04 08:59:58.039 INFO [stderr]   |
Dec 04 08:59:58.039 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 08:59:58.039 INFO [stderr] 
Dec 04 08:59:58.039 INFO [stderr] warning: struct is never constructed: `S2_2`
Dec 04 08:59:58.039 INFO [stderr]  --> src/memo1.rs:8:1
Dec 04 08:59:58.039 INFO [stderr]   |
Dec 04 08:59:58.039 INFO [stderr] 8 | struct S2_2<'a> { s1: Option<&'a S1> }
Dec 04 08:59:58.039 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 04 08:59:58.039 INFO [stderr] 
Dec 04 08:59:58.039 INFO [stderr] warning: method is never used: `f1`
Dec 04 08:59:58.039 INFO [stderr]   --> src/memo1.rs:16:5
Dec 04 08:59:58.039 INFO [stderr]    |
Dec 04 08:59:58.039 INFO [stderr] 16 |     fn f1(&self) -> S1 {
Dec 04 08:59:58.039 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 04 08:59:58.039 INFO [stderr] 
Dec 04 08:59:58.039 INFO [stderr] warning: method is never used: `f1`
Dec 04 08:59:58.039 INFO [stderr]   --> src/memo1.rs:23:5
Dec 04 08:59:58.039 INFO [stderr]    |
Dec 04 08:59:58.039 INFO [stderr] 23 |     fn f1(&self) -> &S1 {
Dec 04 08:59:58.039 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 04 08:59:58.039 INFO [stderr] 
Dec 04 08:59:58.343 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Dec 04 08:59:58.343 INFO [stderr] su: No module specific data is present
Dec 04 08:59:59.352 INFO running `"docker" "inspect" "1baf8d8a314720b9cc7bb89255bdc7346221e0e07d7b211c1507b529b7f7d0e9"`
Dec 04 08:59:59.617 INFO running `"docker" "rm" "-f" "1baf8d8a314720b9cc7bb89255bdc7346221e0e07d7b211c1507b529b7f7d0e9"`
Dec 04 08:59:59.920 INFO [stdout] 1baf8d8a314720b9cc7bb89255bdc7346221e0e07d7b211c1507b529b7f7d0e9