Dec 11 10:38:06.423 INFO checking rtalwar26/rust-playground against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 10:38:06.423 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 10:38:06.934 INFO [stdout] 0694ae5cca8fbe2267d257c94a4feb88e769fc9b8965592f6f17bc7979a9bdb7
Dec 11 10:38:06.936 INFO running `"docker" "start" "-a" "0694ae5cca8fbe2267d257c94a4feb88e769fc9b8965592f6f17bc7979a9bdb7"`
Dec 11 10:38:07.894 INFO [stderr] usermod: no changes
Dec 11 10:38:07.964 INFO [stderr]     Checking myrust v0.1.0 (/source)
Dec 11 10:38:08.276 INFO [stderr] warning: unused variable: `d`
Dec 11 10:38:08.276 INFO [stderr]   --> src/main.rs:35:8
Dec 11 10:38:08.276 INFO [stderr]    |
Dec 11 10:38:08.276 INFO [stderr] 35 |    let d = models::dog();
Dec 11 10:38:08.276 INFO [stderr]    |        ^ help: consider using `_d` instead
Dec 11 10:38:08.276 INFO [stderr]    |
Dec 11 10:38:08.277 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 10:38:08.277 INFO [stderr] 
Dec 11 10:38:08.277 INFO [stderr] warning: unused variable: `t`
Dec 11 10:38:08.277 INFO [stderr]    --> src/main.rs:106:9
Dec 11 10:38:08.277 INFO [stderr]     |
Dec 11 10:38:08.277 INFO [stderr] 106 |     let t: Rc<String> = s.clone();
Dec 11 10:38:08.277 INFO [stderr]     |         ^ help: consider using `_t` instead
Dec 11 10:38:08.277 INFO [stderr] 
Dec 11 10:38:08.277 INFO [stderr] warning: unused variable: `u`
Dec 11 10:38:08.277 INFO [stderr]    --> src/main.rs:107:9
Dec 11 10:38:08.277 INFO [stderr]     |
Dec 11 10:38:08.277 INFO [stderr] 107 |     let u = s.clone();
Dec 11 10:38:08.277 INFO [stderr]     |         ^ help: consider using `_u` instead
Dec 11 10:38:08.277 INFO [stderr] 
Dec 11 10:38:08.404 INFO [stderr] warning: unused variable: `d`
Dec 11 10:38:08.404 INFO [stderr]   --> src/main.rs:35:8
Dec 11 10:38:08.404 INFO [stderr]    |
Dec 11 10:38:08.404 INFO [stderr] 35 |    let d = models::dog();
Dec 11 10:38:08.404 INFO [stderr]    |        ^ help: consider using `_d` instead
Dec 11 10:38:08.404 INFO [stderr]    |
Dec 11 10:38:08.404 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 10:38:08.404 INFO [stderr] 
Dec 11 10:38:08.404 INFO [stderr] warning: unused variable: `t`
Dec 11 10:38:08.404 INFO [stderr]    --> src/main.rs:106:9
Dec 11 10:38:08.404 INFO [stderr]     |
Dec 11 10:38:08.404 INFO [stderr] 106 |     let t: Rc<String> = s.clone();
Dec 11 10:38:08.404 INFO [stderr]     |         ^ help: consider using `_t` instead
Dec 11 10:38:08.404 INFO [stderr] 
Dec 11 10:38:08.404 INFO [stderr] warning: unused variable: `u`
Dec 11 10:38:08.404 INFO [stderr]    --> src/main.rs:107:9
Dec 11 10:38:08.404 INFO [stderr]     |
Dec 11 10:38:08.404 INFO [stderr] 107 |     let u = s.clone();
Dec 11 10:38:08.404 INFO [stderr]     |         ^ help: consider using `_u` instead
Dec 11 10:38:08.404 INFO [stderr] 
Dec 11 10:38:08.440 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Dec 11 10:38:08.440 INFO [stderr] su: No module specific data is present
Dec 11 10:38:09.082 INFO running `"docker" "inspect" "0694ae5cca8fbe2267d257c94a4feb88e769fc9b8965592f6f17bc7979a9bdb7"`
Dec 11 10:38:09.508 INFO running `"docker" "rm" "-f" "0694ae5cca8fbe2267d257c94a4feb88e769fc9b8965592f6f17bc7979a9bdb7"`
Dec 11 10:38:09.780 INFO [stdout] 0694ae5cca8fbe2267d257c94a4feb88e769fc9b8965592f6f17bc7979a9bdb7