Dec 11 16:26:30.781 INFO checking jetilling/rust_example against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:26:30.781 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 16:26:31.248 INFO [stdout] 81433df28baec7a7fc7db7addc305c9f80e48ac66bfb7a0cc51d11bf1727de8d
Dec 11 16:26:31.256 INFO running `"docker" "start" "-a" "81433df28baec7a7fc7db7addc305c9f80e48ac66bfb7a0cc51d11bf1727de8d"`
Dec 11 16:26:32.460 INFO [stderr] usermod: no changes
Dec 11 16:26:32.508 INFO [stderr]     Checking rust_example_app v0.1.0 (/source)
Dec 11 16:26:33.024 INFO [stderr] warning: unused variable: `f`
Dec 11 16:26:33.024 INFO [stderr]   --> src/lib.rs:29:28
Dec 11 16:26:33.024 INFO [stderr]    |
Dec 11 16:26:33.024 INFO [stderr] 29 |   pub fn execute<F>(&self, f: F)
Dec 11 16:26:33.024 INFO [stderr]    |                            ^ help: consider using `_f` instead
Dec 11 16:26:33.024 INFO [stderr]    |
Dec 11 16:26:33.024 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:26:33.024 INFO [stderr] 
Dec 11 16:26:33.028 INFO [stderr] warning: field is never used: `workers`
Dec 11 16:26:33.028 INFO [stderr]  --> src/lib.rs:4:3
Dec 11 16:26:33.028 INFO [stderr]   |
Dec 11 16:26:33.028 INFO [stderr] 4 |   workers: Vec<Worker>
Dec 11 16:26:33.028 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
Dec 11 16:26:33.028 INFO [stderr]   |
Dec 11 16:26:33.028 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 16:26:33.028 INFO [stderr] 
Dec 11 16:26:33.028 INFO [stderr] warning: field is never used: `id`
Dec 11 16:26:33.028 INFO [stderr]   --> src/lib.rs:38:3
Dec 11 16:26:33.029 INFO [stderr]    |
Dec 11 16:26:33.029 INFO [stderr] 38 |   id: usize,
Dec 11 16:26:33.029 INFO [stderr]    |   ^^^^^^^^^
Dec 11 16:26:33.029 INFO [stderr] 
Dec 11 16:26:33.029 INFO [stderr] warning: field is never used: `thread`
Dec 11 16:26:33.029 INFO [stderr]   --> src/lib.rs:39:3
Dec 11 16:26:33.029 INFO [stderr]    |
Dec 11 16:26:33.029 INFO [stderr] 39 |   thread: thread::JoinHandle<()>,
Dec 11 16:26:33.029 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:26:33.029 INFO [stderr] 
Dec 11 16:26:33.040 INFO [stderr] warning: unused variable: `f`
Dec 11 16:26:33.041 INFO [stderr]   --> src/lib.rs:29:28
Dec 11 16:26:33.041 INFO [stderr]    |
Dec 11 16:26:33.041 INFO [stderr] 29 |   pub fn execute<F>(&self, f: F)
Dec 11 16:26:33.042 INFO [stderr]    |                            ^ help: consider using `_f` instead
Dec 11 16:26:33.042 INFO [stderr]    |
Dec 11 16:26:33.044 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:26:33.044 INFO [stderr] 
Dec 11 16:26:33.048 INFO [stderr] warning: field is never used: `workers`
Dec 11 16:26:33.049 INFO [stderr]  --> src/lib.rs:4:3
Dec 11 16:26:33.050 INFO [stderr]   |
Dec 11 16:26:33.050 INFO [stderr] 4 |   workers: Vec<Worker>
Dec 11 16:26:33.050 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^
Dec 11 16:26:33.050 INFO [stderr]   |
Dec 11 16:26:33.050 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 16:26:33.050 INFO [stderr] 
Dec 11 16:26:33.051 INFO [stderr] warning: field is never used: `id`
Dec 11 16:26:33.051 INFO [stderr]   --> src/lib.rs:38:3
Dec 11 16:26:33.052 INFO [stderr]    |
Dec 11 16:26:33.052 INFO [stderr] 38 |   id: usize,
Dec 11 16:26:33.052 INFO [stderr]    |   ^^^^^^^^^
Dec 11 16:26:33.052 INFO [stderr] 
Dec 11 16:26:33.052 INFO [stderr] warning: field is never used: `thread`
Dec 11 16:26:33.052 INFO [stderr]   --> src/lib.rs:39:3
Dec 11 16:26:33.052 INFO [stderr]    |
Dec 11 16:26:33.053 INFO [stderr] 39 |   thread: thread::JoinHandle<()>,
Dec 11 16:26:33.053 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:26:33.053 INFO [stderr] 
Dec 11 16:26:33.540 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Dec 11 16:26:33.544 INFO [stderr] su: No module specific data is present
Dec 11 16:26:33.903 INFO running `"docker" "inspect" "81433df28baec7a7fc7db7addc305c9f80e48ac66bfb7a0cc51d11bf1727de8d"`
Dec 11 16:26:34.128 INFO running `"docker" "rm" "-f" "81433df28baec7a7fc7db7addc305c9f80e48ac66bfb7a0cc51d11bf1727de8d"`
Dec 11 16:26:34.301 INFO [stdout] 81433df28baec7a7fc7db7addc305c9f80e48ac66bfb7a0cc51d11bf1727de8d