Dec 12 00:18:35.695 INFO checking SilvM/rust_app against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 00:18:35.695 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 12 00:18:36.422 INFO [stdout] b3d5cc612631298e80fde7e759c65a605cf4d74798673c98a894b1651f4b3e06
Dec 12 00:18:36.424 INFO running `"docker" "start" "-a" "b3d5cc612631298e80fde7e759c65a605cf4d74798673c98a894b1651f4b3e06"`
Dec 12 00:18:39.091 INFO [stderr] usermod: no changes
Dec 12 00:18:39.285 INFO [stderr]     Checking env_logger v0.6.0
Dec 12 00:18:40.976 INFO [stderr]     Checking tenx_exercise v0.1.0 (/source)
Dec 12 00:18:42.704 INFO [stderr] warning: unused variable: `values`
Dec 12 00:18:42.704 INFO [stderr]   --> src/main.rs:14:17
Dec 12 00:18:42.704 INFO [stderr]    |
Dec 12 00:18:42.704 INFO [stderr] 14 | fn exchange_req(values : Vec<&str>) {
Dec 12 00:18:42.704 INFO [stderr]    |                 ^^^^^^ help: consider using `_values` instead
Dec 12 00:18:42.705 INFO [stderr]    |
Dec 12 00:18:42.705 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 00:18:42.705 INFO [stderr] 
Dec 12 00:18:42.707 INFO [stderr] warning: variable does not need to be mutable
Dec 12 00:18:42.707 INFO [stderr]   --> src/main.rs:16:9
Dec 12 00:18:42.707 INFO [stderr]    |
Dec 12 00:18:42.707 INFO [stderr] 16 |     let mut list = String::new();
Dec 12 00:18:42.707 INFO [stderr]    |         ----^^^^
Dec 12 00:18:42.707 INFO [stderr]    |         |
Dec 12 00:18:42.707 INFO [stderr]    |         help: remove this `mut`
Dec 12 00:18:42.707 INFO [stderr]    |
Dec 12 00:18:42.707 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 00:18:42.708 INFO [stderr] 
Dec 12 00:18:42.900 INFO [stderr] warning: unused variable: `values`
Dec 12 00:18:42.900 INFO [stderr]   --> src/main.rs:14:17
Dec 12 00:18:42.900 INFO [stderr]    |
Dec 12 00:18:42.900 INFO [stderr] 14 | fn exchange_req(values : Vec<&str>) {
Dec 12 00:18:42.900 INFO [stderr]    |                 ^^^^^^ help: consider using `_values` instead
Dec 12 00:18:42.900 INFO [stderr]    |
Dec 12 00:18:42.900 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 00:18:42.900 INFO [stderr] 
Dec 12 00:18:42.903 INFO [stderr] warning: variable does not need to be mutable
Dec 12 00:18:42.903 INFO [stderr]   --> src/main.rs:16:9
Dec 12 00:18:42.903 INFO [stderr]    |
Dec 12 00:18:42.903 INFO [stderr] 16 |     let mut list = String::new();
Dec 12 00:18:42.903 INFO [stderr]    |         ----^^^^
Dec 12 00:18:42.903 INFO [stderr]    |         |
Dec 12 00:18:42.903 INFO [stderr]    |         help: remove this `mut`
Dec 12 00:18:42.903 INFO [stderr]    |
Dec 12 00:18:42.903 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 00:18:42.903 INFO [stderr] 
Dec 12 00:18:42.952 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.82s
Dec 12 00:18:42.956 INFO [stderr] su: No module specific data is present
Dec 12 00:18:44.350 INFO running `"docker" "inspect" "b3d5cc612631298e80fde7e759c65a605cf4d74798673c98a894b1651f4b3e06"`
Dec 12 00:18:44.736 INFO running `"docker" "rm" "-f" "b3d5cc612631298e80fde7e759c65a605cf4d74798673c98a894b1651f4b3e06"`
Dec 12 00:18:45.064 INFO [stdout] b3d5cc612631298e80fde7e759c65a605cf4d74798673c98a894b1651f4b3e06