Dec 05 10:37:42.286 INFO checking mascheroni-0.2.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 10:37:42.286 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 10:37:42.577 INFO [stdout] 1a3c6691b88b6842971393f6fa72ab164908b2af41863d4607ea5586fd5d101b
Dec 05 10:37:42.582 INFO running `"docker" "start" "-a" "1a3c6691b88b6842971393f6fa72ab164908b2af41863d4607ea5586fd5d101b"`
Dec 05 10:37:42.976 INFO [stderr] usermod: no changes
Dec 05 10:37:43.003 INFO [stderr]     Checking mascheroni v0.2.0 (/source)
Dec 05 10:37:43.560 INFO [stderr] warning: unused variable: `ret`
Dec 05 10:37:43.560 INFO [stderr]   --> src/lib.rs:40:13
Dec 05 10:37:43.560 INFO [stderr]    |
Dec 05 10:37:43.560 INFO [stderr] 40 |     let mut ret: u64 = 0;
Dec 05 10:37:43.560 INFO [stderr]    |             ^^^ help: consider using `_ret` instead
Dec 05 10:37:43.560 INFO [stderr]    |
Dec 05 10:37:43.560 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 10:37:43.560 INFO [stderr] 
Dec 05 10:37:43.566 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:37:43.566 INFO [stderr]   --> src/lib.rs:40:9
Dec 05 10:37:43.566 INFO [stderr]    |
Dec 05 10:37:43.566 INFO [stderr] 40 |     let mut ret: u64 = 0;
Dec 05 10:37:43.566 INFO [stderr]    |         ----^^^
Dec 05 10:37:43.566 INFO [stderr]    |         |
Dec 05 10:37:43.566 INFO [stderr]    |         help: remove this `mut`
Dec 05 10:37:43.566 INFO [stderr]    |
Dec 05 10:37:43.566 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 10:37:43.566 INFO [stderr] 
Dec 05 10:37:43.573 INFO [stderr] warning: function is never used: `test_is_not_palindrome`
Dec 05 10:37:43.573 INFO [stderr]    --> src/lib.rs:112:1
Dec 05 10:37:43.573 INFO [stderr]     |
Dec 05 10:37:43.573 INFO [stderr] 112 | fn test_is_not_palindrome() {
Dec 05 10:37:43.573 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:37:43.573 INFO [stderr]     |
Dec 05 10:37:43.573 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 05 10:37:43.573 INFO [stderr] 
Dec 05 10:37:43.778 INFO [stderr] warning: unused variable: `ret`
Dec 05 10:37:43.778 INFO [stderr]   --> src/lib.rs:40:13
Dec 05 10:37:43.778 INFO [stderr]    |
Dec 05 10:37:43.778 INFO [stderr] 40 |     let mut ret: u64 = 0;
Dec 05 10:37:43.778 INFO [stderr]    |             ^^^ help: consider using `_ret` instead
Dec 05 10:37:43.778 INFO [stderr]    |
Dec 05 10:37:43.778 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 10:37:43.778 INFO [stderr] 
Dec 05 10:37:43.783 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:37:43.783 INFO [stderr]   --> src/lib.rs:40:9
Dec 05 10:37:43.783 INFO [stderr]    |
Dec 05 10:37:43.783 INFO [stderr] 40 |     let mut ret: u64 = 0;
Dec 05 10:37:43.783 INFO [stderr]    |         ----^^^
Dec 05 10:37:43.783 INFO [stderr]    |         |
Dec 05 10:37:43.783 INFO [stderr]    |         help: remove this `mut`
Dec 05 10:37:43.783 INFO [stderr]    |
Dec 05 10:37:43.783 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 10:37:43.783 INFO [stderr] 
Dec 05 10:37:43.794 INFO [stderr] warning: function is never used: `test_is_not_palindrome`
Dec 05 10:37:43.794 INFO [stderr]    --> src/lib.rs:112:1
Dec 05 10:37:43.794 INFO [stderr]     |
Dec 05 10:37:43.794 INFO [stderr] 112 | fn test_is_not_palindrome() {
Dec 05 10:37:43.794 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:37:43.794 INFO [stderr]     |
Dec 05 10:37:43.794 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 05 10:37:43.794 INFO [stderr] 
Dec 05 10:37:43.814 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Dec 05 10:37:43.816 INFO [stderr] su: No module specific data is present
Dec 05 10:37:44.648 INFO running `"docker" "inspect" "1a3c6691b88b6842971393f6fa72ab164908b2af41863d4607ea5586fd5d101b"`
Dec 05 10:37:45.063 INFO running `"docker" "rm" "-f" "1a3c6691b88b6842971393f6fa72ab164908b2af41863d4607ea5586fd5d101b"`
Dec 05 10:37:45.323 INFO [stdout] 1a3c6691b88b6842971393f6fa72ab164908b2af41863d4607ea5586fd5d101b