Dec 11 08:37:51.639 INFO checking suelz/ch6 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 08:37:51.639 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 08:37:51.894 INFO [stdout] 4f2e0eeda1784442191db8d16b2c93eae329207aeb02d696dd6a2c0295f71a4d
Dec 11 08:37:51.894 INFO running `"docker" "start" "-a" "4f2e0eeda1784442191db8d16b2c93eae329207aeb02d696dd6a2c0295f71a4d"`
Dec 11 08:37:52.481 INFO [stderr] usermod: no changes
Dec 11 08:37:52.520 INFO [stderr]     Checking ch6 v0.1.0 (/source)
Dec 11 08:37:52.753 INFO [stderr] warning: unused variable: `six`
Dec 11 08:37:52.753 INFO [stderr]   --> src/main.rs:12:9
Dec 11 08:37:52.753 INFO [stderr]    |
Dec 11 08:37:52.753 INFO [stderr] 12 |     let six = plus_one(five);
Dec 11 08:37:52.753 INFO [stderr]    |         ^^^ help: consider using `_six` instead
Dec 11 08:37:52.753 INFO [stderr]    |
Dec 11 08:37:52.753 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 08:37:52.753 INFO [stderr] 
Dec 11 08:37:52.753 INFO [stderr] warning: unused variable: `none`
Dec 11 08:37:52.753 INFO [stderr]   --> src/main.rs:13:9
Dec 11 08:37:52.753 INFO [stderr]    |
Dec 11 08:37:52.753 INFO [stderr] 13 |     let none = plus_one(None);
Dec 11 08:37:52.753 INFO [stderr]    |         ^^^^ help: consider using `_none` instead
Dec 11 08:37:52.753 INFO [stderr] 
Dec 11 08:37:52.753 INFO [stderr] warning: enum is never used: `Coin`
Dec 11 08:37:52.753 INFO [stderr]  --> src/main.rs:2:1
Dec 11 08:37:52.753 INFO [stderr]   |
Dec 11 08:37:52.753 INFO [stderr] 2 | enum Coin{
Dec 11 08:37:52.753 INFO [stderr]   | ^^^^^^^^^
Dec 11 08:37:52.753 INFO [stderr]   |
Dec 11 08:37:52.753 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 08:37:52.753 INFO [stderr] 
Dec 11 08:37:52.753 INFO [stderr] warning: function is never used: `value_in_cents`
Dec 11 08:37:52.753 INFO [stderr]   --> src/main.rs:56:1
Dec 11 08:37:52.753 INFO [stderr]    |
Dec 11 08:37:52.753 INFO [stderr] 56 | fn value_in_cents(coin: Coin) ->u32{
Dec 11 08:37:52.753 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:37:52.753 INFO [stderr] 
Dec 11 08:37:52.806 INFO [stderr] warning: unused variable: `six`
Dec 11 08:37:52.806 INFO [stderr]   --> src/main.rs:12:9
Dec 11 08:37:52.806 INFO [stderr]    |
Dec 11 08:37:52.806 INFO [stderr] 12 |     let six = plus_one(five);
Dec 11 08:37:52.806 INFO [stderr]    |         ^^^ help: consider using `_six` instead
Dec 11 08:37:52.806 INFO [stderr]    |
Dec 11 08:37:52.806 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 08:37:52.806 INFO [stderr] 
Dec 11 08:37:52.806 INFO [stderr] warning: unused variable: `none`
Dec 11 08:37:52.806 INFO [stderr]   --> src/main.rs:13:9
Dec 11 08:37:52.806 INFO [stderr]    |
Dec 11 08:37:52.806 INFO [stderr] 13 |     let none = plus_one(None);
Dec 11 08:37:52.806 INFO [stderr]    |         ^^^^ help: consider using `_none` instead
Dec 11 08:37:52.806 INFO [stderr] 
Dec 11 08:37:52.812 INFO [stderr] warning: enum is never used: `Coin`
Dec 11 08:37:52.812 INFO [stderr]  --> src/main.rs:2:1
Dec 11 08:37:52.812 INFO [stderr]   |
Dec 11 08:37:52.812 INFO [stderr] 2 | enum Coin{
Dec 11 08:37:52.812 INFO [stderr]   | ^^^^^^^^^
Dec 11 08:37:52.812 INFO [stderr]   |
Dec 11 08:37:52.812 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 08:37:52.812 INFO [stderr] 
Dec 11 08:37:52.812 INFO [stderr] warning: function is never used: `value_in_cents`
Dec 11 08:37:52.812 INFO [stderr]   --> src/main.rs:56:1
Dec 11 08:37:52.812 INFO [stderr]    |
Dec 11 08:37:52.812 INFO [stderr] 56 | fn value_in_cents(coin: Coin) ->u32{
Dec 11 08:37:52.812 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:37:52.812 INFO [stderr] 
Dec 11 08:37:52.817 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
Dec 11 08:37:52.823 INFO [stderr] su: No module specific data is present
Dec 11 08:37:53.172 INFO running `"docker" "inspect" "4f2e0eeda1784442191db8d16b2c93eae329207aeb02d696dd6a2c0295f71a4d"`
Dec 11 08:37:53.352 INFO running `"docker" "rm" "-f" "4f2e0eeda1784442191db8d16b2c93eae329207aeb02d696dd6a2c0295f71a4d"`
Dec 11 08:37:53.608 INFO [stdout] 4f2e0eeda1784442191db8d16b2c93eae329207aeb02d696dd6a2c0295f71a4d