Dec 12 11:01:21.290 INFO checking nes-0.1.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 11:01:21.291 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 12 11:01:21.810 INFO [stdout] 9f39d7293e9cda134e1082e9217e4cb3c63594490ffdba53bd9067412e521f76
Dec 12 11:01:21.812 INFO running `"docker" "start" "-a" "9f39d7293e9cda134e1082e9217e4cb3c63594490ffdba53bd9067412e521f76"`
Dec 12 11:01:23.315 INFO [stderr] usermod: no changes
Dec 12 11:01:23.364 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 12 11:01:23.364 INFO [stderr]     Checking nes v0.1.1 (/source)
Dec 12 11:01:25.224 INFO [stderr] warning: unused import: `RwLock`
Dec 12 11:01:25.224 INFO [stderr]  --> examples/lock.rs:7:27
Dec 12 11:01:25.224 INFO [stderr]   |
Dec 12 11:01:25.224 INFO [stderr] 7 | use std::sync::{Mutex,Arc,RwLock};
Dec 12 11:01:25.224 INFO [stderr]   |                           ^^^^^^
Dec 12 11:01:25.224 INFO [stderr]   |
Dec 12 11:01:25.224 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 11:01:25.224 INFO [stderr] 
Dec 12 11:01:25.249 INFO [stderr] warning: unused variable: `file_name`
Dec 12 11:01:25.250 INFO [stderr]   --> examples/example.rs:75:47
Dec 12 11:01:25.250 INFO [stderr]    |
Dec 12 11:01:25.250 INFO [stderr] 75 |         Err(CommonError::IncorrectExtension(_,file_name, extension)) => println!("incorrect extension {}",extension),
Dec 12 11:01:25.250 INFO [stderr]    |                                               ^^^^^^^^^ help: consider using `_file_name` instead
Dec 12 11:01:25.251 INFO [stderr]    |
Dec 12 11:01:25.251 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 11:01:25.251 INFO [stderr] 
Dec 12 11:01:25.251 INFO [stderr] warning: unused variable: `io_error`
Dec 12 11:01:25.251 INFO [stderr]   --> examples/example.rs:78:86
Dec 12 11:01:25.252 INFO [stderr]    |
Dec 12 11:01:25.252 INFO [stderr] 78 |                 CommonError::ReadFileError(_, box ReadFileError::ReadFileError(_,ref io_error, ref file)) => println!("can not read file \"{}\"",file),
Dec 12 11:01:25.252 INFO [stderr]    |                                                                                      ^^^^^^^^ help: consider using `_io_error` instead
Dec 12 11:01:25.252 INFO [stderr] 
Dec 12 11:01:25.347 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 11:01:25.347 INFO [stderr]   --> examples/lock.rs:44:5
Dec 12 11:01:25.347 INFO [stderr]    |
Dec 12 11:01:25.348 INFO [stderr] 44 |     join_handle.join();
Dec 12 11:01:25.348 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 12 11:01:25.348 INFO [stderr]    |
Dec 12 11:01:25.349 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 11:01:25.349 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 11:01:25.349 INFO [stderr] 
Dec 12 11:01:25.397 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
Dec 12 11:01:25.400 INFO [stderr] su: No module specific data is present
Dec 12 11:01:26.258 INFO running `"docker" "inspect" "9f39d7293e9cda134e1082e9217e4cb3c63594490ffdba53bd9067412e521f76"`
Dec 12 11:01:26.518 INFO running `"docker" "rm" "-f" "9f39d7293e9cda134e1082e9217e4cb3c63594490ffdba53bd9067412e521f76"`
Dec 12 11:01:26.712 INFO [stdout] 9f39d7293e9cda134e1082e9217e4cb3c63594490ffdba53bd9067412e521f76