Dec 18 13:42:28.773 INFO checking nes-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:42:28.773 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/nes/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 13:42:29.012 INFO [stdout] a0fb4fa29fa7c3ee9c6e8553eccc0faff37540959fa15bc410ecd0584e6ebe89
Dec 18 13:42:29.018 INFO running `"docker" "start" "-a" "a0fb4fa29fa7c3ee9c6e8553eccc0faff37540959fa15bc410ecd0584e6ebe89"`
Dec 18 13:42:30.377 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 18 13:42:30.384 INFO [stderr]     Checking nes v0.1.1 (/opt/crater/workdir)
Dec 18 13:42:31.196 INFO [stderr] warning: unused variable: `file_name`
Dec 18 13:42:31.196 INFO [stderr]   --> examples/example.rs:75:47
Dec 18 13:42:31.196 INFO [stderr]    |
Dec 18 13:42:31.196 INFO [stderr] 75 |         Err(CommonError::IncorrectExtension(_,file_name, extension)) => println!("incorrect extension {}",extension),
Dec 18 13:42:31.196 INFO [stderr]    |                                               ^^^^^^^^^ help: consider using `_file_name` instead
Dec 18 13:42:31.196 INFO [stderr]    |
Dec 18 13:42:31.196 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 13:42:31.196 INFO [stderr] 
Dec 18 13:42:31.196 INFO [stderr] warning: unused variable: `io_error`
Dec 18 13:42:31.196 INFO [stderr]   --> examples/example.rs:78:86
Dec 18 13:42:31.196 INFO [stderr]    |
Dec 18 13:42:31.196 INFO [stderr] 78 |                 CommonError::ReadFileError(_, box ReadFileError::ReadFileError(_,ref io_error, ref file)) => println!("can not read file \"{}\"",file),
Dec 18 13:42:31.196 INFO [stderr]    |                                                                                      ^^^^^^^^ help: consider using `_io_error` instead
Dec 18 13:42:31.196 INFO [stderr] 
Dec 18 13:42:31.352 INFO [stderr] warning: unused import: `RwLock`
Dec 18 13:42:31.352 INFO [stderr]  --> examples/lock.rs:7:27
Dec 18 13:42:31.352 INFO [stderr]   |
Dec 18 13:42:31.352 INFO [stderr] 7 | use std::sync::{Mutex,Arc,RwLock};
Dec 18 13:42:31.352 INFO [stderr]   |                           ^^^^^^
Dec 18 13:42:31.352 INFO [stderr]   |
Dec 18 13:42:31.352 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 13:42:31.352 INFO [stderr] 
Dec 18 13:42:31.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:42:31.432 INFO [stderr]   --> examples/lock.rs:44:5
Dec 18 13:42:31.432 INFO [stderr]    |
Dec 18 13:42:31.432 INFO [stderr] 44 |     join_handle.join();
Dec 18 13:42:31.432 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 18 13:42:31.432 INFO [stderr]    |
Dec 18 13:42:31.432 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 13:42:31.433 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:42:31.433 INFO [stderr] 
Dec 18 13:42:31.496 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
Dec 18 13:42:32.280 INFO running `"docker" "inspect" "a0fb4fa29fa7c3ee9c6e8553eccc0faff37540959fa15bc410ecd0584e6ebe89"`
Dec 18 13:42:32.586 INFO running `"docker" "rm" "-f" "a0fb4fa29fa7c3ee9c6e8553eccc0faff37540959fa15bc410ecd0584e6ebe89"`
Dec 18 13:42:32.976 INFO [stdout] a0fb4fa29fa7c3ee9c6e8553eccc0faff37540959fa15bc410ecd0584e6ebe89