Dec 04 10:14:49.376 INFO checking shoul/rust_tutorial against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 10:14:49.376 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 04 10:14:49.843 INFO [stdout] 3c1309a80a53a6cda9bb669f098b33f86d04daa724a98105a77d54e51d451c24
Dec 04 10:14:49.851 INFO running `"docker" "start" "-a" "3c1309a80a53a6cda9bb669f098b33f86d04daa724a98105a77d54e51d451c24"`
Dec 04 10:14:51.639 INFO [stderr] usermod: no changes
Dec 04 10:14:51.743 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 04 10:14:51.743 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 04 10:14:51.743 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 04 10:14:51.743 INFO [stderr] files will be included as a binary target:
Dec 04 10:14:51.743 INFO [stderr] 
Dec 04 10:14:51.743 INFO [stderr] * /source/src/main.rs
Dec 04 10:14:51.743 INFO [stderr] 
Dec 04 10:14:51.743 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 04 10:14:51.743 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 04 10:14:51.743 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 04 10:14:51.743 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 04 10:14:51.743 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 04 10:14:51.743 INFO [stderr] 
Dec 04 10:14:51.743 INFO [stderr] For more information on this warning you can consult
Dec 04 10:14:51.743 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 04 10:14:51.747 INFO [stderr]     Checking rust_tutorial v0.1.0 (/source)
Dec 04 10:14:53.387 INFO [stderr] warning: unused variable: `v2`
Dec 04 10:14:53.387 INFO [stderr]   --> src/ownership.rs:37:9
Dec 04 10:14:53.387 INFO [stderr]    |
Dec 04 10:14:53.387 INFO [stderr] 37 |     let v2 = v;
Dec 04 10:14:53.387 INFO [stderr]    |         ^^ help: consider using `_v2` instead
Dec 04 10:14:53.387 INFO [stderr]    |
Dec 04 10:14:53.387 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 10:14:53.387 INFO [stderr] 
Dec 04 10:14:53.439 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:14:53.439 INFO [stderr]   --> src/ownership.rs:60:9
Dec 04 10:14:53.439 INFO [stderr]    |
Dec 04 10:14:53.439 INFO [stderr] 60 |     let mut b = a;
Dec 04 10:14:53.439 INFO [stderr]    |         ----^
Dec 04 10:14:53.439 INFO [stderr]    |         |
Dec 04 10:14:53.439 INFO [stderr]    |         help: remove this `mut`
Dec 04 10:14:53.439 INFO [stderr]    |
Dec 04 10:14:53.439 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 10:14:53.439 INFO [stderr] 
Dec 04 10:14:53.487 INFO [stderr] warning: unused variable: `j`
Dec 04 10:14:53.487 INFO [stderr]   --> src/vectors.rs:34:6
Dec 04 10:14:53.487 INFO [stderr]    |
Dec 04 10:14:53.487 INFO [stderr] 34 |     let j: i32 = 0;
Dec 04 10:14:53.487 INFO [stderr]    |         ^ help: consider using `_j` instead
Dec 04 10:14:53.487 INFO [stderr]    |
Dec 04 10:14:53.487 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 10:14:53.487 INFO [stderr] 
Dec 04 10:14:53.630 INFO [stderr] warning: unused variable: `v2`
Dec 04 10:14:53.630 INFO [stderr]   --> src/ownership.rs:37:9
Dec 04 10:14:53.630 INFO [stderr]    |
Dec 04 10:14:53.630 INFO [stderr] 37 |     let v2 = v;
Dec 04 10:14:53.630 INFO [stderr]    |         ^^ help: consider using `_v2` instead
Dec 04 10:14:53.655 INFO [stderr]    |
Dec 04 10:14:53.655 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 10:14:53.655 INFO [stderr] 
Dec 04 10:14:53.697 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:14:53.697 INFO [stderr]   --> src/ownership.rs:60:9
Dec 04 10:14:53.697 INFO [stderr]    |
Dec 04 10:14:53.697 INFO [stderr] 60 |     let mut b = a;
Dec 04 10:14:53.697 INFO [stderr]    |         ----^
Dec 04 10:14:53.697 INFO [stderr]    |         |
Dec 04 10:14:53.697 INFO [stderr]    |         help: remove this `mut`
Dec 04 10:14:53.697 INFO [stderr]    |
Dec 04 10:14:53.697 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 10:14:53.698 INFO [stderr] 
Dec 04 10:14:54.130 INFO [stderr] warning: unused variable: `j`
Dec 04 10:14:54.130 INFO [stderr]   --> src/vectors.rs:34:6
Dec 04 10:14:54.130 INFO [stderr]    |
Dec 04 10:14:54.130 INFO [stderr] 34 |     let j: i32 = 0;
Dec 04 10:14:54.130 INFO [stderr]    |         ^ help: consider using `_j` instead
Dec 04 10:14:54.130 INFO [stderr]    |
Dec 04 10:14:54.130 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 10:14:54.130 INFO [stderr] 
Dec 04 10:14:54.211 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.53s
Dec 04 10:14:54.222 INFO [stderr] su: No module specific data is present
Dec 04 10:14:55.347 INFO running `"docker" "inspect" "3c1309a80a53a6cda9bb669f098b33f86d04daa724a98105a77d54e51d451c24"`
Dec 04 10:14:55.641 INFO running `"docker" "rm" "-f" "3c1309a80a53a6cda9bb669f098b33f86d04daa724a98105a77d54e51d451c24"`
Dec 04 10:14:55.948 INFO [stdout] 3c1309a80a53a6cda9bb669f098b33f86d04daa724a98105a77d54e51d451c24