Nov 07 05:34:17.335 INFO checking CGQAQ/Rust_Learn against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 05:34:17.336 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-2/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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"`
Nov 07 05:34:17.738 INFO blam! b9f1e34c7264d0cb1fccad4e46c784810605fdc722f7fe5b942eaf1e5f223aa3
Nov 07 05:34:17.740 INFO running `"docker" "start" "-a" "b9f1e34c7264d0cb1fccad4e46c784810605fdc722f7fe5b942eaf1e5f223aa3"`
Nov 07 05:34:19.360 INFO kablam! usermod: no changes
Nov 07 05:34:19.424 INFO kablam! warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Nov 07 05:34:19.425 INFO kablam! disables Cargo from automatically inferring other binary targets.
Nov 07 05:34:19.425 INFO kablam! This inference behavior will change in the Rust 2018 edition and the following
Nov 07 05:34:19.425 INFO kablam! files will be included as a binary target:
Nov 07 05:34:19.426 INFO kablam! 
Nov 07 05:34:19.426 INFO kablam! * /source/src/main.rs
Nov 07 05:34:19.426 INFO kablam! 
Nov 07 05:34:19.426 INFO kablam! This is likely to break cargo build or cargo test as these files may not be
Nov 07 05:34:19.427 INFO kablam! ready to be compiled as a binary target today. You can future-proof yourself
Nov 07 05:34:19.427 INFO kablam! and disable this warning by adding `autobins = false` to your [package]
Nov 07 05:34:19.427 INFO kablam! section. You may also move the files to a location where Cargo would not
Nov 07 05:34:19.427 INFO kablam! automatically infer them to be a target, such as in subfolders.
Nov 07 05:34:19.428 INFO kablam! 
Nov 07 05:34:19.428 INFO kablam! For more information on this warning you can consult
Nov 07 05:34:19.428 INFO kablam! https://github.com/rust-lang/cargo/issues/5330
Nov 07 05:34:19.428 INFO kablam! warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`,
Nov 07 05:34:19.428 INFO kablam! please set bin.path in Cargo.toml
Nov 07 05:34:19.428 INFO kablam!     Checking learn v0.1.0 (/source)
Nov 07 05:34:20.800 INFO kablam! warning: variable does not need to be mutable
Nov 07 05:34:20.800 INFO kablam!   --> src/bin/mthread.rs:11:9
Nov 07 05:34:20.800 INFO kablam!    |
Nov 07 05:34:20.800 INFO kablam! 11 |     let mut ptr = Arc::new(Mutex::new("hello world!".chars()));
Nov 07 05:34:20.800 INFO kablam!    |         ----^^^
Nov 07 05:34:20.801 INFO kablam!    |         |
Nov 07 05:34:20.801 INFO kablam!    |         help: remove this `mut`
Nov 07 05:34:20.801 INFO kablam!    |
Nov 07 05:34:20.801 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 07 05:34:20.801 INFO kablam! 
Nov 07 05:34:20.801 INFO kablam! warning: variable does not need to be mutable
Nov 07 05:34:20.801 INFO kablam!   --> src/bin/mthread.rs:27:13
Nov 07 05:34:20.801 INFO kablam!    |
Nov 07 05:34:20.801 INFO kablam! 27 |         let mut ptr = ptr.clone();
Nov 07 05:34:20.801 INFO kablam!    |             ----^^^
Nov 07 05:34:20.801 INFO kablam!    |             |
Nov 07 05:34:20.801 INFO kablam!    |             help: remove this `mut`
Nov 07 05:34:20.801 INFO kablam! 
Nov 07 05:34:20.801 INFO kablam! warning: variable does not need to be mutable
Nov 07 05:34:20.801 INFO kablam!   --> src/bin/mthread.rs:29:13
Nov 07 05:34:20.801 INFO kablam!    |
Nov 07 05:34:20.801 INFO kablam! 29 |         let mut tx = tx.clone();
Nov 07 05:34:20.801 INFO kablam!    |             ----^^
Nov 07 05:34:20.801 INFO kablam!    |             |
Nov 07 05:34:20.801 INFO kablam!    |             help: remove this `mut`
Nov 07 05:34:20.801 INFO kablam! 
Nov 07 05:34:20.812 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 07 05:34:20.812 INFO kablam!   --> src/bin/mthread.rs:20:21
Nov 07 05:34:20.812 INFO kablam!    |
Nov 07 05:34:20.812 INFO kablam! 20 |                     a.send(1);
Nov 07 05:34:20.812 INFO kablam!    |                     ^^^^^^^^^^
Nov 07 05:34:20.812 INFO kablam!    |
Nov 07 05:34:20.812 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 07 05:34:20.812 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 07 05:34:20.812 INFO kablam! 
Nov 07 05:34:20.812 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 07 05:34:20.812 INFO kablam!   --> src/bin/mthread.rs:34:17
Nov 07 05:34:20.812 INFO kablam!    |
Nov 07 05:34:20.812 INFO kablam! 34 |                 tx.send(d);
Nov 07 05:34:20.812 INFO kablam!    |                 ^^^^^^^^^^^
Nov 07 05:34:20.812 INFO kablam!    |
Nov 07 05:34:20.812 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 07 05:34:20.812 INFO kablam! 
Nov 07 05:34:21.670 INFO kablam! warning: variable does not need to be mutable
Nov 07 05:34:21.670 INFO kablam!   --> src/bin/mthread.rs:11:9
Nov 07 05:34:21.670 INFO kablam!    |
Nov 07 05:34:21.670 INFO kablam! 11 |     let mut ptr = Arc::new(Mutex::new("hello world!".chars()));
Nov 07 05:34:21.670 INFO kablam!    |         ----^^^
Nov 07 05:34:21.670 INFO kablam!    |         |
Nov 07 05:34:21.670 INFO kablam!    |         help: remove this `mut`
Nov 07 05:34:21.670 INFO kablam!    |
Nov 07 05:34:21.670 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 07 05:34:21.670 INFO kablam! 
Nov 07 05:34:21.670 INFO kablam! warning: variable does not need to be mutable
Nov 07 05:34:21.670 INFO kablam!   --> src/bin/mthread.rs:27:13
Nov 07 05:34:21.670 INFO kablam!    |
Nov 07 05:34:21.670 INFO kablam! 27 |         let mut ptr = ptr.clone();
Nov 07 05:34:21.670 INFO kablam!    |             ----^^^
Nov 07 05:34:21.670 INFO kablam!    |             |
Nov 07 05:34:21.670 INFO kablam!    |             help: remove this `mut`
Nov 07 05:34:21.670 INFO kablam! 
Nov 07 05:34:21.670 INFO kablam! warning: variable does not need to be mutable
Nov 07 05:34:21.670 INFO kablam!   --> src/bin/mthread.rs:29:13
Nov 07 05:34:21.670 INFO kablam!    |
Nov 07 05:34:21.670 INFO kablam! 29 |         let mut tx = tx.clone();
Nov 07 05:34:21.670 INFO kablam!    |             ----^^
Nov 07 05:34:21.670 INFO kablam!    |             |
Nov 07 05:34:21.670 INFO kablam!    |             help: remove this `mut`
Nov 07 05:34:21.670 INFO kablam! 
Nov 07 05:34:21.675 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 07 05:34:21.675 INFO kablam!   --> src/bin/mthread.rs:20:21
Nov 07 05:34:21.675 INFO kablam!    |
Nov 07 05:34:21.675 INFO kablam! 20 |                     a.send(1);
Nov 07 05:34:21.675 INFO kablam!    |                     ^^^^^^^^^^
Nov 07 05:34:21.675 INFO kablam!    |
Nov 07 05:34:21.675 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 07 05:34:21.675 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 07 05:34:21.675 INFO kablam! 
Nov 07 05:34:21.675 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 07 05:34:21.675 INFO kablam!   --> src/bin/mthread.rs:34:17
Nov 07 05:34:21.675 INFO kablam!    |
Nov 07 05:34:21.675 INFO kablam! 34 |                 tx.send(d);
Nov 07 05:34:21.675 INFO kablam!    |                 ^^^^^^^^^^^
Nov 07 05:34:21.675 INFO kablam!    |
Nov 07 05:34:21.675 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 07 05:34:21.675 INFO kablam! 
Nov 07 05:34:21.952 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
Nov 07 05:34:21.956 INFO kablam! su: No module specific data is present
Nov 07 05:34:23.133 INFO running `"docker" "rm" "-f" "b9f1e34c7264d0cb1fccad4e46c784810605fdc722f7fe5b942eaf1e5f223aa3"`
Nov 07 05:34:23.488 INFO blam! b9f1e34c7264d0cb1fccad4e46c784810605fdc722f7fe5b942eaf1e5f223aa3