Oct 27 12:30:19.816 INFO checking CGQAQ/Rust_Learn against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2 Oct 27 12:30:19.816 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-5/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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"` Oct 27 12:30:20.335 INFO blam! 35fdfed75cbbb1dc22e2c9f80a77961fcec91605380d5f8eaf0dfa4eedf5b0bd Oct 27 12:30:20.337 INFO running `"docker" "start" "-a" "35fdfed75cbbb1dc22e2c9f80a77961fcec91605380d5f8eaf0dfa4eedf5b0bd"` Oct 27 12:30:21.786 INFO kablam! usermod: no changes Oct 27 12:30:21.840 INFO kablam! warning: An explicit [[bin]] section is specified in Cargo.toml which currently Oct 27 12:30:21.840 INFO kablam! disables Cargo from automatically inferring other binary targets. Oct 27 12:30:21.840 INFO kablam! This inference behavior will change in the Rust 2018 edition and the following Oct 27 12:30:21.840 INFO kablam! files will be included as a binary target: Oct 27 12:30:21.840 INFO kablam! Oct 27 12:30:21.840 INFO kablam! * /source/src/main.rs Oct 27 12:30:21.840 INFO kablam! Oct 27 12:30:21.840 INFO kablam! This is likely to break cargo build or cargo test as these files may not be Oct 27 12:30:21.840 INFO kablam! ready to be compiled as a binary target today. You can future-proof yourself Oct 27 12:30:21.840 INFO kablam! and disable this warning by adding `autobins = false` to your [package] Oct 27 12:30:21.840 INFO kablam! section. You may also move the files to a location where Cargo would not Oct 27 12:30:21.840 INFO kablam! automatically infer them to be a target, such as in subfolders. Oct 27 12:30:21.840 INFO kablam! Oct 27 12:30:21.840 INFO kablam! For more information on this warning you can consult Oct 27 12:30:21.840 INFO kablam! https://github.com/rust-lang/cargo/issues/5330 Oct 27 12:30:21.840 INFO kablam! warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`, Oct 27 12:30:21.840 INFO kablam! please set bin.path in Cargo.toml Oct 27 12:30:21.859 INFO kablam! Checking learn v0.1.0 (/source) Oct 27 12:30:23.155 INFO kablam! warning: variable does not need to be mutable Oct 27 12:30:23.155 INFO kablam! --> src/bin/mthread.rs:11:9 Oct 27 12:30:23.155 INFO kablam! | Oct 27 12:30:23.155 INFO kablam! 11 | let mut ptr = Arc::new(Mutex::new("hello world!".chars())); Oct 27 12:30:23.155 INFO kablam! | ----^^^ Oct 27 12:30:23.155 INFO kablam! | | Oct 27 12:30:23.155 INFO kablam! | help: remove this `mut` Oct 27 12:30:23.155 INFO kablam! | Oct 27 12:30:23.155 INFO kablam! = note: #[warn(unused_mut)] on by default Oct 27 12:30:23.155 INFO kablam! Oct 27 12:30:23.155 INFO kablam! warning: variable does not need to be mutable Oct 27 12:30:23.155 INFO kablam! --> src/bin/mthread.rs:27:13 Oct 27 12:30:23.155 INFO kablam! | Oct 27 12:30:23.155 INFO kablam! 27 | let mut ptr = ptr.clone(); Oct 27 12:30:23.155 INFO kablam! | ----^^^ Oct 27 12:30:23.155 INFO kablam! | | Oct 27 12:30:23.155 INFO kablam! | help: remove this `mut` Oct 27 12:30:23.155 INFO kablam! Oct 27 12:30:23.155 INFO kablam! warning: variable does not need to be mutable Oct 27 12:30:23.155 INFO kablam! --> src/bin/mthread.rs:29:13 Oct 27 12:30:23.155 INFO kablam! | Oct 27 12:30:23.155 INFO kablam! 29 | let mut tx = tx.clone(); Oct 27 12:30:23.155 INFO kablam! | ----^^ Oct 27 12:30:23.155 INFO kablam! | | Oct 27 12:30:23.166 INFO kablam! | help: remove this `mut` Oct 27 12:30:23.167 INFO kablam! Oct 27 12:30:23.167 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 12:30:23.167 INFO kablam! --> src/bin/mthread.rs:20:21 Oct 27 12:30:23.167 INFO kablam! | Oct 27 12:30:23.167 INFO kablam! 20 | a.send(1); Oct 27 12:30:23.167 INFO kablam! | ^^^^^^^^^^ Oct 27 12:30:23.167 INFO kablam! | Oct 27 12:30:23.167 INFO kablam! = note: #[warn(unused_must_use)] on by default Oct 27 12:30:23.167 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 12:30:23.167 INFO kablam! Oct 27 12:30:23.167 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 12:30:23.167 INFO kablam! --> src/bin/mthread.rs:34:17 Oct 27 12:30:23.167 INFO kablam! | Oct 27 12:30:23.167 INFO kablam! 34 | tx.send(d); Oct 27 12:30:23.167 INFO kablam! | ^^^^^^^^^^^ Oct 27 12:30:23.167 INFO kablam! | Oct 27 12:30:23.167 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 12:30:23.167 INFO kablam! Oct 27 12:30:24.423 INFO kablam! warning: variable does not need to be mutable Oct 27 12:30:24.423 INFO kablam! --> src/bin/mthread.rs:11:9 Oct 27 12:30:24.424 INFO kablam! | Oct 27 12:30:24.424 INFO kablam! 11 | let mut ptr = Arc::new(Mutex::new("hello world!".chars())); Oct 27 12:30:24.425 INFO kablam! | ----^^^ Oct 27 12:30:24.425 INFO kablam! | | Oct 27 12:30:24.425 INFO kablam! | help: remove this `mut` Oct 27 12:30:24.425 INFO kablam! | Oct 27 12:30:24.426 INFO kablam! = note: #[warn(unused_mut)] on by default Oct 27 12:30:24.426 INFO kablam! Oct 27 12:30:24.426 INFO kablam! warning: variable does not need to be mutable Oct 27 12:30:24.426 INFO kablam! --> src/bin/mthread.rs:27:13 Oct 27 12:30:24.426 INFO kablam! | Oct 27 12:30:24.426 INFO kablam! 27 | let mut ptr = ptr.clone(); Oct 27 12:30:24.426 INFO kablam! | ----^^^ Oct 27 12:30:24.426 INFO kablam! | | Oct 27 12:30:24.426 INFO kablam! | help: remove this `mut` Oct 27 12:30:24.426 INFO kablam! Oct 27 12:30:24.426 INFO kablam! warning: variable does not need to be mutable Oct 27 12:30:24.426 INFO kablam! --> src/bin/mthread.rs:29:13 Oct 27 12:30:24.426 INFO kablam! | Oct 27 12:30:24.426 INFO kablam! 29 | let mut tx = tx.clone(); Oct 27 12:30:24.426 INFO kablam! | ----^^ Oct 27 12:30:24.426 INFO kablam! | | Oct 27 12:30:24.426 INFO kablam! | help: remove this `mut` Oct 27 12:30:24.426 INFO kablam! Oct 27 12:30:24.426 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 12:30:24.426 INFO kablam! --> src/bin/mthread.rs:20:21 Oct 27 12:30:24.426 INFO kablam! | Oct 27 12:30:24.426 INFO kablam! 20 | a.send(1); Oct 27 12:30:24.426 INFO kablam! | ^^^^^^^^^^ Oct 27 12:30:24.426 INFO kablam! | Oct 27 12:30:24.426 INFO kablam! = note: #[warn(unused_must_use)] on by default Oct 27 12:30:24.426 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 12:30:24.426 INFO kablam! Oct 27 12:30:24.426 INFO kablam! warning: unused `std::result::Result` that must be used Oct 27 12:30:24.426 INFO kablam! --> src/bin/mthread.rs:34:17 Oct 27 12:30:24.426 INFO kablam! | Oct 27 12:30:24.427 INFO kablam! 34 | tx.send(d); Oct 27 12:30:24.427 INFO kablam! | ^^^^^^^^^^^ Oct 27 12:30:24.427 INFO kablam! | Oct 27 12:30:24.427 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Oct 27 12:30:24.427 INFO kablam! Oct 27 12:30:24.579 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 2.76s Oct 27 12:30:24.587 INFO kablam! su: No module specific data is present Oct 27 12:30:25.398 INFO running `"docker" "rm" "-f" "35fdfed75cbbb1dc22e2c9f80a77961fcec91605380d5f8eaf0dfa4eedf5b0bd"` Oct 27 12:30:25.752 INFO blam! 35fdfed75cbbb1dc22e2c9f80a77961fcec91605380d5f8eaf0dfa4eedf5b0bd