Nov 01 12:51:49.315 INFO checking CGQAQ/Rust_Learn against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538 Nov 01 12:51:49.315 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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 01 12:51:49.766 INFO blam! 1514ba84d7ccafb60c46ca4b797557595cdc3f636cc2b8f9f67746f4c1ba0ccb Nov 01 12:51:49.767 INFO running `"docker" "start" "-a" "1514ba84d7ccafb60c46ca4b797557595cdc3f636cc2b8f9f67746f4c1ba0ccb"` Nov 01 12:51:50.944 INFO kablam! usermod: no changes Nov 01 12:51:50.996 INFO kablam! warning: An explicit [[bin]] section is specified in Cargo.toml which currently Nov 01 12:51:50.996 INFO kablam! disables Cargo from automatically inferring other binary targets. Nov 01 12:51:50.996 INFO kablam! This inference behavior will change in the Rust 2018 edition and the following Nov 01 12:51:50.996 INFO kablam! files will be included as a binary target: Nov 01 12:51:50.996 INFO kablam! Nov 01 12:51:50.996 INFO kablam! * /source/src/main.rs Nov 01 12:51:50.996 INFO kablam! Nov 01 12:51:50.996 INFO kablam! This is likely to break cargo build or cargo test as these files may not be Nov 01 12:51:50.996 INFO kablam! ready to be compiled as a binary target today. You can future-proof yourself Nov 01 12:51:50.996 INFO kablam! and disable this warning by adding `autobins = false` to your [package] Nov 01 12:51:50.996 INFO kablam! section. You may also move the files to a location where Cargo would not Nov 01 12:51:50.996 INFO kablam! automatically infer them to be a target, such as in subfolders. Nov 01 12:51:50.996 INFO kablam! Nov 01 12:51:50.996 INFO kablam! For more information on this warning you can consult Nov 01 12:51:50.996 INFO kablam! https://github.com/rust-lang/cargo/issues/5330 Nov 01 12:51:50.996 INFO kablam! warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`, Nov 01 12:51:50.996 INFO kablam! please set bin.path in Cargo.toml Nov 01 12:51:51.006 INFO kablam! Checking learn v0.1.0 (/source) Nov 01 12:51:54.084 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:54.084 INFO kablam! --> src/bin/mthread.rs:11:9 Nov 01 12:51:54.084 INFO kablam! | Nov 01 12:51:54.084 INFO kablam! 11 | let mut ptr = Arc::new(Mutex::new("hello world!".chars())); Nov 01 12:51:54.084 INFO kablam! | ----^^^ Nov 01 12:51:54.084 INFO kablam! | | Nov 01 12:51:54.084 INFO kablam! | help: remove this `mut` Nov 01 12:51:54.084 INFO kablam! | Nov 01 12:51:54.084 INFO kablam! = note: #[warn(unused_mut)] on by default Nov 01 12:51:54.084 INFO kablam! Nov 01 12:51:54.084 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:54.084 INFO kablam! --> src/bin/mthread.rs:27:13 Nov 01 12:51:54.084 INFO kablam! | Nov 01 12:51:54.084 INFO kablam! 27 | let mut ptr = ptr.clone(); Nov 01 12:51:54.085 INFO kablam! | ----^^^ Nov 01 12:51:54.085 INFO kablam! | | Nov 01 12:51:54.085 INFO kablam! | help: remove this `mut` Nov 01 12:51:54.085 INFO kablam! Nov 01 12:51:54.085 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:54.085 INFO kablam! --> src/bin/mthread.rs:29:13 Nov 01 12:51:54.085 INFO kablam! | Nov 01 12:51:54.085 INFO kablam! 29 | let mut tx = tx.clone(); Nov 01 12:51:54.085 INFO kablam! | ----^^ Nov 01 12:51:54.085 INFO kablam! | | Nov 01 12:51:54.085 INFO kablam! | help: remove this `mut` Nov 01 12:51:54.085 INFO kablam! Nov 01 12:51:54.085 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 12:51:54.085 INFO kablam! --> src/bin/mthread.rs:20:21 Nov 01 12:51:54.085 INFO kablam! | Nov 01 12:51:54.085 INFO kablam! 20 | a.send(1); Nov 01 12:51:54.085 INFO kablam! | ^^^^^^^^^^ Nov 01 12:51:54.085 INFO kablam! | Nov 01 12:51:54.085 INFO kablam! = note: #[warn(unused_must_use)] on by default Nov 01 12:51:54.085 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 12:51:54.085 INFO kablam! Nov 01 12:51:54.085 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 12:51:54.085 INFO kablam! --> src/bin/mthread.rs:34:17 Nov 01 12:51:54.085 INFO kablam! | Nov 01 12:51:54.085 INFO kablam! 34 | tx.send(d); Nov 01 12:51:54.085 INFO kablam! | ^^^^^^^^^^^ Nov 01 12:51:54.085 INFO kablam! | Nov 01 12:51:54.085 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 12:51:54.085 INFO kablam! Nov 01 12:51:54.144 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:54.144 INFO kablam! --> src/bin/mthread.rs:11:9 Nov 01 12:51:54.144 INFO kablam! | Nov 01 12:51:54.144 INFO kablam! 11 | let mut ptr = Arc::new(Mutex::new("hello world!".chars())); Nov 01 12:51:54.144 INFO kablam! | ----^^^ Nov 01 12:51:54.144 INFO kablam! | | Nov 01 12:51:54.144 INFO kablam! | help: remove this `mut` Nov 01 12:51:54.144 INFO kablam! | Nov 01 12:51:54.144 INFO kablam! = note: #[warn(unused_mut)] on by default Nov 01 12:51:54.144 INFO kablam! Nov 01 12:51:54.144 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:54.144 INFO kablam! --> src/bin/mthread.rs:27:13 Nov 01 12:51:54.144 INFO kablam! | Nov 01 12:51:54.144 INFO kablam! 27 | let mut ptr = ptr.clone(); Nov 01 12:51:54.144 INFO kablam! | ----^^^ Nov 01 12:51:54.145 INFO kablam! | | Nov 01 12:51:54.145 INFO kablam! | help: remove this `mut` Nov 01 12:51:54.145 INFO kablam! Nov 01 12:51:54.156 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:54.156 INFO kablam! --> src/bin/mthread.rs:29:13 Nov 01 12:51:54.156 INFO kablam! | Nov 01 12:51:54.156 INFO kablam! 29 | let mut tx = tx.clone(); Nov 01 12:51:54.156 INFO kablam! | ----^^ Nov 01 12:51:54.156 INFO kablam! | | Nov 01 12:51:54.156 INFO kablam! | help: remove this `mut` Nov 01 12:51:54.156 INFO kablam! Nov 01 12:51:54.156 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 12:51:54.156 INFO kablam! --> src/bin/mthread.rs:20:21 Nov 01 12:51:54.156 INFO kablam! | Nov 01 12:51:54.156 INFO kablam! 20 | a.send(1); Nov 01 12:51:54.156 INFO kablam! | ^^^^^^^^^^ Nov 01 12:51:54.156 INFO kablam! | Nov 01 12:51:54.156 INFO kablam! = note: #[warn(unused_must_use)] on by default Nov 01 12:51:54.156 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 12:51:54.156 INFO kablam! Nov 01 12:51:54.156 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 12:51:54.156 INFO kablam! --> src/bin/mthread.rs:34:17 Nov 01 12:51:54.156 INFO kablam! | Nov 01 12:51:54.156 INFO kablam! 34 | tx.send(d); Nov 01 12:51:54.157 INFO kablam! | ^^^^^^^^^^^ Nov 01 12:51:54.157 INFO kablam! | Nov 01 12:51:54.157 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 12:51:54.157 INFO kablam! Nov 01 12:51:54.220 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 3.24s Nov 01 12:51:54.232 INFO kablam! su: No module specific data is present Nov 01 12:51:55.357 INFO running `"docker" "rm" "-f" "1514ba84d7ccafb60c46ca4b797557595cdc3f636cc2b8f9f67746f4c1ba0ccb"` Nov 01 12:51:55.684 INFO blam! 1514ba84d7ccafb60c46ca4b797557595cdc3f636cc2b8f9f67746f4c1ba0ccb