Nov 01 12:51:45.238 INFO checking CGQAQ/Rust_Learn against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538 Nov 01 12:51:45.240 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 12:51:45.637 INFO blam! c5dbdb74884abda2082faa8d4d765464ae79dffc31a05a56d8aec79fe733b8ad Nov 01 12:51:45.639 INFO running `"docker" "start" "-a" "c5dbdb74884abda2082faa8d4d765464ae79dffc31a05a56d8aec79fe733b8ad"` Nov 01 12:51:47.674 INFO kablam! usermod: no changes Nov 01 12:51:47.724 INFO kablam! warning: An explicit [[bin]] section is specified in Cargo.toml which currently Nov 01 12:51:47.724 INFO kablam! disables Cargo from automatically inferring other binary targets. Nov 01 12:51:47.724 INFO kablam! This inference behavior will change in the Rust 2018 edition and the following Nov 01 12:51:47.724 INFO kablam! files will be included as a binary target: Nov 01 12:51:47.724 INFO kablam! Nov 01 12:51:47.724 INFO kablam! * /source/src/main.rs Nov 01 12:51:47.724 INFO kablam! Nov 01 12:51:47.724 INFO kablam! This is likely to break cargo build or cargo test as these files may not be Nov 01 12:51:47.724 INFO kablam! ready to be compiled as a binary target today. You can future-proof yourself Nov 01 12:51:47.724 INFO kablam! and disable this warning by adding `autobins = false` to your [package] Nov 01 12:51:47.724 INFO kablam! section. You may also move the files to a location where Cargo would not Nov 01 12:51:47.724 INFO kablam! automatically infer them to be a target, such as in subfolders. Nov 01 12:51:47.724 INFO kablam! Nov 01 12:51:47.724 INFO kablam! For more information on this warning you can consult Nov 01 12:51:47.724 INFO kablam! https://github.com/rust-lang/cargo/issues/5330 Nov 01 12:51:47.724 INFO kablam! warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`, Nov 01 12:51:47.724 INFO kablam! please set bin.path in Cargo.toml Nov 01 12:51:47.728 INFO kablam! Checking learn v0.1.0 (/source) Nov 01 12:51:49.080 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:49.080 INFO kablam! --> src/bin/mthread.rs:11:9 Nov 01 12:51:49.080 INFO kablam! | Nov 01 12:51:49.080 INFO kablam! 11 | let mut ptr = Arc::new(Mutex::new("hello world!".chars())); Nov 01 12:51:49.080 INFO kablam! | ----^^^ Nov 01 12:51:49.080 INFO kablam! | | Nov 01 12:51:49.080 INFO kablam! | help: remove this `mut` Nov 01 12:51:49.080 INFO kablam! | Nov 01 12:51:49.080 INFO kablam! = note: #[warn(unused_mut)] on by default Nov 01 12:51:49.080 INFO kablam! Nov 01 12:51:49.080 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:49.080 INFO kablam! --> src/bin/mthread.rs:27:13 Nov 01 12:51:49.080 INFO kablam! | Nov 01 12:51:49.080 INFO kablam! 27 | let mut ptr = ptr.clone(); Nov 01 12:51:49.080 INFO kablam! | ----^^^ Nov 01 12:51:49.080 INFO kablam! | | Nov 01 12:51:49.080 INFO kablam! | help: remove this `mut` Nov 01 12:51:49.080 INFO kablam! Nov 01 12:51:49.080 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:49.080 INFO kablam! --> src/bin/mthread.rs:29:13 Nov 01 12:51:49.080 INFO kablam! | Nov 01 12:51:49.080 INFO kablam! 29 | let mut tx = tx.clone(); Nov 01 12:51:49.080 INFO kablam! | ----^^ Nov 01 12:51:49.080 INFO kablam! | | Nov 01 12:51:49.080 INFO kablam! | help: remove this `mut` Nov 01 12:51:49.080 INFO kablam! Nov 01 12:51:49.080 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 12:51:49.080 INFO kablam! --> src/bin/mthread.rs:20:21 Nov 01 12:51:49.080 INFO kablam! | Nov 01 12:51:49.080 INFO kablam! 20 | a.send(1); Nov 01 12:51:49.080 INFO kablam! | ^^^^^^^^^^ Nov 01 12:51:49.080 INFO kablam! | Nov 01 12:51:49.080 INFO kablam! = note: #[warn(unused_must_use)] on by default Nov 01 12:51:49.080 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 12:51:49.080 INFO kablam! Nov 01 12:51:49.080 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 12:51:49.080 INFO kablam! --> src/bin/mthread.rs:34:17 Nov 01 12:51:49.080 INFO kablam! | Nov 01 12:51:49.080 INFO kablam! 34 | tx.send(d); Nov 01 12:51:49.080 INFO kablam! | ^^^^^^^^^^^ Nov 01 12:51:49.080 INFO kablam! | Nov 01 12:51:49.081 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 12:51:49.081 INFO kablam! Nov 01 12:51:50.108 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:50.108 INFO kablam! --> src/bin/mthread.rs:11:9 Nov 01 12:51:50.108 INFO kablam! | Nov 01 12:51:50.108 INFO kablam! 11 | let mut ptr = Arc::new(Mutex::new("hello world!".chars())); Nov 01 12:51:50.108 INFO kablam! | ----^^^ Nov 01 12:51:50.108 INFO kablam! | | Nov 01 12:51:50.108 INFO kablam! | help: remove this `mut` Nov 01 12:51:50.108 INFO kablam! | Nov 01 12:51:50.108 INFO kablam! = note: #[warn(unused_mut)] on by default Nov 01 12:51:50.108 INFO kablam! Nov 01 12:51:50.108 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:50.108 INFO kablam! --> src/bin/mthread.rs:27:13 Nov 01 12:51:50.108 INFO kablam! | Nov 01 12:51:50.108 INFO kablam! 27 | let mut ptr = ptr.clone(); Nov 01 12:51:50.108 INFO kablam! | ----^^^ Nov 01 12:51:50.108 INFO kablam! | | Nov 01 12:51:50.108 INFO kablam! | help: remove this `mut` Nov 01 12:51:50.108 INFO kablam! Nov 01 12:51:50.108 INFO kablam! warning: variable does not need to be mutable Nov 01 12:51:50.108 INFO kablam! --> src/bin/mthread.rs:29:13 Nov 01 12:51:50.108 INFO kablam! | Nov 01 12:51:50.108 INFO kablam! 29 | let mut tx = tx.clone(); Nov 01 12:51:50.108 INFO kablam! | ----^^ Nov 01 12:51:50.108 INFO kablam! | | Nov 01 12:51:50.108 INFO kablam! | help: remove this `mut` Nov 01 12:51:50.108 INFO kablam! Nov 01 12:51:50.108 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 12:51:50.108 INFO kablam! --> src/bin/mthread.rs:20:21 Nov 01 12:51:50.108 INFO kablam! | Nov 01 12:51:50.108 INFO kablam! 20 | a.send(1); Nov 01 12:51:50.108 INFO kablam! | ^^^^^^^^^^ Nov 01 12:51:50.108 INFO kablam! | Nov 01 12:51:50.108 INFO kablam! = note: #[warn(unused_must_use)] on by default Nov 01 12:51:50.108 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 12:51:50.108 INFO kablam! Nov 01 12:51:50.108 INFO kablam! warning: unused `std::result::Result` that must be used Nov 01 12:51:50.108 INFO kablam! --> src/bin/mthread.rs:34:17 Nov 01 12:51:50.108 INFO kablam! | Nov 01 12:51:50.108 INFO kablam! 34 | tx.send(d); Nov 01 12:51:50.108 INFO kablam! | ^^^^^^^^^^^ Nov 01 12:51:50.108 INFO kablam! | Nov 01 12:51:50.108 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Nov 01 12:51:50.108 INFO kablam! Nov 01 12:51:50.332 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 2.63s Nov 01 12:51:50.340 INFO kablam! su: No module specific data is present Nov 01 12:51:51.094 INFO running `"docker" "rm" "-f" "c5dbdb74884abda2082faa8d4d765464ae79dffc31a05a56d8aec79fe733b8ad"` Nov 01 12:51:51.500 INFO blam! c5dbdb74884abda2082faa8d4d765464ae79dffc31a05a56d8aec79fe733b8ad