Nov 29 18:17:23.817 INFO checking shoul/rust_tutorial against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323 Nov 29 18:17:23.817 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 29 18:17:24.343 INFO [stdout] 937d7fa4af2a979a633472480cf01202f57ff7ca974a57b3128ed61ac7c53f5d Nov 29 18:17:24.345 INFO running `"docker" "start" "-a" "937d7fa4af2a979a633472480cf01202f57ff7ca974a57b3128ed61ac7c53f5d"` Nov 29 18:17:26.388 INFO [stderr] usermod: no changes Nov 29 18:17:26.434 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently Nov 29 18:17:26.434 INFO [stderr] disables Cargo from automatically inferring other binary targets. Nov 29 18:17:26.434 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following Nov 29 18:17:26.434 INFO [stderr] files will be included as a binary target: Nov 29 18:17:26.434 INFO [stderr] Nov 29 18:17:26.434 INFO [stderr] * /source/src/main.rs Nov 29 18:17:26.434 INFO [stderr] Nov 29 18:17:26.434 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be Nov 29 18:17:26.434 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself Nov 29 18:17:26.434 INFO [stderr] and disable this warning by adding `autobins = false` to your [package] Nov 29 18:17:26.434 INFO [stderr] section. You may also move the files to a location where Cargo would not Nov 29 18:17:26.434 INFO [stderr] automatically infer them to be a target, such as in subfolders. Nov 29 18:17:26.434 INFO [stderr] Nov 29 18:17:26.434 INFO [stderr] For more information on this warning you can consult Nov 29 18:17:26.434 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330 Nov 29 18:17:26.440 INFO [stderr] Checking rust_tutorial v0.1.0 (/source) Nov 29 18:17:27.604 INFO [stderr] warning: unused variable: `j` Nov 29 18:17:27.604 INFO [stderr] --> src/vectors.rs:34:6 Nov 29 18:17:27.604 INFO [stderr] | Nov 29 18:17:27.604 INFO [stderr] 34 | let j: i32 = 0; Nov 29 18:17:27.604 INFO [stderr] | ^ help: consider using `_j` instead Nov 29 18:17:27.624 INFO [stderr] | Nov 29 18:17:27.624 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 29 18:17:27.624 INFO [stderr] Nov 29 18:17:27.692 INFO [stderr] warning: unused variable: `v2` Nov 29 18:17:27.696 INFO [stderr] --> src/ownership.rs:37:9 Nov 29 18:17:27.696 INFO [stderr] | Nov 29 18:17:27.696 INFO [stderr] 37 | let v2 = v; Nov 29 18:17:27.696 INFO [stderr] | ^^ help: consider using `_v2` instead Nov 29 18:17:27.696 INFO [stderr] | Nov 29 18:17:27.696 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 29 18:17:27.696 INFO [stderr] Nov 29 18:17:27.756 INFO [stderr] warning: variable does not need to be mutable Nov 29 18:17:27.756 INFO [stderr] --> src/ownership.rs:60:9 Nov 29 18:17:27.756 INFO [stderr] | Nov 29 18:17:27.756 INFO [stderr] 60 | let mut b = a; Nov 29 18:17:27.768 INFO [stderr] | ----^ Nov 29 18:17:27.768 INFO [stderr] | | Nov 29 18:17:27.768 INFO [stderr] | help: remove this `mut` Nov 29 18:17:27.768 INFO [stderr] | Nov 29 18:17:27.768 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 29 18:17:27.768 INFO [stderr] Nov 29 18:17:27.916 INFO [stderr] warning: unused variable: `j` Nov 29 18:17:27.916 INFO [stderr] --> src/vectors.rs:34:6 Nov 29 18:17:27.916 INFO [stderr] | Nov 29 18:17:27.916 INFO [stderr] 34 | let j: i32 = 0; Nov 29 18:17:27.916 INFO [stderr] | ^ help: consider using `_j` instead Nov 29 18:17:27.916 INFO [stderr] | Nov 29 18:17:27.916 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 29 18:17:27.916 INFO [stderr] Nov 29 18:17:28.112 INFO [stderr] warning: unused variable: `v2` Nov 29 18:17:28.112 INFO [stderr] --> src/ownership.rs:37:9 Nov 29 18:17:28.112 INFO [stderr] | Nov 29 18:17:28.112 INFO [stderr] 37 | let v2 = v; Nov 29 18:17:28.112 INFO [stderr] | ^^ help: consider using `_v2` instead Nov 29 18:17:28.112 INFO [stderr] | Nov 29 18:17:28.112 INFO [stderr] = note: #[warn(unused_variables)] on by default Nov 29 18:17:28.112 INFO [stderr] Nov 29 18:17:28.151 INFO [stderr] warning: variable does not need to be mutable Nov 29 18:17:28.152 INFO [stderr] --> src/ownership.rs:60:9 Nov 29 18:17:28.152 INFO [stderr] | Nov 29 18:17:28.152 INFO [stderr] 60 | let mut b = a; Nov 29 18:17:28.152 INFO [stderr] | ----^ Nov 29 18:17:28.153 INFO [stderr] | | Nov 29 18:17:28.153 INFO [stderr] | help: remove this `mut` Nov 29 18:17:28.154 INFO [stderr] | Nov 29 18:17:28.154 INFO [stderr] = note: #[warn(unused_mut)] on by default Nov 29 18:17:28.154 INFO [stderr] Nov 29 18:17:28.597 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.18s Nov 29 18:17:28.599 INFO [stderr] su: No module specific data is present Nov 29 18:17:29.997 INFO running `"docker" "inspect" "937d7fa4af2a979a633472480cf01202f57ff7ca974a57b3128ed61ac7c53f5d"` Nov 29 18:17:30.376 INFO running `"docker" "rm" "-f" "937d7fa4af2a979a633472480cf01202f57ff7ca974a57b3128ed61ac7c53f5d"` Nov 29 18:17:30.727 INFO [stdout] 937d7fa4af2a979a633472480cf01202f57ff7ca974a57b3128ed61ac7c53f5d