Oct 12 23:56:46.190 INFO checking caporta/rust_fundamentals against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 23:56:46.190 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 12 23:56:46.664 INFO blam! f6e178f1359c1284d8c3cedd31d41785fc06105dc3419eae6938e1eb66d35d9f
Oct 12 23:56:46.666 INFO running `"docker" "start" "-a" "f6e178f1359c1284d8c3cedd31d41785fc06105dc3419eae6938e1eb66d35d9f"`
Oct 12 23:56:48.473 INFO kablam! usermod: no changes
Oct 12 23:56:48.524 INFO kablam!     Checking hello_world v0.0.1 (/source)
Oct 12 23:56:48.604 INFO kablam! warning: unknown lint: `unused_variable`
Oct 12 23:56:48.604 INFO kablam!  --> src/stack_and_heap.rs:2:9
Oct 12 23:56:48.604 INFO kablam!   |
Oct 12 23:56:48.604 INFO kablam! 2 | #[allow(unused_variable)]
Oct 12 23:56:48.604 INFO kablam!   |         ^^^^^^^^^^^^^^^
Oct 12 23:56:48.604 INFO kablam!   |
Oct 12 23:56:48.604 INFO kablam!   = note: #[warn(unknown_lints)] on by default
Oct 12 23:56:48.604 INFO kablam! 
Oct 12 23:56:48.700 INFO kablam! warning: unknown lint: `unused_variable`
Oct 12 23:56:48.700 INFO kablam!  --> src/stack_and_heap.rs:2:9
Oct 12 23:56:48.700 INFO kablam!   |
Oct 12 23:56:48.700 INFO kablam! 2 | #[allow(unused_variable)]
Oct 12 23:56:48.700 INFO kablam!   |         ^^^^^^^^^^^^^^^
Oct 12 23:56:48.700 INFO kablam!   |
Oct 12 23:56:48.700 INFO kablam!   = note: #[warn(unknown_lints)] on by default
Oct 12 23:56:48.700 INFO kablam! 
Oct 12 23:56:49.600 INFO kablam! warning: unused variable: `x`
Oct 12 23:56:49.600 INFO kablam!   --> src/stack_and_heap.rs:15:9
Oct 12 23:56:49.600 INFO kablam!    |
Oct 12 23:56:49.600 INFO kablam! 15 |     let x = 5; // i32 stored on the stack
Oct 12 23:56:49.600 INFO kablam!    |         ^ help: consider using `_x` instead
Oct 12 23:56:49.600 INFO kablam!    |
Oct 12 23:56:49.600 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 23:56:49.600 INFO kablam! 
Oct 12 23:56:49.600 INFO kablam! warning: unused variable: `u`
Oct 12 23:56:49.600 INFO kablam!   --> src/data_structures_2.rs:43:9
Oct 12 23:56:49.600 INFO kablam!    |
Oct 12 23:56:49.600 INFO kablam! 43 |     let u:&str = &letters; // d-ref conversions
Oct 12 23:56:49.600 INFO kablam!    |         ^ help: consider using `_u` instead
Oct 12 23:56:49.600 INFO kablam! 
Oct 12 23:56:49.600 INFO kablam! warning: unused variable: `z`
Oct 12 23:56:49.601 INFO kablam!  --> src/pattern_matching.rs:5:9
Oct 12 23:56:49.601 INFO kablam!   |
Oct 12 23:56:49.601 INFO kablam! 5 |         z @ 9...11 => "lots of", //assign range to variable
Oct 12 23:56:49.601 INFO kablam!   |         ^ help: consider using `_z` instead
Oct 12 23:56:49.601 INFO kablam! 
Oct 12 23:56:49.601 INFO kablam! warning: unused variable: `myLine`
Oct 12 23:56:49.601 INFO kablam!   --> src/generics.rs:17:9
Oct 12 23:56:49.601 INFO kablam!    |
Oct 12 23:56:49.601 INFO kablam! 17 |     let myLine = Line { start: a, end: b };
Oct 12 23:56:49.601 INFO kablam!    |         ^^^^^^ help: consider using `_myLine` instead
Oct 12 23:56:49.601 INFO kablam! 
Oct 12 23:56:49.660 INFO kablam! warning: unused variable: `x`
Oct 12 23:56:49.660 INFO kablam!   --> src/stack_and_heap.rs:15:9
Oct 12 23:56:49.660 INFO kablam!    |
Oct 12 23:56:49.660 INFO kablam! 15 |     let x = 5; // i32 stored on the stack
Oct 12 23:56:49.660 INFO kablam!    |         ^ help: consider using `_x` instead
Oct 12 23:56:49.660 INFO kablam!    |
Oct 12 23:56:49.660 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 23:56:49.660 INFO kablam! 
Oct 12 23:56:49.660 INFO kablam! warning: unused variable: `u`
Oct 12 23:56:49.660 INFO kablam!   --> src/data_structures_2.rs:43:9
Oct 12 23:56:49.660 INFO kablam!    |
Oct 12 23:56:49.660 INFO kablam! 43 |     let u:&str = &letters; // d-ref conversions
Oct 12 23:56:49.660 INFO kablam!    |         ^ help: consider using `_u` instead
Oct 12 23:56:49.660 INFO kablam! 
Oct 12 23:56:49.660 INFO kablam! warning: unused variable: `z`
Oct 12 23:56:49.660 INFO kablam!  --> src/pattern_matching.rs:5:9
Oct 12 23:56:49.661 INFO kablam!   |
Oct 12 23:56:49.661 INFO kablam! 5 |         z @ 9...11 => "lots of", //assign range to variable
Oct 12 23:56:49.661 INFO kablam!   |         ^ help: consider using `_z` instead
Oct 12 23:56:49.661 INFO kablam! 
Oct 12 23:56:49.661 INFO kablam! warning: unused variable: `myLine`
Oct 12 23:56:49.661 INFO kablam!   --> src/generics.rs:17:9
Oct 12 23:56:49.661 INFO kablam!    |
Oct 12 23:56:49.661 INFO kablam! 17 |     let myLine = Line { start: a, end: b };
Oct 12 23:56:49.661 INFO kablam!    |         ^^^^^^ help: consider using `_myLine` instead
Oct 12 23:56:49.661 INFO kablam! 
Oct 12 23:56:49.776 INFO kablam! warning: field is never used: `y`
Oct 12 23:56:49.776 INFO kablam!  --> src/stack_and_heap.rs:7:5
Oct 12 23:56:49.776 INFO kablam!   |
Oct 12 23:56:49.776 INFO kablam! 7 |     y: f64
Oct 12 23:56:49.776 INFO kablam!   |     ^^^^^^
Oct 12 23:56:49.776 INFO kablam!   |
Oct 12 23:56:49.776 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 23:56:49.776 INFO kablam! 
Oct 12 23:56:49.776 INFO kablam! warning: variant is never constructed: `Red`
Oct 12 23:56:49.776 INFO kablam!   --> src/data_structures_1.rs:28:5
Oct 12 23:56:49.777 INFO kablam!    |
Oct 12 23:56:49.777 INFO kablam! 28 |     Red, // "memberless struct"
Oct 12 23:56:49.777 INFO kablam!    |     ^^^
Oct 12 23:56:49.777 INFO kablam! 
Oct 12 23:56:49.777 INFO kablam! warning: variant is never constructed: `Green`
Oct 12 23:56:49.777 INFO kablam!   --> src/data_structures_1.rs:29:5
Oct 12 23:56:49.777 INFO kablam!    |
Oct 12 23:56:49.777 INFO kablam! 29 |     Green, // "memberless struct"
Oct 12 23:56:49.777 INFO kablam!    |     ^^^^^
Oct 12 23:56:49.777 INFO kablam! 
Oct 12 23:56:49.777 INFO kablam! warning: variant is never constructed: `Blue`
Oct 12 23:56:49.777 INFO kablam!   --> src/data_structures_1.rs:30:5
Oct 12 23:56:49.777 INFO kablam!    |
Oct 12 23:56:49.777 INFO kablam! 30 |     Blue, // etc...
Oct 12 23:56:49.777 INFO kablam!    |     ^^^^
Oct 12 23:56:49.777 INFO kablam! 
Oct 12 23:56:49.777 INFO kablam! warning: variant is never constructed: `RGBColor`
Oct 12 23:56:49.777 INFO kablam!   --> src/data_structures_1.rs:31:5
Oct 12 23:56:49.777 INFO kablam!    |
Oct 12 23:56:49.777 INFO kablam! 31 |     RGBColor(u8, u8, u8), // tuple
Oct 12 23:56:49.777 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 12 23:56:49.777 INFO kablam! 
Oct 12 23:56:49.777 INFO kablam! warning: field is never used: `cyan`
Oct 12 23:56:49.777 INFO kablam!   --> src/data_structures_1.rs:32:15
Oct 12 23:56:49.777 INFO kablam!    |
Oct 12 23:56:49.777 INFO kablam! 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Oct 12 23:56:49.777 INFO kablam!    |               ^^^^^^^
Oct 12 23:56:49.777 INFO kablam! 
Oct 12 23:56:49.777 INFO kablam! warning: field is never used: `magenta`
Oct 12 23:56:49.777 INFO kablam!   --> src/data_structures_1.rs:32:24
Oct 12 23:56:49.777 INFO kablam!    |
Oct 12 23:56:49.777 INFO kablam! 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Oct 12 23:56:49.777 INFO kablam!    |                        ^^^^^^^^^^
Oct 12 23:56:49.777 INFO kablam! 
Oct 12 23:56:49.777 INFO kablam! warning: field is never used: `yellow`
Oct 12 23:56:49.777 INFO kablam!   --> src/data_structures_1.rs:32:36
Oct 12 23:56:49.777 INFO kablam!    |
Oct 12 23:56:49.777 INFO kablam! 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Oct 12 23:56:49.777 INFO kablam!    |                                    ^^^^^^^^^
Oct 12 23:56:49.777 INFO kablam! 
Oct 12 23:56:49.777 INFO kablam! warning: field is never used: `start`
Oct 12 23:56:49.777 INFO kablam!  --> src/generics.rs:7:5
Oct 12 23:56:49.777 INFO kablam!   |
Oct 12 23:56:49.777 INFO kablam! 7 |     start: Point<T>,
Oct 12 23:56:49.777 INFO kablam!   |     ^^^^^^^^^^^^^^^
Oct 12 23:56:49.777 INFO kablam! 
Oct 12 23:56:49.777 INFO kablam! warning: field is never used: `end`
Oct 12 23:56:49.777 INFO kablam!  --> src/generics.rs:8:5
Oct 12 23:56:49.777 INFO kablam!   |
Oct 12 23:56:49.777 INFO kablam! 8 |     end: Point<T>,
Oct 12 23:56:49.777 INFO kablam!   |     ^^^^^^^^^^^^^
Oct 12 23:56:49.777 INFO kablam! 
Oct 12 23:56:49.779 INFO kablam! warning: variable `myLine` should have a snake case name such as `my_line`
Oct 12 23:56:49.779 INFO kablam!   --> src/data_structures_1.rs:21:9
Oct 12 23:56:49.779 INFO kablam!    |
Oct 12 23:56:49.779 INFO kablam! 21 |     let myLine = Line { start: p, end: p2 };
Oct 12 23:56:49.779 INFO kablam!    |         ^^^^^^
Oct 12 23:56:49.779 INFO kablam!    |
Oct 12 23:56:49.779 INFO kablam!    = note: #[warn(non_snake_case)] on by default
Oct 12 23:56:49.779 INFO kablam! 
Oct 12 23:56:49.779 INFO kablam! warning: variable `myLine` should have a snake case name such as `my_line`
Oct 12 23:56:49.779 INFO kablam!   --> src/generics.rs:17:9
Oct 12 23:56:49.779 INFO kablam!    |
Oct 12 23:56:49.779 INFO kablam! 17 |     let myLine = Line { start: a, end: b };
Oct 12 23:56:49.779 INFO kablam!    |         ^^^^^^
Oct 12 23:56:49.779 INFO kablam! 
Oct 12 23:56:49.876 INFO kablam! warning: field is never used: `y`
Oct 12 23:56:49.876 INFO kablam!  --> src/stack_and_heap.rs:7:5
Oct 12 23:56:49.876 INFO kablam!   |
Oct 12 23:56:49.876 INFO kablam! 7 |     y: f64
Oct 12 23:56:49.876 INFO kablam!   |     ^^^^^^
Oct 12 23:56:49.876 INFO kablam!   |
Oct 12 23:56:49.876 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 23:56:49.876 INFO kablam! 
Oct 12 23:56:49.876 INFO kablam! warning: variant is never constructed: `Red`
Oct 12 23:56:49.876 INFO kablam!   --> src/data_structures_1.rs:28:5
Oct 12 23:56:49.876 INFO kablam!    |
Oct 12 23:56:49.876 INFO kablam! 28 |     Red, // "memberless struct"
Oct 12 23:56:49.876 INFO kablam!    |     ^^^
Oct 12 23:56:49.876 INFO kablam! 
Oct 12 23:56:49.876 INFO kablam! warning: variant is never constructed: `Green`
Oct 12 23:56:49.876 INFO kablam!   --> src/data_structures_1.rs:29:5
Oct 12 23:56:49.876 INFO kablam!    |
Oct 12 23:56:49.876 INFO kablam! 29 |     Green, // "memberless struct"
Oct 12 23:56:49.876 INFO kablam!    |     ^^^^^
Oct 12 23:56:49.876 INFO kablam! 
Oct 12 23:56:49.877 INFO kablam! warning: variant is never constructed: `Blue`
Oct 12 23:56:49.877 INFO kablam!   --> src/data_structures_1.rs:30:5
Oct 12 23:56:49.877 INFO kablam!    |
Oct 12 23:56:49.877 INFO kablam! 30 |     Blue, // etc...
Oct 12 23:56:49.877 INFO kablam!    |     ^^^^
Oct 12 23:56:49.877 INFO kablam! 
Oct 12 23:56:49.877 INFO kablam! warning: variant is never constructed: `RGBColor`
Oct 12 23:56:49.877 INFO kablam!   --> src/data_structures_1.rs:31:5
Oct 12 23:56:49.877 INFO kablam!    |
Oct 12 23:56:49.877 INFO kablam! 31 |     RGBColor(u8, u8, u8), // tuple
Oct 12 23:56:49.877 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 12 23:56:49.877 INFO kablam! 
Oct 12 23:56:49.877 INFO kablam! warning: field is never used: `cyan`
Oct 12 23:56:49.877 INFO kablam!   --> src/data_structures_1.rs:32:15
Oct 12 23:56:49.877 INFO kablam!    |
Oct 12 23:56:49.877 INFO kablam! 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Oct 12 23:56:49.877 INFO kablam!    |               ^^^^^^^
Oct 12 23:56:49.877 INFO kablam! 
Oct 12 23:56:49.877 INFO kablam! warning: field is never used: `magenta`
Oct 12 23:56:49.877 INFO kablam!   --> src/data_structures_1.rs:32:24
Oct 12 23:56:49.877 INFO kablam!    |
Oct 12 23:56:49.877 INFO kablam! 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Oct 12 23:56:49.877 INFO kablam!    |                        ^^^^^^^^^^
Oct 12 23:56:49.877 INFO kablam! 
Oct 12 23:56:49.877 INFO kablam! warning: field is never used: `yellow`
Oct 12 23:56:49.877 INFO kablam!   --> src/data_structures_1.rs:32:36
Oct 12 23:56:49.877 INFO kablam!    |
Oct 12 23:56:49.877 INFO kablam! 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Oct 12 23:56:49.877 INFO kablam!    |                                    ^^^^^^^^^
Oct 12 23:56:49.877 INFO kablam! 
Oct 12 23:56:49.877 INFO kablam! warning: field is never used: `start`
Oct 12 23:56:49.877 INFO kablam!  --> src/generics.rs:7:5
Oct 12 23:56:49.877 INFO kablam!   |
Oct 12 23:56:49.877 INFO kablam! 7 |     start: Point<T>,
Oct 12 23:56:49.877 INFO kablam!   |     ^^^^^^^^^^^^^^^
Oct 12 23:56:49.877 INFO kablam! 
Oct 12 23:56:49.877 INFO kablam! warning: field is never used: `end`
Oct 12 23:56:49.877 INFO kablam!  --> src/generics.rs:8:5
Oct 12 23:56:49.877 INFO kablam!   |
Oct 12 23:56:49.877 INFO kablam! 8 |     end: Point<T>,
Oct 12 23:56:49.877 INFO kablam!   |     ^^^^^^^^^^^^^
Oct 12 23:56:49.877 INFO kablam! 
Oct 12 23:56:49.877 INFO kablam! warning: variable `myLine` should have a snake case name such as `my_line`
Oct 12 23:56:49.877 INFO kablam!   --> src/data_structures_1.rs:21:9
Oct 12 23:56:49.877 INFO kablam!    |
Oct 12 23:56:49.877 INFO kablam! 21 |     let myLine = Line { start: p, end: p2 };
Oct 12 23:56:49.877 INFO kablam!    |         ^^^^^^
Oct 12 23:56:49.877 INFO kablam!    |
Oct 12 23:56:49.877 INFO kablam!    = note: #[warn(non_snake_case)] on by default
Oct 12 23:56:49.877 INFO kablam! 
Oct 12 23:56:49.877 INFO kablam! warning: variable `myLine` should have a snake case name such as `my_line`
Oct 12 23:56:49.877 INFO kablam!   --> src/generics.rs:17:9
Oct 12 23:56:49.877 INFO kablam!    |
Oct 12 23:56:49.877 INFO kablam! 17 |     let myLine = Line { start: a, end: b };
Oct 12 23:56:49.877 INFO kablam!    |         ^^^^^^
Oct 12 23:56:49.877 INFO kablam! 
Oct 12 23:56:49.968 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
Oct 12 23:56:49.980 INFO kablam! su: No module specific data is present
Oct 12 23:56:50.923 INFO running `"docker" "rm" "-f" "f6e178f1359c1284d8c3cedd31d41785fc06105dc3419eae6938e1eb66d35d9f"`
Oct 12 23:56:51.258 INFO blam! f6e178f1359c1284d8c3cedd31d41785fc06105dc3419eae6938e1eb66d35d9f