Nov 30 05:39:34.057 INFO checking caporta/rust_fundamentals against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 05:39:34.057 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 05:39:34.487 INFO [stdout] f3739141ae3f2de13ded2fd22257e1c95ff9be6a7b6d82560eba13f213a7885f
Nov 30 05:39:34.496 INFO running `"docker" "start" "-a" "f3739141ae3f2de13ded2fd22257e1c95ff9be6a7b6d82560eba13f213a7885f"`
Nov 30 05:39:35.573 INFO [stderr] usermod: no changes
Nov 30 05:39:35.644 INFO [stderr]     Checking hello_world v0.0.1 (/source)
Nov 30 05:39:35.760 INFO [stderr] warning: unknown lint: `unused_variable`
Nov 30 05:39:35.760 INFO [stderr]  --> src/stack_and_heap.rs:2:9
Nov 30 05:39:35.760 INFO [stderr]   |
Nov 30 05:39:35.760 INFO [stderr] 2 | #[allow(unused_variable)]
Nov 30 05:39:35.760 INFO [stderr]   |         ^^^^^^^^^^^^^^^
Nov 30 05:39:35.760 INFO [stderr]   |
Nov 30 05:39:35.760 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 30 05:39:35.760 INFO [stderr] 
Nov 30 05:39:35.783 INFO [stderr] warning: unknown lint: `unused_variable`
Nov 30 05:39:35.783 INFO [stderr]  --> src/stack_and_heap.rs:2:9
Nov 30 05:39:35.783 INFO [stderr]   |
Nov 30 05:39:35.783 INFO [stderr] 2 | #[allow(unused_variable)]
Nov 30 05:39:35.783 INFO [stderr]   |         ^^^^^^^^^^^^^^^
Nov 30 05:39:35.783 INFO [stderr]   |
Nov 30 05:39:35.783 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 30 05:39:35.783 INFO [stderr] 
Nov 30 05:39:36.555 INFO [stderr] warning: unused variable: `x`
Nov 30 05:39:36.555 INFO [stderr]   --> src/stack_and_heap.rs:15:9
Nov 30 05:39:36.555 INFO [stderr]    |
Nov 30 05:39:36.555 INFO [stderr] 15 |     let x = 5; // i32 stored on the stack
Nov 30 05:39:36.555 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 30 05:39:36.555 INFO [stderr]    |
Nov 30 05:39:36.556 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 05:39:36.556 INFO [stderr] 
Nov 30 05:39:36.556 INFO [stderr] warning: unused variable: `u`
Nov 30 05:39:36.556 INFO [stderr]   --> src/data_structures_2.rs:43:9
Nov 30 05:39:36.556 INFO [stderr]    |
Nov 30 05:39:36.556 INFO [stderr] 43 |     let u:&str = &letters; // d-ref conversions
Nov 30 05:39:36.556 INFO [stderr]    |         ^ help: consider using `_u` instead
Nov 30 05:39:36.556 INFO [stderr] 
Nov 30 05:39:36.556 INFO [stderr] warning: unused variable: `z`
Nov 30 05:39:36.556 INFO [stderr]  --> src/pattern_matching.rs:5:9
Nov 30 05:39:36.556 INFO [stderr]   |
Nov 30 05:39:36.556 INFO [stderr] 5 |         z @ 9...11 => "lots of", //assign range to variable
Nov 30 05:39:36.556 INFO [stderr]   |         ^ help: consider using `_z` instead
Nov 30 05:39:36.556 INFO [stderr] 
Nov 30 05:39:36.556 INFO [stderr] warning: unused variable: `myLine`
Nov 30 05:39:36.556 INFO [stderr]   --> src/generics.rs:17:9
Nov 30 05:39:36.556 INFO [stderr]    |
Nov 30 05:39:36.556 INFO [stderr] 17 |     let myLine = Line { start: a, end: b };
Nov 30 05:39:36.556 INFO [stderr]    |         ^^^^^^ help: consider using `_myLine` instead
Nov 30 05:39:36.556 INFO [stderr] 
Nov 30 05:39:36.624 INFO [stderr] warning: unused variable: `x`
Nov 30 05:39:36.624 INFO [stderr]   --> src/stack_and_heap.rs:15:9
Nov 30 05:39:36.624 INFO [stderr]    |
Nov 30 05:39:36.624 INFO [stderr] 15 |     let x = 5; // i32 stored on the stack
Nov 30 05:39:36.624 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 30 05:39:36.624 INFO [stderr]    |
Nov 30 05:39:36.624 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 05:39:36.624 INFO [stderr] 
Nov 30 05:39:36.624 INFO [stderr] warning: unused variable: `u`
Nov 30 05:39:36.624 INFO [stderr]   --> src/data_structures_2.rs:43:9
Nov 30 05:39:36.624 INFO [stderr]    |
Nov 30 05:39:36.624 INFO [stderr] 43 |     let u:&str = &letters; // d-ref conversions
Nov 30 05:39:36.624 INFO [stderr]    |         ^ help: consider using `_u` instead
Nov 30 05:39:36.624 INFO [stderr] 
Nov 30 05:39:36.624 INFO [stderr] warning: unused variable: `z`
Nov 30 05:39:36.624 INFO [stderr]  --> src/pattern_matching.rs:5:9
Nov 30 05:39:36.624 INFO [stderr]   |
Nov 30 05:39:36.624 INFO [stderr] 5 |         z @ 9...11 => "lots of", //assign range to variable
Nov 30 05:39:36.625 INFO [stderr]   |         ^ help: consider using `_z` instead
Nov 30 05:39:36.625 INFO [stderr] 
Nov 30 05:39:36.625 INFO [stderr] warning: unused variable: `myLine`
Nov 30 05:39:36.625 INFO [stderr]   --> src/generics.rs:17:9
Nov 30 05:39:36.625 INFO [stderr]    |
Nov 30 05:39:36.625 INFO [stderr] 17 |     let myLine = Line { start: a, end: b };
Nov 30 05:39:36.625 INFO [stderr]    |         ^^^^^^ help: consider using `_myLine` instead
Nov 30 05:39:36.625 INFO [stderr] 
Nov 30 05:39:36.710 INFO [stderr] warning: field is never used: `y`
Nov 30 05:39:36.710 INFO [stderr]  --> src/stack_and_heap.rs:7:5
Nov 30 05:39:36.710 INFO [stderr]   |
Nov 30 05:39:36.710 INFO [stderr] 7 |     y: f64
Nov 30 05:39:36.710 INFO [stderr]   |     ^^^^^^
Nov 30 05:39:36.710 INFO [stderr]   |
Nov 30 05:39:36.710 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 05:39:36.710 INFO [stderr] 
Nov 30 05:39:36.710 INFO [stderr] warning: variant is never constructed: `Red`
Nov 30 05:39:36.710 INFO [stderr]   --> src/data_structures_1.rs:28:5
Nov 30 05:39:36.710 INFO [stderr]    |
Nov 30 05:39:36.710 INFO [stderr] 28 |     Red, // "memberless struct"
Nov 30 05:39:36.710 INFO [stderr]    |     ^^^
Nov 30 05:39:36.710 INFO [stderr] 
Nov 30 05:39:36.710 INFO [stderr] warning: variant is never constructed: `Green`
Nov 30 05:39:36.710 INFO [stderr]   --> src/data_structures_1.rs:29:5
Nov 30 05:39:36.710 INFO [stderr]    |
Nov 30 05:39:36.710 INFO [stderr] 29 |     Green, // "memberless struct"
Nov 30 05:39:36.710 INFO [stderr]    |     ^^^^^
Nov 30 05:39:36.710 INFO [stderr] 
Nov 30 05:39:36.710 INFO [stderr] warning: variant is never constructed: `Blue`
Nov 30 05:39:36.710 INFO [stderr]   --> src/data_structures_1.rs:30:5
Nov 30 05:39:36.710 INFO [stderr]    |
Nov 30 05:39:36.710 INFO [stderr] 30 |     Blue, // etc...
Nov 30 05:39:36.710 INFO [stderr]    |     ^^^^
Nov 30 05:39:36.711 INFO [stderr] 
Nov 30 05:39:36.711 INFO [stderr] warning: variant is never constructed: `RGBColor`
Nov 30 05:39:36.711 INFO [stderr]   --> src/data_structures_1.rs:31:5
Nov 30 05:39:36.711 INFO [stderr]    |
Nov 30 05:39:36.711 INFO [stderr] 31 |     RGBColor(u8, u8, u8), // tuple
Nov 30 05:39:36.711 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 05:39:36.711 INFO [stderr] 
Nov 30 05:39:36.711 INFO [stderr] warning: field is never used: `cyan`
Nov 30 05:39:36.711 INFO [stderr]   --> src/data_structures_1.rs:32:15
Nov 30 05:39:36.711 INFO [stderr]    |
Nov 30 05:39:36.711 INFO [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Nov 30 05:39:36.711 INFO [stderr]    |               ^^^^^^^
Nov 30 05:39:36.711 INFO [stderr] 
Nov 30 05:39:36.711 INFO [stderr] warning: field is never used: `magenta`
Nov 30 05:39:36.711 INFO [stderr]   --> src/data_structures_1.rs:32:24
Nov 30 05:39:36.711 INFO [stderr]    |
Nov 30 05:39:36.711 INFO [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Nov 30 05:39:36.711 INFO [stderr]    |                        ^^^^^^^^^^
Nov 30 05:39:36.711 INFO [stderr] 
Nov 30 05:39:36.711 INFO [stderr] warning: field is never used: `yellow`
Nov 30 05:39:36.711 INFO [stderr]   --> src/data_structures_1.rs:32:36
Nov 30 05:39:36.711 INFO [stderr]    |
Nov 30 05:39:36.711 INFO [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Nov 30 05:39:36.711 INFO [stderr]    |                                    ^^^^^^^^^
Nov 30 05:39:36.711 INFO [stderr] 
Nov 30 05:39:36.711 INFO [stderr] warning: field is never used: `start`
Nov 30 05:39:36.711 INFO [stderr]  --> src/generics.rs:7:5
Nov 30 05:39:36.711 INFO [stderr]   |
Nov 30 05:39:36.711 INFO [stderr] 7 |     start: Point<T>,
Nov 30 05:39:36.711 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 05:39:36.713 INFO [stderr] 
Nov 30 05:39:36.713 INFO [stderr] warning: field is never used: `end`
Nov 30 05:39:36.713 INFO [stderr]  --> src/generics.rs:8:5
Nov 30 05:39:36.713 INFO [stderr]   |
Nov 30 05:39:36.713 INFO [stderr] 8 |     end: Point<T>,
Nov 30 05:39:36.713 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 30 05:39:36.713 INFO [stderr] 
Nov 30 05:39:36.715 INFO [stderr] warning: variable `myLine` should have a snake case name such as `my_line`
Nov 30 05:39:36.715 INFO [stderr]   --> src/data_structures_1.rs:21:9
Nov 30 05:39:36.715 INFO [stderr]    |
Nov 30 05:39:36.715 INFO [stderr] 21 |     let myLine = Line { start: p, end: p2 };
Nov 30 05:39:36.715 INFO [stderr]    |         ^^^^^^
Nov 30 05:39:36.715 INFO [stderr]    |
Nov 30 05:39:36.715 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Nov 30 05:39:36.715 INFO [stderr] 
Nov 30 05:39:36.715 INFO [stderr] warning: variable `myLine` should have a snake case name such as `my_line`
Nov 30 05:39:36.715 INFO [stderr]   --> src/generics.rs:17:9
Nov 30 05:39:36.715 INFO [stderr]    |
Nov 30 05:39:36.715 INFO [stderr] 17 |     let myLine = Line { start: a, end: b };
Nov 30 05:39:36.715 INFO [stderr]    |         ^^^^^^
Nov 30 05:39:36.715 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: field is never used: `y`
Nov 30 05:39:36.742 INFO [stderr]  --> src/stack_and_heap.rs:7:5
Nov 30 05:39:36.742 INFO [stderr]   |
Nov 30 05:39:36.742 INFO [stderr] 7 |     y: f64
Nov 30 05:39:36.742 INFO [stderr]   |     ^^^^^^
Nov 30 05:39:36.742 INFO [stderr]   |
Nov 30 05:39:36.742 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: variant is never constructed: `Red`
Nov 30 05:39:36.742 INFO [stderr]   --> src/data_structures_1.rs:28:5
Nov 30 05:39:36.742 INFO [stderr]    |
Nov 30 05:39:36.742 INFO [stderr] 28 |     Red, // "memberless struct"
Nov 30 05:39:36.742 INFO [stderr]    |     ^^^
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: variant is never constructed: `Green`
Nov 30 05:39:36.742 INFO [stderr]   --> src/data_structures_1.rs:29:5
Nov 30 05:39:36.742 INFO [stderr]    |
Nov 30 05:39:36.742 INFO [stderr] 29 |     Green, // "memberless struct"
Nov 30 05:39:36.742 INFO [stderr]    |     ^^^^^
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: variant is never constructed: `Blue`
Nov 30 05:39:36.742 INFO [stderr]   --> src/data_structures_1.rs:30:5
Nov 30 05:39:36.742 INFO [stderr]    |
Nov 30 05:39:36.742 INFO [stderr] 30 |     Blue, // etc...
Nov 30 05:39:36.742 INFO [stderr]    |     ^^^^
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: variant is never constructed: `RGBColor`
Nov 30 05:39:36.742 INFO [stderr]   --> src/data_structures_1.rs:31:5
Nov 30 05:39:36.742 INFO [stderr]    |
Nov 30 05:39:36.742 INFO [stderr] 31 |     RGBColor(u8, u8, u8), // tuple
Nov 30 05:39:36.742 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: field is never used: `cyan`
Nov 30 05:39:36.742 INFO [stderr]   --> src/data_structures_1.rs:32:15
Nov 30 05:39:36.742 INFO [stderr]    |
Nov 30 05:39:36.742 INFO [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Nov 30 05:39:36.742 INFO [stderr]    |               ^^^^^^^
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: field is never used: `magenta`
Nov 30 05:39:36.742 INFO [stderr]   --> src/data_structures_1.rs:32:24
Nov 30 05:39:36.742 INFO [stderr]    |
Nov 30 05:39:36.742 INFO [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Nov 30 05:39:36.742 INFO [stderr]    |                        ^^^^^^^^^^
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: field is never used: `yellow`
Nov 30 05:39:36.742 INFO [stderr]   --> src/data_structures_1.rs:32:36
Nov 30 05:39:36.742 INFO [stderr]    |
Nov 30 05:39:36.742 INFO [stderr] 32 |     CmykColor{cyan:u8, magenta:u8, yellow:u8, black:u8}, // struct
Nov 30 05:39:36.742 INFO [stderr]    |                                    ^^^^^^^^^
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: field is never used: `start`
Nov 30 05:39:36.742 INFO [stderr]  --> src/generics.rs:7:5
Nov 30 05:39:36.742 INFO [stderr]   |
Nov 30 05:39:36.742 INFO [stderr] 7 |     start: Point<T>,
Nov 30 05:39:36.742 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: field is never used: `end`
Nov 30 05:39:36.742 INFO [stderr]  --> src/generics.rs:8:5
Nov 30 05:39:36.742 INFO [stderr]   |
Nov 30 05:39:36.742 INFO [stderr] 8 |     end: Point<T>,
Nov 30 05:39:36.742 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 30 05:39:36.742 INFO [stderr] 
Nov 30 05:39:36.742 INFO [stderr] warning: variable `myLine` should have a snake case name such as `my_line`
Nov 30 05:39:36.742 INFO [stderr]   --> src/data_structures_1.rs:21:9
Nov 30 05:39:36.742 INFO [stderr]    |
Nov 30 05:39:36.742 INFO [stderr] 21 |     let myLine = Line { start: p, end: p2 };
Nov 30 05:39:36.743 INFO [stderr]    |         ^^^^^^
Nov 30 05:39:36.743 INFO [stderr]    |
Nov 30 05:39:36.743 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Nov 30 05:39:36.743 INFO [stderr] 
Nov 30 05:39:36.743 INFO [stderr] warning: variable `myLine` should have a snake case name such as `my_line`
Nov 30 05:39:36.743 INFO [stderr]   --> src/generics.rs:17:9
Nov 30 05:39:36.743 INFO [stderr]    |
Nov 30 05:39:36.743 INFO [stderr] 17 |     let myLine = Line { start: a, end: b };
Nov 30 05:39:36.743 INFO [stderr]    |         ^^^^^^
Nov 30 05:39:36.743 INFO [stderr] 
Nov 30 05:39:36.780 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
Nov 30 05:39:36.796 INFO [stderr] su: No module specific data is present
Nov 30 05:39:37.589 INFO running `"docker" "inspect" "f3739141ae3f2de13ded2fd22257e1c95ff9be6a7b6d82560eba13f213a7885f"`
Nov 30 05:39:37.866 INFO running `"docker" "rm" "-f" "f3739141ae3f2de13ded2fd22257e1c95ff9be6a7b6d82560eba13f213a7885f"`
Nov 30 05:39:38.208 INFO [stdout] f3739141ae3f2de13ded2fd22257e1c95ff9be6a7b6d82560eba13f213a7885f