Oct 21 19:42:58.919 INFO checking aochagavia/rust-syntax-cheat-sheet against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 19:42:58.919 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-4/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 19:42:59.362 INFO blam! 24615c013623c93e52ff75d1b12a9ac473be52264f52090f45ab4351c087d196
Oct 21 19:42:59.363 INFO running `"docker" "start" "-a" "24615c013623c93e52ff75d1b12a9ac473be52264f52090f45ab4351c087d196"`
Oct 21 19:43:01.148 INFO kablam! usermod: no changes
Oct 21 19:43:01.192 INFO kablam!     Checking syntax v0.1.0 (/source)
Oct 21 19:43:02.036 INFO kablam! warning: unused variable: `x`
Oct 21 19:43:02.037 INFO kablam!   --> src/main.rs:32:9
Oct 21 19:43:02.037 INFO kablam!    |
Oct 21 19:43:02.037 INFO kablam! 32 |     let x: i32 = 42;
Oct 21 19:43:02.037 INFO kablam!    |         ^ help: consider using `_x` instead
Oct 21 19:43:02.037 INFO kablam!    |
Oct 21 19:43:02.038 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 21 19:43:02.038 INFO kablam! 
Oct 21 19:43:02.038 INFO kablam! warning: unused variable: `implicit_x`
Oct 21 19:43:02.038 INFO kablam!   --> src/main.rs:41:9
Oct 21 19:43:02.038 INFO kablam!    |
Oct 21 19:43:02.039 INFO kablam! 41 |     let implicit_x = 1;
Oct 21 19:43:02.039 INFO kablam!    |         ^^^^^^^^^^ help: consider using `_implicit_x` instead
Oct 21 19:43:02.039 INFO kablam! 
Oct 21 19:43:02.039 INFO kablam! warning: unused variable: `implicit_f`
Oct 21 19:43:02.039 INFO kablam!   --> src/main.rs:42:9
Oct 21 19:43:02.039 INFO kablam!    |
Oct 21 19:43:02.040 INFO kablam! 42 |     let implicit_f = 1.3;
Oct 21 19:43:02.040 INFO kablam!    |         ^^^^^^^^^^ help: consider using `_implicit_f` instead
Oct 21 19:43:02.040 INFO kablam! 
Oct 21 19:43:02.040 INFO kablam! warning: variable `mutable` is assigned to, but never used
Oct 21 19:43:02.041 INFO kablam!   --> src/main.rs:45:13
Oct 21 19:43:02.041 INFO kablam!    |
Oct 21 19:43:02.041 INFO kablam! 45 |     let mut mutable = 1;
Oct 21 19:43:02.041 INFO kablam!    |             ^^^^^^^
Oct 21 19:43:02.042 INFO kablam!    |
Oct 21 19:43:02.042 INFO kablam!    = note: consider using `_mutable` instead
Oct 21 19:43:02.042 INFO kablam! 
Oct 21 19:43:02.043 INFO kablam! warning: value assigned to `mutable` is never read
Oct 21 19:43:02.043 INFO kablam!   --> src/main.rs:47:5
Oct 21 19:43:02.043 INFO kablam!    |
Oct 21 19:43:02.043 INFO kablam! 47 |     mutable += 2;
Oct 21 19:43:02.044 INFO kablam!    |     ^^^^^^^
Oct 21 19:43:02.044 INFO kablam!    |
Oct 21 19:43:02.044 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 21 19:43:02.045 INFO kablam! 
Oct 21 19:43:02.045 INFO kablam! warning: unused variable: `four_ints`
Oct 21 19:43:02.045 INFO kablam!   --> src/main.rs:71:9
Oct 21 19:43:02.045 INFO kablam!    |
Oct 21 19:43:02.046 INFO kablam! 71 |     let four_ints: [i32; 4] = [1, 2, 3, 4];
Oct 21 19:43:02.046 INFO kablam!    |         ^^^^^^^^^ help: consider using `_four_ints` instead
Oct 21 19:43:02.046 INFO kablam! 
Oct 21 19:43:02.047 INFO kablam! warning: unused variable: `origin`
Oct 21 19:43:02.047 INFO kablam!    --> src/main.rs:108:9
Oct 21 19:43:02.047 INFO kablam!     |
Oct 21 19:43:02.047 INFO kablam! 108 |     let origin = Point { x: 0, y: 0 };
Oct 21 19:43:02.048 INFO kablam!     |         ^^^^^^ help: consider using `_origin` instead
Oct 21 19:43:02.048 INFO kablam! 
Oct 21 19:43:02.048 INFO kablam! warning: unused variable: `origin2`
Oct 21 19:43:02.049 INFO kablam!    --> src/main.rs:113:9
Oct 21 19:43:02.049 INFO kablam!     |
Oct 21 19:43:02.049 INFO kablam! 113 |     let origin2 = Point2(0, 0);
Oct 21 19:43:02.049 INFO kablam!     |         ^^^^^^^ help: consider using `_origin2` instead
Oct 21 19:43:02.050 INFO kablam! 
Oct 21 19:43:02.050 INFO kablam! warning: unused variable: `up`
Oct 21 19:43:02.050 INFO kablam!    --> src/main.rs:144:9
Oct 21 19:43:02.051 INFO kablam!     |
Oct 21 19:43:02.051 INFO kablam! 144 |     let up = Direction::Up;
Oct 21 19:43:02.051 INFO kablam!     |         ^^ help: consider using `_up` instead
Oct 21 19:43:02.051 INFO kablam! 
Oct 21 19:43:02.052 INFO kablam! warning: unused variable: `two`
Oct 21 19:43:02.052 INFO kablam!    --> src/main.rs:152:9
Oct 21 19:43:02.052 INFO kablam!     |
Oct 21 19:43:02.053 INFO kablam! 152 |     let two: OptionalI32 = OptionalI32::AnI32(2);
Oct 21 19:43:02.053 INFO kablam!     |         ^^^ help: consider using `_two` instead
Oct 21 19:43:02.053 INFO kablam! 
Oct 21 19:43:02.053 INFO kablam! warning: unused variable: `nothing`
Oct 21 19:43:02.054 INFO kablam!    --> src/main.rs:153:9
Oct 21 19:43:02.054 INFO kablam!     |
Oct 21 19:43:02.054 INFO kablam! 153 |     let nothing = OptionalI32::Nothing;
Oct 21 19:43:02.054 INFO kablam!     |         ^^^^^^^ help: consider using `_nothing` instead
Oct 21 19:43:02.055 INFO kablam! 
Oct 21 19:43:02.055 INFO kablam! warning: unused variable: `value`
Oct 21 19:43:02.055 INFO kablam!    --> src/main.rs:266:9
Oct 21 19:43:02.056 INFO kablam!     |
Oct 21 19:43:02.060 INFO kablam! 266 |     let value = if true { "good" } else { "bad" };
Oct 21 19:43:02.060 INFO kablam!     |         ^^^^^ help: consider using `_value` instead
Oct 21 19:43:02.061 INFO kablam! 
Oct 21 19:43:02.061 INFO kablam! warning: unused variable: `another_ref_var`
Oct 21 19:43:02.061 INFO kablam!    --> src/main.rs:296:9
Oct 21 19:43:02.061 INFO kablam!     |
Oct 21 19:43:02.062 INFO kablam! 296 |     let another_ref_var = &var;
Oct 21 19:43:02.062 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_another_ref_var` instead
Oct 21 19:43:02.062 INFO kablam! 
Oct 21 19:43:02.072 INFO kablam! warning: variable does not need to be mutable
Oct 21 19:43:02.073 INFO kablam!    --> src/main.rs:294:9
Oct 21 19:43:02.073 INFO kablam!     |
Oct 21 19:43:02.073 INFO kablam! 294 |     let mut var = 4;
Oct 21 19:43:02.074 INFO kablam!     |         ----^^^
Oct 21 19:43:02.074 INFO kablam!     |         |
Oct 21 19:43:02.074 INFO kablam!     |         help: remove this `mut`
Oct 21 19:43:02.074 INFO kablam!     |
Oct 21 19:43:02.075 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 21 19:43:02.075 INFO kablam! 
Oct 21 19:43:02.075 INFO kablam! warning: function is never used: `add_ints`
Oct 21 19:43:02.076 INFO kablam!   --> src/main.rs:17:1
Oct 21 19:43:02.076 INFO kablam!    |
Oct 21 19:43:02.076 INFO kablam! 17 | fn add_ints(x: i32, y: i32) -> i32 {
Oct 21 19:43:02.076 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 19:43:02.077 INFO kablam!    |
Oct 21 19:43:02.077 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 21 19:43:02.077 INFO kablam! 
Oct 21 19:43:02.078 INFO kablam! warning: function is never used: `add_uints`
Oct 21 19:43:02.078 INFO kablam!   --> src/main.rs:23:1
Oct 21 19:43:02.078 INFO kablam!    |
Oct 21 19:43:02.078 INFO kablam! 23 | fn add_uints(x: i32, y: i32) -> i32 {
Oct 21 19:43:02.079 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 19:43:02.079 INFO kablam! 
Oct 21 19:43:02.320 INFO kablam! warning: unused variable: `x`
Oct 21 19:43:02.321 INFO kablam!   --> src/main.rs:32:9
Oct 21 19:43:02.321 INFO kablam!    |
Oct 21 19:43:02.321 INFO kablam! 32 |     let x: i32 = 42;
Oct 21 19:43:02.322 INFO kablam!    |         ^ help: consider using `_x` instead
Oct 21 19:43:02.322 INFO kablam!    |
Oct 21 19:43:02.322 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 21 19:43:02.322 INFO kablam! 
Oct 21 19:43:02.323 INFO kablam! warning: unused variable: `implicit_x`
Oct 21 19:43:02.323 INFO kablam!   --> src/main.rs:41:9
Oct 21 19:43:02.324 INFO kablam!    |
Oct 21 19:43:02.324 INFO kablam! 41 |     let implicit_x = 1;
Oct 21 19:43:02.325 INFO kablam!    |         ^^^^^^^^^^ help: consider using `_implicit_x` instead
Oct 21 19:43:02.325 INFO kablam! 
Oct 21 19:43:02.325 INFO kablam! warning: unused variable: `implicit_f`
Oct 21 19:43:02.325 INFO kablam!   --> src/main.rs:42:9
Oct 21 19:43:02.326 INFO kablam!    |
Oct 21 19:43:02.326 INFO kablam! 42 |     let implicit_f = 1.3;
Oct 21 19:43:02.326 INFO kablam!    |         ^^^^^^^^^^ help: consider using `_implicit_f` instead
Oct 21 19:43:02.327 INFO kablam! 
Oct 21 19:43:02.327 INFO kablam! warning: variable `mutable` is assigned to, but never used
Oct 21 19:43:02.327 INFO kablam!   --> src/main.rs:45:13
Oct 21 19:43:02.327 INFO kablam!    |
Oct 21 19:43:02.328 INFO kablam! 45 |     let mut mutable = 1;
Oct 21 19:43:02.328 INFO kablam!    |             ^^^^^^^
Oct 21 19:43:02.328 INFO kablam!    |
Oct 21 19:43:02.328 INFO kablam!    = note: consider using `_mutable` instead
Oct 21 19:43:02.329 INFO kablam! 
Oct 21 19:43:02.329 INFO kablam! warning: value assigned to `mutable` is never read
Oct 21 19:43:02.329 INFO kablam!   --> src/main.rs:47:5
Oct 21 19:43:02.329 INFO kablam!    |
Oct 21 19:43:02.330 INFO kablam! 47 |     mutable += 2;
Oct 21 19:43:02.330 INFO kablam!    |     ^^^^^^^
Oct 21 19:43:02.330 INFO kablam!    |
Oct 21 19:43:02.331 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 21 19:43:02.331 INFO kablam! 
Oct 21 19:43:02.331 INFO kablam! warning: unused variable: `four_ints`
Oct 21 19:43:02.331 INFO kablam!   --> src/main.rs:71:9
Oct 21 19:43:02.332 INFO kablam!    |
Oct 21 19:43:02.332 INFO kablam! 71 |     let four_ints: [i32; 4] = [1, 2, 3, 4];
Oct 21 19:43:02.332 INFO kablam!    |         ^^^^^^^^^ help: consider using `_four_ints` instead
Oct 21 19:43:02.332 INFO kablam! 
Oct 21 19:43:02.333 INFO kablam! warning: unused variable: `origin`
Oct 21 19:43:02.333 INFO kablam!    --> src/main.rs:108:9
Oct 21 19:43:02.333 INFO kablam!     |
Oct 21 19:43:02.333 INFO kablam! 108 |     let origin = Point { x: 0, y: 0 };
Oct 21 19:43:02.334 INFO kablam!     |         ^^^^^^ help: consider using `_origin` instead
Oct 21 19:43:02.334 INFO kablam! 
Oct 21 19:43:02.334 INFO kablam! warning: unused variable: `origin2`
Oct 21 19:43:02.335 INFO kablam!    --> src/main.rs:113:9
Oct 21 19:43:02.335 INFO kablam!     |
Oct 21 19:43:02.335 INFO kablam! 113 |     let origin2 = Point2(0, 0);
Oct 21 19:43:02.335 INFO kablam!     |         ^^^^^^^ help: consider using `_origin2` instead
Oct 21 19:43:02.336 INFO kablam! 
Oct 21 19:43:02.336 INFO kablam! warning: unused variable: `up`
Oct 21 19:43:02.336 INFO kablam!    --> src/main.rs:144:9
Oct 21 19:43:02.336 INFO kablam!     |
Oct 21 19:43:02.337 INFO kablam! 144 |     let up = Direction::Up;
Oct 21 19:43:02.337 INFO kablam!     |         ^^ help: consider using `_up` instead
Oct 21 19:43:02.337 INFO kablam! 
Oct 21 19:43:02.337 INFO kablam! warning: unused variable: `two`
Oct 21 19:43:02.338 INFO kablam!    --> src/main.rs:152:9
Oct 21 19:43:02.338 INFO kablam!     |
Oct 21 19:43:02.338 INFO kablam! 152 |     let two: OptionalI32 = OptionalI32::AnI32(2);
Oct 21 19:43:02.338 INFO kablam!     |         ^^^ help: consider using `_two` instead
Oct 21 19:43:02.339 INFO kablam! 
Oct 21 19:43:02.339 INFO kablam! warning: unused variable: `nothing`
Oct 21 19:43:02.339 INFO kablam!    --> src/main.rs:153:9
Oct 21 19:43:02.339 INFO kablam!     |
Oct 21 19:43:02.340 INFO kablam! 153 |     let nothing = OptionalI32::Nothing;
Oct 21 19:43:02.340 INFO kablam!     |         ^^^^^^^ help: consider using `_nothing` instead
Oct 21 19:43:02.340 INFO kablam! 
Oct 21 19:43:02.341 INFO kablam! warning: unused variable: `value`
Oct 21 19:43:02.341 INFO kablam!    --> src/main.rs:266:9
Oct 21 19:43:02.341 INFO kablam!     |
Oct 21 19:43:02.341 INFO kablam! 266 |     let value = if true { "good" } else { "bad" };
Oct 21 19:43:02.342 INFO kablam!     |         ^^^^^ help: consider using `_value` instead
Oct 21 19:43:02.342 INFO kablam! 
Oct 21 19:43:02.342 INFO kablam! warning: unused variable: `another_ref_var`
Oct 21 19:43:02.343 INFO kablam!    --> src/main.rs:296:9
Oct 21 19:43:02.343 INFO kablam!     |
Oct 21 19:43:02.343 INFO kablam! 296 |     let another_ref_var = &var;
Oct 21 19:43:02.343 INFO kablam!     |         ^^^^^^^^^^^^^^^ help: consider using `_another_ref_var` instead
Oct 21 19:43:02.344 INFO kablam! 
Oct 21 19:43:02.344 INFO kablam! warning: variable does not need to be mutable
Oct 21 19:43:02.344 INFO kablam!    --> src/main.rs:294:9
Oct 21 19:43:02.344 INFO kablam!     |
Oct 21 19:43:02.345 INFO kablam! 294 |     let mut var = 4;
Oct 21 19:43:02.345 INFO kablam!     |         ----^^^
Oct 21 19:43:02.345 INFO kablam!     |         |
Oct 21 19:43:02.345 INFO kablam!     |         help: remove this `mut`
Oct 21 19:43:02.346 INFO kablam!     |
Oct 21 19:43:02.346 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 21 19:43:02.346 INFO kablam! 
Oct 21 19:43:02.346 INFO kablam! warning: function is never used: `add_ints`
Oct 21 19:43:02.347 INFO kablam!   --> src/main.rs:17:1
Oct 21 19:43:02.347 INFO kablam!    |
Oct 21 19:43:02.347 INFO kablam! 17 | fn add_ints(x: i32, y: i32) -> i32 {
Oct 21 19:43:02.347 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 19:43:02.348 INFO kablam!    |
Oct 21 19:43:02.348 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 21 19:43:02.348 INFO kablam! 
Oct 21 19:43:02.349 INFO kablam! warning: function is never used: `add_uints`
Oct 21 19:43:02.349 INFO kablam!   --> src/main.rs:23:1
Oct 21 19:43:02.349 INFO kablam!    |
Oct 21 19:43:02.349 INFO kablam! 23 | fn add_uints(x: i32, y: i32) -> i32 {
Oct 21 19:43:02.350 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 19:43:02.350 INFO kablam! 
Oct 21 19:43:02.350 INFO kablam! warning: variant is never constructed: `Left`
Oct 21 19:43:02.350 INFO kablam!    --> src/main.rs:138:9
Oct 21 19:43:02.351 INFO kablam!     |
Oct 21 19:43:02.351 INFO kablam! 138 |         Left,
Oct 21 19:43:02.351 INFO kablam!     |         ^^^^
Oct 21 19:43:02.351 INFO kablam! 
Oct 21 19:43:02.352 INFO kablam! warning: variant is never constructed: `Right`
Oct 21 19:43:02.352 INFO kablam!    --> src/main.rs:139:9
Oct 21 19:43:02.352 INFO kablam!     |
Oct 21 19:43:02.353 INFO kablam! 139 |         Right,
Oct 21 19:43:02.353 INFO kablam!     |         ^^^^^
Oct 21 19:43:02.353 INFO kablam! 
Oct 21 19:43:02.353 INFO kablam! warning: variant is never constructed: `Down`
Oct 21 19:43:02.354 INFO kablam!    --> src/main.rs:141:9
Oct 21 19:43:02.354 INFO kablam!     |
Oct 21 19:43:02.354 INFO kablam! 141 |         Down,
Oct 21 19:43:02.354 INFO kablam!     |         ^^^^
Oct 21 19:43:02.355 INFO kablam! 
Oct 21 19:43:02.355 INFO kablam! warning: method is never used: `new`
Oct 21 19:43:02.355 INFO kablam!    --> src/main.rs:158:9
Oct 21 19:43:02.355 INFO kablam!     |
Oct 21 19:43:02.356 INFO kablam! 158 |         fn new(x: i32) -> OptionalI32 {
Oct 21 19:43:02.356 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 19:43:02.356 INFO kablam! 
Oct 21 19:43:02.357 INFO kablam! warning: struct is never constructed: `Foo`
Oct 21 19:43:02.357 INFO kablam!    --> src/main.rs:211:5
Oct 21 19:43:02.357 INFO kablam!     |
Oct 21 19:43:02.357 INFO kablam! 211 |     struct Foo<T> {
Oct 21 19:43:02.358 INFO kablam!     |     ^^^^^^^^^^^^^
Oct 21 19:43:02.358 INFO kablam! 
Oct 21 19:43:02.358 INFO kablam! warning: function is never used: `identity`
Oct 21 19:43:02.358 INFO kablam!    --> src/main.rs:215:5
Oct 21 19:43:02.359 INFO kablam!     |
Oct 21 19:43:02.359 INFO kablam! 215 |     fn identity<T>(x: T) -> T {
Oct 21 19:43:02.359 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 19:43:02.359 INFO kablam! 
Oct 21 19:43:02.373 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
Oct 21 19:43:02.375 INFO kablam! su: No module specific data is present
Oct 21 19:43:03.281 INFO running `"docker" "rm" "-f" "24615c013623c93e52ff75d1b12a9ac473be52264f52090f45ab4351c087d196"`
Oct 21 19:43:03.548 INFO blam! 24615c013623c93e52ff75d1b12a9ac473be52264f52090f45ab4351c087d196