Dec 18 08:11:21.209 INFO checking CharlesGe129/learn_rust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:11:21.209 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/CharlesGe129/learn_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:11:21.806 INFO [stdout] 2339bc35aa132fa3c50c3cd96cb7ccdc9b2abf5bc85632ec6db5fef3dd91491d
Dec 18 08:11:21.812 INFO running `"docker" "start" "-a" "2339bc35aa132fa3c50c3cd96cb7ccdc9b2abf5bc85632ec6db5fef3dd91491d"`
Dec 18 08:11:22.905 INFO [stderr]     Checking learn_rust v0.1.0 (/opt/crater/workdir)
Dec 18 08:11:23.549 INFO [stderr] warning: unreachable statement
Dec 18 08:11:23.549 INFO [stderr]   --> src/control_flow.rs:31:9
Dec 18 08:11:23.549 INFO [stderr]    |
Dec 18 08:11:23.549 INFO [stderr] 31 |         println!("No print, outer has been break");
Dec 18 08:11:23.550 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:23.550 INFO [stderr] warning: unreachable statement
Dec 18 08:11:23.550 INFO [stderr]   --> src/control_flow.rs:31:9
Dec 18 08:11:23.550 INFO [stderr]    |
Dec 18 08:11:23.550 INFO [stderr] 31 |         println!("No print, outer has been break");
Dec 18 08:11:23.550 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:11:23.550 INFO [stderr]    |
Dec 18 08:11:23.550 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 18 08:11:23.550 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:11:23.550 INFO [stderr] 
Dec 18 08:11:23.560 INFO [stderr]    |
Dec 18 08:11:23.560 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 18 08:11:23.560 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 08:11:23.560 INFO [stderr] 
Dec 18 08:11:23.588 INFO [stderr] warning: unused variable: `v`
Dec 18 08:11:23.588 INFO [stderr]  --> src/array.rs:6:9
Dec 18 08:11:23.588 INFO [stderr]   |
Dec 18 08:11:23.588 INFO [stderr] 6 |     let v: Vec<i32> = Vec::new();
Dec 18 08:11:23.588 INFO [stderr]   |         ^ help: consider using `_v` instead
Dec 18 08:11:23.588 INFO [stderr]   |
Dec 18 08:11:23.588 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:11:23.588 INFO [stderr] 
Dec 18 08:11:23.588 INFO [stderr] warning: unused variable: `v`
Dec 18 08:11:23.588 INFO [stderr]  --> src/array.rs:7:9
Dec 18 08:11:23.589 INFO [stderr]   |
Dec 18 08:11:23.589 INFO [stderr] 7 |     let v: Vec<i32> = vec![];
Dec 18 08:11:23.589 INFO [stderr]   |         ^ help: consider using `_v` instead
Dec 18 08:11:23.589 INFO [stderr] 
Dec 18 08:11:23.589 INFO [stderr] warning: unused variable: `hello`
Dec 18 08:11:23.589 INFO [stderr]  --> src/str.rs:2:9
Dec 18 08:11:23.589 INFO [stderr]   |
Dec 18 08:11:23.589 INFO [stderr] 2 |     let hello = "hello world!";
Dec 18 08:11:23.589 INFO [stderr]   |         ^^^^^ help: consider using `_hello` instead
Dec 18 08:11:23.589 INFO [stderr] 
Dec 18 08:11:23.589 INFO [stderr] warning: unused variable: `hello`
Dec 18 08:11:23.589 INFO [stderr]  --> src/str.rs:4:9
Dec 18 08:11:23.589 INFO [stderr]   |
Dec 18 08:11:23.589 INFO [stderr] 4 |     let hello: &'static str = "hello world!";
Dec 18 08:11:23.589 INFO [stderr]   |         ^^^^^ help: consider using `_hello` instead
Dec 18 08:11:23.589 INFO [stderr] 
Dec 18 08:11:23.589 INFO [stderr] warning: value assigned to `hello` is never read
Dec 18 08:11:23.589 INFO [stderr]  --> src/str.rs:6:13
Dec 18 08:11:23.589 INFO [stderr]   |
Dec 18 08:11:23.589 INFO [stderr] 6 |     let mut hello = String::new();
Dec 18 08:11:23.589 INFO [stderr]   |             ^^^^^
Dec 18 08:11:23.589 INFO [stderr]   |
Dec 18 08:11:23.589 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 18 08:11:23.589 INFO [stderr] 
Dec 18 08:11:23.589 INFO [stderr] warning: unused variable: `point`
Dec 18 08:11:23.589 INFO [stderr]  --> src/struct.rs:9:9
Dec 18 08:11:23.589 INFO [stderr]   |
Dec 18 08:11:23.589 INFO [stderr] 9 |     let point = Point{x: 1, y: 2};
Dec 18 08:11:23.589 INFO [stderr]   |         ^^^^^ help: consider using `_point` instead
Dec 18 08:11:23.589 INFO [stderr] 
Dec 18 08:11:23.589 INFO [stderr] warning: unused variable: `green`
Dec 18 08:11:23.589 INFO [stderr]   --> src/struct.rs:14:20
Dec 18 08:11:23.589 INFO [stderr]    |
Dec 18 08:11:23.589 INFO [stderr] 14 |     let Color(red, green, blue) = android_green;
Dec 18 08:11:23.589 INFO [stderr]    |                    ^^^^^ help: consider using `_green` instead
Dec 18 08:11:23.589 INFO [stderr] 
Dec 18 08:11:23.589 INFO [stderr] warning: unused variable: `blue`
Dec 18 08:11:23.589 INFO [stderr]   --> src/struct.rs:14:27
Dec 18 08:11:23.589 INFO [stderr]    |
Dec 18 08:11:23.589 INFO [stderr] 14 |     let Color(red, green, blue) = android_green;
Dec 18 08:11:23.589 INFO [stderr]    |                           ^^^^ help: consider using `_blue` instead
Dec 18 08:11:23.589 INFO [stderr] 
Dec 18 08:11:23.596 INFO [stderr] warning: unused variable: `v`
Dec 18 08:11:23.596 INFO [stderr]  --> src/array.rs:6:9
Dec 18 08:11:23.596 INFO [stderr]   |
Dec 18 08:11:23.596 INFO [stderr] 6 |     let v: Vec<i32> = Vec::new();
Dec 18 08:11:23.596 INFO [stderr]   |         ^ help: consider using `_v` instead
Dec 18 08:11:23.600 INFO [stderr]   |
Dec 18 08:11:23.604 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:11:23.604 INFO [stderr] 
Dec 18 08:11:23.604 INFO [stderr] warning: unused variable: `v`
Dec 18 08:11:23.604 INFO [stderr]  --> src/array.rs:7:9
Dec 18 08:11:23.604 INFO [stderr]   |
Dec 18 08:11:23.604 INFO [stderr] 7 |     let v: Vec<i32> = vec![];
Dec 18 08:11:23.604 INFO [stderr]   |         ^ help: consider using `_v` instead
Dec 18 08:11:23.604 INFO [stderr] 
Dec 18 08:11:23.604 INFO [stderr] warning: unused variable: `hello`
Dec 18 08:11:23.604 INFO [stderr]  --> src/str.rs:2:9
Dec 18 08:11:23.604 INFO [stderr]   |
Dec 18 08:11:23.604 INFO [stderr] 2 |     let hello = "hello world!";
Dec 18 08:11:23.604 INFO [stderr]   |         ^^^^^ help: consider using `_hello` instead
Dec 18 08:11:23.604 INFO [stderr] 
Dec 18 08:11:23.604 INFO [stderr] warning: unused variable: `hello`
Dec 18 08:11:23.604 INFO [stderr]  --> src/str.rs:4:9
Dec 18 08:11:23.604 INFO [stderr]   |
Dec 18 08:11:23.604 INFO [stderr] 4 |     let hello: &'static str = "hello world!";
Dec 18 08:11:23.604 INFO [stderr]   |         ^^^^^ help: consider using `_hello` instead
Dec 18 08:11:23.604 INFO [stderr] 
Dec 18 08:11:23.604 INFO [stderr] warning: value assigned to `hello` is never read
Dec 18 08:11:23.604 INFO [stderr]  --> src/str.rs:6:13
Dec 18 08:11:23.604 INFO [stderr]   |
Dec 18 08:11:23.604 INFO [stderr] 6 |     let mut hello = String::new();
Dec 18 08:11:23.604 INFO [stderr]   |             ^^^^^
Dec 18 08:11:23.604 INFO [stderr]   |
Dec 18 08:11:23.604 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 18 08:11:23.604 INFO [stderr] 
Dec 18 08:11:23.604 INFO [stderr] warning: unused variable: `point`
Dec 18 08:11:23.604 INFO [stderr]  --> src/struct.rs:9:9
Dec 18 08:11:23.604 INFO [stderr]   |
Dec 18 08:11:23.604 INFO [stderr] 9 |     let point = Point{x: 1, y: 2};
Dec 18 08:11:23.604 INFO [stderr]   |         ^^^^^ help: consider using `_point` instead
Dec 18 08:11:23.605 INFO [stderr] 
Dec 18 08:11:23.605 INFO [stderr] warning: unused variable: `green`
Dec 18 08:11:23.605 INFO [stderr]   --> src/struct.rs:14:20
Dec 18 08:11:23.605 INFO [stderr]    |
Dec 18 08:11:23.605 INFO [stderr] 14 |     let Color(red, green, blue) = android_green;
Dec 18 08:11:23.605 INFO [stderr]    |                    ^^^^^ help: consider using `_green` instead
Dec 18 08:11:23.605 INFO [stderr] 
Dec 18 08:11:23.605 INFO [stderr] warning: unused variable: `blue`
Dec 18 08:11:23.605 INFO [stderr]   --> src/struct.rs:14:27
Dec 18 08:11:23.605 INFO [stderr]    |
Dec 18 08:11:23.605 INFO [stderr] 14 |     let Color(red, green, blue) = android_green;
Dec 18 08:11:23.605 INFO [stderr]    |                           ^^^^ help: consider using `_blue` instead
Dec 18 08:11:23.605 INFO [stderr] 
Dec 18 08:11:23.629 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:23.629 INFO [stderr]  --> src/array.rs:2:9
Dec 18 08:11:23.629 INFO [stderr]   |
Dec 18 08:11:23.629 INFO [stderr] 2 |     let mut array: [i32; 3] = [0; 3];
Dec 18 08:11:23.629 INFO [stderr]   |         ----^^^^^
Dec 18 08:11:23.629 INFO [stderr]   |         |
Dec 18 08:11:23.629 INFO [stderr]   |         help: remove this `mut`
Dec 18 08:11:23.629 INFO [stderr]   |
Dec 18 08:11:23.629 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 08:11:23.629 INFO [stderr] 
Dec 18 08:11:23.632 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:11:23.632 INFO [stderr]  --> src/array.rs:2:9
Dec 18 08:11:23.632 INFO [stderr]   |
Dec 18 08:11:23.632 INFO [stderr] 2 |     let mut array: [i32; 3] = [0; 3];
Dec 18 08:11:23.632 INFO [stderr]   |         ----^^^^^
Dec 18 08:11:23.632 INFO [stderr]   |         |
Dec 18 08:11:23.632 INFO [stderr]   |         help: remove this `mut`
Dec 18 08:11:23.632 INFO [stderr]   |
Dec 18 08:11:23.632 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 08:11:23.632 INFO [stderr] 
Dec 18 08:11:23.652 INFO [stderr] warning: field is never used: `x`
Dec 18 08:11:23.652 INFO [stderr]  --> src/struct.rs:5:9
Dec 18 08:11:23.652 INFO [stderr]   |
Dec 18 08:11:23.652 INFO [stderr] 5 |         x: i32,
Dec 18 08:11:23.652 INFO [stderr]   |         ^^^^^^
Dec 18 08:11:23.652 INFO [stderr]   |
Dec 18 08:11:23.652 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 08:11:23.652 INFO [stderr] 
Dec 18 08:11:23.652 INFO [stderr] warning: field is never used: `y`
Dec 18 08:11:23.652 INFO [stderr]  --> src/struct.rs:6:9
Dec 18 08:11:23.652 INFO [stderr]   |
Dec 18 08:11:23.652 INFO [stderr] 6 |         y: i32,
Dec 18 08:11:23.652 INFO [stderr]   |         ^^^^^^
Dec 18 08:11:23.652 INFO [stderr] 
Dec 18 08:11:23.652 INFO [stderr] warning: field is never used: `x`
Dec 18 08:11:23.652 INFO [stderr]   --> src/struct.rs:45:9
Dec 18 08:11:23.652 INFO [stderr]    |
Dec 18 08:11:23.652 INFO [stderr] 45 |         x: i32,
Dec 18 08:11:23.652 INFO [stderr]    |         ^^^^^^
Dec 18 08:11:23.652 INFO [stderr] 
Dec 18 08:11:23.656 INFO [stderr] warning: type `Point_mut` should have a camel case name such as `PointMut`
Dec 18 08:11:23.656 INFO [stderr]   --> src/struct.rs:44:5
Dec 18 08:11:23.656 INFO [stderr]    |
Dec 18 08:11:23.656 INFO [stderr] 44 | /     struct Point_mut {
Dec 18 08:11:23.656 INFO [stderr] 45 | |         x: i32,
Dec 18 08:11:23.656 INFO [stderr] 46 | |         y: Cell<i32>,
Dec 18 08:11:23.656 INFO [stderr] 47 | |     }
Dec 18 08:11:23.657 INFO [stderr]    | |_____^
Dec 18 08:11:23.657 INFO [stderr]    |
Dec 18 08:11:23.657 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 18 08:11:23.657 INFO [stderr] 
Dec 18 08:11:23.673 INFO [stderr] warning: field is never used: `x`
Dec 18 08:11:23.673 INFO [stderr]  --> src/struct.rs:5:9
Dec 18 08:11:23.673 INFO [stderr]   |
Dec 18 08:11:23.673 INFO [stderr] 5 |         x: i32,
Dec 18 08:11:23.673 INFO [stderr]   |         ^^^^^^
Dec 18 08:11:23.684 INFO [stderr]   |
Dec 18 08:11:23.684 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 08:11:23.684 INFO [stderr] 
Dec 18 08:11:23.684 INFO [stderr] warning: field is never used: `y`
Dec 18 08:11:23.684 INFO [stderr]  --> src/struct.rs:6:9
Dec 18 08:11:23.684 INFO [stderr]   |
Dec 18 08:11:23.684 INFO [stderr] 6 |         y: i32,
Dec 18 08:11:23.684 INFO [stderr]   |         ^^^^^^
Dec 18 08:11:23.684 INFO [stderr] 
Dec 18 08:11:23.684 INFO [stderr] warning: field is never used: `x`
Dec 18 08:11:23.684 INFO [stderr]   --> src/struct.rs:45:9
Dec 18 08:11:23.684 INFO [stderr]    |
Dec 18 08:11:23.684 INFO [stderr] 45 |         x: i32,
Dec 18 08:11:23.684 INFO [stderr]    |         ^^^^^^
Dec 18 08:11:23.684 INFO [stderr] 
Dec 18 08:11:23.684 INFO [stderr] warning: type `Point_mut` should have a camel case name such as `PointMut`
Dec 18 08:11:23.684 INFO [stderr]   --> src/struct.rs:44:5
Dec 18 08:11:23.684 INFO [stderr]    |
Dec 18 08:11:23.684 INFO [stderr] 44 | /     struct Point_mut {
Dec 18 08:11:23.684 INFO [stderr] 45 | |         x: i32,
Dec 18 08:11:23.684 INFO [stderr] 46 | |         y: Cell<i32>,
Dec 18 08:11:23.684 INFO [stderr] 47 | |     }
Dec 18 08:11:23.684 INFO [stderr]    | |_____^
Dec 18 08:11:23.684 INFO [stderr]    |
Dec 18 08:11:23.684 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 18 08:11:23.684 INFO [stderr] 
Dec 18 08:11:23.756 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Dec 18 08:11:24.569 INFO running `"docker" "inspect" "2339bc35aa132fa3c50c3cd96cb7ccdc9b2abf5bc85632ec6db5fef3dd91491d"`
Dec 18 08:11:24.860 INFO running `"docker" "rm" "-f" "2339bc35aa132fa3c50c3cd96cb7ccdc9b2abf5bc85632ec6db5fef3dd91491d"`
Dec 18 08:11:25.228 INFO [stdout] 2339bc35aa132fa3c50c3cd96cb7ccdc9b2abf5bc85632ec6db5fef3dd91491d