Dec 05 22:09:46.961 INFO testing guni973/learn_rust against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 22:09:46.961 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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"`
Dec 05 22:09:47.354 INFO [stdout] 1388ff18290ba3c7afd7fbff08e68ce198197db4017565a839be42d8306c2a91
Dec 05 22:09:47.360 INFO running `"docker" "start" "-a" "1388ff18290ba3c7afd7fbff08e68ce198197db4017565a839be42d8306c2a91"`
Dec 05 22:09:48.455 INFO [stderr] usermod: no changes
Dec 05 22:09:48.520 INFO [stderr]    Compiling hello_world v0.1.0 (/source)
Dec 05 22:09:48.824 INFO [stderr] warning: unreachable statement
Dec 05 22:09:48.824 INFO [stderr]    --> src/main.rs:102:5
Dec 05 22:09:48.824 INFO [stderr]     |
Dec 05 22:09:48.824 INFO [stderr] 102 |     let mut x = 5;
Dec 05 22:09:48.824 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 05 22:09:48.824 INFO [stderr]     |
Dec 05 22:09:48.824 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 05 22:09:48.824 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `a`
Dec 05 22:09:48.841 INFO [stderr]  --> src/main.rs:6:9
Dec 05 22:09:48.841 INFO [stderr]   |
Dec 05 22:09:48.841 INFO [stderr] 6 |     let a = 5;
Dec 05 22:09:48.841 INFO [stderr]   |         ^ help: consider using `_a` instead
Dec 05 22:09:48.841 INFO [stderr]   |
Dec 05 22:09:48.841 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 22:09:48.841 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `b`
Dec 05 22:09:48.841 INFO [stderr]  --> src/main.rs:8:9
Dec 05 22:09:48.841 INFO [stderr]   |
Dec 05 22:09:48.841 INFO [stderr] 8 |     let b: i32 = 5;
Dec 05 22:09:48.841 INFO [stderr]   |         ^ help: consider using `_b` instead
Dec 05 22:09:48.841 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `c`
Dec 05 22:09:48.841 INFO [stderr]   --> src/main.rs:10:9
Dec 05 22:09:48.841 INFO [stderr]    |
Dec 05 22:09:48.841 INFO [stderr] 10 |     let c: u32 = 5;
Dec 05 22:09:48.841 INFO [stderr]    |         ^ help: consider using `_c` instead
Dec 05 22:09:48.841 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `d`
Dec 05 22:09:48.841 INFO [stderr]   --> src/main.rs:12:13
Dec 05 22:09:48.841 INFO [stderr]    |
Dec 05 22:09:48.841 INFO [stderr] 12 |     let mut d = 5;
Dec 05 22:09:48.841 INFO [stderr]    |             ^ help: consider using `_d` instead
Dec 05 22:09:48.841 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:48.841 INFO [stderr]   --> src/main.rs:19:10
Dec 05 22:09:48.841 INFO [stderr]    |
Dec 05 22:09:48.841 INFO [stderr] 19 |     let (x, y) = (1, 2);
Dec 05 22:09:48.841 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 05 22:09:48.841 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:48.841 INFO [stderr]   --> src/main.rs:19:13
Dec 05 22:09:48.841 INFO [stderr]    |
Dec 05 22:09:48.841 INFO [stderr] 19 |     let (x, y) = (1, 2);
Dec 05 22:09:48.841 INFO [stderr]    |             ^ help: consider using `_y` instead
Dec 05 22:09:48.841 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:48.841 INFO [stderr]   --> src/main.rs:38:9
Dec 05 22:09:48.841 INFO [stderr]    |
Dec 05 22:09:48.841 INFO [stderr] 38 |     let x = true;
Dec 05 22:09:48.841 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:48.841 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:48.841 INFO [stderr]   --> src/main.rs:39:9
Dec 05 22:09:48.841 INFO [stderr]    |
Dec 05 22:09:48.841 INFO [stderr] 39 |     let y: bool = false;
Dec 05 22:09:48.841 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 05 22:09:48.841 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:48.841 INFO [stderr]   --> src/main.rs:44:9
Dec 05 22:09:48.841 INFO [stderr]    |
Dec 05 22:09:48.841 INFO [stderr] 44 |     let x = 'x';
Dec 05 22:09:48.841 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:48.841 INFO [stderr] 
Dec 05 22:09:48.841 INFO [stderr] warning: unused variable: `two_hearts`
Dec 05 22:09:48.841 INFO [stderr]   --> src/main.rs:45:9
Dec 05 22:09:48.841 INFO [stderr]    |
Dec 05 22:09:48.841 INFO [stderr] 45 |     let two_hearts = '¶';
Dec 05 22:09:48.842 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_two_hearts` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:48:9
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 48 |     let x = 42; // xはi32型を持つ
Dec 05 22:09:48.842 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:49:9
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 49 |     let y = 1.0; // yはf64型を持つ
Dec 05 22:09:48.842 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `a`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:52:9
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 52 |     let a = [0, 1, 2, 3, 4];
Dec 05 22:09:48.842 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `m`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:53:13
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 53 |     let mut m = [1, 2, 3];
Dec 05 22:09:48.842 INFO [stderr]    |             ^ help: consider using `_m` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `complete`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:60:9
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 60 |     let complete = &a[..];
Dec 05 22:09:48.842 INFO [stderr]    |         ^^^^^^^^ help: consider using `_complete` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `middle`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:62:9
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 62 |     let middle = &a[1..4];
Dec 05 22:09:48.842 INFO [stderr]    |         ^^^^^^ help: consider using `_middle` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:67:9
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 67 |     let x = (1, "hello");
Dec 05 22:09:48.842 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:68:9
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 68 |     let x: (i32, &str) = (1, "hello");
Dec 05 22:09:48.842 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: variable `x` is assigned to, but never used
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:70:13
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 70 |     let mut x = (1, 2);
Dec 05 22:09:48.842 INFO [stderr]    |             ^
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr]    = note: consider using `_x` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: value assigned to `x` is never read
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:72:5
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 72 |     x = y;
Dec 05 22:09:48.842 INFO [stderr]    |     ^
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:74:10
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Dec 05 22:09:48.842 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:74:13
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Dec 05 22:09:48.842 INFO [stderr]    |             ^ help: consider using `_y` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `z`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:74:16
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Dec 05 22:09:48.842 INFO [stderr]    |                ^ help: consider using `_z` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.842 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:48.842 INFO [stderr]   --> src/main.rs:93:9
Dec 05 22:09:48.842 INFO [stderr]    |
Dec 05 22:09:48.842 INFO [stderr] 93 |     let y = if x == 5 { 10 } else { 15 };
Dec 05 22:09:48.842 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 05 22:09:48.842 INFO [stderr] 
Dec 05 22:09:48.843 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:09:48.843 INFO [stderr]   --> src/main.rs:12:9
Dec 05 22:09:48.843 INFO [stderr]    |
Dec 05 22:09:48.843 INFO [stderr] 12 |     let mut d = 5;
Dec 05 22:09:48.843 INFO [stderr]    |         ----^
Dec 05 22:09:48.843 INFO [stderr]    |         |
Dec 05 22:09:48.843 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:09:48.843 INFO [stderr]    |
Dec 05 22:09:48.843 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 22:09:48.843 INFO [stderr] 
Dec 05 22:09:48.843 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:09:48.843 INFO [stderr]   --> src/main.rs:53:9
Dec 05 22:09:48.843 INFO [stderr]    |
Dec 05 22:09:48.843 INFO [stderr] 53 |     let mut m = [1, 2, 3];
Dec 05 22:09:48.843 INFO [stderr]    |         ----^
Dec 05 22:09:48.843 INFO [stderr]    |         |
Dec 05 22:09:48.843 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:09:48.843 INFO [stderr] 
Dec 05 22:09:48.850 INFO [stderr] warning: function is never used: `declartion`
Dec 05 22:09:48.850 INFO [stderr]  --> src/main.rs:3:1
Dec 05 22:09:48.850 INFO [stderr]   |
Dec 05 22:09:48.850 INFO [stderr] 3 | fn declartion () {
Dec 05 22:09:48.850 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 05 22:09:48.850 INFO [stderr]   |
Dec 05 22:09:48.850 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 22:09:48.850 INFO [stderr] 
Dec 05 22:09:48.850 INFO [stderr] warning: function is never used: `print_number`
Dec 05 22:09:48.850 INFO [stderr]   --> src/main.rs:26:1
Dec 05 22:09:48.850 INFO [stderr]    |
Dec 05 22:09:48.850 INFO [stderr] 26 | fn print_number(x: i32) {
Dec 05 22:09:48.850 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 22:09:48.850 INFO [stderr] 
Dec 05 22:09:48.850 INFO [stderr] warning: function is never used: `add_one`
Dec 05 22:09:48.850 INFO [stderr]   --> src/main.rs:31:1
Dec 05 22:09:48.850 INFO [stderr]    |
Dec 05 22:09:48.850 INFO [stderr] 31 | fn add_one(x: i32) -> i32 {
Dec 05 22:09:48.850 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 22:09:48.850 INFO [stderr] 
Dec 05 22:09:48.850 INFO [stderr] warning: function is never used: `primitive`
Dec 05 22:09:48.850 INFO [stderr]   --> src/main.rs:36:1
Dec 05 22:09:48.850 INFO [stderr]    |
Dec 05 22:09:48.850 INFO [stderr] 36 | fn primitive() {
Dec 05 22:09:48.850 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 05 22:09:48.850 INFO [stderr] 
Dec 05 22:09:48.852 INFO [stderr] warning: function is never used: `if_demo`
Dec 05 22:09:48.852 INFO [stderr]   --> src/main.rs:80:1
Dec 05 22:09:48.852 INFO [stderr]    |
Dec 05 22:09:48.852 INFO [stderr] 80 | fn if_demo() {
Dec 05 22:09:48.852 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 22:09:48.852 INFO [stderr] 
Dec 05 22:09:48.852 INFO [stderr] warning: function is never used: `loop_demo`
Dec 05 22:09:48.852 INFO [stderr]   --> src/main.rs:97:1
Dec 05 22:09:48.852 INFO [stderr]    |
Dec 05 22:09:48.852 INFO [stderr] 97 | fn loop_demo () {
Dec 05 22:09:48.852 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 05 22:09:48.852 INFO [stderr] 
Dec 05 22:09:49.053 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 05 22:09:49.058 INFO [stderr] su: No module specific data is present
Dec 05 22:09:49.631 INFO running `"docker" "inspect" "1388ff18290ba3c7afd7fbff08e68ce198197db4017565a839be42d8306c2a91"`
Dec 05 22:09:49.799 INFO running `"docker" "rm" "-f" "1388ff18290ba3c7afd7fbff08e68ce198197db4017565a839be42d8306c2a91"`
Dec 05 22:09:50.056 INFO [stdout] 1388ff18290ba3c7afd7fbff08e68ce198197db4017565a839be42d8306c2a91
Dec 05 22:09:50.061 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-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"`
Dec 05 22:09:50.446 INFO [stdout] acb304be877fa9117df7a1b9fd09623034feff408ba3393e8d7fa9a6e05b50c2
Dec 05 22:09:50.456 INFO running `"docker" "start" "-a" "acb304be877fa9117df7a1b9fd09623034feff408ba3393e8d7fa9a6e05b50c2"`
Dec 05 22:09:51.391 INFO [stderr] usermod: no changes
Dec 05 22:09:51.412 INFO [stderr]    Compiling hello_world v0.1.0 (/source)
Dec 05 22:09:51.798 INFO [stderr] warning: unreachable statement
Dec 05 22:09:51.798 INFO [stderr]    --> src/main.rs:102:5
Dec 05 22:09:51.798 INFO [stderr]     |
Dec 05 22:09:51.798 INFO [stderr] 102 |     let mut x = 5;
Dec 05 22:09:51.799 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 05 22:09:51.799 INFO [stderr]     |
Dec 05 22:09:51.799 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 05 22:09:51.799 INFO [stderr] 
Dec 05 22:09:51.816 INFO [stderr] warning: unused variable: `a`
Dec 05 22:09:51.816 INFO [stderr]  --> src/main.rs:6:9
Dec 05 22:09:51.816 INFO [stderr]   |
Dec 05 22:09:51.816 INFO [stderr] 6 |     let a = 5;
Dec 05 22:09:51.816 INFO [stderr]   |         ^ help: consider using `_a` instead
Dec 05 22:09:51.816 INFO [stderr]   |
Dec 05 22:09:51.816 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 22:09:51.816 INFO [stderr] 
Dec 05 22:09:51.816 INFO [stderr] warning: unused variable: `b`
Dec 05 22:09:51.816 INFO [stderr]  --> src/main.rs:8:9
Dec 05 22:09:51.816 INFO [stderr]   |
Dec 05 22:09:51.816 INFO [stderr] 8 |     let b: i32 = 5;
Dec 05 22:09:51.816 INFO [stderr]   |         ^ help: consider using `_b` instead
Dec 05 22:09:51.816 INFO [stderr] 
Dec 05 22:09:51.816 INFO [stderr] warning: unused variable: `c`
Dec 05 22:09:51.816 INFO [stderr]   --> src/main.rs:10:9
Dec 05 22:09:51.816 INFO [stderr]    |
Dec 05 22:09:51.816 INFO [stderr] 10 |     let c: u32 = 5;
Dec 05 22:09:51.816 INFO [stderr]    |         ^ help: consider using `_c` instead
Dec 05 22:09:51.816 INFO [stderr] 
Dec 05 22:09:51.816 INFO [stderr] warning: unused variable: `d`
Dec 05 22:09:51.816 INFO [stderr]   --> src/main.rs:12:13
Dec 05 22:09:51.816 INFO [stderr]    |
Dec 05 22:09:51.816 INFO [stderr] 12 |     let mut d = 5;
Dec 05 22:09:51.816 INFO [stderr]    |             ^ help: consider using `_d` instead
Dec 05 22:09:51.816 INFO [stderr] 
Dec 05 22:09:51.816 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:51.816 INFO [stderr]   --> src/main.rs:19:10
Dec 05 22:09:51.816 INFO [stderr]    |
Dec 05 22:09:51.816 INFO [stderr] 19 |     let (x, y) = (1, 2);
Dec 05 22:09:51.816 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 05 22:09:51.816 INFO [stderr] 
Dec 05 22:09:51.816 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:51.816 INFO [stderr]   --> src/main.rs:19:13
Dec 05 22:09:51.816 INFO [stderr]    |
Dec 05 22:09:51.816 INFO [stderr] 19 |     let (x, y) = (1, 2);
Dec 05 22:09:51.816 INFO [stderr]    |             ^ help: consider using `_y` instead
Dec 05 22:09:51.816 INFO [stderr] 
Dec 05 22:09:51.816 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:51.816 INFO [stderr]   --> src/main.rs:38:9
Dec 05 22:09:51.816 INFO [stderr]    |
Dec 05 22:09:51.816 INFO [stderr] 38 |     let x = true;
Dec 05 22:09:51.817 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:39:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 39 |     let y: bool = false;
Dec 05 22:09:51.817 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:44:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 44 |     let x = 'x';
Dec 05 22:09:51.817 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `two_hearts`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:45:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 45 |     let two_hearts = '¶';
Dec 05 22:09:51.817 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_two_hearts` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:48:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 48 |     let x = 42; // xはi32型を持つ
Dec 05 22:09:51.817 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:49:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 49 |     let y = 1.0; // yはf64型を持つ
Dec 05 22:09:51.817 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `a`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:52:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 52 |     let a = [0, 1, 2, 3, 4];
Dec 05 22:09:51.817 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `m`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:53:13
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 53 |     let mut m = [1, 2, 3];
Dec 05 22:09:51.817 INFO [stderr]    |             ^ help: consider using `_m` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `complete`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:60:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 60 |     let complete = &a[..];
Dec 05 22:09:51.817 INFO [stderr]    |         ^^^^^^^^ help: consider using `_complete` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `middle`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:62:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 62 |     let middle = &a[1..4];
Dec 05 22:09:51.817 INFO [stderr]    |         ^^^^^^ help: consider using `_middle` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:67:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 67 |     let x = (1, "hello");
Dec 05 22:09:51.817 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:68:9
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 68 |     let x: (i32, &str) = (1, "hello");
Dec 05 22:09:51.817 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: variable `x` is assigned to, but never used
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:70:13
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 70 |     let mut x = (1, 2);
Dec 05 22:09:51.817 INFO [stderr]    |             ^
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr]    = note: consider using `_x` instead
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: value assigned to `x` is never read
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:72:5
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr] 72 |     x = y;
Dec 05 22:09:51.817 INFO [stderr]    |     ^
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.817 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 05 22:09:51.817 INFO [stderr] 
Dec 05 22:09:51.817 INFO [stderr] warning: unused variable: `x`
Dec 05 22:09:51.817 INFO [stderr]   --> src/main.rs:74:10
Dec 05 22:09:51.817 INFO [stderr]    |
Dec 05 22:09:51.818 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Dec 05 22:09:51.818 INFO [stderr]    |          ^ help: consider using `_x` instead
Dec 05 22:09:51.818 INFO [stderr] 
Dec 05 22:09:51.818 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:51.818 INFO [stderr]   --> src/main.rs:74:13
Dec 05 22:09:51.818 INFO [stderr]    |
Dec 05 22:09:51.818 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Dec 05 22:09:51.818 INFO [stderr]    |             ^ help: consider using `_y` instead
Dec 05 22:09:51.818 INFO [stderr] 
Dec 05 22:09:51.818 INFO [stderr] warning: unused variable: `z`
Dec 05 22:09:51.818 INFO [stderr]   --> src/main.rs:74:16
Dec 05 22:09:51.818 INFO [stderr]    |
Dec 05 22:09:51.818 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Dec 05 22:09:51.818 INFO [stderr]    |                ^ help: consider using `_z` instead
Dec 05 22:09:51.818 INFO [stderr] 
Dec 05 22:09:51.818 INFO [stderr] warning: unused variable: `y`
Dec 05 22:09:51.818 INFO [stderr]   --> src/main.rs:93:9
Dec 05 22:09:51.818 INFO [stderr]    |
Dec 05 22:09:51.818 INFO [stderr] 93 |     let y = if x == 5 { 10 } else { 15 };
Dec 05 22:09:51.818 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 05 22:09:51.818 INFO [stderr] 
Dec 05 22:09:51.818 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:09:51.818 INFO [stderr]   --> src/main.rs:12:9
Dec 05 22:09:51.818 INFO [stderr]    |
Dec 05 22:09:51.818 INFO [stderr] 12 |     let mut d = 5;
Dec 05 22:09:51.818 INFO [stderr]    |         ----^
Dec 05 22:09:51.818 INFO [stderr]    |         |
Dec 05 22:09:51.818 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:09:51.818 INFO [stderr]    |
Dec 05 22:09:51.818 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 22:09:51.818 INFO [stderr] 
Dec 05 22:09:51.818 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:09:51.818 INFO [stderr]   --> src/main.rs:53:9
Dec 05 22:09:51.818 INFO [stderr]    |
Dec 05 22:09:51.818 INFO [stderr] 53 |     let mut m = [1, 2, 3];
Dec 05 22:09:51.818 INFO [stderr]    |         ----^
Dec 05 22:09:51.818 INFO [stderr]    |         |
Dec 05 22:09:51.818 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:09:51.818 INFO [stderr] 
Dec 05 22:09:51.822 INFO [stderr] warning: function is never used: `declartion`
Dec 05 22:09:51.822 INFO [stderr]  --> src/main.rs:3:1
Dec 05 22:09:51.822 INFO [stderr]   |
Dec 05 22:09:51.822 INFO [stderr] 3 | fn declartion () {
Dec 05 22:09:51.822 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 05 22:09:51.822 INFO [stderr]   |
Dec 05 22:09:51.822 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 22:09:51.822 INFO [stderr] 
Dec 05 22:09:51.822 INFO [stderr] warning: function is never used: `print_number`
Dec 05 22:09:51.822 INFO [stderr]   --> src/main.rs:26:1
Dec 05 22:09:51.822 INFO [stderr]    |
Dec 05 22:09:51.822 INFO [stderr] 26 | fn print_number(x: i32) {
Dec 05 22:09:51.822 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 22:09:51.822 INFO [stderr] 
Dec 05 22:09:51.822 INFO [stderr] warning: function is never used: `add_one`
Dec 05 22:09:51.822 INFO [stderr]   --> src/main.rs:31:1
Dec 05 22:09:51.822 INFO [stderr]    |
Dec 05 22:09:51.822 INFO [stderr] 31 | fn add_one(x: i32) -> i32 {
Dec 05 22:09:51.822 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 22:09:51.822 INFO [stderr] 
Dec 05 22:09:51.822 INFO [stderr] warning: function is never used: `primitive`
Dec 05 22:09:51.822 INFO [stderr]   --> src/main.rs:36:1
Dec 05 22:09:51.822 INFO [stderr]    |
Dec 05 22:09:51.822 INFO [stderr] 36 | fn primitive() {
Dec 05 22:09:51.822 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 05 22:09:51.822 INFO [stderr] 
Dec 05 22:09:51.822 INFO [stderr] warning: function is never used: `if_demo`
Dec 05 22:09:51.822 INFO [stderr]   --> src/main.rs:80:1
Dec 05 22:09:51.822 INFO [stderr]    |
Dec 05 22:09:51.822 INFO [stderr] 80 | fn if_demo() {
Dec 05 22:09:51.822 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 22:09:51.822 INFO [stderr] 
Dec 05 22:09:51.822 INFO [stderr] warning: function is never used: `loop_demo`
Dec 05 22:09:51.822 INFO [stderr]   --> src/main.rs:97:1
Dec 05 22:09:51.822 INFO [stderr]    |
Dec 05 22:09:51.822 INFO [stderr] 97 | fn loop_demo () {
Dec 05 22:09:51.822 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 05 22:09:51.822 INFO [stderr] 
Dec 05 22:09:52.012 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Dec 05 22:09:52.016 INFO [stderr] su: No module specific data is present
Dec 05 22:09:52.298 INFO running `"docker" "inspect" "acb304be877fa9117df7a1b9fd09623034feff408ba3393e8d7fa9a6e05b50c2"`
Dec 05 22:09:52.355 INFO running `"docker" "rm" "-f" "acb304be877fa9117df7a1b9fd09623034feff408ba3393e8d7fa9a6e05b50c2"`
Dec 05 22:09:52.429 INFO [stdout] acb304be877fa9117df7a1b9fd09623034feff408ba3393e8d7fa9a6e05b50c2
Dec 05 22:09:52.430 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen" "-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"`
Dec 05 22:09:52.621 INFO [stdout] b2384c00ccec97b2e07458648200c7bba817d34893220e2f7ba9469d3f8f3bd0
Dec 05 22:09:52.624 INFO running `"docker" "start" "-a" "b2384c00ccec97b2e07458648200c7bba817d34893220e2f7ba9469d3f8f3bd0"`
Dec 05 22:09:53.030 INFO [stderr] usermod: no changes
Dec 05 22:09:53.057 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 05 22:09:53.058 INFO [stderr]      Running /target/debug/deps/hello_world-5f063597a3930698
Dec 05 22:09:53.062 INFO [stderr] su: No module specific data is present
Dec 05 22:09:53.062 INFO [stdout] 
Dec 05 22:09:53.062 INFO [stdout] running 0 tests
Dec 05 22:09:53.062 INFO [stdout] 
Dec 05 22:09:53.062 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 22:09:53.062 INFO [stdout] 
Dec 05 22:09:53.413 INFO running `"docker" "inspect" "b2384c00ccec97b2e07458648200c7bba817d34893220e2f7ba9469d3f8f3bd0"`
Dec 05 22:09:53.670 INFO running `"docker" "rm" "-f" "b2384c00ccec97b2e07458648200c7bba817d34893220e2f7ba9469d3f8f3bd0"`
Dec 05 22:09:53.934 INFO [stdout] b2384c00ccec97b2e07458648200c7bba817d34893220e2f7ba9469d3f8f3bd0