Nov 17 01:42:50.259 INFO testing guni973/learn_rust against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 01:42:50.260 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 01:42:50.635 INFO [stdout] 3b606c9bbc1dc42f87798eedf570630d70de5da367f92417260e64116bd063e5
Nov 17 01:42:50.635 INFO running `"docker" "start" "-a" "3b606c9bbc1dc42f87798eedf570630d70de5da367f92417260e64116bd063e5"`
Nov 17 01:42:51.521 INFO [stderr] usermod: no changes
Nov 17 01:42:51.559 INFO [stderr]    Compiling hello_world v0.1.0 (/source)
Nov 17 01:42:51.958 INFO [stderr] warning: unreachable statement
Nov 17 01:42:51.958 INFO [stderr]    --> src/main.rs:102:5
Nov 17 01:42:51.958 INFO [stderr]     |
Nov 17 01:42:51.958 INFO [stderr] 102 |     let mut x = 5;
Nov 17 01:42:51.958 INFO [stderr]     |     ^^^^^^^^^^^^^^
Nov 17 01:42:51.958 INFO [stderr]     |
Nov 17 01:42:51.958 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Nov 17 01:42:51.958 INFO [stderr] 
Nov 17 01:42:51.983 INFO [stderr] warning: unused variable: `a`
Nov 17 01:42:51.983 INFO [stderr]  --> src/main.rs:6:9
Nov 17 01:42:51.983 INFO [stderr]   |
Nov 17 01:42:51.983 INFO [stderr] 6 |     let a = 5;
Nov 17 01:42:51.983 INFO [stderr]   |         ^ help: consider using `_a` instead
Nov 17 01:42:51.983 INFO [stderr]   |
Nov 17 01:42:51.983 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `b`
Nov 17 01:42:51.984 INFO [stderr]  --> src/main.rs:8:9
Nov 17 01:42:51.984 INFO [stderr]   |
Nov 17 01:42:51.984 INFO [stderr] 8 |     let b: i32 = 5;
Nov 17 01:42:51.984 INFO [stderr]   |         ^ help: consider using `_b` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `c`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:10:9
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 10 |     let c: u32 = 5;
Nov 17 01:42:51.984 INFO [stderr]    |         ^ help: consider using `_c` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `d`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:12:13
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 12 |     let mut d = 5;
Nov 17 01:42:51.984 INFO [stderr]    |             ^ help: consider using `_d` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:19:10
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 19 |     let (x, y) = (1, 2);
Nov 17 01:42:51.984 INFO [stderr]    |          ^ help: consider using `_x` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:19:13
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 19 |     let (x, y) = (1, 2);
Nov 17 01:42:51.984 INFO [stderr]    |             ^ help: consider using `_y` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:38:9
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 38 |     let x = true;
Nov 17 01:42:51.984 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:39:9
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 39 |     let y: bool = false;
Nov 17 01:42:51.984 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:44:9
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 44 |     let x = 'x';
Nov 17 01:42:51.984 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `two_hearts`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:45:9
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 45 |     let two_hearts = '¶';
Nov 17 01:42:51.984 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_two_hearts` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:48:9
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 48 |     let x = 42; // xはi32型を持つ
Nov 17 01:42:51.984 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:49:9
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 49 |     let y = 1.0; // yはf64型を持つ
Nov 17 01:42:51.984 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `a`
Nov 17 01:42:51.984 INFO [stderr]   --> src/main.rs:52:9
Nov 17 01:42:51.984 INFO [stderr]    |
Nov 17 01:42:51.984 INFO [stderr] 52 |     let a = [0, 1, 2, 3, 4];
Nov 17 01:42:51.984 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 17 01:42:51.984 INFO [stderr] 
Nov 17 01:42:51.984 INFO [stderr] warning: unused variable: `m`
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:53:13
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 53 |     let mut m = [1, 2, 3];
Nov 17 01:42:51.985 INFO [stderr]    |             ^ help: consider using `_m` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: unused variable: `complete`
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:60:9
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 60 |     let complete = &a[..];
Nov 17 01:42:51.985 INFO [stderr]    |         ^^^^^^^^ help: consider using `_complete` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: unused variable: `middle`
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:62:9
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 62 |     let middle = &a[1..4];
Nov 17 01:42:51.985 INFO [stderr]    |         ^^^^^^ help: consider using `_middle` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:67:9
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 67 |     let x = (1, "hello");
Nov 17 01:42:51.985 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:68:9
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 68 |     let x: (i32, &str) = (1, "hello");
Nov 17 01:42:51.985 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: variable `x` is assigned to, but never used
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:70:13
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 70 |     let mut x = (1, 2);
Nov 17 01:42:51.985 INFO [stderr]    |             ^
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr]    = note: consider using `_x` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: value assigned to `x` is never read
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:72:5
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 72 |     x = y;
Nov 17 01:42:51.985 INFO [stderr]    |     ^
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:74:10
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Nov 17 01:42:51.985 INFO [stderr]    |          ^ help: consider using `_x` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:74:13
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Nov 17 01:42:51.985 INFO [stderr]    |             ^ help: consider using `_y` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: unused variable: `z`
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:74:16
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Nov 17 01:42:51.985 INFO [stderr]    |                ^ help: consider using `_z` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:93:9
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 93 |     let y = if x == 5 { 10 } else { 15 };
Nov 17 01:42:51.985 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.985 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:42:51.985 INFO [stderr]   --> src/main.rs:12:9
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr] 12 |     let mut d = 5;
Nov 17 01:42:51.985 INFO [stderr]    |         ----^
Nov 17 01:42:51.985 INFO [stderr]    |         |
Nov 17 01:42:51.985 INFO [stderr]    |         help: remove this `mut`
Nov 17 01:42:51.985 INFO [stderr]    |
Nov 17 01:42:51.985 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 01:42:51.985 INFO [stderr] 
Nov 17 01:42:51.987 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:42:51.987 INFO [stderr]   --> src/main.rs:53:9
Nov 17 01:42:51.987 INFO [stderr]    |
Nov 17 01:42:51.987 INFO [stderr] 53 |     let mut m = [1, 2, 3];
Nov 17 01:42:51.987 INFO [stderr]    |         ----^
Nov 17 01:42:51.987 INFO [stderr]    |         |
Nov 17 01:42:51.987 INFO [stderr]    |         help: remove this `mut`
Nov 17 01:42:51.987 INFO [stderr] 
Nov 17 01:42:51.991 INFO [stderr] warning: function is never used: `declartion`
Nov 17 01:42:51.991 INFO [stderr]  --> src/main.rs:3:1
Nov 17 01:42:51.991 INFO [stderr]   |
Nov 17 01:42:51.991 INFO [stderr] 3 | fn declartion () {
Nov 17 01:42:51.991 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Nov 17 01:42:51.991 INFO [stderr]   |
Nov 17 01:42:51.991 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 01:42:51.991 INFO [stderr] 
Nov 17 01:42:51.991 INFO [stderr] warning: function is never used: `print_number`
Nov 17 01:42:51.991 INFO [stderr]   --> src/main.rs:26:1
Nov 17 01:42:51.991 INFO [stderr]    |
Nov 17 01:42:51.991 INFO [stderr] 26 | fn print_number(x: i32) {
Nov 17 01:42:51.991 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:42:51.991 INFO [stderr] 
Nov 17 01:42:51.991 INFO [stderr] warning: function is never used: `add_one`
Nov 17 01:42:51.991 INFO [stderr]   --> src/main.rs:31:1
Nov 17 01:42:51.991 INFO [stderr]    |
Nov 17 01:42:51.991 INFO [stderr] 31 | fn add_one(x: i32) -> i32 {
Nov 17 01:42:51.991 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:42:51.991 INFO [stderr] 
Nov 17 01:42:51.991 INFO [stderr] warning: function is never used: `primitive`
Nov 17 01:42:51.991 INFO [stderr]   --> src/main.rs:36:1
Nov 17 01:42:51.991 INFO [stderr]    |
Nov 17 01:42:51.991 INFO [stderr] 36 | fn primitive() {
Nov 17 01:42:51.991 INFO [stderr]    | ^^^^^^^^^^^^^^
Nov 17 01:42:51.991 INFO [stderr] 
Nov 17 01:42:51.991 INFO [stderr] warning: function is never used: `if_demo`
Nov 17 01:42:51.991 INFO [stderr]   --> src/main.rs:80:1
Nov 17 01:42:51.991 INFO [stderr]    |
Nov 17 01:42:51.991 INFO [stderr] 80 | fn if_demo() {
Nov 17 01:42:51.991 INFO [stderr]    | ^^^^^^^^^^^^
Nov 17 01:42:51.991 INFO [stderr] 
Nov 17 01:42:51.991 INFO [stderr] warning: function is never used: `loop_demo`
Nov 17 01:42:51.991 INFO [stderr]   --> src/main.rs:97:1
Nov 17 01:42:51.991 INFO [stderr]    |
Nov 17 01:42:51.991 INFO [stderr] 97 | fn loop_demo () {
Nov 17 01:42:51.991 INFO [stderr]    | ^^^^^^^^^^^^^^^
Nov 17 01:42:51.991 INFO [stderr] 
Nov 17 01:42:52.206 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Nov 17 01:42:52.209 INFO [stderr] su: No module specific data is present
Nov 17 01:42:52.865 INFO running `"docker" "inspect" "3b606c9bbc1dc42f87798eedf570630d70de5da367f92417260e64116bd063e5"`
Nov 17 01:42:53.047 INFO running `"docker" "rm" "-f" "3b606c9bbc1dc42f87798eedf570630d70de5da367f92417260e64116bd063e5"`
Nov 17 01:42:53.347 INFO [stdout] 3b606c9bbc1dc42f87798eedf570630d70de5da367f92417260e64116bd063e5
Nov 17 01:42:53.356 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 01:42:53.703 INFO [stdout] 802b78d794c1e905505c398dd8c03522f74b034d3ed0eecbbeb953e0a2e6dcae
Nov 17 01:42:53.705 INFO running `"docker" "start" "-a" "802b78d794c1e905505c398dd8c03522f74b034d3ed0eecbbeb953e0a2e6dcae"`
Nov 17 01:42:55.175 INFO [stderr] usermod: no changes
Nov 17 01:42:55.234 INFO [stderr]    Compiling hello_world v0.1.0 (/source)
Nov 17 01:42:55.791 INFO [stderr] warning: unreachable statement
Nov 17 01:42:55.791 INFO [stderr]    --> src/main.rs:102:5
Nov 17 01:42:55.791 INFO [stderr]     |
Nov 17 01:42:55.791 INFO [stderr] 102 |     let mut x = 5;
Nov 17 01:42:55.791 INFO [stderr]     |     ^^^^^^^^^^^^^^
Nov 17 01:42:55.791 INFO [stderr]     |
Nov 17 01:42:55.791 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Nov 17 01:42:55.791 INFO [stderr] 
Nov 17 01:42:55.810 INFO [stderr] warning: unused variable: `a`
Nov 17 01:42:55.810 INFO [stderr]  --> src/main.rs:6:9
Nov 17 01:42:55.811 INFO [stderr]   |
Nov 17 01:42:55.811 INFO [stderr] 6 |     let a = 5;
Nov 17 01:42:55.811 INFO [stderr]   |         ^ help: consider using `_a` instead
Nov 17 01:42:55.811 INFO [stderr]   |
Nov 17 01:42:55.811 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `b`
Nov 17 01:42:55.811 INFO [stderr]  --> src/main.rs:8:9
Nov 17 01:42:55.811 INFO [stderr]   |
Nov 17 01:42:55.811 INFO [stderr] 8 |     let b: i32 = 5;
Nov 17 01:42:55.811 INFO [stderr]   |         ^ help: consider using `_b` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `c`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:10:9
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 10 |     let c: u32 = 5;
Nov 17 01:42:55.811 INFO [stderr]    |         ^ help: consider using `_c` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `d`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:12:13
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 12 |     let mut d = 5;
Nov 17 01:42:55.811 INFO [stderr]    |             ^ help: consider using `_d` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:19:10
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 19 |     let (x, y) = (1, 2);
Nov 17 01:42:55.811 INFO [stderr]    |          ^ help: consider using `_x` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:19:13
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 19 |     let (x, y) = (1, 2);
Nov 17 01:42:55.811 INFO [stderr]    |             ^ help: consider using `_y` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:38:9
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 38 |     let x = true;
Nov 17 01:42:55.811 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:39:9
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 39 |     let y: bool = false;
Nov 17 01:42:55.811 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:44:9
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 44 |     let x = 'x';
Nov 17 01:42:55.811 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `two_hearts`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:45:9
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 45 |     let two_hearts = '¶';
Nov 17 01:42:55.811 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_two_hearts` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:48:9
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 48 |     let x = 42; // xはi32型を持つ
Nov 17 01:42:55.811 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:49:9
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 49 |     let y = 1.0; // yはf64型を持つ
Nov 17 01:42:55.811 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `a`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:52:9
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.811 INFO [stderr] 52 |     let a = [0, 1, 2, 3, 4];
Nov 17 01:42:55.811 INFO [stderr]    |         ^ help: consider using `_a` instead
Nov 17 01:42:55.811 INFO [stderr] 
Nov 17 01:42:55.811 INFO [stderr] warning: unused variable: `m`
Nov 17 01:42:55.811 INFO [stderr]   --> src/main.rs:53:13
Nov 17 01:42:55.811 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 53 |     let mut m = [1, 2, 3];
Nov 17 01:42:55.812 INFO [stderr]    |             ^ help: consider using `_m` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: unused variable: `complete`
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:60:9
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 60 |     let complete = &a[..];
Nov 17 01:42:55.812 INFO [stderr]    |         ^^^^^^^^ help: consider using `_complete` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: unused variable: `middle`
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:62:9
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 62 |     let middle = &a[1..4];
Nov 17 01:42:55.812 INFO [stderr]    |         ^^^^^^ help: consider using `_middle` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:67:9
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 67 |     let x = (1, "hello");
Nov 17 01:42:55.812 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:68:9
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 68 |     let x: (i32, &str) = (1, "hello");
Nov 17 01:42:55.812 INFO [stderr]    |         ^ help: consider using `_x` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: variable `x` is assigned to, but never used
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:70:13
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 70 |     let mut x = (1, 2);
Nov 17 01:42:55.812 INFO [stderr]    |             ^
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr]    = note: consider using `_x` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: value assigned to `x` is never read
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:72:5
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 72 |     x = y;
Nov 17 01:42:55.812 INFO [stderr]    |     ^
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: unused variable: `x`
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:74:10
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Nov 17 01:42:55.812 INFO [stderr]    |          ^ help: consider using `_x` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:74:13
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Nov 17 01:42:55.812 INFO [stderr]    |             ^ help: consider using `_y` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: unused variable: `z`
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:74:16
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 74 |     let (x, y, z) = (1, 2, 3);
Nov 17 01:42:55.812 INFO [stderr]    |                ^ help: consider using `_z` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: unused variable: `y`
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:93:9
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 93 |     let y = if x == 5 { 10 } else { 15 };
Nov 17 01:42:55.812 INFO [stderr]    |         ^ help: consider using `_y` instead
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.812 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:42:55.812 INFO [stderr]   --> src/main.rs:12:9
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr] 12 |     let mut d = 5;
Nov 17 01:42:55.812 INFO [stderr]    |         ----^
Nov 17 01:42:55.812 INFO [stderr]    |         |
Nov 17 01:42:55.812 INFO [stderr]    |         help: remove this `mut`
Nov 17 01:42:55.812 INFO [stderr]    |
Nov 17 01:42:55.812 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 01:42:55.812 INFO [stderr] 
Nov 17 01:42:55.831 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:42:55.831 INFO [stderr]   --> src/main.rs:53:9
Nov 17 01:42:55.831 INFO [stderr]    |
Nov 17 01:42:55.831 INFO [stderr] 53 |     let mut m = [1, 2, 3];
Nov 17 01:42:55.831 INFO [stderr]    |         ----^
Nov 17 01:42:55.831 INFO [stderr]    |         |
Nov 17 01:42:55.831 INFO [stderr]    |         help: remove this `mut`
Nov 17 01:42:55.831 INFO [stderr] 
Nov 17 01:42:55.831 INFO [stderr] warning: function is never used: `declartion`
Nov 17 01:42:55.831 INFO [stderr]  --> src/main.rs:3:1
Nov 17 01:42:55.831 INFO [stderr]   |
Nov 17 01:42:55.831 INFO [stderr] 3 | fn declartion () {
Nov 17 01:42:55.831 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Nov 17 01:42:55.831 INFO [stderr]   |
Nov 17 01:42:55.831 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 01:42:55.831 INFO [stderr] 
Nov 17 01:42:55.831 INFO [stderr] warning: function is never used: `print_number`
Nov 17 01:42:55.831 INFO [stderr]   --> src/main.rs:26:1
Nov 17 01:42:55.831 INFO [stderr]    |
Nov 17 01:42:55.831 INFO [stderr] 26 | fn print_number(x: i32) {
Nov 17 01:42:55.831 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:42:55.831 INFO [stderr] 
Nov 17 01:42:55.831 INFO [stderr] warning: function is never used: `add_one`
Nov 17 01:42:55.831 INFO [stderr]   --> src/main.rs:31:1
Nov 17 01:42:55.831 INFO [stderr]    |
Nov 17 01:42:55.831 INFO [stderr] 31 | fn add_one(x: i32) -> i32 {
Nov 17 01:42:55.831 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:42:55.831 INFO [stderr] 
Nov 17 01:42:55.831 INFO [stderr] warning: function is never used: `primitive`
Nov 17 01:42:55.831 INFO [stderr]   --> src/main.rs:36:1
Nov 17 01:42:55.831 INFO [stderr]    |
Nov 17 01:42:55.831 INFO [stderr] 36 | fn primitive() {
Nov 17 01:42:55.831 INFO [stderr]    | ^^^^^^^^^^^^^^
Nov 17 01:42:55.831 INFO [stderr] 
Nov 17 01:42:55.831 INFO [stderr] warning: function is never used: `if_demo`
Nov 17 01:42:55.831 INFO [stderr]   --> src/main.rs:80:1
Nov 17 01:42:55.831 INFO [stderr]    |
Nov 17 01:42:55.831 INFO [stderr] 80 | fn if_demo() {
Nov 17 01:42:55.831 INFO [stderr]    | ^^^^^^^^^^^^
Nov 17 01:42:55.831 INFO [stderr] 
Nov 17 01:42:55.831 INFO [stderr] warning: function is never used: `loop_demo`
Nov 17 01:42:55.831 INFO [stderr]   --> src/main.rs:97:1
Nov 17 01:42:55.831 INFO [stderr]    |
Nov 17 01:42:55.831 INFO [stderr] 97 | fn loop_demo () {
Nov 17 01:42:55.831 INFO [stderr]    | ^^^^^^^^^^^^^^^
Nov 17 01:42:55.831 INFO [stderr] 
Nov 17 01:42:56.215 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Nov 17 01:42:56.218 INFO [stderr] su: No module specific data is present
Nov 17 01:42:57.701 INFO running `"docker" "inspect" "802b78d794c1e905505c398dd8c03522f74b034d3ed0eecbbeb953e0a2e6dcae"`
Nov 17 01:42:58.049 INFO running `"docker" "rm" "-f" "802b78d794c1e905505c398dd8c03522f74b034d3ed0eecbbeb953e0a2e6dcae"`
Nov 17 01:42:58.336 INFO [stdout] 802b78d794c1e905505c398dd8c03522f74b034d3ed0eecbbeb953e0a2e6dcae
Nov 17 01:42:58.347 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 01:42:58.907 INFO [stdout] d9d2cde0893d7ce385c9e0e5c49848e24b7cf532402311da6c7543b5b80f425d
Nov 17 01:42:58.915 INFO running `"docker" "start" "-a" "d9d2cde0893d7ce385c9e0e5c49848e24b7cf532402311da6c7543b5b80f425d"`
Nov 17 01:43:00.261 INFO [stderr] usermod: no changes
Nov 17 01:43:00.351 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Nov 17 01:43:00.351 INFO [stderr]      Running /target/debug/deps/hello_world-0412a59629646785
Nov 17 01:43:00.363 INFO [stderr] su: No module specific data is present
Nov 17 01:43:00.363 INFO [stdout] 
Nov 17 01:43:00.363 INFO [stdout] running 0 tests
Nov 17 01:43:00.363 INFO [stdout] 
Nov 17 01:43:00.363 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 01:43:00.363 INFO [stdout] 
Nov 17 01:43:01.631 INFO running `"docker" "inspect" "d9d2cde0893d7ce385c9e0e5c49848e24b7cf532402311da6c7543b5b80f425d"`
Nov 17 01:43:01.919 INFO running `"docker" "rm" "-f" "d9d2cde0893d7ce385c9e0e5c49848e24b7cf532402311da6c7543b5b80f425d"`
Nov 17 01:43:02.310 INFO [stdout] d9d2cde0893d7ce385c9e0e5c49848e24b7cf532402311da6c7543b5b80f425d