Nov 28 04:34:32.369 INFO checking halcyon/rust_tut against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 04:34:32.369 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 04:34:32.747 INFO [stdout] 16f5cc19119769f8435f1023ed58e67f4c4ddbe0573a01249a6905566606d31b
Nov 28 04:34:32.754 INFO running `"docker" "start" "-a" "16f5cc19119769f8435f1023ed58e67f4c4ddbe0573a01249a6905566606d31b"`
Nov 28 04:34:33.738 INFO [stderr] usermod: no changes
Nov 28 04:34:33.776 INFO [stderr]     Checking rust_tut v0.1.0 (/source)
Nov 28 04:34:34.043 INFO [stderr] warning: unused imports: `u16`, `u32`, `u64`, `u8`
Nov 28 04:34:34.043 INFO [stderr]  --> src/main.rs:1:30
Nov 28 04:34:34.043 INFO [stderr]   |
Nov 28 04:34:34.043 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
Nov 28 04:34:34.043 INFO [stderr]   |                              ^^  ^^^  ^^^  ^^^
Nov 28 04:34:34.043 INFO [stderr]   |
Nov 28 04:34:34.043 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 04:34:34.043 INFO [stderr] 
Nov 28 04:34:34.043 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 04:34:34.043 INFO [stderr]   --> src/main.rs:62:8
Nov 28 04:34:34.043 INFO [stderr]    |
Nov 28 04:34:34.043 INFO [stderr] 62 |     if (age_old == 5) {
Nov 28 04:34:34.043 INFO [stderr]    |        ^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 04:34:34.043 INFO [stderr]    |
Nov 28 04:34:34.043 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 28 04:34:34.043 INFO [stderr] 
Nov 28 04:34:34.043 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 04:34:34.043 INFO [stderr]   --> src/main.rs:78:23
Nov 28 04:34:34.043 INFO [stderr]    |
Nov 28 04:34:34.043 INFO [stderr] 78 |     let can_vote = if (age_old >= 18) { true } else { false };
Nov 28 04:34:34.043 INFO [stderr]    |                       ^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 04:34:34.043 INFO [stderr] 
Nov 28 04:34:34.043 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 04:34:34.043 INFO [stderr]   --> src/main.rs:85:12
Nov 28 04:34:34.043 INFO [stderr]    |
Nov 28 04:34:34.043 INFO [stderr] 85 |         if ((x % 2) == 0) {
Nov 28 04:34:34.043 INFO [stderr]    |            ^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 04:34:34.043 INFO [stderr] 
Nov 28 04:34:34.043 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 04:34:34.043 INFO [stderr]   --> src/main.rs:90:12
Nov 28 04:34:34.043 INFO [stderr]    |
Nov 28 04:34:34.043 INFO [stderr] 90 |         if (x > 10) {
Nov 28 04:34:34.043 INFO [stderr]    |            ^^^^^^^^ help: remove these parentheses
Nov 28 04:34:34.043 INFO [stderr] 
Nov 28 04:34:34.180 INFO [stderr] warning: unused imports: `u16`, `u32`, `u64`, `u8`
Nov 28 04:34:34.180 INFO [stderr]  --> src/main.rs:1:30
Nov 28 04:34:34.180 INFO [stderr]   |
Nov 28 04:34:34.181 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
Nov 28 04:34:34.181 INFO [stderr]   |                              ^^  ^^^  ^^^  ^^^
Nov 28 04:34:34.181 INFO [stderr]   |
Nov 28 04:34:34.181 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 04:34:34.182 INFO [stderr] 
Nov 28 04:34:34.182 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 04:34:34.182 INFO [stderr]   --> src/main.rs:62:8
Nov 28 04:34:34.183 INFO [stderr]    |
Nov 28 04:34:34.183 INFO [stderr] 62 |     if (age_old == 5) {
Nov 28 04:34:34.183 INFO [stderr]    |        ^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 04:34:34.183 INFO [stderr]    |
Nov 28 04:34:34.184 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 28 04:34:34.184 INFO [stderr] 
Nov 28 04:34:34.184 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 04:34:34.184 INFO [stderr]   --> src/main.rs:78:23
Nov 28 04:34:34.185 INFO [stderr]    |
Nov 28 04:34:34.185 INFO [stderr] 78 |     let can_vote = if (age_old >= 18) { true } else { false };
Nov 28 04:34:34.185 INFO [stderr]    |                       ^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 04:34:34.186 INFO [stderr] 
Nov 28 04:34:34.186 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 04:34:34.186 INFO [stderr]   --> src/main.rs:85:12
Nov 28 04:34:34.186 INFO [stderr]    |
Nov 28 04:34:34.187 INFO [stderr] 85 |         if ((x % 2) == 0) {
Nov 28 04:34:34.187 INFO [stderr]    |            ^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 04:34:34.187 INFO [stderr] 
Nov 28 04:34:34.187 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 04:34:34.188 INFO [stderr]   --> src/main.rs:90:12
Nov 28 04:34:34.188 INFO [stderr]    |
Nov 28 04:34:34.188 INFO [stderr] 90 |         if (x > 10) {
Nov 28 04:34:34.189 INFO [stderr]    |            ^^^^^^^^ help: remove these parentheses
Nov 28 04:34:34.189 INFO [stderr] 
Nov 28 04:34:34.200 INFO [stderr] warning: unused variable: `num`
Nov 28 04:34:34.200 INFO [stderr]  --> src/main.rs:8:9
Nov 28 04:34:34.200 INFO [stderr]   |
Nov 28 04:34:34.200 INFO [stderr] 8 |     let num = 10;
Nov 28 04:34:34.200 INFO [stderr]   |         ^^^ help: consider using `_num` instead
Nov 28 04:34:34.200 INFO [stderr]   |
Nov 28 04:34:34.200 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 04:34:34.200 INFO [stderr] 
Nov 28 04:34:34.200 INFO [stderr] warning: unused variable: `f_name`
Nov 28 04:34:34.200 INFO [stderr]   --> src/main.rs:34:10
Nov 28 04:34:34.200 INFO [stderr]    |
Nov 28 04:34:34.200 INFO [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
Nov 28 04:34:34.200 INFO [stderr]    |          ^^^^^^ help: consider using `_f_name` instead
Nov 28 04:34:34.200 INFO [stderr] 
Nov 28 04:34:34.200 INFO [stderr] warning: unused variable: `l_name`
Nov 28 04:34:34.200 INFO [stderr]   --> src/main.rs:34:18
Nov 28 04:34:34.200 INFO [stderr]    |
Nov 28 04:34:34.200 INFO [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
Nov 28 04:34:34.200 INFO [stderr]    |                  ^^^^^^ help: consider using `_l_name` instead
Nov 28 04:34:34.200 INFO [stderr] 
Nov 28 04:34:34.200 INFO [stderr] warning: unused variable: `count`
Nov 28 04:34:34.200 INFO [stderr]    --> src/main.rs:116:9
Nov 28 04:34:34.200 INFO [stderr]     |
Nov 28 04:34:34.200 INFO [stderr] 116 |     let count = rand_string.chars().count();
Nov 28 04:34:34.200 INFO [stderr]     |         ^^^^^ help: consider using `_count` instead
Nov 28 04:34:34.200 INFO [stderr] 
Nov 28 04:34:34.236 INFO [stderr] warning: variable does not need to be mutable
Nov 28 04:34:34.236 INFO [stderr]   --> src/main.rs:10:9
Nov 28 04:34:34.236 INFO [stderr]    |
Nov 28 04:34:34.236 INFO [stderr] 10 |     let mut age: i32 = 40;
Nov 28 04:34:34.236 INFO [stderr]    |         ----^^^
Nov 28 04:34:34.236 INFO [stderr]    |         |
Nov 28 04:34:34.236 INFO [stderr]    |         help: remove this `mut`
Nov 28 04:34:34.236 INFO [stderr]    |
Nov 28 04:34:34.236 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 04:34:34.236 INFO [stderr] 
Nov 28 04:34:34.236 INFO [stderr] warning: variable does not need to be mutable
Nov 28 04:34:34.236 INFO [stderr]   --> src/main.rs:52:9
Nov 28 04:34:34.236 INFO [stderr]    |
Nov 28 04:34:34.236 INFO [stderr] 52 |     let mut neg_4 = -4i32;
Nov 28 04:34:34.236 INFO [stderr]    |         ----^^^^^
Nov 28 04:34:34.236 INFO [stderr]    |         |
Nov 28 04:34:34.236 INFO [stderr]    |         help: remove this `mut`
Nov 28 04:34:34.236 INFO [stderr] 
Nov 28 04:34:34.352 INFO [stderr] warning: unused variable: `num`
Nov 28 04:34:34.352 INFO [stderr]  --> src/main.rs:8:9
Nov 28 04:34:34.352 INFO [stderr]   |
Nov 28 04:34:34.352 INFO [stderr] 8 |     let num = 10;
Nov 28 04:34:34.352 INFO [stderr]   |         ^^^ help: consider using `_num` instead
Nov 28 04:34:34.352 INFO [stderr]   |
Nov 28 04:34:34.352 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 04:34:34.352 INFO [stderr] 
Nov 28 04:34:34.352 INFO [stderr] warning: unused variable: `f_name`
Nov 28 04:34:34.352 INFO [stderr]   --> src/main.rs:34:10
Nov 28 04:34:34.352 INFO [stderr]    |
Nov 28 04:34:34.352 INFO [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
Nov 28 04:34:34.352 INFO [stderr]    |          ^^^^^^ help: consider using `_f_name` instead
Nov 28 04:34:34.352 INFO [stderr] 
Nov 28 04:34:34.352 INFO [stderr] warning: unused variable: `l_name`
Nov 28 04:34:34.352 INFO [stderr]   --> src/main.rs:34:18
Nov 28 04:34:34.352 INFO [stderr]    |
Nov 28 04:34:34.352 INFO [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
Nov 28 04:34:34.352 INFO [stderr]    |                  ^^^^^^ help: consider using `_l_name` instead
Nov 28 04:34:34.352 INFO [stderr] 
Nov 28 04:34:34.352 INFO [stderr] warning: unused variable: `count`
Nov 28 04:34:34.352 INFO [stderr]    --> src/main.rs:116:9
Nov 28 04:34:34.352 INFO [stderr]     |
Nov 28 04:34:34.352 INFO [stderr] 116 |     let count = rand_string.chars().count();
Nov 28 04:34:34.352 INFO [stderr]     |         ^^^^^ help: consider using `_count` instead
Nov 28 04:34:34.352 INFO [stderr] 
Nov 28 04:34:34.415 INFO [stderr] warning: variable does not need to be mutable
Nov 28 04:34:34.416 INFO [stderr]   --> src/main.rs:10:9
Nov 28 04:34:34.416 INFO [stderr]    |
Nov 28 04:34:34.416 INFO [stderr] 10 |     let mut age: i32 = 40;
Nov 28 04:34:34.416 INFO [stderr]    |         ----^^^
Nov 28 04:34:34.417 INFO [stderr]    |         |
Nov 28 04:34:34.417 INFO [stderr]    |         help: remove this `mut`
Nov 28 04:34:34.417 INFO [stderr]    |
Nov 28 04:34:34.417 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 04:34:34.418 INFO [stderr] 
Nov 28 04:34:34.418 INFO [stderr] warning: variable does not need to be mutable
Nov 28 04:34:34.418 INFO [stderr]   --> src/main.rs:52:9
Nov 28 04:34:34.418 INFO [stderr]    |
Nov 28 04:34:34.418 INFO [stderr] 52 |     let mut neg_4 = -4i32;
Nov 28 04:34:34.418 INFO [stderr]    |         ----^^^^^
Nov 28 04:34:34.418 INFO [stderr]    |         |
Nov 28 04:34:34.418 INFO [stderr]    |         help: remove this `mut`
Nov 28 04:34:34.418 INFO [stderr] 
Nov 28 04:34:34.420 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Nov 28 04:34:34.424 INFO [stderr] su: No module specific data is present
Nov 28 04:34:34.861 INFO running `"docker" "inspect" "16f5cc19119769f8435f1023ed58e67f4c4ddbe0573a01249a6905566606d31b"`
Nov 28 04:34:35.005 INFO running `"docker" "rm" "-f" "16f5cc19119769f8435f1023ed58e67f4c4ddbe0573a01249a6905566606d31b"`
Nov 28 04:34:35.244 INFO [stdout] 16f5cc19119769f8435f1023ed58e67f4c4ddbe0573a01249a6905566606d31b