Dec 05 22:03:59.075 INFO testing halcyon/rust_tut against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 22:03:59.075 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 22:03:59.412 INFO [stdout] 446a921dcd24060f2c10492ab9c5993af73f03e2710c0e6dec244ae1786152e0
Dec 05 22:03:59.420 INFO running `"docker" "start" "-a" "446a921dcd24060f2c10492ab9c5993af73f03e2710c0e6dec244ae1786152e0"`
Dec 05 22:03:59.995 INFO [stderr] usermod: no changes
Dec 05 22:04:00.026 INFO [stderr]    Compiling rust_tut v0.1.0 (/source)
Dec 05 22:04:00.290 INFO [stderr] warning: unused imports: `u16`, `u32`, `u64`, `u8`
Dec 05 22:04:00.290 INFO [stderr]  --> src/main.rs:1:30
Dec 05 22:04:00.290 INFO [stderr]   |
Dec 05 22:04:00.290 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
Dec 05 22:04:00.290 INFO [stderr]   |                              ^^  ^^^  ^^^  ^^^
Dec 05 22:04:00.290 INFO [stderr]   |
Dec 05 22:04:00.290 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 22:04:00.290 INFO [stderr] 
Dec 05 22:04:00.290 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 05 22:04:00.290 INFO [stderr]   --> src/main.rs:62:8
Dec 05 22:04:00.290 INFO [stderr]    |
Dec 05 22:04:00.290 INFO [stderr] 62 |     if (age_old == 5) {
Dec 05 22:04:00.290 INFO [stderr]    |        ^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 22:04:00.290 INFO [stderr]    |
Dec 05 22:04:00.290 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 05 22:04:00.290 INFO [stderr] 
Dec 05 22:04:00.290 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 05 22:04:00.290 INFO [stderr]   --> src/main.rs:78:23
Dec 05 22:04:00.290 INFO [stderr]    |
Dec 05 22:04:00.290 INFO [stderr] 78 |     let can_vote = if (age_old >= 18) { true } else { false };
Dec 05 22:04:00.290 INFO [stderr]    |                       ^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 22:04:00.290 INFO [stderr] 
Dec 05 22:04:00.290 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 05 22:04:00.290 INFO [stderr]   --> src/main.rs:85:12
Dec 05 22:04:00.290 INFO [stderr]    |
Dec 05 22:04:00.290 INFO [stderr] 85 |         if ((x % 2) == 0) {
Dec 05 22:04:00.291 INFO [stderr]    |            ^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 22:04:00.291 INFO [stderr] 
Dec 05 22:04:00.291 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 05 22:04:00.291 INFO [stderr]   --> src/main.rs:90:12
Dec 05 22:04:00.291 INFO [stderr]    |
Dec 05 22:04:00.291 INFO [stderr] 90 |         if (x > 10) {
Dec 05 22:04:00.291 INFO [stderr]    |            ^^^^^^^^ help: remove these parentheses
Dec 05 22:04:00.291 INFO [stderr] 
Dec 05 22:04:00.452 INFO [stderr] warning: unused variable: `num`
Dec 05 22:04:00.452 INFO [stderr]  --> src/main.rs:8:9
Dec 05 22:04:00.452 INFO [stderr]   |
Dec 05 22:04:00.452 INFO [stderr] 8 |     let num = 10;
Dec 05 22:04:00.452 INFO [stderr]   |         ^^^ help: consider using `_num` instead
Dec 05 22:04:00.452 INFO [stderr]   |
Dec 05 22:04:00.452 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 22:04:00.452 INFO [stderr] 
Dec 05 22:04:00.452 INFO [stderr] warning: unused variable: `f_name`
Dec 05 22:04:00.452 INFO [stderr]   --> src/main.rs:34:10
Dec 05 22:04:00.452 INFO [stderr]    |
Dec 05 22:04:00.452 INFO [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
Dec 05 22:04:00.452 INFO [stderr]    |          ^^^^^^ help: consider using `_f_name` instead
Dec 05 22:04:00.452 INFO [stderr] 
Dec 05 22:04:00.452 INFO [stderr] warning: unused variable: `l_name`
Dec 05 22:04:00.452 INFO [stderr]   --> src/main.rs:34:18
Dec 05 22:04:00.453 INFO [stderr]    |
Dec 05 22:04:00.453 INFO [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
Dec 05 22:04:00.453 INFO [stderr]    |                  ^^^^^^ help: consider using `_l_name` instead
Dec 05 22:04:00.453 INFO [stderr] 
Dec 05 22:04:00.453 INFO [stderr] warning: unused variable: `count`
Dec 05 22:04:00.453 INFO [stderr]    --> src/main.rs:116:9
Dec 05 22:04:00.453 INFO [stderr]     |
Dec 05 22:04:00.453 INFO [stderr] 116 |     let count = rand_string.chars().count();
Dec 05 22:04:00.453 INFO [stderr]     |         ^^^^^ help: consider using `_count` instead
Dec 05 22:04:00.453 INFO [stderr] 
Dec 05 22:04:00.473 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:04:00.473 INFO [stderr]   --> src/main.rs:10:9
Dec 05 22:04:00.474 INFO [stderr]    |
Dec 05 22:04:00.474 INFO [stderr] 10 |     let mut age: i32 = 40;
Dec 05 22:04:00.474 INFO [stderr]    |         ----^^^
Dec 05 22:04:00.474 INFO [stderr]    |         |
Dec 05 22:04:00.474 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:04:00.474 INFO [stderr]    |
Dec 05 22:04:00.474 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 22:04:00.474 INFO [stderr] 
Dec 05 22:04:00.474 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:04:00.474 INFO [stderr]   --> src/main.rs:52:9
Dec 05 22:04:00.474 INFO [stderr]    |
Dec 05 22:04:00.474 INFO [stderr] 52 |     let mut neg_4 = -4i32;
Dec 05 22:04:00.474 INFO [stderr]    |         ----^^^^^
Dec 05 22:04:00.474 INFO [stderr]    |         |
Dec 05 22:04:00.474 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:04:00.474 INFO [stderr] 
Dec 05 22:04:00.939 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Dec 05 22:04:00.942 INFO [stderr] su: No module specific data is present
Dec 05 22:04:01.385 INFO running `"docker" "inspect" "446a921dcd24060f2c10492ab9c5993af73f03e2710c0e6dec244ae1786152e0"`
Dec 05 22:04:01.561 INFO running `"docker" "rm" "-f" "446a921dcd24060f2c10492ab9c5993af73f03e2710c0e6dec244ae1786152e0"`
Dec 05 22:04:01.700 INFO [stdout] 446a921dcd24060f2c10492ab9c5993af73f03e2710c0e6dec244ae1786152e0
Dec 05 22:04:01.706 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 22:04:02.143 INFO [stdout] bf238992092aa54bf9e5a417612a834d1389a4c80a5fc2d5862f85b7055cdd70
Dec 05 22:04:02.152 INFO running `"docker" "start" "-a" "bf238992092aa54bf9e5a417612a834d1389a4c80a5fc2d5862f85b7055cdd70"`
Dec 05 22:04:03.144 INFO [stderr] usermod: no changes
Dec 05 22:04:03.205 INFO [stderr]    Compiling rust_tut v0.1.0 (/source)
Dec 05 22:04:03.648 INFO [stderr] warning: unused imports: `u16`, `u32`, `u64`, `u8`
Dec 05 22:04:03.648 INFO [stderr]  --> src/main.rs:1:30
Dec 05 22:04:03.648 INFO [stderr]   |
Dec 05 22:04:03.648 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, isize, usize, f32, f64};
Dec 05 22:04:03.648 INFO [stderr]   |                              ^^  ^^^  ^^^  ^^^
Dec 05 22:04:03.648 INFO [stderr]   |
Dec 05 22:04:03.648 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 22:04:03.648 INFO [stderr] 
Dec 05 22:04:03.648 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 05 22:04:03.648 INFO [stderr]   --> src/main.rs:62:8
Dec 05 22:04:03.648 INFO [stderr]    |
Dec 05 22:04:03.648 INFO [stderr] 62 |     if (age_old == 5) {
Dec 05 22:04:03.648 INFO [stderr]    |        ^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 22:04:03.648 INFO [stderr]    |
Dec 05 22:04:03.648 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 05 22:04:03.648 INFO [stderr] 
Dec 05 22:04:03.648 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 05 22:04:03.648 INFO [stderr]   --> src/main.rs:78:23
Dec 05 22:04:03.649 INFO [stderr]    |
Dec 05 22:04:03.649 INFO [stderr] 78 |     let can_vote = if (age_old >= 18) { true } else { false };
Dec 05 22:04:03.649 INFO [stderr]    |                       ^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 22:04:03.649 INFO [stderr] 
Dec 05 22:04:03.649 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 05 22:04:03.649 INFO [stderr]   --> src/main.rs:85:12
Dec 05 22:04:03.649 INFO [stderr]    |
Dec 05 22:04:03.649 INFO [stderr] 85 |         if ((x % 2) == 0) {
Dec 05 22:04:03.649 INFO [stderr]    |            ^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 22:04:03.649 INFO [stderr] 
Dec 05 22:04:03.649 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 05 22:04:03.649 INFO [stderr]   --> src/main.rs:90:12
Dec 05 22:04:03.649 INFO [stderr]    |
Dec 05 22:04:03.649 INFO [stderr] 90 |         if (x > 10) {
Dec 05 22:04:03.649 INFO [stderr]    |            ^^^^^^^^ help: remove these parentheses
Dec 05 22:04:03.649 INFO [stderr] 
Dec 05 22:04:03.804 INFO [stderr] warning: unused variable: `num`
Dec 05 22:04:03.804 INFO [stderr]  --> src/main.rs:8:9
Dec 05 22:04:03.804 INFO [stderr]   |
Dec 05 22:04:03.804 INFO [stderr] 8 |     let num = 10;
Dec 05 22:04:03.804 INFO [stderr]   |         ^^^ help: consider using `_num` instead
Dec 05 22:04:03.804 INFO [stderr]   |
Dec 05 22:04:03.804 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 22:04:03.804 INFO [stderr] 
Dec 05 22:04:03.804 INFO [stderr] warning: unused variable: `f_name`
Dec 05 22:04:03.804 INFO [stderr]   --> src/main.rs:34:10
Dec 05 22:04:03.804 INFO [stderr]    |
Dec 05 22:04:03.804 INFO [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
Dec 05 22:04:03.804 INFO [stderr]    |          ^^^^^^ help: consider using `_f_name` instead
Dec 05 22:04:03.804 INFO [stderr] 
Dec 05 22:04:03.804 INFO [stderr] warning: unused variable: `l_name`
Dec 05 22:04:03.804 INFO [stderr]   --> src/main.rs:34:18
Dec 05 22:04:03.804 INFO [stderr]    |
Dec 05 22:04:03.804 INFO [stderr] 34 |     let (f_name, l_name) = ("Derek", "Banas");
Dec 05 22:04:03.804 INFO [stderr]    |                  ^^^^^^ help: consider using `_l_name` instead
Dec 05 22:04:03.804 INFO [stderr] 
Dec 05 22:04:03.804 INFO [stderr] warning: unused variable: `count`
Dec 05 22:04:03.804 INFO [stderr]    --> src/main.rs:116:9
Dec 05 22:04:03.804 INFO [stderr]     |
Dec 05 22:04:03.804 INFO [stderr] 116 |     let count = rand_string.chars().count();
Dec 05 22:04:03.804 INFO [stderr]     |         ^^^^^ help: consider using `_count` instead
Dec 05 22:04:03.804 INFO [stderr] 
Dec 05 22:04:03.840 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:04:03.840 INFO [stderr]   --> src/main.rs:10:9
Dec 05 22:04:03.840 INFO [stderr]    |
Dec 05 22:04:03.840 INFO [stderr] 10 |     let mut age: i32 = 40;
Dec 05 22:04:03.840 INFO [stderr]    |         ----^^^
Dec 05 22:04:03.840 INFO [stderr]    |         |
Dec 05 22:04:03.840 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:04:03.840 INFO [stderr]    |
Dec 05 22:04:03.840 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 22:04:03.840 INFO [stderr] 
Dec 05 22:04:03.840 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:04:03.840 INFO [stderr]   --> src/main.rs:52:9
Dec 05 22:04:03.840 INFO [stderr]    |
Dec 05 22:04:03.840 INFO [stderr] 52 |     let mut neg_4 = -4i32;
Dec 05 22:04:03.840 INFO [stderr]    |         ----^^^^^
Dec 05 22:04:03.840 INFO [stderr]    |         |
Dec 05 22:04:03.840 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:04:03.840 INFO [stderr] 
Dec 05 22:04:04.138 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
Dec 05 22:04:04.144 INFO [stderr] su: No module specific data is present
Dec 05 22:04:04.816 INFO running `"docker" "inspect" "bf238992092aa54bf9e5a417612a834d1389a4c80a5fc2d5862f85b7055cdd70"`
Dec 05 22:04:05.124 INFO running `"docker" "rm" "-f" "bf238992092aa54bf9e5a417612a834d1389a4c80a5fc2d5862f85b7055cdd70"`
Dec 05 22:04:05.390 INFO [stdout] bf238992092aa54bf9e5a417612a834d1389a4c80a5fc2d5862f85b7055cdd70
Dec 05 22:04:05.396 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 22:04:05.900 INFO [stdout] c7d4a994ec34ba846d4ab6d4edcbb0da69751855426d4667b86fb61e88b81646
Dec 05 22:04:05.908 INFO running `"docker" "start" "-a" "c7d4a994ec34ba846d4ab6d4edcbb0da69751855426d4667b86fb61e88b81646"`
Dec 05 22:04:06.980 INFO [stderr] usermod: no changes
Dec 05 22:04:07.033 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 05 22:04:07.044 INFO [stderr]      Running /target/debug/deps/rust_tut-3d4396aa4293d7d3
Dec 05 22:04:07.044 INFO [stdout] 
Dec 05 22:04:07.044 INFO [stdout] running 0 tests
Dec 05 22:04:07.044 INFO [stdout] 
Dec 05 22:04:07.044 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 22:04:07.044 INFO [stdout] 
Dec 05 22:04:07.052 INFO [stderr] su: No module specific data is present
Dec 05 22:04:07.620 INFO running `"docker" "inspect" "c7d4a994ec34ba846d4ab6d4edcbb0da69751855426d4667b86fb61e88b81646"`
Dec 05 22:04:07.852 INFO running `"docker" "rm" "-f" "c7d4a994ec34ba846d4ab6d4edcbb0da69751855426d4667b86fb61e88b81646"`
Dec 05 22:04:08.180 INFO [stdout] c7d4a994ec34ba846d4ab6d4edcbb0da69751855426d4667b86fb61e88b81646