Dec 02 04:58:19.012 INFO testing NewlineCoding/lab_8 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 04:58:19.013 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 04:58:19.268 INFO [stdout] b7fc4ee9bacd1b92585115b97264fb088be6f76719e7272dc8ddc7bcc0903968
Dec 02 04:58:19.272 INFO running `"docker" "start" "-a" "b7fc4ee9bacd1b92585115b97264fb088be6f76719e7272dc8ddc7bcc0903968"`
Dec 02 04:58:19.619 INFO [stderr] usermod: no changes
Dec 02 04:58:19.651 INFO [stderr]    Compiling mersenne_twister v1.1.0
Dec 02 04:58:20.380 INFO [stderr]    Compiling lab_8 v0.1.0 (/source)
Dec 02 04:58:20.757 INFO [stderr] warning: unused imports: `IndependentSample`, `Range`
Dec 02 04:58:20.757 INFO [stderr]  --> src/main.rs:6:27
Dec 02 04:58:20.757 INFO [stderr]   |
Dec 02 04:58:20.757 INFO [stderr] 6 | use rand::distributions::{IndependentSample, Range};
Dec 02 04:58:20.757 INFO [stderr]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^
Dec 02 04:58:20.757 INFO [stderr]   |
Dec 02 04:58:20.759 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 02 04:58:20.759 INFO [stderr] 
Dec 02 04:58:20.759 INFO [stderr] warning: unused import: `std::collections::HashSet`
Dec 02 04:58:20.759 INFO [stderr]  --> src/main.rs:7:5
Dec 02 04:58:20.759 INFO [stderr]   |
Dec 02 04:58:20.759 INFO [stderr] 7 | use std::collections::HashSet;
Dec 02 04:58:20.759 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 04:58:20.759 INFO [stderr] 
Dec 02 04:58:20.759 INFO [stderr] warning: unused import: `mersenne_twister::MersenneTwister`
Dec 02 04:58:20.759 INFO [stderr]  --> src/main.rs:9:5
Dec 02 04:58:20.759 INFO [stderr]   |
Dec 02 04:58:20.759 INFO [stderr] 9 | use mersenne_twister::MersenneTwister;
Dec 02 04:58:20.759 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 04:58:20.759 INFO [stderr] 
Dec 02 04:58:20.759 INFO [stderr] warning: unused imports: `Rng`, `SeedableRng`
Dec 02 04:58:20.759 INFO [stderr]   --> src/main.rs:10:12
Dec 02 04:58:20.759 INFO [stderr]    |
Dec 02 04:58:20.759 INFO [stderr] 10 | use rand::{Rng, SeedableRng};
Dec 02 04:58:20.759 INFO [stderr]    |            ^^^  ^^^^^^^^^^^
Dec 02 04:58:20.759 INFO [stderr] 
Dec 02 04:58:20.759 INFO [stderr] warning: unused import: `Duration`
Dec 02 04:58:20.759 INFO [stderr]   --> src/main.rs:12:17
Dec 02 04:58:20.759 INFO [stderr]    |
Dec 02 04:58:20.759 INFO [stderr] 12 | use std::time::{Duration, Instant};
Dec 02 04:58:20.759 INFO [stderr]    |                 ^^^^^^^^
Dec 02 04:58:20.759 INFO [stderr] 
Dec 02 04:58:20.824 INFO [stderr] warning: value assigned to `tests_per_core` is never read
Dec 02 04:58:20.824 INFO [stderr]   --> src/main.rs:85:9
Dec 02 04:58:20.824 INFO [stderr]    |
Dec 02 04:58:20.824 INFO [stderr] 85 |         tests_per_core = n - 2
Dec 02 04:58:20.824 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 02 04:58:20.824 INFO [stderr]    |
Dec 02 04:58:20.824 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 02 04:58:20.824 INFO [stderr] 
Dec 02 04:58:20.824 INFO [stderr] warning: unused variable: `num_cpu`
Dec 02 04:58:20.824 INFO [stderr]    --> src/main.rs:113:9
Dec 02 04:58:20.824 INFO [stderr]     |
Dec 02 04:58:20.824 INFO [stderr] 113 |     let num_cpu = num_cpus::get();
Dec 02 04:58:20.824 INFO [stderr]     |         ^^^^^^^ help: consider using `_num_cpu` instead
Dec 02 04:58:20.824 INFO [stderr]     |
Dec 02 04:58:20.824 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 02 04:58:20.824 INFO [stderr] 
Dec 02 04:58:20.824 INFO [stderr] warning: value assigned to `tests_per_core` is never read
Dec 02 04:58:20.824 INFO [stderr]    --> src/main.rs:116:9
Dec 02 04:58:20.824 INFO [stderr]     |
Dec 02 04:58:20.824 INFO [stderr] 116 |         tests_per_core = n - 2
Dec 02 04:58:20.824 INFO [stderr]     |         ^^^^^^^^^^^^^^
Dec 02 04:58:20.824 INFO [stderr] 
Dec 02 04:58:20.825 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.825 INFO [stderr]   --> src/main.rs:17:19
Dec 02 04:58:20.825 INFO [stderr]    |
Dec 02 04:58:20.825 INFO [stderr] 17 | fn is_prime_naive(mut n: u64) -> bool {
Dec 02 04:58:20.825 INFO [stderr]    |                   ----^
Dec 02 04:58:20.825 INFO [stderr]    |                   |
Dec 02 04:58:20.825 INFO [stderr]    |                   help: remove this `mut`
Dec 02 04:58:20.825 INFO [stderr]    |
Dec 02 04:58:20.825 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 04:58:20.825 INFO [stderr] 
Dec 02 04:58:20.828 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.828 INFO [stderr]   --> src/main.rs:31:28
Dec 02 04:58:20.828 INFO [stderr]    |
Dec 02 04:58:20.828 INFO [stderr] 31 | fn modular_exp(mut a: u64, mut b: u64, mut c: u64) -> u64 {
Dec 02 04:58:20.828 INFO [stderr]    |                            ----^
Dec 02 04:58:20.828 INFO [stderr]    |                            |
Dec 02 04:58:20.828 INFO [stderr]    |                            help: remove this `mut`
Dec 02 04:58:20.828 INFO [stderr] 
Dec 02 04:58:20.828 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.828 INFO [stderr]   --> src/main.rs:31:40
Dec 02 04:58:20.828 INFO [stderr]    |
Dec 02 04:58:20.828 INFO [stderr] 31 | fn modular_exp(mut a: u64, mut b: u64, mut c: u64) -> u64 {
Dec 02 04:58:20.828 INFO [stderr]    |                                        ----^
Dec 02 04:58:20.828 INFO [stderr]    |                                        |
Dec 02 04:58:20.828 INFO [stderr]    |                                        help: remove this `mut`
Dec 02 04:58:20.828 INFO [stderr] 
Dec 02 04:58:20.831 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.831 INFO [stderr]   --> src/main.rs:52:14
Dec 02 04:58:20.831 INFO [stderr]    |
Dec 02 04:58:20.831 INFO [stderr] 52 | fn tu_finder(mut n: u64) -> (u64, u64) {
Dec 02 04:58:20.831 INFO [stderr]    |              ----^
Dec 02 04:58:20.831 INFO [stderr]    |              |
Dec 02 04:58:20.831 INFO [stderr]    |              help: remove this `mut`
Dec 02 04:58:20.831 INFO [stderr] 
Dec 02 04:58:20.833 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.833 INFO [stderr]   --> src/main.rs:79:27
Dec 02 04:58:20.833 INFO [stderr]    |
Dec 02 04:58:20.833 INFO [stderr] 79 | fn is_prime_mr_multi_core(mut n: u64, mut tests_per_core: u64) -> bool {
Dec 02 04:58:20.833 INFO [stderr]    |                           ----^
Dec 02 04:58:20.833 INFO [stderr]    |                           |
Dec 02 04:58:20.833 INFO [stderr]    |                           help: remove this `mut`
Dec 02 04:58:20.833 INFO [stderr] 
Dec 02 04:58:20.833 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.833 INFO [stderr]   --> src/main.rs:82:9
Dec 02 04:58:20.833 INFO [stderr]    |
Dec 02 04:58:20.833 INFO [stderr] 82 |     let mut workers = ThreadPool::new_with_name("worker".into(), num_cpu);
Dec 02 04:58:20.833 INFO [stderr]    |         ----^^^^^^^
Dec 02 04:58:20.833 INFO [stderr]    |         |
Dec 02 04:58:20.833 INFO [stderr]    |         help: remove this `mut`
Dec 02 04:58:20.833 INFO [stderr] 
Dec 02 04:58:20.833 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.833 INFO [stderr]   --> src/main.rs:91:9
Dec 02 04:58:20.833 INFO [stderr]    |
Dec 02 04:58:20.833 INFO [stderr] 91 |     let mut t: u64 = tu_tuple.0;
Dec 02 04:58:20.833 INFO [stderr]    |         ----^
Dec 02 04:58:20.833 INFO [stderr]    |         |
Dec 02 04:58:20.833 INFO [stderr]    |         help: remove this `mut`
Dec 02 04:58:20.833 INFO [stderr] 
Dec 02 04:58:20.833 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.833 INFO [stderr]   --> src/main.rs:92:9
Dec 02 04:58:20.834 INFO [stderr]    |
Dec 02 04:58:20.834 INFO [stderr] 92 |     let mut u: u64 = tu_tuple.1;
Dec 02 04:58:20.834 INFO [stderr]    |         ----^
Dec 02 04:58:20.834 INFO [stderr]    |         |
Dec 02 04:58:20.834 INFO [stderr]    |         help: remove this `mut`
Dec 02 04:58:20.834 INFO [stderr] 
Dec 02 04:58:20.834 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.834 INFO [stderr]    --> src/main.rs:112:28
Dec 02 04:58:20.834 INFO [stderr]     |
Dec 02 04:58:20.834 INFO [stderr] 112 | fn is_prime_mr_single_core(mut n: u64, mut tests_per_core: u64) -> bool {
Dec 02 04:58:20.834 INFO [stderr]     |                            ----^
Dec 02 04:58:20.834 INFO [stderr]     |                            |
Dec 02 04:58:20.834 INFO [stderr]     |                            help: remove this `mut`
Dec 02 04:58:20.834 INFO [stderr] 
Dec 02 04:58:20.834 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.834 INFO [stderr]    --> src/main.rs:122:9
Dec 02 04:58:20.834 INFO [stderr]     |
Dec 02 04:58:20.834 INFO [stderr] 122 |     let mut t: u64 = tu_tuple.0;
Dec 02 04:58:20.835 INFO [stderr]     |         ----^
Dec 02 04:58:20.835 INFO [stderr]     |         |
Dec 02 04:58:20.835 INFO [stderr]     |         help: remove this `mut`
Dec 02 04:58:20.835 INFO [stderr] 
Dec 02 04:58:20.835 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:20.835 INFO [stderr]    --> src/main.rs:123:9
Dec 02 04:58:20.835 INFO [stderr]     |
Dec 02 04:58:20.835 INFO [stderr] 123 |     let mut u: u64 = tu_tuple.1;
Dec 02 04:58:20.835 INFO [stderr]     |         ----^
Dec 02 04:58:20.835 INFO [stderr]     |         |
Dec 02 04:58:20.835 INFO [stderr]     |         help: remove this `mut`
Dec 02 04:58:20.835 INFO [stderr] 
Dec 02 04:58:20.838 INFO [stderr] warning: function is never used: `is_prime_naive`
Dec 02 04:58:20.838 INFO [stderr]   --> src/main.rs:17:1
Dec 02 04:58:20.838 INFO [stderr]    |
Dec 02 04:58:20.838 INFO [stderr] 17 | fn is_prime_naive(mut n: u64) -> bool {
Dec 02 04:58:20.838 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 04:58:20.838 INFO [stderr]    |
Dec 02 04:58:20.838 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 02 04:58:20.838 INFO [stderr] 
Dec 02 04:58:21.937 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
Dec 02 04:58:21.940 INFO [stderr] su: No module specific data is present
Dec 02 04:58:23.039 INFO running `"docker" "inspect" "b7fc4ee9bacd1b92585115b97264fb088be6f76719e7272dc8ddc7bcc0903968"`
Dec 02 04:58:23.267 INFO running `"docker" "rm" "-f" "b7fc4ee9bacd1b92585115b97264fb088be6f76719e7272dc8ddc7bcc0903968"`
Dec 02 04:58:23.603 INFO [stdout] b7fc4ee9bacd1b92585115b97264fb088be6f76719e7272dc8ddc7bcc0903968
Dec 02 04:58:23.609 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 04:58:24.091 INFO [stdout] 3b3e593648a48b0cc78c5fddf55c5b49c93ff020c55b7ddf0d82789e6722b6dc
Dec 02 04:58:24.093 INFO running `"docker" "start" "-a" "3b3e593648a48b0cc78c5fddf55c5b49c93ff020c55b7ddf0d82789e6722b6dc"`
Dec 02 04:58:25.190 INFO [stderr] usermod: no changes
Dec 02 04:58:25.263 INFO [stderr]    Compiling lab_8 v0.1.0 (/source)
Dec 02 04:58:26.020 INFO [stderr] warning: unused imports: `IndependentSample`, `Range`
Dec 02 04:58:26.020 INFO [stderr]  --> src/main.rs:6:27
Dec 02 04:58:26.020 INFO [stderr]   |
Dec 02 04:58:26.020 INFO [stderr] 6 | use rand::distributions::{IndependentSample, Range};
Dec 02 04:58:26.020 INFO [stderr]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^
Dec 02 04:58:26.020 INFO [stderr]   |
Dec 02 04:58:26.020 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 02 04:58:26.020 INFO [stderr] 
Dec 02 04:58:26.020 INFO [stderr] warning: unused import: `std::collections::HashSet`
Dec 02 04:58:26.020 INFO [stderr]  --> src/main.rs:7:5
Dec 02 04:58:26.020 INFO [stderr]   |
Dec 02 04:58:26.020 INFO [stderr] 7 | use std::collections::HashSet;
Dec 02 04:58:26.020 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 04:58:26.020 INFO [stderr] 
Dec 02 04:58:26.020 INFO [stderr] warning: unused import: `mersenne_twister::MersenneTwister`
Dec 02 04:58:26.020 INFO [stderr]  --> src/main.rs:9:5
Dec 02 04:58:26.020 INFO [stderr]   |
Dec 02 04:58:26.020 INFO [stderr] 9 | use mersenne_twister::MersenneTwister;
Dec 02 04:58:26.020 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 04:58:26.020 INFO [stderr] 
Dec 02 04:58:26.020 INFO [stderr] warning: unused imports: `Rng`, `SeedableRng`
Dec 02 04:58:26.020 INFO [stderr]   --> src/main.rs:10:12
Dec 02 04:58:26.020 INFO [stderr]    |
Dec 02 04:58:26.020 INFO [stderr] 10 | use rand::{Rng, SeedableRng};
Dec 02 04:58:26.020 INFO [stderr]    |            ^^^  ^^^^^^^^^^^
Dec 02 04:58:26.020 INFO [stderr] 
Dec 02 04:58:26.020 INFO [stderr] warning: unused import: `Duration`
Dec 02 04:58:26.020 INFO [stderr]   --> src/main.rs:12:17
Dec 02 04:58:26.020 INFO [stderr]    |
Dec 02 04:58:26.020 INFO [stderr] 12 | use std::time::{Duration, Instant};
Dec 02 04:58:26.020 INFO [stderr]    |                 ^^^^^^^^
Dec 02 04:58:26.020 INFO [stderr] 
Dec 02 04:58:26.080 INFO [stderr] warning: value assigned to `tests_per_core` is never read
Dec 02 04:58:26.081 INFO [stderr]   --> src/main.rs:85:9
Dec 02 04:58:26.081 INFO [stderr]    |
Dec 02 04:58:26.081 INFO [stderr] 85 |         tests_per_core = n - 2
Dec 02 04:58:26.081 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 02 04:58:26.081 INFO [stderr]    |
Dec 02 04:58:26.081 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 02 04:58:26.081 INFO [stderr] 
Dec 02 04:58:26.082 INFO [stderr] warning: unused variable: `num_cpu`
Dec 02 04:58:26.082 INFO [stderr]    --> src/main.rs:113:9
Dec 02 04:58:26.082 INFO [stderr]     |
Dec 02 04:58:26.082 INFO [stderr] 113 |     let num_cpu = num_cpus::get();
Dec 02 04:58:26.082 INFO [stderr]     |         ^^^^^^^ help: consider using `_num_cpu` instead
Dec 02 04:58:26.082 INFO [stderr]     |
Dec 02 04:58:26.086 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 02 04:58:26.086 INFO [stderr] 
Dec 02 04:58:26.086 INFO [stderr] warning: value assigned to `tests_per_core` is never read
Dec 02 04:58:26.086 INFO [stderr]    --> src/main.rs:116:9
Dec 02 04:58:26.086 INFO [stderr]     |
Dec 02 04:58:26.086 INFO [stderr] 116 |         tests_per_core = n - 2
Dec 02 04:58:26.086 INFO [stderr]     |         ^^^^^^^^^^^^^^
Dec 02 04:58:26.086 INFO [stderr] 
Dec 02 04:58:26.086 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.086 INFO [stderr]   --> src/main.rs:17:19
Dec 02 04:58:26.086 INFO [stderr]    |
Dec 02 04:58:26.087 INFO [stderr] 17 | fn is_prime_naive(mut n: u64) -> bool {
Dec 02 04:58:26.087 INFO [stderr]    |                   ----^
Dec 02 04:58:26.087 INFO [stderr]    |                   |
Dec 02 04:58:26.087 INFO [stderr]    |                   help: remove this `mut`
Dec 02 04:58:26.091 INFO [stderr]    |
Dec 02 04:58:26.091 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 04:58:26.091 INFO [stderr] 
Dec 02 04:58:26.091 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.091 INFO [stderr]   --> src/main.rs:31:28
Dec 02 04:58:26.092 INFO [stderr]    |
Dec 02 04:58:26.092 INFO [stderr] 31 | fn modular_exp(mut a: u64, mut b: u64, mut c: u64) -> u64 {
Dec 02 04:58:26.092 INFO [stderr]    |                            ----^
Dec 02 04:58:26.092 INFO [stderr]    |                            |
Dec 02 04:58:26.092 INFO [stderr]    |                            help: remove this `mut`
Dec 02 04:58:26.092 INFO [stderr] 
Dec 02 04:58:26.093 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.093 INFO [stderr]   --> src/main.rs:31:40
Dec 02 04:58:26.093 INFO [stderr]    |
Dec 02 04:58:26.093 INFO [stderr] 31 | fn modular_exp(mut a: u64, mut b: u64, mut c: u64) -> u64 {
Dec 02 04:58:26.093 INFO [stderr]    |                                        ----^
Dec 02 04:58:26.093 INFO [stderr]    |                                        |
Dec 02 04:58:26.093 INFO [stderr]    |                                        help: remove this `mut`
Dec 02 04:58:26.093 INFO [stderr] 
Dec 02 04:58:26.094 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.094 INFO [stderr]   --> src/main.rs:52:14
Dec 02 04:58:26.094 INFO [stderr]    |
Dec 02 04:58:26.094 INFO [stderr] 52 | fn tu_finder(mut n: u64) -> (u64, u64) {
Dec 02 04:58:26.094 INFO [stderr]    |              ----^
Dec 02 04:58:26.094 INFO [stderr]    |              |
Dec 02 04:58:26.094 INFO [stderr]    |              help: remove this `mut`
Dec 02 04:58:26.099 INFO [stderr] 
Dec 02 04:58:26.099 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.100 INFO [stderr]   --> src/main.rs:79:27
Dec 02 04:58:26.100 INFO [stderr]    |
Dec 02 04:58:26.100 INFO [stderr] 79 | fn is_prime_mr_multi_core(mut n: u64, mut tests_per_core: u64) -> bool {
Dec 02 04:58:26.100 INFO [stderr]    |                           ----^
Dec 02 04:58:26.100 INFO [stderr]    |                           |
Dec 02 04:58:26.100 INFO [stderr]    |                           help: remove this `mut`
Dec 02 04:58:26.101 INFO [stderr] 
Dec 02 04:58:26.101 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.101 INFO [stderr]   --> src/main.rs:82:9
Dec 02 04:58:26.101 INFO [stderr]    |
Dec 02 04:58:26.101 INFO [stderr] 82 |     let mut workers = ThreadPool::new_with_name("worker".into(), num_cpu);
Dec 02 04:58:26.101 INFO [stderr]    |         ----^^^^^^^
Dec 02 04:58:26.101 INFO [stderr]    |         |
Dec 02 04:58:26.101 INFO [stderr]    |         help: remove this `mut`
Dec 02 04:58:26.101 INFO [stderr] 
Dec 02 04:58:26.103 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.103 INFO [stderr]   --> src/main.rs:91:9
Dec 02 04:58:26.103 INFO [stderr]    |
Dec 02 04:58:26.103 INFO [stderr] 91 |     let mut t: u64 = tu_tuple.0;
Dec 02 04:58:26.103 INFO [stderr]    |         ----^
Dec 02 04:58:26.103 INFO [stderr]    |         |
Dec 02 04:58:26.103 INFO [stderr]    |         help: remove this `mut`
Dec 02 04:58:26.103 INFO [stderr] 
Dec 02 04:58:26.103 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.103 INFO [stderr]   --> src/main.rs:92:9
Dec 02 04:58:26.103 INFO [stderr]    |
Dec 02 04:58:26.103 INFO [stderr] 92 |     let mut u: u64 = tu_tuple.1;
Dec 02 04:58:26.103 INFO [stderr]    |         ----^
Dec 02 04:58:26.103 INFO [stderr]    |         |
Dec 02 04:58:26.103 INFO [stderr]    |         help: remove this `mut`
Dec 02 04:58:26.103 INFO [stderr] 
Dec 02 04:58:26.103 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.103 INFO [stderr]    --> src/main.rs:112:28
Dec 02 04:58:26.104 INFO [stderr]     |
Dec 02 04:58:26.104 INFO [stderr] 112 | fn is_prime_mr_single_core(mut n: u64, mut tests_per_core: u64) -> bool {
Dec 02 04:58:26.104 INFO [stderr]     |                            ----^
Dec 02 04:58:26.104 INFO [stderr]     |                            |
Dec 02 04:58:26.104 INFO [stderr]     |                            help: remove this `mut`
Dec 02 04:58:26.105 INFO [stderr] 
Dec 02 04:58:26.105 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.105 INFO [stderr]    --> src/main.rs:122:9
Dec 02 04:58:26.105 INFO [stderr]     |
Dec 02 04:58:26.105 INFO [stderr] 122 |     let mut t: u64 = tu_tuple.0;
Dec 02 04:58:26.105 INFO [stderr]     |         ----^
Dec 02 04:58:26.105 INFO [stderr]     |         |
Dec 02 04:58:26.105 INFO [stderr]     |         help: remove this `mut`
Dec 02 04:58:26.105 INFO [stderr] 
Dec 02 04:58:26.109 INFO [stderr] warning: variable does not need to be mutable
Dec 02 04:58:26.109 INFO [stderr]    --> src/main.rs:123:9
Dec 02 04:58:26.109 INFO [stderr]     |
Dec 02 04:58:26.109 INFO [stderr] 123 |     let mut u: u64 = tu_tuple.1;
Dec 02 04:58:26.109 INFO [stderr]     |         ----^
Dec 02 04:58:26.109 INFO [stderr]     |         |
Dec 02 04:58:26.109 INFO [stderr]     |         help: remove this `mut`
Dec 02 04:58:26.109 INFO [stderr] 
Dec 02 04:58:26.110 INFO [stderr] warning: function is never used: `is_prime_naive`
Dec 02 04:58:26.110 INFO [stderr]   --> src/main.rs:17:1
Dec 02 04:58:26.110 INFO [stderr]    |
Dec 02 04:58:26.111 INFO [stderr] 17 | fn is_prime_naive(mut n: u64) -> bool {
Dec 02 04:58:26.111 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 04:58:26.111 INFO [stderr]    |
Dec 02 04:58:26.115 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 02 04:58:26.115 INFO [stderr] 
Dec 02 04:58:26.673 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
Dec 02 04:58:26.677 INFO [stderr] su: No module specific data is present
Dec 02 04:58:27.501 INFO running `"docker" "inspect" "3b3e593648a48b0cc78c5fddf55c5b49c93ff020c55b7ddf0d82789e6722b6dc"`
Dec 02 04:58:27.779 INFO running `"docker" "rm" "-f" "3b3e593648a48b0cc78c5fddf55c5b49c93ff020c55b7ddf0d82789e6722b6dc"`
Dec 02 04:58:28.115 INFO [stdout] 3b3e593648a48b0cc78c5fddf55c5b49c93ff020c55b7ddf0d82789e6722b6dc
Dec 02 04:58:28.115 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 04:58:28.607 INFO [stdout] 51f4034e1ea9a880f70a1915bbd277530b450a2578e9686244f90ae362e94bd3
Dec 02 04:58:28.615 INFO running `"docker" "start" "-a" "51f4034e1ea9a880f70a1915bbd277530b450a2578e9686244f90ae362e94bd3"`
Dec 02 04:58:30.190 INFO [stderr] usermod: no changes
Dec 02 04:58:30.239 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 02 04:58:30.239 INFO [stderr]      Running /target/debug/deps/lab_8-c00456e0584a77bc
Dec 02 04:58:30.265 INFO [stdout] 
Dec 02 04:58:30.265 INFO [stdout] running 0 tests
Dec 02 04:58:30.265 INFO [stdout] 
Dec 02 04:58:30.265 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 04:58:30.265 INFO [stdout] 
Dec 02 04:58:30.266 INFO [stderr] su: No module specific data is present
Dec 02 04:58:31.177 INFO running `"docker" "inspect" "51f4034e1ea9a880f70a1915bbd277530b450a2578e9686244f90ae362e94bd3"`
Dec 02 04:58:31.530 INFO running `"docker" "rm" "-f" "51f4034e1ea9a880f70a1915bbd277530b450a2578e9686244f90ae362e94bd3"`
Dec 02 04:58:31.783 INFO [stdout] 51f4034e1ea9a880f70a1915bbd277530b450a2578e9686244f90ae362e94bd3
