Dec 17 21:49:14.204 INFO checking k-masatany/rust_self_study against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:49:14.204 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/k-masatany/rust_self_study:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 21:49:14.630 INFO [stdout] 971a8ac479ef1a9dfbb1787ddd93d156b8c6326bcdee24015764ae59c36b6715
Dec 17 21:49:14.632 INFO running `"docker" "start" "-a" "971a8ac479ef1a9dfbb1787ddd93d156b8c6326bcdee24015764ae59c36b6715"`
Dec 17 21:49:15.972 INFO [stderr]     Checking rust_self_study v0.1.0 (/opt/crater/workdir)
Dec 17 21:49:16.301 INFO [stderr] warning: unused variable: `n`
Dec 17 21:49:16.301 INFO [stderr]  --> src/main.rs:7:9
Dec 17 21:49:16.301 INFO [stderr]   |
Dec 17 21:49:16.301 INFO [stderr] 7 |     let n = buffer.trim().parse::<u64>().unwrap();
Dec 17 21:49:16.301 INFO [stderr]   |         ^ help: consider using `_n` instead
Dec 17 21:49:16.301 INFO [stderr]   |
Dec 17 21:49:16.301 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 21:49:16.301 INFO [stderr] 
Dec 17 21:49:16.311 INFO [stderr] warning: function is never used: `multiples_of_3_and_5`
Dec 17 21:49:16.311 INFO [stderr]  --> src/problems/prob1.rs:1:1
Dec 17 21:49:16.311 INFO [stderr]   |
Dec 17 21:49:16.311 INFO [stderr] 1 | pub fn multiples_of_3_and_5(n: u32) -> u64{
Dec 17 21:49:16.311 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.311 INFO [stderr]   |
Dec 17 21:49:16.311 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 21:49:16.311 INFO [stderr] 
Dec 17 21:49:16.311 INFO [stderr] warning: function is never used: `tail_multiples_of_3_and_5`
Dec 17 21:49:16.311 INFO [stderr]  --> src/problems/prob1.rs:5:1
Dec 17 21:49:16.311 INFO [stderr]   |
Dec 17 21:49:16.311 INFO [stderr] 5 | fn tail_multiples_of_3_and_5(n: u32, att: u64) -> u64 {
Dec 17 21:49:16.311 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.311 INFO [stderr] 
Dec 17 21:49:16.311 INFO [stderr] warning: function is never used: `even_fibonacci_numbers`
Dec 17 21:49:16.311 INFO [stderr]  --> src/problems/prob2.rs:1:1
Dec 17 21:49:16.311 INFO [stderr]   |
Dec 17 21:49:16.311 INFO [stderr] 1 | pub fn even_fibonacci_numbers(lim: u64) -> u64 {
Dec 17 21:49:16.311 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.312 INFO [stderr] 
Dec 17 21:49:16.312 INFO [stderr] warning: function is never used: `tail_even_fibonacci_numbers`
Dec 17 21:49:16.312 INFO [stderr]  --> src/problems/prob2.rs:5:1
Dec 17 21:49:16.312 INFO [stderr]   |
Dec 17 21:49:16.312 INFO [stderr] 5 | fn tail_even_fibonacci_numbers(lim: u64, current: u64, before: u64, att: u64) -> u64 {
Dec 17 21:49:16.312 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.312 INFO [stderr] 
Dec 17 21:49:16.312 INFO [stderr] warning: function is never used: `largest_prime_factor`
Dec 17 21:49:16.312 INFO [stderr]  --> src/problems/prob3.rs:1:1
Dec 17 21:49:16.312 INFO [stderr]   |
Dec 17 21:49:16.312 INFO [stderr] 1 | pub fn largest_prime_factor(n: u64) -> u64 {
Dec 17 21:49:16.312 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.312 INFO [stderr] 
Dec 17 21:49:16.312 INFO [stderr] warning: function is never used: `tail_largest_prime_factor`
Dec 17 21:49:16.312 INFO [stderr]  --> src/problems/prob3.rs:5:1
Dec 17 21:49:16.313 INFO [stderr]   |
Dec 17 21:49:16.313 INFO [stderr] 5 | fn tail_largest_prime_factor(n: u64, lpf: u64, att: u64) -> u64 {
Dec 17 21:49:16.313 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.313 INFO [stderr] 
Dec 17 21:49:16.347 INFO [stderr] warning: unused variable: `n`
Dec 17 21:49:16.347 INFO [stderr]  --> src/main.rs:7:9
Dec 17 21:49:16.347 INFO [stderr]   |
Dec 17 21:49:16.347 INFO [stderr] 7 |     let n = buffer.trim().parse::<u64>().unwrap();
Dec 17 21:49:16.347 INFO [stderr]   |         ^ help: consider using `_n` instead
Dec 17 21:49:16.347 INFO [stderr]   |
Dec 17 21:49:16.347 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 21:49:16.347 INFO [stderr] 
Dec 17 21:49:16.358 INFO [stderr] warning: function is never used: `multiples_of_3_and_5`
Dec 17 21:49:16.358 INFO [stderr]  --> src/problems/prob1.rs:1:1
Dec 17 21:49:16.358 INFO [stderr]   |
Dec 17 21:49:16.358 INFO [stderr] 1 | pub fn multiples_of_3_and_5(n: u32) -> u64{
Dec 17 21:49:16.358 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.358 INFO [stderr]   |
Dec 17 21:49:16.358 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 21:49:16.358 INFO [stderr] 
Dec 17 21:49:16.358 INFO [stderr] warning: function is never used: `tail_multiples_of_3_and_5`
Dec 17 21:49:16.358 INFO [stderr]  --> src/problems/prob1.rs:5:1
Dec 17 21:49:16.358 INFO [stderr]   |
Dec 17 21:49:16.358 INFO [stderr] 5 | fn tail_multiples_of_3_and_5(n: u32, att: u64) -> u64 {
Dec 17 21:49:16.358 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.358 INFO [stderr] 
Dec 17 21:49:16.358 INFO [stderr] warning: function is never used: `even_fibonacci_numbers`
Dec 17 21:49:16.358 INFO [stderr]  --> src/problems/prob2.rs:1:1
Dec 17 21:49:16.358 INFO [stderr]   |
Dec 17 21:49:16.358 INFO [stderr] 1 | pub fn even_fibonacci_numbers(lim: u64) -> u64 {
Dec 17 21:49:16.358 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.358 INFO [stderr] 
Dec 17 21:49:16.358 INFO [stderr] warning: function is never used: `tail_even_fibonacci_numbers`
Dec 17 21:49:16.359 INFO [stderr]  --> src/problems/prob2.rs:5:1
Dec 17 21:49:16.359 INFO [stderr]   |
Dec 17 21:49:16.359 INFO [stderr] 5 | fn tail_even_fibonacci_numbers(lim: u64, current: u64, before: u64, att: u64) -> u64 {
Dec 17 21:49:16.359 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.359 INFO [stderr] 
Dec 17 21:49:16.359 INFO [stderr] warning: function is never used: `largest_prime_factor`
Dec 17 21:49:16.359 INFO [stderr]  --> src/problems/prob3.rs:1:1
Dec 17 21:49:16.359 INFO [stderr]   |
Dec 17 21:49:16.359 INFO [stderr] 1 | pub fn largest_prime_factor(n: u64) -> u64 {
Dec 17 21:49:16.359 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.359 INFO [stderr] 
Dec 17 21:49:16.359 INFO [stderr] warning: function is never used: `tail_largest_prime_factor`
Dec 17 21:49:16.359 INFO [stderr]  --> src/problems/prob3.rs:5:1
Dec 17 21:49:16.359 INFO [stderr]   |
Dec 17 21:49:16.359 INFO [stderr] 5 | fn tail_largest_prime_factor(n: u64, lpf: u64, att: u64) -> u64 {
Dec 17 21:49:16.359 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:16.359 INFO [stderr] 
Dec 17 21:49:16.392 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Dec 17 21:49:17.107 INFO running `"docker" "inspect" "971a8ac479ef1a9dfbb1787ddd93d156b8c6326bcdee24015764ae59c36b6715"`
Dec 17 21:49:17.342 INFO running `"docker" "rm" "-f" "971a8ac479ef1a9dfbb1787ddd93d156b8c6326bcdee24015764ae59c36b6715"`
Dec 17 21:49:17.455 INFO [stdout] 971a8ac479ef1a9dfbb1787ddd93d156b8c6326bcdee24015764ae59c36b6715