Dec 17 21:49:10.586 INFO checking k-masatany/rust_self_study against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 21:49:10.586 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 21:49:10.868 INFO [stdout] f4dc040000c0a68084ab50f8af447844d26d0df6f53f922a49279cecc295ecbc
Dec 17 21:49:10.870 INFO running `"docker" "start" "-a" "f4dc040000c0a68084ab50f8af447844d26d0df6f53f922a49279cecc295ecbc"`
Dec 17 21:49:11.881 INFO [stderr]     Checking rust_self_study v0.1.0 (/opt/crater/workdir)
Dec 17 21:49:12.233 INFO [stderr] warning: unused variable: `n`
Dec 17 21:49:12.233 INFO [stderr]  --> src/main.rs:7:9
Dec 17 21:49:12.233 INFO [stderr]   |
Dec 17 21:49:12.233 INFO [stderr] 7 |     let n = buffer.trim().parse::<u64>().unwrap();
Dec 17 21:49:12.233 INFO [stderr]   |         ^ help: consider using `_n` instead
Dec 17 21:49:12.233 INFO [stderr]   |
Dec 17 21:49:12.234 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 21:49:12.234 INFO [stderr] 
Dec 17 21:49:12.244 INFO [stderr] warning: function is never used: `multiples_of_3_and_5`
Dec 17 21:49:12.244 INFO [stderr]  --> src/problems/prob1.rs:1:1
Dec 17 21:49:12.244 INFO [stderr]   |
Dec 17 21:49:12.244 INFO [stderr] 1 | pub fn multiples_of_3_and_5(n: u32) -> u64{
Dec 17 21:49:12.244 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.244 INFO [stderr]   |
Dec 17 21:49:12.244 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 21:49:12.244 INFO [stderr] 
Dec 17 21:49:12.244 INFO [stderr] warning: function is never used: `tail_multiples_of_3_and_5`
Dec 17 21:49:12.244 INFO [stderr]  --> src/problems/prob1.rs:5:1
Dec 17 21:49:12.244 INFO [stderr]   |
Dec 17 21:49:12.244 INFO [stderr] 5 | fn tail_multiples_of_3_and_5(n: u32, att: u64) -> u64 {
Dec 17 21:49:12.244 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.244 INFO [stderr] 
Dec 17 21:49:12.244 INFO [stderr] warning: function is never used: `even_fibonacci_numbers`
Dec 17 21:49:12.244 INFO [stderr]  --> src/problems/prob2.rs:1:1
Dec 17 21:49:12.244 INFO [stderr]   |
Dec 17 21:49:12.244 INFO [stderr] 1 | pub fn even_fibonacci_numbers(lim: u64) -> u64 {
Dec 17 21:49:12.244 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.244 INFO [stderr] 
Dec 17 21:49:12.244 INFO [stderr] warning: function is never used: `tail_even_fibonacci_numbers`
Dec 17 21:49:12.244 INFO [stderr]  --> src/problems/prob2.rs:5:1
Dec 17 21:49:12.244 INFO [stderr]   |
Dec 17 21:49:12.244 INFO [stderr] 5 | fn tail_even_fibonacci_numbers(lim: u64, current: u64, before: u64, att: u64) -> u64 {
Dec 17 21:49:12.244 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.244 INFO [stderr] 
Dec 17 21:49:12.244 INFO [stderr] warning: function is never used: `largest_prime_factor`
Dec 17 21:49:12.244 INFO [stderr]  --> src/problems/prob3.rs:1:1
Dec 17 21:49:12.245 INFO [stderr]   |
Dec 17 21:49:12.245 INFO [stderr] 1 | pub fn largest_prime_factor(n: u64) -> u64 {
Dec 17 21:49:12.245 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.245 INFO [stderr] 
Dec 17 21:49:12.245 INFO [stderr] warning: function is never used: `tail_largest_prime_factor`
Dec 17 21:49:12.245 INFO [stderr]  --> src/problems/prob3.rs:5:1
Dec 17 21:49:12.245 INFO [stderr]   |
Dec 17 21:49:12.245 INFO [stderr] 5 | fn tail_largest_prime_factor(n: u64, lpf: u64, att: u64) -> u64 {
Dec 17 21:49:12.245 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.245 INFO [stderr] 
Dec 17 21:49:12.284 INFO [stderr] warning: unused variable: `n`
Dec 17 21:49:12.284 INFO [stderr]  --> src/main.rs:7:9
Dec 17 21:49:12.284 INFO [stderr]   |
Dec 17 21:49:12.284 INFO [stderr] 7 |     let n = buffer.trim().parse::<u64>().unwrap();
Dec 17 21:49:12.284 INFO [stderr]   |         ^ help: consider using `_n` instead
Dec 17 21:49:12.284 INFO [stderr]   |
Dec 17 21:49:12.284 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 21:49:12.284 INFO [stderr] 
Dec 17 21:49:12.312 INFO [stderr] warning: function is never used: `multiples_of_3_and_5`
Dec 17 21:49:12.312 INFO [stderr]  --> src/problems/prob1.rs:1:1
Dec 17 21:49:12.312 INFO [stderr]   |
Dec 17 21:49:12.312 INFO [stderr] 1 | pub fn multiples_of_3_and_5(n: u32) -> u64{
Dec 17 21:49:12.312 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.312 INFO [stderr]   |
Dec 17 21:49:12.312 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 21:49:12.312 INFO [stderr] 
Dec 17 21:49:12.313 INFO [stderr] warning: function is never used: `tail_multiples_of_3_and_5`
Dec 17 21:49:12.313 INFO [stderr]  --> src/problems/prob1.rs:5:1
Dec 17 21:49:12.313 INFO [stderr]   |
Dec 17 21:49:12.313 INFO [stderr] 5 | fn tail_multiples_of_3_and_5(n: u32, att: u64) -> u64 {
Dec 17 21:49:12.313 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.313 INFO [stderr] 
Dec 17 21:49:12.313 INFO [stderr] warning: function is never used: `even_fibonacci_numbers`
Dec 17 21:49:12.313 INFO [stderr]  --> src/problems/prob2.rs:1:1
Dec 17 21:49:12.313 INFO [stderr]   |
Dec 17 21:49:12.313 INFO [stderr] 1 | pub fn even_fibonacci_numbers(lim: u64) -> u64 {
Dec 17 21:49:12.313 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.313 INFO [stderr] 
Dec 17 21:49:12.313 INFO [stderr] warning: function is never used: `tail_even_fibonacci_numbers`
Dec 17 21:49:12.313 INFO [stderr]  --> src/problems/prob2.rs:5:1
Dec 17 21:49:12.313 INFO [stderr]   |
Dec 17 21:49:12.313 INFO [stderr] 5 | fn tail_even_fibonacci_numbers(lim: u64, current: u64, before: u64, att: u64) -> u64 {
Dec 17 21:49:12.313 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.313 INFO [stderr] 
Dec 17 21:49:12.313 INFO [stderr] warning: function is never used: `largest_prime_factor`
Dec 17 21:49:12.313 INFO [stderr]  --> src/problems/prob3.rs:1:1
Dec 17 21:49:12.313 INFO [stderr]   |
Dec 17 21:49:12.313 INFO [stderr] 1 | pub fn largest_prime_factor(n: u64) -> u64 {
Dec 17 21:49:12.313 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.313 INFO [stderr] 
Dec 17 21:49:12.313 INFO [stderr] warning: function is never used: `tail_largest_prime_factor`
Dec 17 21:49:12.313 INFO [stderr]  --> src/problems/prob3.rs:5:1
Dec 17 21:49:12.313 INFO [stderr]   |
Dec 17 21:49:12.313 INFO [stderr] 5 | fn tail_largest_prime_factor(n: u64, lpf: u64, att: u64) -> u64 {
Dec 17 21:49:12.313 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:49:12.313 INFO [stderr] 
Dec 17 21:49:12.358 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Dec 17 21:49:13.439 INFO running `"docker" "inspect" "f4dc040000c0a68084ab50f8af447844d26d0df6f53f922a49279cecc295ecbc"`
Dec 17 21:49:13.830 INFO running `"docker" "rm" "-f" "f4dc040000c0a68084ab50f8af447844d26d0df6f53f922a49279cecc295ecbc"`
Dec 17 21:49:14.128 INFO [stdout] f4dc040000c0a68084ab50f8af447844d26d0df6f53f922a49279cecc295ecbc