Nov 30 00:25:33.693 INFO checking k-masatany/rust_self_study against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 00:25:33.693 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 00:25:34.040 INFO [stdout] 77e64be3cb2c0e0258f79d0ac070afc5d6bacc2e15ca14d19021079df9de0226
Nov 30 00:25:34.048 INFO running `"docker" "start" "-a" "77e64be3cb2c0e0258f79d0ac070afc5d6bacc2e15ca14d19021079df9de0226"`
Nov 30 00:25:35.705 INFO [stderr] usermod: no changes
Nov 30 00:25:35.774 INFO [stderr]     Checking rust_self_study v0.1.0 (/source)
Nov 30 00:25:36.240 INFO [stderr] warning: unused variable: `n`
Nov 30 00:25:36.240 INFO [stderr]  --> src/main.rs:7:9
Nov 30 00:25:36.240 INFO [stderr]   |
Nov 30 00:25:36.240 INFO [stderr] 7 |     let n = buffer.trim().parse::<u64>().unwrap();
Nov 30 00:25:36.240 INFO [stderr]   |         ^ help: consider using `_n` instead
Nov 30 00:25:36.240 INFO [stderr]   |
Nov 30 00:25:36.240 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 30 00:25:36.240 INFO [stderr] 
Nov 30 00:25:36.252 INFO [stderr] warning: function is never used: `multiples_of_3_and_5`
Nov 30 00:25:36.252 INFO [stderr]  --> src/problems/prob1.rs:1:1
Nov 30 00:25:36.252 INFO [stderr]   |
Nov 30 00:25:36.252 INFO [stderr] 1 | pub fn multiples_of_3_and_5(n: u32) -> u64{
Nov 30 00:25:36.252 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.252 INFO [stderr]   |
Nov 30 00:25:36.252 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 00:25:36.252 INFO [stderr] 
Nov 30 00:25:36.252 INFO [stderr] warning: function is never used: `tail_multiples_of_3_and_5`
Nov 30 00:25:36.252 INFO [stderr]  --> src/problems/prob1.rs:5:1
Nov 30 00:25:36.252 INFO [stderr]   |
Nov 30 00:25:36.252 INFO [stderr] 5 | fn tail_multiples_of_3_and_5(n: u32, att: u64) -> u64 {
Nov 30 00:25:36.252 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.252 INFO [stderr] 
Nov 30 00:25:36.252 INFO [stderr] warning: function is never used: `even_fibonacci_numbers`
Nov 30 00:25:36.252 INFO [stderr]  --> src/problems/prob2.rs:1:1
Nov 30 00:25:36.252 INFO [stderr]   |
Nov 30 00:25:36.252 INFO [stderr] 1 | pub fn even_fibonacci_numbers(lim: u64) -> u64 {
Nov 30 00:25:36.252 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.252 INFO [stderr] 
Nov 30 00:25:36.252 INFO [stderr] warning: function is never used: `tail_even_fibonacci_numbers`
Nov 30 00:25:36.253 INFO [stderr]  --> src/problems/prob2.rs:5:1
Nov 30 00:25:36.253 INFO [stderr]   |
Nov 30 00:25:36.253 INFO [stderr] 5 | fn tail_even_fibonacci_numbers(lim: u64, current: u64, before: u64, att: u64) -> u64 {
Nov 30 00:25:36.253 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.253 INFO [stderr] 
Nov 30 00:25:36.253 INFO [stderr] warning: function is never used: `largest_prime_factor`
Nov 30 00:25:36.253 INFO [stderr]  --> src/problems/prob3.rs:1:1
Nov 30 00:25:36.253 INFO [stderr]   |
Nov 30 00:25:36.253 INFO [stderr] 1 | pub fn largest_prime_factor(n: u64) -> u64 {
Nov 30 00:25:36.253 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.253 INFO [stderr] 
Nov 30 00:25:36.253 INFO [stderr] warning: function is never used: `tail_largest_prime_factor`
Nov 30 00:25:36.253 INFO [stderr]  --> src/problems/prob3.rs:5:1
Nov 30 00:25:36.253 INFO [stderr]   |
Nov 30 00:25:36.253 INFO [stderr] 5 | fn tail_largest_prime_factor(n: u64, lpf: u64, att: u64) -> u64 {
Nov 30 00:25:36.253 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.253 INFO [stderr] 
Nov 30 00:25:36.440 INFO [stderr] warning: unused variable: `n`
Nov 30 00:25:36.440 INFO [stderr]  --> src/main.rs:7:9
Nov 30 00:25:36.440 INFO [stderr]   |
Nov 30 00:25:36.440 INFO [stderr] 7 |     let n = buffer.trim().parse::<u64>().unwrap();
Nov 30 00:25:36.440 INFO [stderr]   |         ^ help: consider using `_n` instead
Nov 30 00:25:36.440 INFO [stderr]   |
Nov 30 00:25:36.440 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 30 00:25:36.440 INFO [stderr] 
Nov 30 00:25:36.452 INFO [stderr] warning: function is never used: `multiples_of_3_and_5`
Nov 30 00:25:36.452 INFO [stderr]  --> src/problems/prob1.rs:1:1
Nov 30 00:25:36.452 INFO [stderr]   |
Nov 30 00:25:36.452 INFO [stderr] 1 | pub fn multiples_of_3_and_5(n: u32) -> u64{
Nov 30 00:25:36.452 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.452 INFO [stderr]   |
Nov 30 00:25:36.452 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 00:25:36.452 INFO [stderr] 
Nov 30 00:25:36.452 INFO [stderr] warning: function is never used: `tail_multiples_of_3_and_5`
Nov 30 00:25:36.452 INFO [stderr]  --> src/problems/prob1.rs:5:1
Nov 30 00:25:36.452 INFO [stderr]   |
Nov 30 00:25:36.452 INFO [stderr] 5 | fn tail_multiples_of_3_and_5(n: u32, att: u64) -> u64 {
Nov 30 00:25:36.452 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.452 INFO [stderr] 
Nov 30 00:25:36.452 INFO [stderr] warning: function is never used: `even_fibonacci_numbers`
Nov 30 00:25:36.452 INFO [stderr]  --> src/problems/prob2.rs:1:1
Nov 30 00:25:36.452 INFO [stderr]   |
Nov 30 00:25:36.452 INFO [stderr] 1 | pub fn even_fibonacci_numbers(lim: u64) -> u64 {
Nov 30 00:25:36.453 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.453 INFO [stderr] 
Nov 30 00:25:36.453 INFO [stderr] warning: function is never used: `tail_even_fibonacci_numbers`
Nov 30 00:25:36.453 INFO [stderr]  --> src/problems/prob2.rs:5:1
Nov 30 00:25:36.453 INFO [stderr]   |
Nov 30 00:25:36.453 INFO [stderr] 5 | fn tail_even_fibonacci_numbers(lim: u64, current: u64, before: u64, att: u64) -> u64 {
Nov 30 00:25:36.453 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.453 INFO [stderr] 
Nov 30 00:25:36.453 INFO [stderr] warning: function is never used: `largest_prime_factor`
Nov 30 00:25:36.453 INFO [stderr]  --> src/problems/prob3.rs:1:1
Nov 30 00:25:36.453 INFO [stderr]   |
Nov 30 00:25:36.453 INFO [stderr] 1 | pub fn largest_prime_factor(n: u64) -> u64 {
Nov 30 00:25:36.453 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.453 INFO [stderr] 
Nov 30 00:25:36.453 INFO [stderr] warning: function is never used: `tail_largest_prime_factor`
Nov 30 00:25:36.453 INFO [stderr]  --> src/problems/prob3.rs:5:1
Nov 30 00:25:36.453 INFO [stderr]   |
Nov 30 00:25:36.453 INFO [stderr] 5 | fn tail_largest_prime_factor(n: u64, lpf: u64, att: u64) -> u64 {
Nov 30 00:25:36.453 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:25:36.453 INFO [stderr] 
Nov 30 00:25:36.474 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
Nov 30 00:25:36.476 INFO [stderr] su: No module specific data is present
Nov 30 00:25:37.254 INFO running `"docker" "inspect" "77e64be3cb2c0e0258f79d0ac070afc5d6bacc2e15ca14d19021079df9de0226"`
Nov 30 00:25:37.608 INFO running `"docker" "rm" "-f" "77e64be3cb2c0e0258f79d0ac070afc5d6bacc2e15ca14d19021079df9de0226"`
Nov 30 00:25:37.944 INFO [stdout] 77e64be3cb2c0e0258f79d0ac070afc5d6bacc2e15ca14d19021079df9de0226