Dec 19 21:49:26.903 INFO checking SteffenSunde/heating_primes against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:49:26.903 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/SteffenSunde/heating_primes:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:49:27.142 INFO [stdout] 9c385bf471c50846fd41c87bbbf1d197c65fc3f52d5e8c3c127906fd5f450399
Dec 19 21:49:27.146 INFO running `"docker" "start" "-a" "9c385bf471c50846fd41c87bbbf1d197c65fc3f52d5e8c3c127906fd5f450399"`
Dec 19 21:49:28.396 INFO [stderr]     Checking prime_finder v0.1.0 (/opt/crater/workdir)
Dec 19 21:49:28.588 INFO [stderr] warning: unused import: `std::fs::File`
Dec 19 21:49:28.588 INFO [stderr]  --> src/main.rs:4:5
Dec 19 21:49:28.588 INFO [stderr]   |
Dec 19 21:49:28.588 INFO [stderr] 4 | use std::fs::File;
Dec 19 21:49:28.588 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 21:49:28.588 INFO [stderr]   |
Dec 19 21:49:28.588 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 21:49:28.588 INFO [stderr] 
Dec 19 21:49:28.588 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 19 21:49:28.588 INFO [stderr]  --> src/main.rs:5:5
Dec 19 21:49:28.588 INFO [stderr]   |
Dec 19 21:49:28.588 INFO [stderr] 5 | use std::io::prelude::*;
Dec 19 21:49:28.588 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 19 21:49:28.588 INFO [stderr] 
Dec 19 21:49:28.592 INFO [stderr] warning: unused import: `std::fs::File`
Dec 19 21:49:28.592 INFO [stderr]  --> src/main.rs:4:5
Dec 19 21:49:28.592 INFO [stderr]   |
Dec 19 21:49:28.592 INFO [stderr] 4 | use std::fs::File;
Dec 19 21:49:28.592 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 21:49:28.592 INFO [stderr]   |
Dec 19 21:49:28.592 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 21:49:28.592 INFO [stderr] 
Dec 19 21:49:28.592 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 19 21:49:28.592 INFO [stderr]  --> src/main.rs:5:5
Dec 19 21:49:28.592 INFO [stderr]   |
Dec 19 21:49:28.592 INFO [stderr] 5 | use std::io::prelude::*;
Dec 19 21:49:28.592 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 19 21:49:28.592 INFO [stderr] 
Dec 19 21:49:28.667 INFO [stderr] warning: unused variable: `number`
Dec 19 21:49:28.667 INFO [stderr]   --> src/factorisation.rs:45:21
Dec 19 21:49:28.667 INFO [stderr]    |
Dec 19 21:49:28.667 INFO [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
Dec 19 21:49:28.667 INFO [stderr]    |                     ^^^^^^ help: consider using `_number` instead
Dec 19 21:49:28.667 INFO [stderr]    |
Dec 19 21:49:28.667 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:49:28.668 INFO [stderr] 
Dec 19 21:49:28.672 INFO [stderr] warning: unused variable: `number`
Dec 19 21:49:28.672 INFO [stderr]   --> src/factorisation.rs:45:21
Dec 19 21:49:28.672 INFO [stderr]    |
Dec 19 21:49:28.672 INFO [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
Dec 19 21:49:28.672 INFO [stderr]    |                     ^^^^^^ help: consider using `_number` instead
Dec 19 21:49:28.672 INFO [stderr]    |
Dec 19 21:49:28.672 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:49:28.672 INFO [stderr] 
Dec 19 21:49:28.676 INFO [stderr] warning: function is never used: `sieve_of_eratoshenes`
Dec 19 21:49:28.676 INFO [stderr]   --> src/prime.rs:18:1
Dec 19 21:49:28.676 INFO [stderr]    |
Dec 19 21:49:28.676 INFO [stderr] 18 | pub fn sieve_of_eratoshenes() {}
Dec 19 21:49:28.676 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:49:28.676 INFO [stderr]    |
Dec 19 21:49:28.676 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 21:49:28.676 INFO [stderr] 
Dec 19 21:49:28.676 INFO [stderr] warning: function is never used: `pollards_rho`
Dec 19 21:49:28.676 INFO [stderr]   --> src/factorisation.rs:45:1
Dec 19 21:49:28.676 INFO [stderr]    |
Dec 19 21:49:28.676 INFO [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
Dec 19 21:49:28.676 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:49:28.676 INFO [stderr] 
Dec 19 21:49:28.690 INFO [stderr] warning: function is never used: `sieve_of_eratoshenes`
Dec 19 21:49:28.690 INFO [stderr]   --> src/prime.rs:18:1
Dec 19 21:49:28.690 INFO [stderr]    |
Dec 19 21:49:28.690 INFO [stderr] 18 | pub fn sieve_of_eratoshenes() {}
Dec 19 21:49:28.690 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:49:28.690 INFO [stderr]    |
Dec 19 21:49:28.690 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 21:49:28.690 INFO [stderr] 
Dec 19 21:49:28.690 INFO [stderr] warning: function is never used: `pollards_rho`
Dec 19 21:49:28.690 INFO [stderr]   --> src/factorisation.rs:45:1
Dec 19 21:49:28.690 INFO [stderr]    |
Dec 19 21:49:28.690 INFO [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
Dec 19 21:49:28.690 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:49:28.690 INFO [stderr] 
Dec 19 21:49:28.720 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
Dec 19 21:49:29.028 INFO running `"docker" "inspect" "9c385bf471c50846fd41c87bbbf1d197c65fc3f52d5e8c3c127906fd5f450399"`
Dec 19 21:49:29.123 INFO running `"docker" "rm" "-f" "9c385bf471c50846fd41c87bbbf1d197c65fc3f52d5e8c3c127906fd5f450399"`
Dec 19 21:49:29.243 INFO [stdout] 9c385bf471c50846fd41c87bbbf1d197c65fc3f52d5e8c3c127906fd5f450399