Dec 18 05:21:37.929 INFO checking SteffenSunde/heating_primes against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:21:37.929 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:21:38.179 INFO [stdout] a20675aaf344b2f6b689bc30d9c888d6b342d7964030f41d9dcaba7ec709deac
Dec 18 05:21:38.182 INFO running `"docker" "start" "-a" "a20675aaf344b2f6b689bc30d9c888d6b342d7964030f41d9dcaba7ec709deac"`
Dec 18 05:21:38.693 INFO [stderr]     Checking prime_finder v0.1.0 (/opt/crater/workdir)
Dec 18 05:21:38.885 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 05:21:38.885 INFO [stderr]  --> src/main.rs:4:5
Dec 18 05:21:38.885 INFO [stderr]   |
Dec 18 05:21:38.885 INFO [stderr] 4 | use std::fs::File;
Dec 18 05:21:38.885 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:21:38.885 INFO [stderr]   |
Dec 18 05:21:38.885 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:21:38.885 INFO [stderr] 
Dec 18 05:21:38.885 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 18 05:21:38.886 INFO [stderr]  --> src/main.rs:5:5
Dec 18 05:21:38.886 INFO [stderr]   |
Dec 18 05:21:38.886 INFO [stderr] 5 | use std::io::prelude::*;
Dec 18 05:21:38.886 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 05:21:38.886 INFO [stderr] 
Dec 18 05:21:38.900 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 05:21:38.900 INFO [stderr]  --> src/main.rs:4:5
Dec 18 05:21:38.900 INFO [stderr]   |
Dec 18 05:21:38.900 INFO [stderr] 4 | use std::fs::File;
Dec 18 05:21:38.900 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 05:21:38.900 INFO [stderr]   |
Dec 18 05:21:38.900 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:21:38.900 INFO [stderr] 
Dec 18 05:21:38.900 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 18 05:21:38.900 INFO [stderr]  --> src/main.rs:5:5
Dec 18 05:21:38.900 INFO [stderr]   |
Dec 18 05:21:38.900 INFO [stderr] 5 | use std::io::prelude::*;
Dec 18 05:21:38.900 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 05:21:38.900 INFO [stderr] 
Dec 18 05:21:38.957 INFO [stderr] warning: unused variable: `number`
Dec 18 05:21:38.957 INFO [stderr]   --> src/factorisation.rs:45:21
Dec 18 05:21:38.957 INFO [stderr]    |
Dec 18 05:21:38.957 INFO [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
Dec 18 05:21:38.957 INFO [stderr]    |                     ^^^^^^ help: consider using `_number` instead
Dec 18 05:21:38.957 INFO [stderr]    |
Dec 18 05:21:38.957 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:21:38.957 INFO [stderr] 
Dec 18 05:21:38.968 INFO [stderr] warning: function is never used: `sieve_of_eratoshenes`
Dec 18 05:21:38.968 INFO [stderr]   --> src/prime.rs:18:1
Dec 18 05:21:38.968 INFO [stderr]    |
Dec 18 05:21:38.968 INFO [stderr] 18 | pub fn sieve_of_eratoshenes() {}
Dec 18 05:21:38.968 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:21:38.968 INFO [stderr]    |
Dec 18 05:21:38.968 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 05:21:38.969 INFO [stderr] 
Dec 18 05:21:38.969 INFO [stderr] warning: function is never used: `pollards_rho`
Dec 18 05:21:38.969 INFO [stderr]   --> src/factorisation.rs:45:1
Dec 18 05:21:38.969 INFO [stderr]    |
Dec 18 05:21:38.969 INFO [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
Dec 18 05:21:38.969 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:21:38.969 INFO [stderr] 
Dec 18 05:21:38.981 INFO [stderr] warning: unused variable: `number`
Dec 18 05:21:38.981 INFO [stderr]   --> src/factorisation.rs:45:21
Dec 18 05:21:38.981 INFO [stderr]    |
Dec 18 05:21:38.981 INFO [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
Dec 18 05:21:38.981 INFO [stderr]    |                     ^^^^^^ help: consider using `_number` instead
Dec 18 05:21:38.981 INFO [stderr]    |
Dec 18 05:21:38.981 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:21:38.981 INFO [stderr] 
Dec 18 05:21:39.001 INFO [stderr] warning: function is never used: `sieve_of_eratoshenes`
Dec 18 05:21:39.001 INFO [stderr]   --> src/prime.rs:18:1
Dec 18 05:21:39.001 INFO [stderr]    |
Dec 18 05:21:39.001 INFO [stderr] 18 | pub fn sieve_of_eratoshenes() {}
Dec 18 05:21:39.001 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:21:39.001 INFO [stderr]    |
Dec 18 05:21:39.002 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 05:21:39.002 INFO [stderr] 
Dec 18 05:21:39.002 INFO [stderr] warning: function is never used: `pollards_rho`
Dec 18 05:21:39.002 INFO [stderr]   --> src/factorisation.rs:45:1
Dec 18 05:21:39.002 INFO [stderr]    |
Dec 18 05:21:39.002 INFO [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
Dec 18 05:21:39.002 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:21:39.002 INFO [stderr] 
Dec 18 05:21:39.028 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
Dec 18 05:21:39.312 INFO running `"docker" "inspect" "a20675aaf344b2f6b689bc30d9c888d6b342d7964030f41d9dcaba7ec709deac"`
Dec 18 05:21:39.466 INFO running `"docker" "rm" "-f" "a20675aaf344b2f6b689bc30d9c888d6b342d7964030f41d9dcaba7ec709deac"`
Dec 18 05:21:39.623 INFO [stdout] a20675aaf344b2f6b689bc30d9c888d6b342d7964030f41d9dcaba7ec709deac