[INFO] updating cached repository SteffenSunde/heating_primes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SteffenSunde/heating_primes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SteffenSunde/heating_primes" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/SteffenSunde/heating_primes"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/SteffenSunde/heating_primes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SteffenSunde/heating_primes" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/SteffenSunde/heating_primes"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/SteffenSunde/heating_primes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3d29bedbf8b540eea3e6081e472cf4ea3b76f1df
[INFO] sha for GitHub repo SteffenSunde/heating_primes: 3d29bedbf8b540eea3e6081e472cf4ea3b76f1df
[INFO] validating manifest of SteffenSunde/heating_primes on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of SteffenSunde/heating_primes on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing SteffenSunde/heating_primes
[INFO] finished frobbing SteffenSunde/heating_primes
[INFO] frobbed toml for SteffenSunde/heating_primes written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/SteffenSunde/heating_primes/Cargo.toml
[INFO] started frobbing SteffenSunde/heating_primes
[INFO] finished frobbing SteffenSunde/heating_primes
[INFO] frobbed toml for SteffenSunde/heating_primes written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/SteffenSunde/heating_primes/Cargo.toml
[INFO] crate SteffenSunde/heating_primes has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking SteffenSunde/heating_primes against try#bad365140e1e8233b42b21af70a407f14ce5fec5 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-2/try#bad365140e1e8233b42b21af70a407f14ce5fec5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/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" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e478d5bf3939beb58440fdcc577a34fd2db974a3452b102b9939faee065707eb
[INFO] running `"docker" "start" "-a" "e478d5bf3939beb58440fdcc577a34fd2db974a3452b102b9939faee065707eb"`
[INFO] [stderr]     Checking prime_finder v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]   --> src/factorisation.rs:45:21
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
[INFO] [stderr]    |                     ^^^^^^ help: consider using `_number` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]   --> src/factorisation.rs:45:21
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
[INFO] [stderr]    |                     ^^^^^^ help: consider using `_number` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sieve_of_eratoshenes`
[INFO] [stderr]   --> src/prime.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn sieve_of_eratoshenes() {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pollards_rho`
[INFO] [stderr]   --> src/factorisation.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sieve_of_eratoshenes`
[INFO] [stderr]   --> src/prime.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn sieve_of_eratoshenes() {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pollards_rho`
[INFO] [stderr]   --> src/factorisation.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn pollards_rho(number: u64) -> Vec<u64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "e478d5bf3939beb58440fdcc577a34fd2db974a3452b102b9939faee065707eb"`
[INFO] running `"docker" "rm" "-f" "e478d5bf3939beb58440fdcc577a34fd2db974a3452b102b9939faee065707eb"`
[INFO] [stdout] e478d5bf3939beb58440fdcc577a34fd2db974a3452b102b9939faee065707eb