[INFO] updating cached repository JayDalton/hello-world
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JayDalton/hello-world
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JayDalton/hello-world" "work/ex/beta-1.38-1/sources/1.37.0/gh/JayDalton/hello-world"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JayDalton/hello-world'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JayDalton/hello-world" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JayDalton/hello-world"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JayDalton/hello-world'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2d97f82ddc352d463ec4ce0eb3d119878bd82b84
[INFO] sha for GitHub repo JayDalton/hello-world: 2d97f82ddc352d463ec4ce0eb3d119878bd82b84
[INFO] validating manifest of JayDalton/hello-world on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JayDalton/hello-world on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JayDalton/hello-world
[INFO] finished frobbing JayDalton/hello-world
[INFO] frobbed toml for JayDalton/hello-world written to work/ex/beta-1.38-1/sources/1.37.0/gh/JayDalton/hello-world/Cargo.toml
[INFO] started frobbing JayDalton/hello-world
[INFO] finished frobbing JayDalton/hello-world
[INFO] frobbed toml for JayDalton/hello-world written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JayDalton/hello-world/Cargo.toml
[INFO] crate JayDalton/hello-world already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing JayDalton/hello-world against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JayDalton/hello-world:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b0a011d19c02cc8de8badabf9f77c2deba28046305c88658bcbce600ff94a09f
[INFO] running `"docker" "start" "-a" "b0a011d19c02cc8de8badabf9f77c2deba28046305c88658bcbce600ff94a09f"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustfft v2.0.0
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> source/primes.rs:127:41
[INFO] [stderr]     |
[INFO] [stderr] 127 | pub fn basic_sieve(limit: usize) -> Box<Iterator<Item = usize>> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> source/primes.rs:151:45
[INFO] [stderr]     |
[INFO] [stderr] 151 | pub fn optimized_sieve(limit: usize) -> Box<Iterator<Item = usize>> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_num`
[INFO] [stderr]   --> source/primes.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn athkin_sieve(max_num: usize) -> HashMap<usize, bool> {
[INFO] [stderr]    |                     ^^^^^^^ help: consider prefixing with an underscore: `_max_num`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `zeigen`
[INFO] [stderr]    --> source/primes.rs:220:33
[INFO] [stderr]     |
[INFO] [stderr] 220 | pub fn primesums(grenze: usize, zeigen: bool) -> usize {
[INFO] [stderr]     |                                 ^^^^^^ help: consider prefixing with an underscore: `_zeigen`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> source/primes.rs:221:9
[INFO] [stderr]     |
[INFO] [stderr] 221 |     let mut anzahl: usize = 0;
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_factors`
[INFO] [stderr]   --> source/primes.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn get_factors(x:u64) -> Vec<u64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_prime`
[INFO] [stderr]   --> source/primes.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn is_prime(x:u64) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_prime_factors`
[INFO] [stderr]   --> source/primes.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn get_prime_factors(x:u64) -> Vec<u64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_largest_prime`
[INFO] [stderr]   --> source/primes.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn get_largest_prime(x:u64) -> u64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `athkin_sieve`
[INFO] [stderr]   --> source/primes.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn athkin_sieve(max_num: usize) -> HashMap<usize, bool> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simple_sieve`
[INFO] [stderr]    --> source/primes.rs:107:1
[INFO] [stderr]     |
[INFO] [stderr] 107 | pub fn simple_sieve(limit: usize) -> Vec<usize> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `basic_sieve`
[INFO] [stderr]    --> source/primes.rs:127:1
[INFO] [stderr]     |
[INFO] [stderr] 127 | pub fn basic_sieve(limit: usize) -> Box<Iterator<Item = usize>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_duration`
[INFO] [stderr]    --> source/primes.rs:184:1
[INFO] [stderr]     |
[INFO] [stderr] 184 | pub fn get_duration(strt: Instant) -> u64 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compare_primealgos`
[INFO] [stderr]    --> source/primes.rs:192:1
[INFO] [stderr]     |
[INFO] [stderr] 192 | pub fn compare_primealgos(){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_double`
[INFO] [stderr]   --> source/mod.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn get_double(msg: &str) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `"docker" "inspect" "b0a011d19c02cc8de8badabf9f77c2deba28046305c88658bcbce600ff94a09f"`
[INFO] running `"docker" "rm" "-f" "b0a011d19c02cc8de8badabf9f77c2deba28046305c88658bcbce600ff94a09f"`
[INFO] [stdout] b0a011d19c02cc8de8badabf9f77c2deba28046305c88658bcbce600ff94a09f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JayDalton/hello-world:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b5bad1f13da34a66823c274a7a512cbc3472e57a8366be8f2aace2f404f3fadc
[INFO] running `"docker" "start" "-a" "b5bad1f13da34a66823c274a7a512cbc3472e57a8366be8f2aace2f404f3fadc"`
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> source/primes.rs:127:41
[INFO] [stderr]     |
[INFO] [stderr] 127 | pub fn basic_sieve(limit: usize) -> Box<Iterator<Item = usize>> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> source/primes.rs:151:45
[INFO] [stderr]     |
[INFO] [stderr] 151 | pub fn optimized_sieve(limit: usize) -> Box<Iterator<Item = usize>> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_num`
[INFO] [stderr]   --> source/primes.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn athkin_sieve(max_num: usize) -> HashMap<usize, bool> {
[INFO] [stderr]    |                     ^^^^^^^ help: consider prefixing with an underscore: `_max_num`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `zeigen`
[INFO] [stderr]    --> source/primes.rs:220:33
[INFO] [stderr]     |
[INFO] [stderr] 220 | pub fn primesums(grenze: usize, zeigen: bool) -> usize {
[INFO] [stderr]     |                                 ^^^^^^ help: consider prefixing with an underscore: `_zeigen`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> source/primes.rs:221:9
[INFO] [stderr]     |
[INFO] [stderr] 221 |     let mut anzahl: usize = 0;
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_factors`
[INFO] [stderr]   --> source/primes.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn get_factors(x:u64) -> Vec<u64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_prime`
[INFO] [stderr]   --> source/primes.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn is_prime(x:u64) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_prime_factors`
[INFO] [stderr]   --> source/primes.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn get_prime_factors(x:u64) -> Vec<u64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_largest_prime`
[INFO] [stderr]   --> source/primes.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn get_largest_prime(x:u64) -> u64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `athkin_sieve`
[INFO] [stderr]   --> source/primes.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn athkin_sieve(max_num: usize) -> HashMap<usize, bool> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simple_sieve`
[INFO] [stderr]    --> source/primes.rs:107:1
[INFO] [stderr]     |
[INFO] [stderr] 107 | pub fn simple_sieve(limit: usize) -> Vec<usize> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `basic_sieve`
[INFO] [stderr]    --> source/primes.rs:127:1
[INFO] [stderr]     |
[INFO] [stderr] 127 | pub fn basic_sieve(limit: usize) -> Box<Iterator<Item = usize>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_duration`
[INFO] [stderr]    --> source/primes.rs:184:1
[INFO] [stderr]     |
[INFO] [stderr] 184 | pub fn get_duration(strt: Instant) -> u64 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compare_primealgos`
[INFO] [stderr]    --> source/primes.rs:192:1
[INFO] [stderr]     |
[INFO] [stderr] 192 | pub fn compare_primealgos(){
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_double`
[INFO] [stderr]   --> source/mod.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn get_double(msg: &str) -> f64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "b5bad1f13da34a66823c274a7a512cbc3472e57a8366be8f2aace2f404f3fadc"`
[INFO] running `"docker" "rm" "-f" "b5bad1f13da34a66823c274a7a512cbc3472e57a8366be8f2aace2f404f3fadc"`
[INFO] [stdout] b5bad1f13da34a66823c274a7a512cbc3472e57a8366be8f2aace2f404f3fadc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JayDalton/hello-world:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] d992127b43fb66855674ed8898b1e814d49b079c72d39b20a60a181bed2b0a21
[INFO] running `"docker" "start" "-a" "d992127b43fb66855674ed8898b1e814d49b079c72d39b20a60a181bed2b0a21"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_world-afea2cdef52642ce
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d992127b43fb66855674ed8898b1e814d49b079c72d39b20a60a181bed2b0a21"`
[INFO] running `"docker" "rm" "-f" "d992127b43fb66855674ed8898b1e814d49b079c72d39b20a60a181bed2b0a21"`
[INFO] [stdout] d992127b43fb66855674ed8898b1e814d49b079c72d39b20a60a181bed2b0a21