[INFO] updating cached repository benaryorg/rust-prime_generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/benaryorg/rust-prime_generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/benaryorg/rust-prime_generator" "work/ex/beta-1.38-1/sources/1.37.0/gh/benaryorg/rust-prime_generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/benaryorg/rust-prime_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/benaryorg/rust-prime_generator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/benaryorg/rust-prime_generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/benaryorg/rust-prime_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 778eaa6f6afe9d3e2c23d67668864ecf9f8afa11
[INFO] sha for GitHub repo benaryorg/rust-prime_generator: 778eaa6f6afe9d3e2c23d67668864ecf9f8afa11
[INFO] validating manifest of benaryorg/rust-prime_generator 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 benaryorg/rust-prime_generator 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 benaryorg/rust-prime_generator
[INFO] finished frobbing benaryorg/rust-prime_generator
[INFO] frobbed toml for benaryorg/rust-prime_generator written to work/ex/beta-1.38-1/sources/1.37.0/gh/benaryorg/rust-prime_generator/Cargo.toml
[INFO] started frobbing benaryorg/rust-prime_generator
[INFO] finished frobbing benaryorg/rust-prime_generator
[INFO] frobbed toml for benaryorg/rust-prime_generator written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/benaryorg/rust-prime_generator/Cargo.toml
[INFO] crate benaryorg/rust-prime_generator 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 benaryorg/rust-prime_generator 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/benaryorg/rust-prime_generator:/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] 8990f1a5033015dd5eec8409fe4c8358e500ef8659b8c70de40328c472c1ccc3
[INFO] running `"docker" "start" "-a" "8990f1a5033015dd5eec8409fe4c8358e500ef8659b8c70de40328c472c1ccc3"`
[INFO] [stderr]    Compiling primes v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/main.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 |     'outer: for i in (3..LIMIT)
[INFO] [stderr]   |                      ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "8990f1a5033015dd5eec8409fe4c8358e500ef8659b8c70de40328c472c1ccc3"`
[INFO] running `"docker" "rm" "-f" "8990f1a5033015dd5eec8409fe4c8358e500ef8659b8c70de40328c472c1ccc3"`
[INFO] [stdout] 8990f1a5033015dd5eec8409fe4c8358e500ef8659b8c70de40328c472c1ccc3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/benaryorg/rust-prime_generator:/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] 5b4827a797be3a4d4b6ffbc82fd2c7441a5c1b8071c9501698e22f941ac8614b
[INFO] running `"docker" "start" "-a" "5b4827a797be3a4d4b6ffbc82fd2c7441a5c1b8071c9501698e22f941ac8614b"`
[INFO] [stderr]    Compiling primes v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/main.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 |     'outer: for i in (3..LIMIT)
[INFO] [stderr]   |                      ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "5b4827a797be3a4d4b6ffbc82fd2c7441a5c1b8071c9501698e22f941ac8614b"`
[INFO] running `"docker" "rm" "-f" "5b4827a797be3a4d4b6ffbc82fd2c7441a5c1b8071c9501698e22f941ac8614b"`
[INFO] [stdout] 5b4827a797be3a4d4b6ffbc82fd2c7441a5c1b8071c9501698e22f941ac8614b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/benaryorg/rust-prime_generator:/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] 953e486403c81f1682e2d0a519cda942ff9fce699efdd05b9f3d196542e3ad9c
[INFO] running `"docker" "start" "-a" "953e486403c81f1682e2d0a519cda942ff9fce699efdd05b9f3d196542e3ad9c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/primes-45dc19ed082c164d
[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" "953e486403c81f1682e2d0a519cda942ff9fce699efdd05b9f3d196542e3ad9c"`
[INFO] running `"docker" "rm" "-f" "953e486403c81f1682e2d0a519cda942ff9fce699efdd05b9f3d196542e3ad9c"`
[INFO] [stdout] 953e486403c81f1682e2d0a519cda942ff9fce699efdd05b9f3d196542e3ad9c