[INFO] crate primal-check 0.2.3 is already in cache
[INFO] extracting crate primal-check 0.2.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/primal-check/0.2.3
[INFO] extracting crate primal-check 0.2.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/primal-check/0.2.3
[INFO] validating manifest of primal-check-0.2.3 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 primal-check-0.2.3 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 primal-check-0.2.3
[INFO] finished frobbing primal-check-0.2.3
[INFO] frobbed toml for primal-check-0.2.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/primal-check/0.2.3/Cargo.toml
[INFO] started frobbing primal-check-0.2.3
[INFO] finished frobbing primal-check-0.2.3
[INFO] frobbed toml for primal-check-0.2.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/primal-check/0.2.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 primal-check-0.2.3 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/primal-check/0.2.3:/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] 20ac77c91387739e2120dee508be11a62d2d4e58013eb97c5f8cf1d04d76119d
[INFO] running `"docker" "start" "-a" "20ac77c91387739e2120dee508be11a62d2d4e58013eb97c5f8cf1d04d76119d"`
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling primal-check v0.2.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `"docker" "inspect" "20ac77c91387739e2120dee508be11a62d2d4e58013eb97c5f8cf1d04d76119d"`
[INFO] running `"docker" "rm" "-f" "20ac77c91387739e2120dee508be11a62d2d4e58013eb97c5f8cf1d04d76119d"`
[INFO] [stdout] 20ac77c91387739e2120dee508be11a62d2d4e58013eb97c5f8cf1d04d76119d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/primal-check/0.2.3:/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] d510d8a03c2cb4595ba9bfad156467a5e79c030f01965244ab744d197d8ac1a7
[INFO] running `"docker" "start" "-a" "d510d8a03c2cb4595ba9bfad156467a5e79c030f01965244ab744d197d8ac1a7"`
[INFO] [stderr]    Compiling primal-sieve v0.2.9
[INFO] [stderr]    Compiling primal-check v0.2.3
[INFO] [stderr]    Compiling primal v0.2.3
[INFO] [stderr]    Compiling primal-check v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/perfect_power.rs:121:43
[INFO] [stderr]     |
[INFO] [stderr] 121 |                        if is_prime { Some((expected))} else { None })
[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 3.99s
[INFO] running `"docker" "inspect" "d510d8a03c2cb4595ba9bfad156467a5e79c030f01965244ab744d197d8ac1a7"`
[INFO] running `"docker" "rm" "-f" "d510d8a03c2cb4595ba9bfad156467a5e79c030f01965244ab744d197d8ac1a7"`
[INFO] [stdout] d510d8a03c2cb4595ba9bfad156467a5e79c030f01965244ab744d197d8ac1a7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/primal-check/0.2.3:/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] f265970c913feabaf756e8ba08ec521247cef39b3d8cdaaff9e3636d2318ee1a
[INFO] running `"docker" "start" "-a" "f265970c913feabaf756e8ba08ec521247cef39b3d8cdaaff9e3636d2318ee1a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/primal_check-57b0b6c9660582ec
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test is_prime::tests::miller_rabin_large ... ok
[INFO] [stdout] test is_prime::tests::mod_mul ... ok
[INFO] [stdout] test is_prime::tests::modulo ... ok
[INFO] [stdout] test is_prime::tests::mul ... ok
[INFO] [stdout] test perfect_power::tests::perfect_and_prime_power ... ok
[INFO] [stdout] test is_prime::tests::miller_rabin ... ok
[INFO] [stderr]    Doc-tests primal-check
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/perfect_power.rs - perfect_power::as_perfect_power (line 20) ... ok
[INFO] [stdout] test src/is_prime.rs - is_prime::miller_rabin (line 90) ... ok
[INFO] [stdout] test src/perfect_power.rs - perfect_power::as_prime_power (line 72) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f265970c913feabaf756e8ba08ec521247cef39b3d8cdaaff9e3636d2318ee1a"`
[INFO] running `"docker" "rm" "-f" "f265970c913feabaf756e8ba08ec521247cef39b3d8cdaaff9e3636d2318ee1a"`
[INFO] [stdout] f265970c913feabaf756e8ba08ec521247cef39b3d8cdaaff9e3636d2318ee1a