[INFO] fetching crate primapalooza 0.3.4...
[INFO] testing primapalooza-0.3.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate primapalooza 0.3.4 into /workspace/builds/worker-51/source
[INFO] validating manifest of crates.io crate primapalooza 0.3.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate primapalooza 0.3.4
[INFO] finished tweaking crates.io crate primapalooza 0.3.4
[INFO] tweaked toml for crates.io crate primapalooza 0.3.4 written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.1.42
[INFO] [stderr]   Downloaded num-complex v0.1.43
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea739a2b17fcda2cc9f8a7ecaa018022174123c26870065e3a84d98a592ba756
[INFO] running `Command { std: "docker" "start" "-a" "ea739a2b17fcda2cc9f8a7ecaa018022174123c26870065e3a84d98a592ba756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea739a2b17fcda2cc9f8a7ecaa018022174123c26870065e3a84d98a592ba756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea739a2b17fcda2cc9f8a7ecaa018022174123c26870065e3a84d98a592ba756", kill_on_drop: false }`
[INFO] [stdout] ea739a2b17fcda2cc9f8a7ecaa018022174123c26870065e3a84d98a592ba756
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 281ecd92cc80241934b66bda641add73d7c78535d78ddf5d35850aec4087164d
[INFO] running `Command { std: "docker" "start" "-a" "281ecd92cc80241934b66bda641add73d7c78535d78ddf5d35850aec4087164d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling primapalooza v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.93s
[INFO] running `Command { std: "docker" "inspect" "281ecd92cc80241934b66bda641add73d7c78535d78ddf5d35850aec4087164d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "281ecd92cc80241934b66bda641add73d7c78535d78ddf5d35850aec4087164d", kill_on_drop: false }`
[INFO] [stdout] 281ecd92cc80241934b66bda641add73d7c78535d78ddf5d35850aec4087164d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bc87062e21d04b0b8687c0bbca2f464a555ccc0a86cd9431833d1a7bfae2cca
[INFO] running `Command { std: "docker" "start" "-a" "8bc87062e21d04b0b8687c0bbca2f464a555ccc0a86cd9431833d1a7bfae2cca", kill_on_drop: false }`
[INFO] [stderr]    Compiling primapalooza v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "8bc87062e21d04b0b8687c0bbca2f464a555ccc0a86cd9431833d1a7bfae2cca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bc87062e21d04b0b8687c0bbca2f464a555ccc0a86cd9431833d1a7bfae2cca", kill_on_drop: false }`
[INFO] [stdout] 8bc87062e21d04b0b8687c0bbca2f464a555ccc0a86cd9431833d1a7bfae2cca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 289ff586ced7cd72a01d61d4d646529e6e46c7faf67e4dd6af17d32757c4c3a5
[INFO] running `Command { std: "docker" "start" "-a" "289ff586ced7cd72a01d61d4d646529e6e46c7faf67e4dd6af17d32757c4c3a5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/primapalooza-b74b180c8d00022f)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test get_next_prime_number_test ... ok
[INFO] [stdout] test greatest_common_factor_test ... ok
[INFO] [stdout] test is_lucky_number_test ... ok
[INFO] [stdout] test is_triangular_number_test ... ok
[INFO] [stdout] test least_common_multiple_test ... ok
[INFO] [stdout] test mersenne_prime_test ... ok
[INFO] [stdout] test get_twin_primes_test ... ok
[INFO] [stdout] test get_nth_prime_test ... ok
[INFO] [stdout] test number_of_factors_test ... ok
[INFO] [stdout] test number_of_primes_test ... ok
[INFO] [stdout] test perfect_number_test ... ok
[INFO] [stdout] test should_not_be_a_prime_number ... ok
[INFO] [stderr]    Doc-tests primapalooza
[INFO] [stdout] test generate_primes_test ... ok
[INFO] [stdout] test prime_factorization_test ... ok
[INFO] [stdout] test is_it_a_prime_number ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - is_prime_why_not (line 167) ... ok
[INFO] [stdout] test src/lib.rs - least_common_multiple (line 311) ... ok
[INFO] [stdout] test src/lib.rs - get_next_prime_number (line 204) ... ok
[INFO] [stdout] test src/lib.rs - prime_factorization (line 249) ... ok
[INFO] [stdout] test src/lib.rs - is_prime (line 135) ... ok
[INFO] [stdout] test src/lib.rs - get_nth_prime (line 438) ... ok
[INFO] [stdout] test src/lib.rs - perfect_number (line 425) ... ok
[INFO] [stdout] test src/lib.rs - generate_primes (line 453) ... ok
[INFO] [stdout] test src/lib.rs - number_of_primes (line 332) ... ok
[INFO] [stdout] test src/lib.rs - is_lucky_number (line 580) ... ok
[INFO] [stdout] test src/lib.rs - mersenne_prime (line 407) ... ok
[INFO] [stdout] test src/lib.rs - greatest_common_factor (line 278) ... ok
[INFO] [stdout] test src/lib.rs - is_triangular_number (line 601) ... ok
[INFO] [stdout] test src/lib.rs - get_twin_primes (line 225) ... ok
[INFO] [stdout] test src/lib.rs - number_of_factors (line 369) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "289ff586ced7cd72a01d61d4d646529e6e46c7faf67e4dd6af17d32757c4c3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "289ff586ced7cd72a01d61d4d646529e6e46c7faf67e4dd6af17d32757c4c3a5", kill_on_drop: false }`
[INFO] [stdout] 289ff586ced7cd72a01d61d4d646529e6e46c7faf67e4dd6af17d32757c4c3a5