[INFO] crate primeval 0.2.4 is already in cache
[INFO] extracting crate primeval 0.2.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/primeval/0.2.4
[INFO] extracting crate primeval 0.2.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/primeval/0.2.4
[INFO] validating manifest of primeval-0.2.4 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of primeval-0.2.4 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing primeval-0.2.4
[INFO] finished frobbing primeval-0.2.4
[INFO] frobbed toml for primeval-0.2.4 written to work/ex/beta-1.37-6/sources/1.36.0/reg/primeval/0.2.4/Cargo.toml
[INFO] started frobbing primeval-0.2.4
[INFO] finished frobbing primeval-0.2.4
[INFO] frobbed toml for primeval-0.2.4 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/primeval/0.2.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing primeval-0.2.4 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/primeval/0.2.4:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] adfa70d8ecb81c31b4257e6bc1874c77bb7e314e2dac10c096db3d75e6d09067
[INFO] running `"docker" "start" "-a" "adfa70d8ecb81c31b4257e6bc1874c77bb7e314e2dac10c096db3d75e6d09067"`
[INFO] [stderr]    Compiling primeval v0.2.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/primeval.rs:97:40
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub fn primes_gen(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]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "adfa70d8ecb81c31b4257e6bc1874c77bb7e314e2dac10c096db3d75e6d09067"`
[INFO] running `"docker" "rm" "-f" "adfa70d8ecb81c31b4257e6bc1874c77bb7e314e2dac10c096db3d75e6d09067"`
[INFO] [stdout] adfa70d8ecb81c31b4257e6bc1874c77bb7e314e2dac10c096db3d75e6d09067
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/primeval/0.2.4:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 364f89a4d87b99170afe03e8465b53b29148543da629cf4a9d4295478e2a31b1
[INFO] running `"docker" "start" "-a" "364f89a4d87b99170afe03e8465b53b29148543da629cf4a9d4295478e2a31b1"`
[INFO] [stderr]    Compiling primeval v0.2.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/primeval.rs:97:40
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub fn primes_gen(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]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "364f89a4d87b99170afe03e8465b53b29148543da629cf4a9d4295478e2a31b1"`
[INFO] running `"docker" "rm" "-f" "364f89a4d87b99170afe03e8465b53b29148543da629cf4a9d4295478e2a31b1"`
[INFO] [stdout] 364f89a4d87b99170afe03e8465b53b29148543da629cf4a9d4295478e2a31b1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/primeval/0.2.4:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 756384f2a45ee85812c9a156626b401badacec5862eac37c02d3f4deb9d19eff
[INFO] running `"docker" "start" "-a" "756384f2a45ee85812c9a156626b401badacec5862eac37c02d3f4deb9d19eff"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/primeval-865bbd575aacd933
[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] [stderr]      Running /opt/crater/target/debug/deps/primeval-a5a5b662ac7da731
[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] [stderr]      Running /opt/crater/target/debug/deps/primeval-b4c602f9bf69ad39
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test is_1_prime ... ok
[INFO] [stdout] test is_0_prime ... ok
[INFO] [stdout] test is_5_prime ... ok
[INFO] [stdout] test is_10_prime ... ok
[INFO] [stdout] test is_100_prime ... ok
[INFO] [stdout] test is_7_prime ... ok
[INFO] [stdout] test is_two_prime_test ... ok
[INFO] [stdout] test small_primes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests primeval
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/primeval.rs -  (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "756384f2a45ee85812c9a156626b401badacec5862eac37c02d3f4deb9d19eff"`
[INFO] running `"docker" "rm" "-f" "756384f2a45ee85812c9a156626b401badacec5862eac37c02d3f4deb9d19eff"`
[INFO] [stdout] 756384f2a45ee85812c9a156626b401badacec5862eac37c02d3f4deb9d19eff