[INFO] crate primeval 0.2.4 is already in cache
[INFO] extracting crate primeval 0.2.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/primeval/0.2.4
[INFO] extracting crate primeval 0.2.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/primeval/0.2.4
[INFO] validating manifest of primeval-0.2.4 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 primeval-0.2.4 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 primeval-0.2.4
[INFO] finished frobbing primeval-0.2.4
[INFO] frobbed toml for primeval-0.2.4 written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/primeval/0.2.4/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 primeval-0.2.4 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 06e4716321f92c68549eadc87fef5d220ae25fab276f6f53daf289a30f5d95ef
[INFO] running `"docker" "start" "-a" "06e4716321f92c68549eadc87fef5d220ae25fab276f6f53daf289a30f5d95ef"`
[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 1.73s
[INFO] running `"docker" "inspect" "06e4716321f92c68549eadc87fef5d220ae25fab276f6f53daf289a30f5d95ef"`
[INFO] running `"docker" "rm" "-f" "06e4716321f92c68549eadc87fef5d220ae25fab276f6f53daf289a30f5d95ef"`
[INFO] [stdout] 06e4716321f92c68549eadc87fef5d220ae25fab276f6f53daf289a30f5d95ef
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] a875eb6cde6a26abafb56fb86c7dfa5903daceef216cc1e896a522ad498c57c1
[INFO] running `"docker" "start" "-a" "a875eb6cde6a26abafb56fb86c7dfa5903daceef216cc1e896a522ad498c57c1"`
[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 1.24s
[INFO] running `"docker" "inspect" "a875eb6cde6a26abafb56fb86c7dfa5903daceef216cc1e896a522ad498c57c1"`
[INFO] running `"docker" "rm" "-f" "a875eb6cde6a26abafb56fb86c7dfa5903daceef216cc1e896a522ad498c57c1"`
[INFO] [stdout] a875eb6cde6a26abafb56fb86c7dfa5903daceef216cc1e896a522ad498c57c1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 964463f89c8a0f232a51106dee51e3b8c4d34a8d16fc33bb6ea19cbbe3fb0fb1
[INFO] running `"docker" "start" "-a" "964463f89c8a0f232a51106dee51e3b8c4d34a8d16fc33bb6ea19cbbe3fb0fb1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/primeval-4047fd3755ee93e4
[INFO] [stderr]      Running /opt/crater/target/debug/deps/primeval-8ea087ea32e37fe8
[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] [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-c887218601cdb293
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test is_1_prime ... ok
[INFO] [stdout] test is_10_prime ... ok
[INFO] [stdout] test is_7_prime ... ok
[INFO] [stdout] test is_two_prime_test ... ok
[INFO] [stdout] test is_5_prime ... ok
[INFO] [stdout] test is_100_prime ... ok
[INFO] [stdout] test is_0_prime ... 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" "964463f89c8a0f232a51106dee51e3b8c4d34a8d16fc33bb6ea19cbbe3fb0fb1"`
[INFO] running `"docker" "rm" "-f" "964463f89c8a0f232a51106dee51e3b8c4d34a8d16fc33bb6ea19cbbe3fb0fb1"`
[INFO] [stdout] 964463f89c8a0f232a51106dee51e3b8c4d34a8d16fc33bb6ea19cbbe3fb0fb1