[INFO] crate parallel-iterator 0.1.4 is already in cache
[INFO] extracting crate parallel-iterator 0.1.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/parallel-iterator/0.1.4
[INFO] extracting crate parallel-iterator 0.1.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/parallel-iterator/0.1.4
[INFO] validating manifest of parallel-iterator-0.1.4 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 parallel-iterator-0.1.4 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 parallel-iterator-0.1.4
[INFO] finished frobbing parallel-iterator-0.1.4
[INFO] frobbed toml for parallel-iterator-0.1.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/parallel-iterator/0.1.4/Cargo.toml
[INFO] started frobbing parallel-iterator-0.1.4
[INFO] finished frobbing parallel-iterator-0.1.4
[INFO] frobbed toml for parallel-iterator-0.1.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/parallel-iterator/0.1.4/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 parallel-iterator-0.1.4 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/parallel-iterator/0.1.4:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 31567a1aa5e36dee5a51c5cd972d09445d136d9511f2c14730e3e3d747cfdad4
[INFO] running `"docker" "start" "-a" "31567a1aa5e36dee5a51c5cd972d09445d136d9511f2c14730e3e3d747cfdad4"`
[INFO] [stderr]    Compiling parallel-iterator v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `"docker" "inspect" "31567a1aa5e36dee5a51c5cd972d09445d136d9511f2c14730e3e3d747cfdad4"`
[INFO] running `"docker" "rm" "-f" "31567a1aa5e36dee5a51c5cd972d09445d136d9511f2c14730e3e3d747cfdad4"`
[INFO] [stdout] 31567a1aa5e36dee5a51c5cd972d09445d136d9511f2c14730e3e3d747cfdad4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/parallel-iterator/0.1.4:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 72ef3f24cdcf61567b73200b60deeee7d23076de21f19c89b601e8e3c322ba77
[INFO] running `"docker" "start" "-a" "72ef3f24cdcf61567b73200b60deeee7d23076de21f19c89b601e8e3c322ba77"`
[INFO] [stderr]    Compiling parallel-iterator v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `"docker" "inspect" "72ef3f24cdcf61567b73200b60deeee7d23076de21f19c89b601e8e3c322ba77"`
[INFO] running `"docker" "rm" "-f" "72ef3f24cdcf61567b73200b60deeee7d23076de21f19c89b601e8e3c322ba77"`
[INFO] [stdout] 72ef3f24cdcf61567b73200b60deeee7d23076de21f19c89b601e8e3c322ba77
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/parallel-iterator/0.1.4:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] f23f7b13c4a1f5576b532288db1fda6cdb1554a0f8a07a8f9ac37f4239427bc1
[INFO] running `"docker" "start" "-a" "f23f7b13c4a1f5576b532288db1fda6cdb1554a0f8a07a8f9ac37f4239427bc1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/parallel_iterator-1cfaa2415f55bd50
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_parallel_vs_sequential ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parallel-iterator
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs -  (line 9) ... ok
[INFO] [stdout] test src/lib.rs -  (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f23f7b13c4a1f5576b532288db1fda6cdb1554a0f8a07a8f9ac37f4239427bc1"`
[INFO] running `"docker" "rm" "-f" "f23f7b13c4a1f5576b532288db1fda6cdb1554a0f8a07a8f9ac37f4239427bc1"`
[INFO] [stdout] f23f7b13c4a1f5576b532288db1fda6cdb1554a0f8a07a8f9ac37f4239427bc1