[INFO] crate proptest-recurse 0.2.0 is already in cache
[INFO] extracting crate proptest-recurse 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/proptest-recurse/0.2.0
[INFO] extracting crate proptest-recurse 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/proptest-recurse/0.2.0
[INFO] validating manifest of proptest-recurse-0.2.0 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 proptest-recurse-0.2.0 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 proptest-recurse-0.2.0
[INFO] finished frobbing proptest-recurse-0.2.0
[INFO] frobbed toml for proptest-recurse-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/proptest-recurse/0.2.0/Cargo.toml
[INFO] started frobbing proptest-recurse-0.2.0
[INFO] finished frobbing proptest-recurse-0.2.0
[INFO] frobbed toml for proptest-recurse-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/proptest-recurse/0.2.0/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] 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 proptest-recurse-0.2.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/proptest-recurse/0.2.0:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] c13d2b6f8b40d350c229f33dc2ef95a2587970c0bd4eebc9c94cdd1f32432c89
[INFO] running `"docker" "start" "-a" "c13d2b6f8b40d350c229f33dc2ef95a2587970c0bd4eebc9c94cdd1f32432c89"`
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling im v12.3.4
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling sized-chunks v0.1.3
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling proptest v0.8.7
[INFO] [stderr]    Compiling proptest-recurse v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.59s
[INFO] running `"docker" "inspect" "c13d2b6f8b40d350c229f33dc2ef95a2587970c0bd4eebc9c94cdd1f32432c89"`
[INFO] running `"docker" "rm" "-f" "c13d2b6f8b40d350c229f33dc2ef95a2587970c0bd4eebc9c94cdd1f32432c89"`
[INFO] [stdout] c13d2b6f8b40d350c229f33dc2ef95a2587970c0bd4eebc9c94cdd1f32432c89
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/proptest-recurse/0.2.0:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] eba8e6b4471c6f05c60d19a37d826a316ab5afafd4f8b20a98ad71a919d05778
[INFO] running `"docker" "start" "-a" "eba8e6b4471c6f05c60d19a37d826a316ab5afafd4f8b20a98ad71a919d05778"`
[INFO] [stderr]    Compiling proptest-recurse v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.83s
[INFO] running `"docker" "inspect" "eba8e6b4471c6f05c60d19a37d826a316ab5afafd4f8b20a98ad71a919d05778"`
[INFO] running `"docker" "rm" "-f" "eba8e6b4471c6f05c60d19a37d826a316ab5afafd4f8b20a98ad71a919d05778"`
[INFO] [stdout] eba8e6b4471c6f05c60d19a37d826a316ab5afafd4f8b20a98ad71a919d05778
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/proptest-recurse/0.2.0:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 1497dac637fcfd10fff068105a60e05fd95639e90f96d015832dc9c9cd1c03de
[INFO] running `"docker" "start" "-a" "1497dac637fcfd10fff068105a60e05fd95639e90f96d015832dc9c9cd1c03de"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/proptest_recurse-a740100ed0dd5fbe
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mutual-96e2d426c199dba4
[INFO] [stdout] test strategy_set_send_sync ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test create_first ... ok
[INFO] [stdout] test create_second ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests proptest-recurse
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 13) ... ok
[INFO] [stdout] test src/lib.rs -  (line 27) ... ok
[INFO] [stdout] test src/lib.rs -  (line 70) ... 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" "1497dac637fcfd10fff068105a60e05fd95639e90f96d015832dc9c9cd1c03de"`
[INFO] running `"docker" "rm" "-f" "1497dac637fcfd10fff068105a60e05fd95639e90f96d015832dc9c9cd1c03de"`
[INFO] [stdout] 1497dac637fcfd10fff068105a60e05fd95639e90f96d015832dc9c9cd1c03de