[INFO] cloning repository joyent/rust-quickcheck-helpers
[INFO] running `"git" "clone" "--bare" "git://github.com/joyent/rust-quickcheck-helpers.git" "work/cache/sources/gh/joyent/rust-quickcheck-helpers"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/joyent/rust-quickcheck-helpers'...
[INFO] running `"git" "clone" "work/cache/sources/gh/joyent/rust-quickcheck-helpers" "work/ex/beta-1.37-6/sources/1.36.0/gh/joyent/rust-quickcheck-helpers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/joyent/rust-quickcheck-helpers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/joyent/rust-quickcheck-helpers" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/joyent/rust-quickcheck-helpers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/joyent/rust-quickcheck-helpers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52a286ced9d285988deab2738a72b73a4ba81dd3
[INFO] sha for GitHub repo joyent/rust-quickcheck-helpers: 52a286ced9d285988deab2738a72b73a4ba81dd3
[INFO] validating manifest of joyent/rust-quickcheck-helpers 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 joyent/rust-quickcheck-helpers 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 joyent/rust-quickcheck-helpers
[INFO] finished frobbing joyent/rust-quickcheck-helpers
[INFO] frobbed toml for joyent/rust-quickcheck-helpers written to work/ex/beta-1.37-6/sources/1.36.0/gh/joyent/rust-quickcheck-helpers/Cargo.toml
[INFO] started frobbing joyent/rust-quickcheck-helpers
[INFO] finished frobbing joyent/rust-quickcheck-helpers
[INFO] frobbed toml for joyent/rust-quickcheck-helpers written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/joyent/rust-quickcheck-helpers/Cargo.toml
[INFO] crate joyent/rust-quickcheck-helpers already has a lockfile, it will not be regenerated
[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 joyent/rust-quickcheck-helpers 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-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/joyent/rust-quickcheck-helpers:/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] 1937d291e653de136350a63988177e68c7323f742a5c3d9736d7cc9a7566f574
[INFO] running `"docker" "start" "-a" "1937d291e653de136350a63988177e68c7323f742a5c3d9736d7cc9a7566f574"`
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling quickcheck_helpers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.78s
[INFO] running `"docker" "inspect" "1937d291e653de136350a63988177e68c7323f742a5c3d9736d7cc9a7566f574"`
[INFO] running `"docker" "rm" "-f" "1937d291e653de136350a63988177e68c7323f742a5c3d9736d7cc9a7566f574"`
[INFO] [stdout] 1937d291e653de136350a63988177e68c7323f742a5c3d9736d7cc9a7566f574
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/joyent/rust-quickcheck-helpers:/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] df76d9d79ea404bd01ebb50b6520d05e6db010703d73d00347c104a18c996514
[INFO] running `"docker" "start" "-a" "df76d9d79ea404bd01ebb50b6520d05e6db010703d73d00347c104a18c996514"`
[INFO] [stderr]    Compiling quickcheck_helpers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "df76d9d79ea404bd01ebb50b6520d05e6db010703d73d00347c104a18c996514"`
[INFO] running `"docker" "rm" "-f" "df76d9d79ea404bd01ebb50b6520d05e6db010703d73d00347c104a18c996514"`
[INFO] [stdout] df76d9d79ea404bd01ebb50b6520d05e6db010703d73d00347c104a18c996514
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/joyent/rust-quickcheck-helpers:/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] b8706ddf3571bda02e5a7f911e724d9234da5f5decda91bfa158ed7febd2ca39
[INFO] running `"docker" "start" "-a" "b8706ddf3571bda02e5a7f911e724d9234da5f5decda91bfa158ed7febd2ca39"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/quickcheck_helpers-0298a1b9f5b6d449
[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]    Doc-tests quickcheck_helpers
[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] running `"docker" "inspect" "b8706ddf3571bda02e5a7f911e724d9234da5f5decda91bfa158ed7febd2ca39"`
[INFO] running `"docker" "rm" "-f" "b8706ddf3571bda02e5a7f911e724d9234da5f5decda91bfa158ed7febd2ca39"`
[INFO] [stdout] b8706ddf3571bda02e5a7f911e724d9234da5f5decda91bfa158ed7febd2ca39