[INFO] crate sparse-bitfield 0.8.1 is already in cache
[INFO] extracting crate sparse-bitfield 0.8.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/sparse-bitfield/0.8.1
[INFO] extracting crate sparse-bitfield 0.8.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sparse-bitfield/0.8.1
[INFO] validating manifest of sparse-bitfield-0.8.1 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 sparse-bitfield-0.8.1 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 sparse-bitfield-0.8.1
[INFO] finished frobbing sparse-bitfield-0.8.1
[INFO] frobbed toml for sparse-bitfield-0.8.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/sparse-bitfield/0.8.1/Cargo.toml
[INFO] started frobbing sparse-bitfield-0.8.1
[INFO] finished frobbing sparse-bitfield-0.8.1
[INFO] frobbed toml for sparse-bitfield-0.8.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sparse-bitfield/0.8.1/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sparse-bitfield-0.8.1 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sparse-bitfield/0.8.1:/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] d261bfccaf141971d6bbb1865e1b0e70db436eac57af253d95ae3817b4679b0d
[INFO] running `"docker" "start" "-a" "d261bfccaf141971d6bbb1865e1b0e70db436eac57af253d95ae3817b4679b0d"`
[INFO] [stderr]    Compiling memory-pager v0.8.0
[INFO] [stderr]    Compiling sparse-bitfield v0.8.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `"docker" "inspect" "d261bfccaf141971d6bbb1865e1b0e70db436eac57af253d95ae3817b4679b0d"`
[INFO] running `"docker" "rm" "-f" "d261bfccaf141971d6bbb1865e1b0e70db436eac57af253d95ae3817b4679b0d"`
[INFO] [stdout] d261bfccaf141971d6bbb1865e1b0e70db436eac57af253d95ae3817b4679b0d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sparse-bitfield/0.8.1:/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] 4bc338f3d1bec133051941c45e2852d87e54e9aa65830f152139a8ae836b232f
[INFO] running `"docker" "start" "-a" "4bc338f3d1bec133051941c45e2852d87e54e9aa65830f152139a8ae836b232f"`
[INFO] [stderr]    Compiling proptest v0.6.0
[INFO] [stderr]    Compiling sparse-bitfield v0.8.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.14s
[INFO] running `"docker" "inspect" "4bc338f3d1bec133051941c45e2852d87e54e9aa65830f152139a8ae836b232f"`
[INFO] running `"docker" "rm" "-f" "4bc338f3d1bec133051941c45e2852d87e54e9aa65830f152139a8ae836b232f"`
[INFO] [stdout] 4bc338f3d1bec133051941c45e2852d87e54e9aa65830f152139a8ae836b232f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sparse-bitfield/0.8.1:/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] 522589ac6800dd7480cf93fb7e955ce09cc59f74e6f5ffc22db577a0c85ceee9
[INFO] running `"docker" "start" "-a" "522589ac6800dd7480cf93fb7e955ce09cc59f74e6f5ffc22db577a0c85ceee9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sparse_bitfield-2cc69f42a551da58
[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 1 test
[INFO] [stderr]      Running /opt/crater/target/debug/deps/model-c0d59d46b93dd55a
[INFO] [stdout] test doesnt_crash ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/regression-89c37eb814c5e75b
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test regression_01 ... ok
[INFO] [stdout] test regression_02 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test-7100cf09f9d3d1e4
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test from_file ... ok
[INFO] [stdout] test returns_if_flipped ... ok
[INFO] [stdout] test exposes_changed_unchanged_methods ... ok
[INFO] [stdout] test can_iterate ... ok
[INFO] [stdout] test can_get_bits ... ok
[INFO] [stdout] test can_create_bitfield ... ok
[INFO] [stdout] test basic_set_get ... ok
[INFO] [stdout] test can_set_bits ... 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 sparse-bitfield
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - Bitfield::byte_len (line 157) ... ok
[INFO] [stdout] test src/lib.rs - Bitfield::page_len (line 177) ... ok
[INFO] [stdout] test src/lib.rs - Bitfield::is_empty (line 199) ... ok
[INFO] [stdout] test src/lib.rs - Bitfield::len (line 137) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "522589ac6800dd7480cf93fb7e955ce09cc59f74e6f5ffc22db577a0c85ceee9"`
[INFO] running `"docker" "rm" "-f" "522589ac6800dd7480cf93fb7e955ce09cc59f74e6f5ffc22db577a0c85ceee9"`
[INFO] [stdout] 522589ac6800dd7480cf93fb7e955ce09cc59f74e6f5ffc22db577a0c85ceee9