[INFO] updating cached repository ruuda/filebuffer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ruuda/filebuffer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ruuda/filebuffer" "work/ex/beta-1.38-1/sources/1.37.0/gh/ruuda/filebuffer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ruuda/filebuffer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ruuda/filebuffer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ruuda/filebuffer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ruuda/filebuffer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 318408f8b65a3627865dcc5d3e07cc7d63ff65a9
[INFO] sha for GitHub repo ruuda/filebuffer: 318408f8b65a3627865dcc5d3e07cc7d63ff65a9
[INFO] validating manifest of ruuda/filebuffer 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 ruuda/filebuffer 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 ruuda/filebuffer
[INFO] finished frobbing ruuda/filebuffer
[INFO] frobbed toml for ruuda/filebuffer written to work/ex/beta-1.38-1/sources/1.37.0/gh/ruuda/filebuffer/Cargo.toml
[INFO] started frobbing ruuda/filebuffer
[INFO] finished frobbing ruuda/filebuffer
[INFO] frobbed toml for ruuda/filebuffer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ruuda/filebuffer/Cargo.toml
[INFO] crate ruuda/filebuffer already has a lockfile, it will not be regenerated
[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 ruuda/filebuffer 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ruuda/filebuffer:/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] 477e3a7b4873a923203f0d282665c324e7685b58e8db3a2595976b2a4b98ff31
[INFO] running `"docker" "start" "-a" "477e3a7b4873a923203f0d282665c324e7685b58e8db3a2595976b2a4b98ff31"`
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling filebuffer v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `"docker" "inspect" "477e3a7b4873a923203f0d282665c324e7685b58e8db3a2595976b2a4b98ff31"`
[INFO] running `"docker" "rm" "-f" "477e3a7b4873a923203f0d282665c324e7685b58e8db3a2595976b2a4b98ff31"`
[INFO] [stdout] 477e3a7b4873a923203f0d282665c324e7685b58e8db3a2595976b2a4b98ff31
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ruuda/filebuffer:/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] cd14ce0cb60ac58e69b1d8ee4879a909efc6031d2a7d2d6d312acb0576ff0074
[INFO] running `"docker" "start" "-a" "cd14ce0cb60ac58e69b1d8ee4879a909efc6031d2a7d2d6d312acb0576ff0074"`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling gcc v0.3.35
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling filebuffer v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.54s
[INFO] running `"docker" "inspect" "cd14ce0cb60ac58e69b1d8ee4879a909efc6031d2a7d2d6d312acb0576ff0074"`
[INFO] running `"docker" "rm" "-f" "cd14ce0cb60ac58e69b1d8ee4879a909efc6031d2a7d2d6d312acb0576ff0074"`
[INFO] [stdout] cd14ce0cb60ac58e69b1d8ee4879a909efc6031d2a7d2d6d312acb0576ff0074
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ruuda/filebuffer:/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] 4d3debe4c5f9bd20a10dc0d46602372783e5bd01073e884d139b5d8a477eeb86
[INFO] running `"docker" "start" "-a" "4d3debe4c5f9bd20a10dc0d46602372783e5bd01073e884d139b5d8a477eeb86"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/filebuffer-7f859c103d516620
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test make_resident ... ok
[INFO] [stdout] test open_empty_file_is_fine ... ok
[INFO] [stdout] test fbuffer_can_be_shared_among_threads ... ok
[INFO] [stdout] test fbuffer_can_be_moved_into_thread ... ok
[INFO] [stdout] test empty_file_prefetch_is_fine ... ok
[INFO] [stdout] test empty_file_has_zero_resident_len ... ok
[INFO] [stdout] test open_file ... ok
[INFO] [stdout] test page_size_at_least_4096 ... ok
[INFO] [stdout] test empty_file_deref_is_fine ... ok
[INFO] [stdout] test verify_round_down_to ... ok
[INFO] [stdout] test verify_round_up_to ... ok
[INFO] [stdout] test drop_after_leak ... ok
[INFO] [stdout] test prefetch_is_not_harmful ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests filebuffer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 15) ... 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" "4d3debe4c5f9bd20a10dc0d46602372783e5bd01073e884d139b5d8a477eeb86"`
[INFO] running `"docker" "rm" "-f" "4d3debe4c5f9bd20a10dc0d46602372783e5bd01073e884d139b5d8a477eeb86"`
[INFO] [stdout] 4d3debe4c5f9bd20a10dc0d46602372783e5bd01073e884d139b5d8a477eeb86