[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 beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d5d1a198a44f852cf8c696f0c1434060f455a34f2450b7abb66a19a568719bf8
[INFO] running `"docker" "start" "-a" "d5d1a198a44f852cf8c696f0c1434060f455a34f2450b7abb66a19a568719bf8"`
[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 1.39s
[INFO] running `"docker" "inspect" "d5d1a198a44f852cf8c696f0c1434060f455a34f2450b7abb66a19a568719bf8"`
[INFO] running `"docker" "rm" "-f" "d5d1a198a44f852cf8c696f0c1434060f455a34f2450b7abb66a19a568719bf8"`
[INFO] [stdout] d5d1a198a44f852cf8c696f0c1434060f455a34f2450b7abb66a19a568719bf8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 12c8ee302c802d20a14051425c76746b8877d8cc2c6102beee3665d10cc8e486
[INFO] running `"docker" "start" "-a" "12c8ee302c802d20a14051425c76746b8877d8cc2c6102beee3665d10cc8e486"`
[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 23.34s
[INFO] running `"docker" "inspect" "12c8ee302c802d20a14051425c76746b8877d8cc2c6102beee3665d10cc8e486"`
[INFO] running `"docker" "rm" "-f" "12c8ee302c802d20a14051425c76746b8877d8cc2c6102beee3665d10cc8e486"`
[INFO] [stdout] 12c8ee302c802d20a14051425c76746b8877d8cc2c6102beee3665d10cc8e486
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 89079a592ea4fb9ce0871363893a6efbaba35bf31174df72a68a7ee3ff80a8de
[INFO] running `"docker" "start" "-a" "89079a592ea4fb9ce0871363893a6efbaba35bf31174df72a68a7ee3ff80a8de"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/filebuffer-59763a595b5c6da1
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test empty_file_has_zero_resident_len ... ok
[INFO] [stdout] test empty_file_deref_is_fine ... ok
[INFO] [stdout] test empty_file_prefetch_is_fine ... ok
[INFO] [stdout] test fbuffer_can_be_moved_into_thread ... ok
[INFO] [stdout] test drop_after_leak ... ok
[INFO] [stdout] test open_empty_file_is_fine ... ok
[INFO] [stdout] test open_file ... ok
[INFO] [stdout] test page_size_at_least_4096 ... ok
[INFO] [stdout] test make_resident ... ok
[INFO] [stdout] test fbuffer_can_be_shared_among_threads ... ok
[INFO] [stdout] test prefetch_is_not_harmful ... ok
[INFO] [stdout] test verify_round_down_to ... ok
[INFO] [stdout] test verify_round_up_to ... 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" "89079a592ea4fb9ce0871363893a6efbaba35bf31174df72a68a7ee3ff80a8de"`
[INFO] running `"docker" "rm" "-f" "89079a592ea4fb9ce0871363893a6efbaba35bf31174df72a68a7ee3ff80a8de"`
[INFO] [stdout] 89079a592ea4fb9ce0871363893a6efbaba35bf31174df72a68a7ee3ff80a8de