[INFO] crate filebuffer 0.4.0 is already in cache
[INFO] testing filebuffer-0.4.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate filebuffer 0.4.0 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate filebuffer 0.4.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate filebuffer 0.4.0
[INFO] finished tweaking crates.io crate filebuffer 0.4.0
[INFO] tweaked toml for crates.io crate filebuffer 0.4.0 written to work/builds/worker-7/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 790df8cf786cc1e4660c7d4cb3709b4a4f169fc284b7b0ed0fb3a34dc459e8c1
[INFO] running `"docker" "start" "-a" "790df8cf786cc1e4660c7d4cb3709b4a4f169fc284b7b0ed0fb3a34dc459e8c1"`
[INFO] [stderr]    Compiling filebuffer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/unix.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let length = try!(file.metadata()).len();
[INFO] [stderr]    |                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:114:20
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let file = try!(open_opts.open(path));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:115:47
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `"docker" "inspect" "790df8cf786cc1e4660c7d4cb3709b4a4f169fc284b7b0ed0fb3a34dc459e8c1"`
[INFO] running `"docker" "rm" "-f" "790df8cf786cc1e4660c7d4cb3709b4a4f169fc284b7b0ed0fb3a34dc459e8c1"`
[INFO] [stdout] 790df8cf786cc1e4660c7d4cb3709b4a4f169fc284b7b0ed0fb3a34dc459e8c1
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6c8eb77a634c2af6d77f43442601118926d57a853913a4ac78894c1d571f300f
[INFO] running `"docker" "start" "-a" "6c8eb77a634c2af6d77f43442601118926d57a853913a4ac78894c1d571f300f"`
[INFO] [stderr]    Compiling gcc v0.3.35
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling filebuffer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/unix.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let length = try!(file.metadata()).len();
[INFO] [stderr]    |                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:114:20
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let file = try!(open_opts.open(path));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:115:47
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.93s
[INFO] running `"docker" "inspect" "6c8eb77a634c2af6d77f43442601118926d57a853913a4ac78894c1d571f300f"`
[INFO] running `"docker" "rm" "-f" "6c8eb77a634c2af6d77f43442601118926d57a853913a4ac78894c1d571f300f"`
[INFO] [stdout] 6c8eb77a634c2af6d77f43442601118926d57a853913a4ac78894c1d571f300f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 045250a8c161e6a95b42307a5ab1907826d0f4926d2a45a7153a07ef43bd705b
[INFO] running `"docker" "start" "-a" "045250a8c161e6a95b42307a5ab1907826d0f4926d2a45a7153a07ef43bd705b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/filebuffer-1c8d114bb74d6c9d
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test empty_file_deref_is_fine ... ok
[INFO] [stdout] test empty_file_prefetch_is_fine ... ok
[INFO] [stdout] test empty_file_has_zero_resident_len ... ok
[INFO] [stdout] test fbuffer_can_be_moved_into_thread ... ok
[INFO] [stdout] test drop_after_leak ... ok
[INFO] [stdout] test fbuffer_can_be_shared_among_threads ... ok
[INFO] [stdout] test open_empty_file_is_fine ... ok
[INFO] [stdout] test page_size_at_least_4096 ... ok
[INFO] [stdout] test open_file ... ok
[INFO] [stdout] test verify_round_down_to ... ok
[INFO] [stdout] test verify_round_up_to ... ok
[INFO] [stdout] test make_resident ... 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" "045250a8c161e6a95b42307a5ab1907826d0f4926d2a45a7153a07ef43bd705b"`
[INFO] running `"docker" "rm" "-f" "045250a8c161e6a95b42307a5ab1907826d0f4926d2a45a7153a07ef43bd705b"`
[INFO] [stdout] 045250a8c161e6a95b42307a5ab1907826d0f4926d2a45a7153a07ef43bd705b