[INFO] updating cached repository https://github.com/ruuda/filebuffer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 318408f8b65a3627865dcc5d3e07cc7d63ff65a9
[INFO] testing ruuda/filebuffer against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruuda%2Ffilebuffer" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruuda/filebuffer 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 git repo https://github.com/ruuda/filebuffer
[INFO] finished tweaking git repo https://github.com/ruuda/filebuffer
[INFO] tweaked toml for git repo https://github.com/ruuda/filebuffer written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ruuda/filebuffer already has a lockfile, it will not be regenerated
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 23075f7cd9b994f6f1de3759eb92b314a8cacef85b7b8b76807953016f5d4699
[INFO] running `"docker" "start" "-a" "23075f7cd9b994f6f1de3759eb92b314a8cacef85b7b8b76807953016f5d4699"`
[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:24:18
[INFO] [stderr]    |
[INFO] [stderr] 24 |     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:108:20
[INFO] [stderr]     |
[INFO] [stderr] 108 |         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:109:47
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "23075f7cd9b994f6f1de3759eb92b314a8cacef85b7b8b76807953016f5d4699"`
[INFO] running `"docker" "rm" "-f" "23075f7cd9b994f6f1de3759eb92b314a8cacef85b7b8b76807953016f5d4699"`
[INFO] [stdout] 23075f7cd9b994f6f1de3759eb92b314a8cacef85b7b8b76807953016f5d4699
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 5c1cfba038d72b1069a79be897451d7543ab22d9da37a5cd9bd8e634a58b0dee
[INFO] running `"docker" "start" "-a" "5c1cfba038d72b1069a79be897451d7543ab22d9da37a5cd9bd8e634a58b0dee"`
[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:24:18
[INFO] [stderr]    |
[INFO] [stderr] 24 |     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:108:20
[INFO] [stderr]     |
[INFO] [stderr] 108 |         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:109:47
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.18s
[INFO] running `"docker" "inspect" "5c1cfba038d72b1069a79be897451d7543ab22d9da37a5cd9bd8e634a58b0dee"`
[INFO] running `"docker" "rm" "-f" "5c1cfba038d72b1069a79be897451d7543ab22d9da37a5cd9bd8e634a58b0dee"`
[INFO] [stdout] 5c1cfba038d72b1069a79be897451d7543ab22d9da37a5cd9bd8e634a58b0dee
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 89a14c1875aef55b01bd9e323d6e45148bb40b56a244e06331571753a932f81e
[INFO] running `"docker" "start" "-a" "89a14c1875aef55b01bd9e323d6e45148bb40b56a244e06331571753a932f81e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/filebuffer-155641ba951263a9
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test empty_file_deref_is_fine ... ok
[INFO] [stdout] test drop_after_leak ... ok
[INFO] [stdout] test empty_file_has_zero_resident_len ... ok
[INFO] [stdout] test empty_file_prefetch_is_fine ... ok
[INFO] [stdout] test make_resident ... ok
[INFO] [stdout] test verify_round_down_to ... ok
[INFO] [stdout] test verify_round_up_to ... ok
[INFO] [stdout] test fbuffer_can_be_shared_among_threads ... ok
[INFO] [stdout] test fbuffer_can_be_moved_into_thread ... ok
[INFO] [stdout] test open_empty_file_is_fine ... ok
[INFO] [stdout] test prefetch_is_not_harmful ... ok
[INFO] [stdout] test open_file ... ok
[INFO] [stdout] test page_size_at_least_4096 ... 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" "89a14c1875aef55b01bd9e323d6e45148bb40b56a244e06331571753a932f81e"`
[INFO] running `"docker" "rm" "-f" "89a14c1875aef55b01bd9e323d6e45148bb40b56a244e06331571753a932f81e"`
[INFO] [stdout] 89a14c1875aef55b01bd9e323d6e45148bb40b56a244e06331571753a932f81e