[INFO] fetching crate filebuffer 0.4.0...
[INFO] testing filebuffer-0.4.0 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate filebuffer 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate filebuffer 0.4.0 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] [stderr]       Adding gcc v0.3.35 (latest: v0.3.55)
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding time v0.1.35 (latest: v0.3.36)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gcc v0.3.35
[INFO] [stderr]   Downloaded time v0.1.35
[INFO] [stderr]   Downloaded rust-crypto v0.2.36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45ad82e2411ab797326c843e2ab72f621ed1568772a34a78346e252ddaa62940
[INFO] running `Command { std: "docker" "start" "-a" "45ad82e2411ab797326c843e2ab72f621ed1568772a34a78346e252ddaa62940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45ad82e2411ab797326c843e2ab72f621ed1568772a34a78346e252ddaa62940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45ad82e2411ab797326c843e2ab72f621ed1568772a34a78346e252ddaa62940", kill_on_drop: false }`
[INFO] [stdout] 45ad82e2411ab797326c843e2ab72f621ed1568772a34a78346e252ddaa62940
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e39ff6f0485d84ef890141f0b3a6e8904e3982aff0384cb26a7e78c265faa74
[INFO] running `Command { std: "docker" "start" "-a" "6e39ff6f0485d84ef890141f0b3a6e8904e3982aff0384cb26a7e78c265faa74", kill_on_drop: false }`
[INFO] [stderr]    Compiling filebuffer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/unix.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let length = try!(file.metadata()).len();
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:114:20
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let file = try!(open_opts.open(path));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:115:47
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stdout]     |                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "6e39ff6f0485d84ef890141f0b3a6e8904e3982aff0384cb26a7e78c265faa74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e39ff6f0485d84ef890141f0b3a6e8904e3982aff0384cb26a7e78c265faa74", kill_on_drop: false }`
[INFO] [stdout] 6e39ff6f0485d84ef890141f0b3a6e8904e3982aff0384cb26a7e78c265faa74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41b15885e5c749b15e716692685d84a382f480fcf4aafdc2d777df7af0cc5cd6
[INFO] running `Command { std: "docker" "start" "-a" "41b15885e5c749b15e716692685d84a382f480fcf4aafdc2d777df7af0cc5cd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling gcc v0.3.35
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/unix.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let length = try!(file.metadata()).len();
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:114:20
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let file = try!(open_opts.open(path));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:115:47
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stdout]     |                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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 rand v0.3.23
[INFO] [stderr]    Compiling filebuffer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/unix.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let length = try!(file.metadata()).len();
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:114:20
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let file = try!(open_opts.open(path));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:115:47
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stdout]     |                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "41b15885e5c749b15e716692685d84a382f480fcf4aafdc2d777df7af0cc5cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41b15885e5c749b15e716692685d84a382f480fcf4aafdc2d777df7af0cc5cd6", kill_on_drop: false }`
[INFO] [stdout] 41b15885e5c749b15e716692685d84a382f480fcf4aafdc2d777df7af0cc5cd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5034907638bda7fba214d397d2d9e2048357591dfbeb4e675ad354cbc9c4fd87
[INFO] running `Command { std: "docker" "start" "-a" "5034907638bda7fba214d397d2d9e2048357591dfbeb4e675ad354cbc9c4fd87", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `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 macro `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 macro `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] warning: `filebuffer` (lib) generated 3 warnings
[INFO] [stderr] warning: `filebuffer` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/filebuffer-9b88bc5136646114)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stderr] thread 'empty_file_deref_is_fine' panicked at library/core/src/panicking.rs:219:5:
[INFO] [stderr] unsafe precondition(s) violated: slice::from_raw_parts requires the pointer to be aligned and non-null, and the total size of the slice not to exceed `isize::MAX`
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55e66ef33ca5 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]    1:     0x55e66ef33ca5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x55e66ef33ca5 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]    3:     0x55e66ef33ca5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x55e66ef5a4fb - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stderr]    5:     0x55e66ef5a4fb - core::fmt::write::h8bcd80919a02be29
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stderr]    6:     0x55e66ef3158f - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stderr]    7:     0x55e66ef33a7e - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x55e66ef33a7e - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x55e66ef354a9 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stderr]   10:     0x55e66ef351ed - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stderr]   11:     0x55e66ef062aa - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::he5eacdef44c8728f
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stderr]   12:     0x55e66ef062aa - test::test_main::{{closure}}::h0ec9aed229e79095
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:137:21
[INFO] [stderr]   13:     0x55e66ef35aab - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcbd0d80e1ad4e4f9
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stderr]   14:     0x55e66ef35aab - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:799:13
[INFO] [stderr]   15:     0x55e66ef357eb - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:656:13
[INFO] [stderr]   16:     0x55e66ef34169 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]   17:     0x55e66ef35557 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stderr]   18:     0x55e66eec58a0 - core::panicking::panic_nounwind_fmt::runtime::h4b9f1774825d29a1
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:110:18
[INFO] [stderr]   19:     0x55e66eec58a0 - core::panicking::panic_nounwind_fmt::h7f70629ab29f76f1
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:120:5
[INFO] [stderr]   20:     0x55e66eec5932 - core::panicking::panic_nounwind::hde0018e2d22904b7
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:219:5
[INFO] [stderr]   21:     0x55e66eed13b0 - core::slice::raw::from_raw_parts::precondition_check::h6a3e548de4f9f044
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ub_checks.rs:68:21
[INFO] [stderr]   22:     0x55e66eed122f - core::slice::raw::from_raw_parts::h9651656fd7bc61c8
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ub_checks.rs:75:17
[INFO] [stderr]   23:     0x55e66eeca1d5 - <filebuffer::FileBuffer as core::ops::deref::Deref>::deref::h1ed7011f8e1b9136
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:266:18
[INFO] [stderr]   24:     0x55e66eecbc6d - filebuffer::empty_file_deref_is_fine::hb64fdf986ea38521
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:354:16
[INFO] [stderr]   25:     0x55e66eecbb97 - filebuffer::empty_file_deref_is_fine::{{closure}}::h14123a1709d207fe
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:352:30
[INFO] [stderr]   26:     0x55e66eecce86 - core::ops::function::FnOnce::call_once::h73adeda4147c4287
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   27:     0x55e66ef0ac8b - core::ops::function::FnOnce::call_once::h2e43a8f6f3d94b99
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   28:     0x55e66ef0ac8b - test::__rust_begin_short_backtrace::h214c9f2d2d3fee90
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:625:18
[INFO] [stderr]   29:     0x55e66ef0a391 - test::run_test_in_process::{{closure}}::h510b7ba7990692a5
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:60
[INFO] [stderr]   30:     0x55e66ef0a391 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4157186197a93871
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   31:     0x55e66ef0a391 - std::panicking::try::do_call::h1bf2463bccd4b28c
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stderr]   32:     0x55e66ef0a391 - std::panicking::try::hd6d4808c9fab4fa5
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stderr]   33:     0x55e66ef0a391 - std::panic::catch_unwind::hd5641d97d123f9f2
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stderr]   34:     0x55e66ef0a391 - test::run_test_in_process::hc273b71c8b878a4c
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:27
[INFO] [stderr]   35:     0x55e66ef0a391 - test::run_test::{{closure}}::h6838df834eb8467e
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:569:43
[INFO] [stderr]   36:     0x55e66eed2d54 - test::run_test::{{closure}}::h608b98ecff5665fb
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:599:41
[INFO] [stderr]   37:     0x55e66eed2d54 - std::sys_common::backtrace::__rust_begin_short_backtrace::hdc4182b97d1042e9
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stderr]   38:     0x55e66eed7782 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h571773fd21d674c8
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:542:17
[INFO] [stderr]   39:     0x55e66eed7782 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdcd384cf2fa70ba3
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   40:     0x55e66eed7782 - std::panicking::try::do_call::h4f1a44bd81423be1
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stderr]   41:     0x55e66eed7782 - std::panicking::try::h5e02afcb81dcd361
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stderr]   42:     0x55e66eed7782 - std::panic::catch_unwind::h022f75775bfd8c45
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stderr]   43:     0x55e66eed7782 - std::thread::Builder::spawn_unchecked_::{{closure}}::hf5a62e9e4e6df1f8
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:541:30
[INFO] [stderr]   44:     0x55e66eed7782 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6d56360aeb9509a7
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   45:     0x55e66ef39c9b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7a343dc551c06baa
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stderr]   46:     0x55e66ef39c9b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h30b8111cbaa644f3
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stderr]   47:     0x55e66ef39c9b - std::sys::pal::unix::thread::Thread::new::thread_start::h7404e134e61e7a11
[INFO] [stderr]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stderr]   48:     0x7fb9b9efdac3 - <unknown>
[INFO] [stderr]   49:     0x7fb9b9f8ea04 - __clone
[INFO] [stderr]   50:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/filebuffer-9b88bc5136646114` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "5034907638bda7fba214d397d2d9e2048357591dfbeb4e675ad354cbc9c4fd87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5034907638bda7fba214d397d2d9e2048357591dfbeb4e675ad354cbc9c4fd87", kill_on_drop: false }`
[INFO] [stdout] 5034907638bda7fba214d397d2d9e2048357591dfbeb4e675ad354cbc9c4fd87
[INFO] testing filebuffer-0.4.0 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate filebuffer 0.4.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate filebuffer 0.4.0 on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] [stderr]       Adding gcc v0.3.35 (latest: v0.3.55)
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding time v0.1.35 (latest: v0.3.36)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f061a07256a4175e0efc3ddbd92d687684e7bf81c3aad0dc4b8446cc9b2e65b
[INFO] running `Command { std: "docker" "start" "-a" "0f061a07256a4175e0efc3ddbd92d687684e7bf81c3aad0dc4b8446cc9b2e65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f061a07256a4175e0efc3ddbd92d687684e7bf81c3aad0dc4b8446cc9b2e65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f061a07256a4175e0efc3ddbd92d687684e7bf81c3aad0dc4b8446cc9b2e65b", kill_on_drop: false }`
[INFO] [stdout] 0f061a07256a4175e0efc3ddbd92d687684e7bf81c3aad0dc4b8446cc9b2e65b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8497c06276c2125a7b3b3cd64396f0807a29736dff856df3ff966b1f00e47756
[INFO] running `Command { std: "docker" "start" "-a" "8497c06276c2125a7b3b3cd64396f0807a29736dff856df3ff966b1f00e47756", kill_on_drop: false }`
[INFO] [stderr]    Compiling filebuffer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/unix.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let length = try!(file.metadata()).len();
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:114:20
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let file = try!(open_opts.open(path));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:115:47
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stdout]     |                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "8497c06276c2125a7b3b3cd64396f0807a29736dff856df3ff966b1f00e47756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8497c06276c2125a7b3b3cd64396f0807a29736dff856df3ff966b1f00e47756", kill_on_drop: false }`
[INFO] [stdout] 8497c06276c2125a7b3b3cd64396f0807a29736dff856df3ff966b1f00e47756
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 285bc2dccadf5628ac2a52ea5878844361ed586f440d2c8f505f08f1fb92e922
[INFO] running `Command { std: "docker" "start" "-a" "285bc2dccadf5628ac2a52ea5878844361ed586f440d2c8f505f08f1fb92e922", kill_on_drop: false }`
[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 rand v0.4.6
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/unix.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let length = try!(file.metadata()).len();
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:114:20
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let file = try!(open_opts.open(path));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:115:47
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stdout]     |                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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 rand v0.3.23
[INFO] [stderr]    Compiling filebuffer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/unix.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let length = try!(file.metadata()).len();
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:114:20
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let file = try!(open_opts.open(path));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:115:47
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let (buffer, length, platform_data) = try!(map_file(file));
[INFO] [stdout]     |                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "285bc2dccadf5628ac2a52ea5878844361ed586f440d2c8f505f08f1fb92e922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "285bc2dccadf5628ac2a52ea5878844361ed586f440d2c8f505f08f1fb92e922", kill_on_drop: false }`
[INFO] [stdout] 285bc2dccadf5628ac2a52ea5878844361ed586f440d2c8f505f08f1fb92e922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0be614af00e9843d873ea78e89d9d26a5c7d97beabe69db6a8ff0198c0b9638e
[INFO] running `Command { std: "docker" "start" "-a" "0be614af00e9843d873ea78e89d9d26a5c7d97beabe69db6a8ff0198c0b9638e", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `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 macro `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 macro `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] warning: `filebuffer` (lib) generated 3 warnings
[INFO] [stderr] warning: `filebuffer` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/filebuffer-9b88bc5136646114)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stderr] thread 'empty_file_deref_is_fine' panicked at library/core/src/panicking.rs:219:5:
[INFO] [stderr] unsafe precondition(s) violated: slice::from_raw_parts requires the pointer to be aligned and non-null, and the total size of the slice not to exceed `isize::MAX`
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55c6f015ad45 - std::backtrace_rs::backtrace::libunwind::trace::he49dc9a9e3164223
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]    1:     0x55c6f015ad45 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a3e77c68030aa6b
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x55c6f015ad45 - std::sys_common::backtrace::_print_fmt::h9479ad2f99afd5d4
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]    3:     0x55c6f015ad45 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfb01aa1fa3fb1821
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x55c6f018153b - core::fmt::rt::Argument::fmt::h125e56152abbc1c3
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/rt.rs:165:63
[INFO] [stderr]    5:     0x55c6f018153b - core::fmt::write::hb0ab4ff05ccfe741
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/mod.rs:1169:21
[INFO] [stderr]    6:     0x55c6f015857f - std::io::Write::write_fmt::h456b7988df61daf3
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/io/mod.rs:1835:15
[INFO] [stderr]    7:     0x55c6f015ab1e - std::sys_common::backtrace::_print::h79ca548f3a2adf4b
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x55c6f015ab1e - std::sys_common::backtrace::print::h9aebf997b2fea2d3
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x55c6f015c489 - std::panicking::default_hook::{{closure}}::h68a0954af2694526
[INFO] [stderr]   10:     0x55c6f015c258 - std::panicking::default_hook::h5be50cc6849ffb00
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:298:9
[INFO] [stderr]   11:     0x55c6f012d37f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd874405dcbd1d3ed
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2036:9
[INFO] [stderr]   12:     0x55c6f012d37f - test::test_main::{{closure}}::h4f26a9df34a84b94
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:137:21
[INFO] [stderr]   13:     0x55c6f015ca8b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h00e96d9c62aa9a12
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2036:9
[INFO] [stderr]   14:     0x55c6f015ca8b - std::panicking::rust_panic_with_hook::h3c0df6036729334c
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:799:13
[INFO] [stderr]   15:     0x55c6f015c7cb - std::panicking::begin_panic_handler::{{closure}}::ha3a21e93c4cfd807
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:656:13
[INFO] [stderr]   16:     0x55c6f015b209 - std::sys_common::backtrace::__rust_end_short_backtrace::h19508a8f8ae71dc9
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]   17:     0x55c6f015c537 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:652:5
[INFO] [stderr]   18:     0x55c6f00ec880 - core::panicking::panic_nounwind_fmt::runtime::h5a694fc2dbb2d2f2
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:110:18
[INFO] [stderr]   19:     0x55c6f00ec880 - core::panicking::panic_nounwind_fmt::hdd1d11fcfd7ed294
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:120:5
[INFO] [stderr]   20:     0x55c6f00ec912 - core::panicking::panic_nounwind::h8259b34807f64d0c
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:219:5
[INFO] [stderr]   21:     0x55c6f00f59f0 - core::slice::raw::from_raw_parts::precondition_check::hbded7789ad251383
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ub_checks.rs:68:21
[INFO] [stderr]   22:     0x55c6f00f586f - core::slice::raw::from_raw_parts::h5ef6533d34718575
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ub_checks.rs:75:17
[INFO] [stderr]   23:     0x55c6f00f1215 - <filebuffer::FileBuffer as core::ops::deref::Deref>::deref::hfcc40776310a7af8
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:266:18
[INFO] [stderr]   24:     0x55c6f00f2cad - filebuffer::empty_file_deref_is_fine::hb9c565e01fbf94d7
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:354:16
[INFO] [stderr]   25:     0x55c6f00f2bd7 - filebuffer::empty_file_deref_is_fine::{{closure}}::hc9107884d8a57e64
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lib.rs:352:30
[INFO] [stderr]   26:     0x55c6f00f43f6 - core::ops::function::FnOnce::call_once::hb6663b49970d248b
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   27:     0x55c6f0131c9b - core::ops::function::FnOnce::call_once::h18c6bf92212b87a4
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   28:     0x55c6f0131c9b - test::__rust_begin_short_backtrace::hdcf0edcfa9080086
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:625:18
[INFO] [stderr]   29:     0x55c6f0131361 - test::run_test_in_process::{{closure}}::heac2c4eb375d2d10
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:648:60
[INFO] [stderr]   30:     0x55c6f0131361 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0289bafc8a1cc004
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   31:     0x55c6f0131361 - std::panicking::try::do_call::h5e158f1ad8a5f983
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stderr]   32:     0x55c6f0131361 - std::panicking::try::hea3411d60321c4de
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stderr]   33:     0x55c6f0131361 - std::panic::catch_unwind::hafb7bb18bc47bbc7
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stderr]   34:     0x55c6f0131361 - test::run_test_in_process::h74dd138dc7762d99
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:648:27
[INFO] [stderr]   35:     0x55c6f0131361 - test::run_test::{{closure}}::h6b390822e63606cf
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:569:43
[INFO] [stderr]   36:     0x55c6f00f9d34 - test::run_test::{{closure}}::h6e11dba8131d354b
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:599:41
[INFO] [stderr]   37:     0x55c6f00f9d34 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha71b3541b59bdbbb
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stderr]   38:     0x55c6f00fe802 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hef92127c5ef9e53c
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/thread/mod.rs:542:17
[INFO] [stderr]   39:     0x55c6f00fe802 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h859c109f9d11c92b
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   40:     0x55c6f00fe802 - std::panicking::try::do_call::hbf534c458cd858f0
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stderr]   41:     0x55c6f00fe802 - std::panicking::try::h65c18365a7b9ad90
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stderr]   42:     0x55c6f00fe802 - std::panic::catch_unwind::h21b25d4c69478c39
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stderr]   43:     0x55c6f00fe802 - std::thread::Builder::spawn_unchecked_::{{closure}}::h23335f620275a9bf
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/thread/mod.rs:541:30
[INFO] [stderr]   44:     0x55c6f00fe802 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb491dc55513e9b7c
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   45:     0x55c6f0160c6b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h41b39260afcffdc9
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2022:9
[INFO] [stderr]   46:     0x55c6f0160c6b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6694c8dc6dd010c4
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2022:9
[INFO] [stderr]   47:     0x55c6f0160c6b - std::sys::pal::unix::thread::Thread::new::thread_start::hf16038e1c8e19c99
[INFO] [stderr]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stderr]   48:     0x7f0d2c256ac3 - <unknown>
[INFO] [stderr]   49:     0x7f0d2c2e7a04 - __clone
[INFO] [stderr]   50:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/filebuffer-9b88bc5136646114` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "0be614af00e9843d873ea78e89d9d26a5c7d97beabe69db6a8ff0198c0b9638e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be614af00e9843d873ea78e89d9d26a5c7d97beabe69db6a8ff0198c0b9638e", kill_on_drop: false }`
[INFO] [stdout] 0be614af00e9843d873ea78e89d9d26a5c7d97beabe69db6a8ff0198c0b9638e
