[INFO] crate unshare 0.5.1 is already in cache
[INFO] testing unshare-0.5.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate unshare 0.5.1 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate unshare 0.5.1 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 unshare 0.5.1
[INFO] finished tweaking crates.io crate unshare 0.5.1
[INFO] tweaked toml for crates.io crate unshare 0.5.1 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] 412a457134608908dbd6e9d25fafd4f0871f022a9976852cf9824e010f07e1d5
[INFO] running `"docker" "start" "-a" "412a457134608908dbd6e9d25fafd4f0871f022a9976852cf9824e010f07e1d5"`
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling unshare v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/error.rs:192:11
[INFO] [stderr]     |
[INFO] [stderr] 192 |     match try!(r.map_err(|e| e.into_error(def_code))) {
[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/pipe.rs:35:24
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let (rd, wr) = try!(result(CreatePipe, pipe2(OFlag::O_CLOEXEC)));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux.rs:157:18
[INFO] [stderr]     |
[INFO] [stderr] 157 |         let fd = try!(dup_file_cloexec(file));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:103:32
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 let (rd, wr) = try!(Pipe::new()).split();
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:110:32
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 let (rd, wr) = try!(Pipe::new()).split();
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:118:26
[INFO] [stderr]     |
[INFO] [stderr] 118 |                 let fd = try!(result(Err::CreatePipe,
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:127:26
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 let fd = try!(result(Err::CreatePipe,
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:144:18
[INFO] [stderr]     |
[INFO] [stderr] 144 |             fd = try!(result(Err::CreatePipe,
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         try!(self.spawn())
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:173:35
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let (wakeup_rd, wakeup) = try!(Pipe::new()).split();
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:174:37
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let (errpipe, errpipe_wr) = try!(Pipe::new()).split();
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:197:43
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let (int_fds, ext_fds, _guards) = try!(prepare_descriptors(&self.fds));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:242:19
[INFO] [stderr]     |
[INFO] [stderr] 242 |         let pid = try!(result(Err::Fork, clone(Box::new(|| -> isize {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:306:13
[INFO] [stderr]     |
[INFO] [stderr] 306 |             try!(result(Err::SetPGid, setpgid(pid, pid)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:319:17
[INFO] [stderr]     |
[INFO] [stderr] 319 |                 try!(cmd_result(Err::SetIdMap, cmd.status()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:327:17
[INFO] [stderr]     |
[INFO] [stderr] 327 |                 try!(cmd_result(Err::SetIdMap, cmd.status()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:334:17
[INFO] [stderr]     |
[INFO] [stderr] 334 |                 try!(result(Err::SetIdMap,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:342:17
[INFO] [stderr]     |
[INFO] [stderr] 342 |                 try!(result(Err::SetIdMap,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         try!(result(Err::PipeError, wakeup.write_all(b"x")));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:353:15
[INFO] [stderr]     |
[INFO] [stderr] 353 |         match try!(result(Err::PipeError, errpipe.read(&mut err))) {
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/wait.rs:32:22
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let status = try!(self._wait());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:94:24
[INFO] [stderr]    |
[INFO] [stderr] 94 |     BeforeUnfreeze(Box<::std::error::Error + Send + Sync + 'static>),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ::std::error::Error + Send + Sync + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/run.rs:54:37
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub before_exec: &'a Option<Box<Fn() -> Result<(), io::Error>>>,
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Result<(), io::Error>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:75:21
[INFO] [stderr]    |
[INFO] [stderr] 75 | type BoxError = Box<::std::error::Error + Send + Sync + 'static>;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ::std::error::Error + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:90:33
[INFO] [stderr]    |
[INFO] [stderr] 90 |     before_unfreeze: Option<Box<FnMut(u32) -> Result<(), BoxError>>>,
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u32) -> Result<(), BoxError>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:91:29
[INFO] [stderr]    |
[INFO] [stderr] 91 |     before_exec: Option<Box<Fn() -> Result<(), io::Error>>>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Result<(), io::Error>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/child.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |         let mut sigmask: sigset_t = mem::uninitialized();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `"docker" "inspect" "412a457134608908dbd6e9d25fafd4f0871f022a9976852cf9824e010f07e1d5"`
[INFO] running `"docker" "rm" "-f" "412a457134608908dbd6e9d25fafd4f0871f022a9976852cf9824e010f07e1d5"`
[INFO] [stdout] 412a457134608908dbd6e9d25fafd4f0871f022a9976852cf9824e010f07e1d5
[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] 65ea54eb99a7fe09ae811426d0bd98430ff9fdba320de6fb8b5f07a17aa7ddb7
[INFO] running `"docker" "start" "-a" "65ea54eb99a7fe09ae811426d0bd98430ff9fdba320de6fb8b5f07a17aa7ddb7"`
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling unshare v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/error.rs:192:11
[INFO] [stderr]     |
[INFO] [stderr] 192 |     match try!(r.map_err(|e| e.into_error(def_code))) {
[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/pipe.rs:35:24
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let (rd, wr) = try!(result(CreatePipe, pipe2(OFlag::O_CLOEXEC)));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux.rs:157:18
[INFO] [stderr]     |
[INFO] [stderr] 157 |         let fd = try!(dup_file_cloexec(file));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:103:32
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 let (rd, wr) = try!(Pipe::new()).split();
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:110:32
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 let (rd, wr) = try!(Pipe::new()).split();
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:118:26
[INFO] [stderr]     |
[INFO] [stderr] 118 |                 let fd = try!(result(Err::CreatePipe,
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:127:26
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 let fd = try!(result(Err::CreatePipe,
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:144:18
[INFO] [stderr]     |
[INFO] [stderr] 144 |             fd = try!(result(Err::CreatePipe,
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         try!(self.spawn())
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:173:35
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let (wakeup_rd, wakeup) = try!(Pipe::new()).split();
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:174:37
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let (errpipe, errpipe_wr) = try!(Pipe::new()).split();
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:197:43
[INFO] [stderr]     |
[INFO] [stderr] 197 |         let (int_fds, ext_fds, _guards) = try!(prepare_descriptors(&self.fds));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:242:19
[INFO] [stderr]     |
[INFO] [stderr] 242 |         let pid = try!(result(Err::Fork, clone(Box::new(|| -> isize {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:306:13
[INFO] [stderr]     |
[INFO] [stderr] 306 |             try!(result(Err::SetPGid, setpgid(pid, pid)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:319:17
[INFO] [stderr]     |
[INFO] [stderr] 319 |                 try!(cmd_result(Err::SetIdMap, cmd.status()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:327:17
[INFO] [stderr]     |
[INFO] [stderr] 327 |                 try!(cmd_result(Err::SetIdMap, cmd.status()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:334:17
[INFO] [stderr]     |
[INFO] [stderr] 334 |                 try!(result(Err::SetIdMap,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:342:17
[INFO] [stderr]     |
[INFO] [stderr] 342 |                 try!(result(Err::SetIdMap,
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         try!(result(Err::PipeError, wakeup.write_all(b"x")));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/run.rs:353:15
[INFO] [stderr]     |
[INFO] [stderr] 353 |         match try!(result(Err::PipeError, errpipe.read(&mut err))) {
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/wait.rs:32:22
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let status = try!(self._wait());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:94:24
[INFO] [stderr]    |
[INFO] [stderr] 94 |     BeforeUnfreeze(Box<::std::error::Error + Send + Sync + 'static>),
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ::std::error::Error + Send + Sync + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/run.rs:54:37
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub before_exec: &'a Option<Box<Fn() -> Result<(), io::Error>>>,
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Result<(), io::Error>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:75:21
[INFO] [stderr]    |
[INFO] [stderr] 75 | type BoxError = Box<::std::error::Error + Send + Sync + 'static>;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ::std::error::Error + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:90:33
[INFO] [stderr]    |
[INFO] [stderr] 90 |     before_unfreeze: Option<Box<FnMut(u32) -> Result<(), BoxError>>>,
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u32) -> Result<(), BoxError>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:91:29
[INFO] [stderr]    |
[INFO] [stderr] 91 |     before_exec: Option<Box<Fn() -> Result<(), io::Error>>>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Result<(), io::Error>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/child.rs:210:37
[INFO] [stderr]     |
[INFO] [stderr] 210 |         let mut sigmask: sigset_t = mem::uninitialized();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `"docker" "inspect" "65ea54eb99a7fe09ae811426d0bd98430ff9fdba320de6fb8b5f07a17aa7ddb7"`
[INFO] running `"docker" "rm" "-f" "65ea54eb99a7fe09ae811426d0bd98430ff9fdba320de6fb8b5f07a17aa7ddb7"`
[INFO] [stdout] 65ea54eb99a7fe09ae811426d0bd98430ff9fdba320de6fb8b5f07a17aa7ddb7
[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] e2aad00baf963f31b6efa5cf6c745230ac60ca85c7bb9d3ba2931d014ed9216e
[INFO] running `"docker" "start" "-a" "e2aad00baf963f31b6efa5cf6c745230ac60ca85c7bb9d3ba2931d014ed9216e"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unshare-0fa7227d87e04545
[INFO] [stdout] test debug::test::test_no_env ... ok
[INFO] [stdout] test debug::test::test_pretty ... ok
[INFO] [stdout] test debug::test::test_comprehensive ... ok
[INFO] [stdout] test child::test::test_format ... ok
[INFO] [stdout] test debug::test::test_debug ... ok
[INFO] [stdout] test child::test::test_random ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unshare
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/linux.rs - linux::Command::env_var_with_pid (line 258) ... ignored
[INFO] [stdout] test src/zombies.rs - zombies::child_events (line 142) ... ignored
[INFO] [stdout] test src/zombies.rs - zombies::reap_zombies (line 58) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e2aad00baf963f31b6efa5cf6c745230ac60ca85c7bb9d3ba2931d014ed9216e"`
[INFO] running `"docker" "rm" "-f" "e2aad00baf963f31b6efa5cf6c745230ac60ca85c7bb9d3ba2931d014ed9216e"`
[INFO] [stdout] e2aad00baf963f31b6efa5cf6c745230ac60ca85c7bb9d3ba2931d014ed9216e