[INFO] fetching crate vt 0.2.1...
[INFO] testing vt-0.2.1 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate vt 0.2.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate vt 0.2.1
[INFO] finished tweaking crates.io crate vt 0.2.1
[INFO] tweaked toml for crates.io crate vt 0.2.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vt 0.2.1 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vt 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b0e15a46a41cb8ae46076d1ff95fb8228c07687007e9c1a83069ca0856864ba
[INFO] running `Command { std: "docker" "start" "-a" "1b0e15a46a41cb8ae46076d1ff95fb8228c07687007e9c1a83069ca0856864ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b0e15a46a41cb8ae46076d1ff95fb8228c07687007e9c1a83069ca0856864ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b0e15a46a41cb8ae46076d1ff95fb8228c07687007e9c1a83069ca0856864ba", kill_on_drop: false }`
[INFO] [stdout] 1b0e15a46a41cb8ae46076d1ff95fb8228c07687007e9c1a83069ca0856864ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e2e0c99be41c38cbd74d8cb78cdeac09d54f41ada30686f4f0306972aa434a8
[INFO] running `Command { std: "docker" "start" "-a" "3e2e0c99be41c38cbd74d8cb78cdeac09d54f41ada30686f4f0306972aa434a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling vt v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/ffi.rs:29:48
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int);
[INFO] [stdout]    | ------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/ffi.rs:29:48
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat);
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `i32` does not permit being left uninitialized
[INFO] [stdout]   --> src/ffi.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    this code causes undefined behavior when executed
[INFO] [stdout]    |                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int);
[INFO] [stdout]    | ------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `VtStat` does not permit being left uninitialized
[INFO] [stdout]   --> src/ffi.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    this code causes undefined behavior when executed
[INFO] [stdout]    |                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat);
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/ffi.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub v_active: c_ushort,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/console.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new_vt(&self) -> io::Result<Vt> {
[INFO] [stdout]    |                   ^^^^^                ^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new_vt(&self) -> io::Result<Vt<'_>> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/console.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new_vt_with_minimum_number(&self, min: i32) -> io::Result<Vt> {
[INFO] [stdout]    |                                       ^^^^^                          ^^ the same lifetime is hidden here
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new_vt_with_minimum_number(&self, min: i32) -> io::Result<Vt<'_>> {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/console.rs:109:35
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn open_vt<N: AsVtNumber>(&self, vt_number: N) -> io::Result<Vt> {
[INFO] [stdout]     |                                   ^^^^^ the lifetime is elided here  ^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn open_vt<N: AsVtNumber>(&self, vt_number: N) -> io::Result<Vt<'_>> {
[INFO] [stdout]     |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.45s
[INFO] running `Command { std: "docker" "inspect" "3e2e0c99be41c38cbd74d8cb78cdeac09d54f41ada30686f4f0306972aa434a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e2e0c99be41c38cbd74d8cb78cdeac09d54f41ada30686f4f0306972aa434a8", kill_on_drop: false }`
[INFO] [stdout] 3e2e0c99be41c38cbd74d8cb78cdeac09d54f41ada30686f4f0306972aa434a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79c8b0e47d5cfbbf3663546d4777727fef2a5b558d1dc9b9f9b353aad998164b
[INFO] running `Command { std: "docker" "start" "-a" "79c8b0e47d5cfbbf3663546d4777727fef2a5b558d1dc9b9f9b353aad998164b", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/ffi.rs:29:48
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int);
[INFO] [stdout]    | ------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/ffi.rs:29:48
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat);
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `i32` does not permit being left uninitialized
[INFO] [stdout]   --> src/ffi.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    this code causes undefined behavior when executed
[INFO] [stdout]    |                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int);
[INFO] [stdout]    | ------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling vt v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the type `VtStat` does not permit being left uninitialized
[INFO] [stdout]   --> src/ffi.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    this code causes undefined behavior when executed
[INFO] [stdout]    |                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat);
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/ffi.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub v_active: c_ushort,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/console.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new_vt(&self) -> io::Result<Vt> {
[INFO] [stdout]    |                   ^^^^^                ^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new_vt(&self) -> io::Result<Vt<'_>> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/console.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new_vt_with_minimum_number(&self, min: i32) -> io::Result<Vt> {
[INFO] [stdout]    |                                       ^^^^^                          ^^ the same lifetime is hidden here
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new_vt_with_minimum_number(&self, min: i32) -> io::Result<Vt<'_>> {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/console.rs:109:35
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn open_vt<N: AsVtNumber>(&self, vt_number: N) -> io::Result<Vt> {
[INFO] [stdout]     |                                   ^^^^^ the lifetime is elided here  ^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn open_vt<N: AsVtNumber>(&self, vt_number: N) -> io::Result<Vt<'_>> {
[INFO] [stdout]     |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/ffi.rs:29:48
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int);
[INFO] [stdout]    | ------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/ffi.rs:29:48
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat);
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `i32` does not permit being left uninitialized
[INFO] [stdout]   --> src/ffi.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    this code causes undefined behavior when executed
[INFO] [stdout]    |                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int);
[INFO] [stdout]    | ------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `VtStat` does not permit being left uninitialized
[INFO] [stdout]   --> src/ffi.rs:29:36
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    this code causes undefined behavior when executed
[INFO] [stdout]    |                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat);
[INFO] [stdout]    | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout] note: integers must be initialized (in this struct field)
[INFO] [stdout]   --> src/ffi.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub v_active: c_ushort,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/console.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new_vt(&self) -> io::Result<Vt> {
[INFO] [stdout]    |                   ^^^^^                ^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new_vt(&self) -> io::Result<Vt<'_>> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/console.rs:47:39
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new_vt_with_minimum_number(&self, min: i32) -> io::Result<Vt> {
[INFO] [stdout]    |                                       ^^^^^                          ^^ the same lifetime is hidden here
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new_vt_with_minimum_number(&self, min: i32) -> io::Result<Vt<'_>> {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/console.rs:109:35
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn open_vt<N: AsVtNumber>(&self, vt_number: N) -> io::Result<Vt> {
[INFO] [stdout]     |                                   ^^^^^ the lifetime is elided here  ^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn open_vt<N: AsVtNumber>(&self, vt_number: N) -> io::Result<Vt<'_>> {
[INFO] [stdout]     |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "79c8b0e47d5cfbbf3663546d4777727fef2a5b558d1dc9b9f9b353aad998164b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79c8b0e47d5cfbbf3663546d4777727fef2a5b558d1dc9b9f9b353aad998164b", kill_on_drop: false }`
[INFO] [stdout] 79c8b0e47d5cfbbf3663546d4777727fef2a5b558d1dc9b9f9b353aad998164b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3598ce35a5365a6b455097672f0fc599d5f093035ac5ef607891b91d1f1bf399
[INFO] running `Command { std: "docker" "start" "-a" "3598ce35a5365a6b455097672f0fc599d5f093035ac5ef607891b91d1f1bf399", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/ffi.rs:29:48
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int);
[INFO] [stderr]    | ------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/ffi.rs:29:48
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat);
[INFO] [stderr]    | ---------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `i32` does not permit being left uninitialized
[INFO] [stderr]   --> src/ffi.rs:29:36
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                                    |
[INFO] [stderr]    |                                    this code causes undefined behavior when executed
[INFO] [stderr]    |                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int);
[INFO] [stderr]    | ------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: integers must be initialized
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `VtStat` does not permit being left uninitialized
[INFO] [stderr]   --> src/ffi.rs:29:36
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 let mut data: $t = ::std::mem::uninitialized();
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                                    |
[INFO] [stderr]    |                                    this code causes undefined behavior when executed
[INFO] [stderr]    |                                    help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat);
[INFO] [stderr]    | ---------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr] note: integers must be initialized (in this struct field)
[INFO] [stderr]   --> src/ffi.rs:19:2
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub v_active: c_ushort,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/console.rs:35:19
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn new_vt(&self) -> io::Result<Vt> {
[INFO] [stderr]    |                   ^^^^^                ^^ the same lifetime is hidden here
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn new_vt(&self) -> io::Result<Vt<'_>> {
[INFO] [stderr]    |                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/console.rs:47:39
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn new_vt_with_minimum_number(&self, min: i32) -> io::Result<Vt> {
[INFO] [stderr]    |                                       ^^^^^                          ^^ the same lifetime is hidden here
[INFO] [stderr]    |                                       |
[INFO] [stderr]    |                                       the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn new_vt_with_minimum_number(&self, min: i32) -> io::Result<Vt<'_>> {
[INFO] [stderr]    |                                                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/console.rs:109:35
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn open_vt<N: AsVtNumber>(&self, vt_number: N) -> io::Result<Vt> {
[INFO] [stderr]     |                                   ^^^^^ the lifetime is elided here  ^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn open_vt<N: AsVtNumber>(&self, vt_number: N) -> io::Result<Vt<'_>> {
[INFO] [stderr]     |                                                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `vt` (lib) generated 7 warnings (run `cargo fix --lib -p vt` to apply 3 suggestions)
[INFO] [stderr] warning: `vt` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vt-a2832d006a66a720)
[INFO] [stderr]    Doc-tests vt
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3598ce35a5365a6b455097672f0fc599d5f093035ac5ef607891b91d1f1bf399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3598ce35a5365a6b455097672f0fc599d5f093035ac5ef607891b91d1f1bf399", kill_on_drop: false }`
[INFO] [stdout] 3598ce35a5365a6b455097672f0fc599d5f093035ac5ef607891b91d1f1bf399
