[INFO] fetching crate misty-vm 0.1.6...
[INFO] checking misty-vm-0.1.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate misty-vm 0.1.6 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate misty-vm 0.1.6
[INFO] finished tweaking crates.io crate misty-vm 0.1.6
[INFO] tweaked toml for crates.io crate misty-vm 0.1.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate misty-vm 0.1.6 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0f8259f7d899e2d70c1499e33f3916308ca86cd8448d5ce58d74ec1276d2f10
[INFO] running `Command { std: "docker" "start" "-a" "c0f8259f7d899e2d70c1499e33f3916308ca86cd8448d5ce58d74ec1276d2f10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0f8259f7d899e2d70c1499e33f3916308ca86cd8448d5ce58d74ec1276d2f10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f8259f7d899e2d70c1499e33f3916308ca86cd8448d5ce58d74ec1276d2f10", kill_on_drop: false }`
[INFO] [stdout] c0f8259f7d899e2d70c1499e33f3916308ca86cd8448d5ce58d74ec1276d2f10
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7eb05fabd1cdf6d1b147cbd7ceb5861a3bce70d8b359862be4ea8bb1ec14f412
[INFO] running `Command { std: "docker" "start" "-a" "7eb05fabd1cdf6d1b147cbd7ceb5861a3bce70d8b359862be4ea8bb1ec14f412", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling misty-vm-macro v0.1.4
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking misty-vm v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/async_task.rs:222:19
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn handle(&self) -> MistyReadonlyClientHandle {
[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] 222 |     pub fn handle(&self) -> MistyReadonlyClientHandle<'_> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ControllerRet<R>, Infallible>
[INFO] [stdout]    --> src/client/pod.rs:132:81
[INFO] [stdout]     |
[INFO] [stdout] 132 |       pub fn flush_scheduled_tasks(&self) -> Result<ControllerRet<R>, Infallible> {
[INFO] [stdout]     |  _________________________________________________________________________________^
[INFO] [stdout] 133 | |         self.call_controller(controller_flush_scheduled_tasks, ())
[INFO] [stdout] 134 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ControllerRet<R>, Infallible>
[INFO] [stdout]    --> src/client/pod.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         self.call_controller(controller_flush_scheduled_tasks, ())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/controllers.rs:18:19
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn handle(&self) -> MistyClientHandle {
[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] 18 |     pub fn handle(&self) -> MistyClientHandle<'_> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `misty-vm` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/async_task.rs:222:19
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn handle(&self) -> MistyReadonlyClientHandle {
[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] 222 |     pub fn handle(&self) -> MistyReadonlyClientHandle<'_> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ControllerRet<R>, Infallible>
[INFO] [stdout]    --> src/client/pod.rs:132:81
[INFO] [stdout]     |
[INFO] [stdout] 132 |       pub fn flush_scheduled_tasks(&self) -> Result<ControllerRet<R>, Infallible> {
[INFO] [stdout]     |  _________________________________________________________________________________^
[INFO] [stdout] 133 | |         self.call_controller(controller_flush_scheduled_tasks, ())
[INFO] [stdout] 134 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ControllerRet<R>, Infallible>
[INFO] [stdout]    --> src/client/pod.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         self.call_controller(controller_flush_scheduled_tasks, ())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/controllers.rs:18:19
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn handle(&self) -> MistyClientHandle {
[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] 18 |     pub fn handle(&self) -> MistyClientHandle<'_> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `misty-vm` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7eb05fabd1cdf6d1b147cbd7ceb5861a3bce70d8b359862be4ea8bb1ec14f412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eb05fabd1cdf6d1b147cbd7ceb5861a3bce70d8b359862be4ea8bb1ec14f412", kill_on_drop: false }`
[INFO] [stdout] 7eb05fabd1cdf6d1b147cbd7ceb5861a3bce70d8b359862be4ea8bb1ec14f412
