[INFO] fetching crate moveref 1.0.0...
[INFO] checking moveref-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate moveref 1.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate moveref 1.0.0
[INFO] finished tweaking crates.io crate moveref 1.0.0
[INFO] tweaked toml for crates.io crate moveref 1.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate moveref 1.0.0 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 38 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fe88f7976aac28547ae59a030d0c8c7d115c028e65c6cd570241078a20a033d5
[INFO] running `Command { std: "docker" "start" "-a" "fe88f7976aac28547ae59a030d0c8c7d115c028e65c6cd570241078a20a033d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe88f7976aac28547ae59a030d0c8c7d115c028e65c6cd570241078a20a033d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe88f7976aac28547ae59a030d0c8c7d115c028e65c6cd570241078a20a033d5", kill_on_drop: false }`
[INFO] [stdout] fe88f7976aac28547ae59a030d0c8c7d115c028e65c6cd570241078a20a033d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1944c84c9b1d90c2196ca222f9ae73eb91ec9840e47feb4d1df6c2294784329a
[INFO] running `Command { std: "docker" "start" "-a" "1944c84c9b1d90c2196ca222f9ae73eb91ec9840e47feb4d1df6c2294784329a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.188
[INFO] [stderr]     Checking foldhash v0.2.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling link-cplusplus v1.0.12
[INFO] [stderr]    Compiling cxx v1.0.188
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.188
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking moveref v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<<Self as Emplace<T>>::Output, Infallible>
[INFO] [stdout]   --> src/emplace.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |         match Self::try_emplace(new) {
[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<Pin<MoveRef<'_, T>>, Infallible>
[INFO] [stdout]   --> src/slot.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |         match self.try_emplace(new) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `moveref` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<<Self as emplace::Emplace<T>>::Output, Infallible>
[INFO] [stdout]   --> src/emplace.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |         match Self::try_emplace(new) {
[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<Pin<move_ref::MoveRef<'_, T>>, Infallible>
[INFO] [stdout]   --> src/slot.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |         match self.try_emplace(new) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `moveref` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1944c84c9b1d90c2196ca222f9ae73eb91ec9840e47feb4d1df6c2294784329a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1944c84c9b1d90c2196ca222f9ae73eb91ec9840e47feb4d1df6c2294784329a", kill_on_drop: false }`
[INFO] [stdout] 1944c84c9b1d90c2196ca222f9ae73eb91ec9840e47feb4d1df6c2294784329a