[INFO] fetching crate slice-dst 1.6.0...
[INFO] checking slice-dst-1.6.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate slice-dst 1.6.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate slice-dst 1.6.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate slice-dst 1.6.0
[INFO] tweaked toml for crates.io crate slice-dst 1.6.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate slice-dst 1.6.0 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] crate crates.io crate slice-dst 1.6.0 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" "+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] 333f962bc49395d8516dfb085c86e11579e9c4c13f83a451770cdbb4e514c4e0
[INFO] running `Command { std: "docker" "start" "-a" "333f962bc49395d8516dfb085c86e11579e9c4c13f83a451770cdbb4e514c4e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "333f962bc49395d8516dfb085c86e11579e9c4c13f83a451770cdbb4e514c4e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333f962bc49395d8516dfb085c86e11579e9c4c13f83a451770cdbb4e514c4e0", kill_on_drop: false }`
[INFO] [stdout] 333f962bc49395d8516dfb085c86e11579e9c4c13f83a451770cdbb4e514c4e0
[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] 24fd5cd0ccef4712faf2bdafc03d4c96f8beab1fa80a9f198e09485ea8024018
[INFO] running `Command { std: "docker" "start" "-a" "24fd5cd0ccef4712faf2bdafc03d4c96f8beab1fa80a9f198e09485ea8024018", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling erasable v1.2.1
[INFO] [stderr]    Compiling slice-dst v1.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<alloc::boxed::Box<S>, <alloc::boxed::Box<S> as AllocSliceDst<S>>::new_slice_dst::Void>
[INFO] [stdout]    --> src/lib.rs:293:23
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 match <Self as $crate::TryAllocSliceDst<S>>::try_new_slice_dst(len, init) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 326 | impl_alloc_by_try_alloc!(Box);
[INFO] [stdout]     | ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_alloc_by_try_alloc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<S>, <Rc<S> as AllocSliceDst<S>>::new_slice_dst::Void>
[INFO] [stdout]    --> src/lib.rs:293:23
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 match <Self as $crate::TryAllocSliceDst<S>>::try_new_slice_dst(len, init) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 361 | impl_alloc_by_try_alloc!(Rc);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_alloc_by_try_alloc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<S>, <Arc<S> as AllocSliceDst<S>>::new_slice_dst::Void>
[INFO] [stdout]    --> src/lib.rs:293:23
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 match <Self as $crate::TryAllocSliceDst<S>>::try_new_slice_dst(len, init) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 372 | impl_alloc_by_try_alloc!(Arc);
[INFO] [stdout]     | ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_alloc_by_try_alloc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `slice-dst` (lib) due to 3 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<alloc::boxed::Box<S>, <alloc::boxed::Box<S> as AllocSliceDst<S>>::new_slice_dst::Void>
[INFO] [stdout]    --> src/lib.rs:293:23
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 match <Self as $crate::TryAllocSliceDst<S>>::try_new_slice_dst(len, init) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 326 | impl_alloc_by_try_alloc!(Box);
[INFO] [stdout]     | ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_alloc_by_try_alloc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Rc<S>, <Rc<S> as AllocSliceDst<S>>::new_slice_dst::Void>
[INFO] [stdout]    --> src/lib.rs:293:23
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 match <Self as $crate::TryAllocSliceDst<S>>::try_new_slice_dst(len, init) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 361 | impl_alloc_by_try_alloc!(Rc);
[INFO] [stdout]     | ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_alloc_by_try_alloc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Arc<S>, <Arc<S> as AllocSliceDst<S>>::new_slice_dst::Void>
[INFO] [stdout]    --> src/lib.rs:293:23
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 match <Self as $crate::TryAllocSliceDst<S>>::try_new_slice_dst(len, init) {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 372 | impl_alloc_by_try_alloc!(Arc);
[INFO] [stdout]     | ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_alloc_by_try_alloc` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `slice-dst` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "24fd5cd0ccef4712faf2bdafc03d4c96f8beab1fa80a9f198e09485ea8024018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24fd5cd0ccef4712faf2bdafc03d4c96f8beab1fa80a9f198e09485ea8024018", kill_on_drop: false }`
[INFO] [stdout] 24fd5cd0ccef4712faf2bdafc03d4c96f8beab1fa80a9f198e09485ea8024018
