[INFO] fetching crate owned-buf 0.3.0...
[INFO] checking owned-buf-0.3.0 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate owned-buf 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate owned-buf 0.3.0 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate owned-buf 0.3.0
[INFO] finished tweaking crates.io crate owned-buf 0.3.0
[INFO] tweaked toml for crates.io crate owned-buf 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66873c1e17cf43e85a558a68202188e9481bee828dd3fdf12e310236b568d825
[INFO] running `Command { std: "docker" "start" "-a" "66873c1e17cf43e85a558a68202188e9481bee828dd3fdf12e310236b568d825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66873c1e17cf43e85a558a68202188e9481bee828dd3fdf12e310236b568d825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66873c1e17cf43e85a558a68202188e9481bee828dd3fdf12e310236b568d825", kill_on_drop: false }`
[INFO] [stdout] 66873c1e17cf43e85a558a68202188e9481bee828dd3fdf12e310236b568d825
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b52c3c81bfb5ae1ea7393df4fbe6a63de1ceb56d3848c46fa4c03bf54022caf8
[INFO] running `Command { std: "docker" "start" "-a" "b52c3c81bfb5ae1ea7393df4fbe6a63de1ceb56d3848c46fa4c03bf54022caf8", kill_on_drop: false }`
[INFO] [stderr]     Checking owned-buf v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `write_slice` found for union `MaybeUninit` in the current scope
[INFO] [stdout]    --> src/lib.rs:551:26
[INFO] [stdout]     |
[INFO] [stdout] 551 |             MaybeUninit::write_slice(&mut self.as_mut()[..data.len()], data);
[INFO] [stdout]     |                          ^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]    --> /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/core/src/mem/maybe_uninit.rs:288:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `write_slice` found for union `MaybeUninit` in the current scope
[INFO] [stdout]    --> src/lib.rs:551:26
[INFO] [stdout]     |
[INFO] [stdout] 551 |             MaybeUninit::write_slice(&mut self.as_mut()[..data.len()], data);
[INFO] [stdout]     |                          ^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]    --> /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/core/src/mem/maybe_uninit.rs:288:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `owned-buf` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `owned-buf` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b52c3c81bfb5ae1ea7393df4fbe6a63de1ceb56d3848c46fa4c03bf54022caf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b52c3c81bfb5ae1ea7393df4fbe6a63de1ceb56d3848c46fa4c03bf54022caf8", kill_on_drop: false }`
[INFO] [stdout] b52c3c81bfb5ae1ea7393df4fbe6a63de1ceb56d3848c46fa4c03bf54022caf8
