[INFO] fetching crate eiz 0.3.0...
[INFO] checking eiz-0.3.0 against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] extracting crate eiz 0.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate eiz 0.3.0 on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eiz 0.3.0
[INFO] finished tweaking crates.io crate eiz 0.3.0
[INFO] tweaked toml for crates.io crate eiz 0.3.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4b7771a408a86ccc9efc2ebbb27ae391497af3a7b9c89ae1031a37f5b1cdba7
[INFO] running `Command { std: "docker" "start" "-a" "c4b7771a408a86ccc9efc2ebbb27ae391497af3a7b9c89ae1031a37f5b1cdba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4b7771a408a86ccc9efc2ebbb27ae391497af3a7b9c89ae1031a37f5b1cdba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4b7771a408a86ccc9efc2ebbb27ae391497af3a7b9c89ae1031a37f5b1cdba7", kill_on_drop: false }`
[INFO] [stdout] c4b7771a408a86ccc9efc2ebbb27ae391497af3a7b9c89ae1031a37f5b1cdba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e76c43778944299692ec8903ea075d6a9abd55b3f351be40c8c48acd068c0fec
[INFO] running `Command { std: "docker" "start" "-a" "e76c43778944299692ec8903ea075d6a9abd55b3f351be40c8c48acd068c0fec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking eiz v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `read` found for union `MaybeUninit` in the current scope
[INFO] [stdout]    --> src/rt_queue.rs:114:63
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 drop((*self.buf.offset(read_masked as isize)).read());
[INFO] [stdout]     |                                                               ^^^^ method not found in `MaybeUninit<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read` found for union `MaybeUninit` in the current scope
[INFO] [stdout]    --> src/rt_queue.rs:154:74
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let result = unsafe { (*self.0.buf.offset(read_masked as isize)).read() };
[INFO] [stdout]     |                                                                          ^^^^ method not found in `MaybeUninit<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eiz`
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `read` found for union `MaybeUninit` in the current scope
[INFO] [stdout]    --> src/rt_queue.rs:114:63
[INFO] [stdout]     |
[INFO] [stdout] 114 |                 drop((*self.buf.offset(read_masked as isize)).read());
[INFO] [stdout]     |                                                               ^^^^ method not found in `MaybeUninit<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read` found for union `MaybeUninit` in the current scope
[INFO] [stdout]    --> src/rt_queue.rs:154:74
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let result = unsafe { (*self.0.buf.offset(read_masked as isize)).read() };
[INFO] [stdout]     |                                                                          ^^^^ method not found in `MaybeUninit<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e76c43778944299692ec8903ea075d6a9abd55b3f351be40c8c48acd068c0fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e76c43778944299692ec8903ea075d6a9abd55b3f351be40c8c48acd068c0fec", kill_on_drop: false }`
[INFO] [stdout] e76c43778944299692ec8903ea075d6a9abd55b3f351be40c8c48acd068c0fec