[INFO] fetching crate const-alg 0.1.1...
[INFO] checking const-alg-0.1.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate const-alg 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate const-alg 0.1.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate const-alg 0.1.1
[INFO] finished tweaking crates.io crate const-alg 0.1.1
[INFO] tweaked toml for crates.io crate const-alg 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array-vec v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2888ed8474e4b112730a24df0abcd847e8d28e49777f105dd854c49b1ab46bf3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2888ed8474e4b112730a24df0abcd847e8d28e49777f105dd854c49b1ab46bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2888ed8474e4b112730a24df0abcd847e8d28e49777f105dd854c49b1ab46bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2888ed8474e4b112730a24df0abcd847e8d28e49777f105dd854c49b1ab46bf3", kill_on_drop: false }`
[INFO] [stdout] 2888ed8474e4b112730a24df0abcd847e8d28e49777f105dd854c49b1ab46bf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 988368becad09a1f18e44a28372799062de009f8d10a752895091524e0890e73
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "988368becad09a1f18e44a28372799062de009f8d10a752895091524e0890e73", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking array-vec v0.1.3
[INFO] [stdout] error[E0599]: no function or associated item named `first_ptr` found for union `MaybeUninit<_>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/array-vec-0.1.3/src/lib.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 |         MaybeUninit::first_ptr(&self.arr)
[INFO] [stdout]    |                      ^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `first_ptr_mut` found for union `MaybeUninit<_>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/array-vec-0.1.3/src/lib.rs:41:22
[INFO] [stdout]    |
[INFO] [stdout] 41 |         MaybeUninit::first_ptr_mut(&mut self.arr)
[INFO] [stdout]    |                      ^^^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[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: could not compile `array-vec`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "988368becad09a1f18e44a28372799062de009f8d10a752895091524e0890e73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "988368becad09a1f18e44a28372799062de009f8d10a752895091524e0890e73", kill_on_drop: false }`
[INFO] [stdout] 988368becad09a1f18e44a28372799062de009f8d10a752895091524e0890e73