[INFO] fetching crate ve 0.0.3...
[INFO] checking ve-0.0.3 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate ve 0.0.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ve 0.0.3 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ve 0.0.3
[INFO] finished tweaking crates.io crate ve 0.0.3
[INFO] tweaked toml for crates.io crate ve 0.0.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2789dd55be863ca0315df9953c54663eaa5721e4cefce41a4900f6cc13c773f9
[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" "2789dd55be863ca0315df9953c54663eaa5721e4cefce41a4900f6cc13c773f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2789dd55be863ca0315df9953c54663eaa5721e4cefce41a4900f6cc13c773f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2789dd55be863ca0315df9953c54663eaa5721e4cefce41a4900f6cc13c773f9", kill_on_drop: false }`
[INFO] [stdout] 2789dd55be863ca0315df9953c54663eaa5721e4cefce41a4900f6cc13c773f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 638d4f3671b196847351694cff010e2e99bb7592c300d892a1bd1d1aedf5d949
[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" "638d4f3671b196847351694cff010e2e99bb7592c300d892a1bd1d1aedf5d949", kill_on_drop: false }`
[INFO] [stderr]     Checking ve v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocRef`
[INFO] [stdout]  --> src/raw_vec.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::alloc::{AllocRef, Layout, LayoutErr};
[INFO] [stdout]   |                   ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::AllocRef`
[INFO] [stdout]  --> src/raw_vec.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::alloc::{AllocRef, Layout, LayoutErr};
[INFO] [stdout]   |                   ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ve`
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "638d4f3671b196847351694cff010e2e99bb7592c300d892a1bd1d1aedf5d949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "638d4f3671b196847351694cff010e2e99bb7592c300d892a1bd1d1aedf5d949", kill_on_drop: false }`
[INFO] [stdout] 638d4f3671b196847351694cff010e2e99bb7592c300d892a1bd1d1aedf5d949