[INFO] fetching crate bitboard 0.1.2...
[INFO] checking bitboard-0.1.2 against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] extracting crate bitboard 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate bitboard 0.1.2 on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitboard 0.1.2
[INFO] finished tweaking crates.io crate bitboard 0.1.2
[INFO] tweaked toml for crates.io crate bitboard 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate bitboard 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-0/source/tests/nqueens.rs
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a00ba2bd9d5cebf41c6eb99332420c85a73d72b7cd642ff7c20bea89ce09e2e
[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" "4a00ba2bd9d5cebf41c6eb99332420c85a73d72b7cd642ff7c20bea89ce09e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a00ba2bd9d5cebf41c6eb99332420c85a73d72b7cd642ff7c20bea89ce09e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a00ba2bd9d5cebf41c6eb99332420c85a73d72b7cd642ff7c20bea89ce09e2e", kill_on_drop: false }`
[INFO] [stdout] 4a00ba2bd9d5cebf41c6eb99332420c85a73d72b7cd642ff7c20bea89ce09e2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf6573381f0e00ca1b24c87f344438a27f6ab81b46253974b3d57ff20be1f5de
[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" "cf6573381f0e00ca1b24c87f344438a27f6ab81b46253974b3d57ff20be1f5de", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/tests/nqueens.rs
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]     Checking bitboard v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::heap`
[INFO] [stdout]   --> src/lib.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::heap::{Alloc, Layout, Heap};
[INFO] [stdout]    |          ^^^^ could not find `heap` in `std`
[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] [stderr] error: could not compile `bitboard`
[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[E0432]: unresolved import `std::heap`
[INFO] [stdout]   --> src/lib.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::heap::{Alloc, Layout, Heap};
[INFO] [stdout]    |          ^^^^ could not find `heap` in `std`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cf6573381f0e00ca1b24c87f344438a27f6ab81b46253974b3d57ff20be1f5de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf6573381f0e00ca1b24c87f344438a27f6ab81b46253974b3d57ff20be1f5de", kill_on_drop: false }`
[INFO] [stdout] cf6573381f0e00ca1b24c87f344438a27f6ab81b46253974b3d57ff20be1f5de