[INFO] fetching crate realbox 0.1.1...
[INFO] testing realbox-0.1.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate realbox 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate realbox 0.1.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate realbox 0.1.1
[INFO] finished tweaking crates.io crate realbox 0.1.1
[INFO] tweaked toml for crates.io crate realbox 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2066d3e92ea6435fc45e887c06a57c1a915666f5561c8655782e5a28ea649a07
[INFO] running `Command { std: "docker" "start" "-a" "2066d3e92ea6435fc45e887c06a57c1a915666f5561c8655782e5a28ea649a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2066d3e92ea6435fc45e887c06a57c1a915666f5561c8655782e5a28ea649a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2066d3e92ea6435fc45e887c06a57c1a915666f5561c8655782e5a28ea649a07", kill_on_drop: false }`
[INFO] [stdout] 2066d3e92ea6435fc45e887c06a57c1a915666f5561c8655782e5a28ea649a07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76f785821583eb00e9150874cfb9a1d135112ffbc51835dc4a7cb8a4a5304b48
[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" "76f785821583eb00e9150874cfb9a1d135112ffbc51835dc4a7cb8a4a5304b48", kill_on_drop: false }`
[INFO] [stderr]    Compiling realbox v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `core::alloc::Alloc`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use core::alloc::Alloc;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ no `Alloc` 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] [stderr] error: could not compile `realbox` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "76f785821583eb00e9150874cfb9a1d135112ffbc51835dc4a7cb8a4a5304b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f785821583eb00e9150874cfb9a1d135112ffbc51835dc4a7cb8a4a5304b48", kill_on_drop: false }`
[INFO] [stdout] 76f785821583eb00e9150874cfb9a1d135112ffbc51835dc4a7cb8a4a5304b48