[INFO] fetching crate counting-networks 0.1.3...
[INFO] testing counting-networks-0.1.3 against 1.60.0 for beta-1.61-1
[INFO] extracting crate counting-networks 0.1.3 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate counting-networks 0.1.3 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate counting-networks 0.1.3
[INFO] finished tweaking crates.io crate counting-networks 0.1.3
[INFO] tweaked toml for crates.io crate counting-networks 0.1.3 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb6b7511575464d969ecce70bc62f973a64d3173b8752db88e5bec975e0fffb9
[INFO] running `Command { std: "docker" "start" "-a" "bb6b7511575464d969ecce70bc62f973a64d3173b8752db88e5bec975e0fffb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb6b7511575464d969ecce70bc62f973a64d3173b8752db88e5bec975e0fffb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb6b7511575464d969ecce70bc62f973a64d3173b8752db88e5bec975e0fffb9", kill_on_drop: false }`
[INFO] [stdout] bb6b7511575464d969ecce70bc62f973a64d3173b8752db88e5bec975e0fffb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc6e3770354f6cb2f8d60b432a3290b08d228d2ce90d538dd1cd7dc964bd591e
[INFO] running `Command { std: "docker" "start" "-a" "cc6e3770354f6cb2f8d60b432a3290b08d228d2ce90d538dd1cd7dc964bd591e", kill_on_drop: false }`
[INFO] [stderr]    Compiling counting-networks v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::heap`
[INFO] [stdout]  --> src/networks/bitonic.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::heap::{Alloc, Heap, Layout};
[INFO] [stdout]   |          ^^^^ could not find `heap` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api, pointer_methods, attr_literals, shared)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `counting-networks` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "cc6e3770354f6cb2f8d60b432a3290b08d228d2ce90d538dd1cd7dc964bd591e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc6e3770354f6cb2f8d60b432a3290b08d228d2ce90d538dd1cd7dc964bd591e", kill_on_drop: false }`
[INFO] [stdout] cc6e3770354f6cb2f8d60b432a3290b08d228d2ce90d538dd1cd7dc964bd591e