[INFO] fetching crate medianheap 0.2.0...
[INFO] checking medianheap-0.2.0 against beta for pr-78714
[INFO] extracting crate medianheap 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate medianheap 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate medianheap 0.2.0
[INFO] finished tweaking crates.io crate medianheap 0.2.0
[INFO] tweaked toml for crates.io crate medianheap 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6e7be917cda8e723afd905f2b2f5a3379dc750c4ce3933c090e97f8c95022a1
[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" "b6e7be917cda8e723afd905f2b2f5a3379dc750c4ce3933c090e97f8c95022a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6e7be917cda8e723afd905f2b2f5a3379dc750c4ce3933c090e97f8c95022a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6e7be917cda8e723afd905f2b2f5a3379dc750c4ce3933c090e97f8c95022a1", kill_on_drop: false }`
[INFO] [stdout] b6e7be917cda8e723afd905f2b2f5a3379dc750c4ce3933c090e97f8c95022a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aadb8b4cff46d788a2979db521fde02f30c50d4770a4ceb5f3280c929da552a2
[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" "aadb8b4cff46d788a2979db521fde02f30c50d4770a4ceb5f3280c929da552a2", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking min-max-heap v1.3.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking medianheap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.73s
[INFO] running `Command { std: "docker" "inspect" "aadb8b4cff46d788a2979db521fde02f30c50d4770a4ceb5f3280c929da552a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aadb8b4cff46d788a2979db521fde02f30c50d4770a4ceb5f3280c929da552a2", kill_on_drop: false }`
[INFO] [stdout] aadb8b4cff46d788a2979db521fde02f30c50d4770a4ceb5f3280c929da552a2