[INFO] fetching crate rbtset 1.0.1... [INFO] checking rbtset-1.0.1 against beta for pr-78714 [INFO] extracting crate rbtset 1.0.1 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate rbtset 1.0.1 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 rbtset 1.0.1 [INFO] finished tweaking crates.io crate rbtset 1.0.1 [INFO] tweaked toml for crates.io crate rbtset 1.0.1 written to /workspace/builds/worker-2/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e914f9e6e84b4311f710c504dfb0fbc3722b93480fcf9dd5647a8c5f43aa9a0b [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" "e914f9e6e84b4311f710c504dfb0fbc3722b93480fcf9dd5647a8c5f43aa9a0b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e914f9e6e84b4311f710c504dfb0fbc3722b93480fcf9dd5647a8c5f43aa9a0b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e914f9e6e84b4311f710c504dfb0fbc3722b93480fcf9dd5647a8c5f43aa9a0b", kill_on_drop: false }` [INFO] [stdout] e914f9e6e84b4311f710c504dfb0fbc3722b93480fcf9dd5647a8c5f43aa9a0b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d29843317130016b7718b41248b770207b59c41395a037e5cfaacbf07a8e0b81 [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" "d29843317130016b7718b41248b770207b59c41395a037e5cfaacbf07a8e0b81", kill_on_drop: false }` [INFO] [stderr] Checking rbtset v1.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/tree.rs:237:13 [INFO] [stdout] | [INFO] [stdout] 236 | let node = if let Some(ref root) = self.root { [INFO] [stdout] | -------- immutable borrow occurs here [INFO] [stdout] 237 | self.insert_from(root.duplicate(), data) [INFO] [stdout] | ^^^^ ---- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/tree.rs:237:13 [INFO] [stdout] | [INFO] [stdout] 236 | let node = if let Some(ref root) = self.root { [INFO] [stdout] | -------- immutable borrow occurs here [INFO] [stdout] 237 | self.insert_from(root.duplicate(), data) [INFO] [stdout] | ^^^^ ---- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.25s [INFO] running `Command { std: "docker" "inspect" "d29843317130016b7718b41248b770207b59c41395a037e5cfaacbf07a8e0b81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d29843317130016b7718b41248b770207b59c41395a037e5cfaacbf07a8e0b81", kill_on_drop: false }` [INFO] [stdout] d29843317130016b7718b41248b770207b59c41395a037e5cfaacbf07a8e0b81