[INFO] fetching crate rbtset 1.0.1...
[INFO] testing rbtset-1.0.1 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate rbtset 1.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rbtset 1.0.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 399b866004c5c95853e956be60d2fd4d799af703de31acfda6add03fece7c283
[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" "399b866004c5c95853e956be60d2fd4d799af703de31acfda6add03fece7c283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "399b866004c5c95853e956be60d2fd4d799af703de31acfda6add03fece7c283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "399b866004c5c95853e956be60d2fd4d799af703de31acfda6add03fece7c283", kill_on_drop: false }`
[INFO] [stdout] 399b866004c5c95853e956be60d2fd4d799af703de31acfda6add03fece7c283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e77d966e779bec64aa02a16e3e689a2d1c41158f90592e915920016541d95c94
[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" "e77d966e779bec64aa02a16e3e689a2d1c41158f90592e915920016541d95c94", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "e77d966e779bec64aa02a16e3e689a2d1c41158f90592e915920016541d95c94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e77d966e779bec64aa02a16e3e689a2d1c41158f90592e915920016541d95c94", kill_on_drop: false }`
[INFO] [stdout] e77d966e779bec64aa02a16e3e689a2d1c41158f90592e915920016541d95c94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d0a0067274bba265d8ba1e8fba362f75f8f91d46735473f74b328b5a784df27
[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" "9d0a0067274bba265d8ba1e8fba362f75f8f91d46735473f74b328b5a784df27", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling itertools v0.8.2
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling 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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.29s
[INFO] running `Command { std: "docker" "inspect" "9d0a0067274bba265d8ba1e8fba362f75f8f91d46735473f74b328b5a784df27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d0a0067274bba265d8ba1e8fba362f75f8f91d46735473f74b328b5a784df27", kill_on_drop: false }`
[INFO] [stdout] 9d0a0067274bba265d8ba1e8fba362f75f8f91d46735473f74b328b5a784df27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b8c4757c0b0031d7395b79731e1d6affef3ee59b4f4e36e6fd063ac5a3ca0ba2
[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" "b8c4757c0b0031d7395b79731e1d6affef3ee59b4f4e36e6fd063ac5a3ca0ba2", kill_on_drop: false }`
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/tree.rs:237:13
[INFO] [stderr]     |
[INFO] [stderr] 236 |         let node = if let Some(ref root) = self.root {
[INFO] [stderr]     |                                -------- immutable borrow occurs here
[INFO] [stderr] 237 |             self.insert_from(root.duplicate(), data)
[INFO] [stderr]     |             ^^^^             ---- immutable borrow later used here
[INFO] [stderr]     |             |
[INFO] [stderr]     |             mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/tree.rs:237:13
[INFO] [stderr]     |
[INFO] [stderr] 236 |         let node = if let Some(ref root) = self.root {
[INFO] [stderr]     |                                -------- immutable borrow occurs here
[INFO] [stderr] 237 |             self.insert_from(root.duplicate(), data)
[INFO] [stderr]     |             ^^^^             ---- immutable borrow later used here
[INFO] [stderr]     |             |
[INFO] [stderr]     |             mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rbtset-f3476e9d55d647d4
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tree::tests::iterator ... ok
[INFO] [stdout] test tree::tests::insert ... ok
[INFO] [stdout] test tree::tests::delete_pseudoleaves ... ok
[INFO] [stdout] test tree::tests::clone ... ok
[INFO] [stdout] test tree::tests::rotate_left_parent ... ok
[INFO] [stdout] test tree::tests::repack ... ok
[INFO] [stdout] test tree::tests::rotate_right_root ... ok
[INFO] [stdout] test tree::tests::rotate_left_root ... ok
[INFO] [stdout] test tree::tests::delete ... ok
[INFO] [stdout] test tree::tests::rotate_right_parent ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rbtset
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test src/lib.rs - Consecutive (line 22) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::dump_tree_as_dot (line 737) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::clear (line 275) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::get_node (line 296) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::insert (line 227) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet (line 31) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::is_empty (line 525) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::get (line 87) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::iter (line 541) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::iter_from (line 563) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::len (line 509) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::first (line 469) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::last (line 489) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::remove (line 253) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::repack (line 647) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::remove_node (line 395) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::values (line 590) ... ok
[INFO] [stdout] test src/tree.rs - tree::RBTreeSet<T>::values_from (line 619) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b8c4757c0b0031d7395b79731e1d6affef3ee59b4f4e36e6fd063ac5a3ca0ba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c4757c0b0031d7395b79731e1d6affef3ee59b4f4e36e6fd063ac5a3ca0ba2", kill_on_drop: false }`
[INFO] [stdout] b8c4757c0b0031d7395b79731e1d6affef3ee59b4f4e36e6fd063ac5a3ca0ba2
