[INFO] fetching crate semver-store 0.2.0...
[INFO] testing semver-store-0.2.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate semver-store 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate semver-store 0.2.0 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 semver-store 0.2.0
[INFO] finished tweaking crates.io crate semver-store 0.2.0
[INFO] tweaked toml for crates.io crate semver-store 0.2.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c2344981330c03643435511b643999f180e7f92983e4d42e648d47c8589a3693
[INFO] running `Command { std: "docker" "start" "-a" "c2344981330c03643435511b643999f180e7f92983e4d42e648d47c8589a3693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2344981330c03643435511b643999f180e7f92983e4d42e648d47c8589a3693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2344981330c03643435511b643999f180e7f92983e4d42e648d47c8589a3693", kill_on_drop: false }`
[INFO] [stdout] c2344981330c03643435511b643999f180e7f92983e4d42e648d47c8589a3693
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6b1f05cdc2dcb632849387fddcaa416d40ac4c4693096f0c2ef7458cdd9045fb
[INFO] running `Command { std: "docker" "start" "-a" "6b1f05cdc2dcb632849387fddcaa416d40ac4c4693096f0c2ef7458cdd9045fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-store v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/node.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 31 |         match self.children.keys().max() {
[INFO] [stdout]    |               ------------- immutable borrow occurs here
[INFO] [stdout] 32 |             Some(max) => self.get_child(*max),
[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 0.47s
[INFO] running `Command { std: "docker" "inspect" "6b1f05cdc2dcb632849387fddcaa416d40ac4c4693096f0c2ef7458cdd9045fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b1f05cdc2dcb632849387fddcaa416d40ac4c4693096f0c2ef7458cdd9045fb", kill_on_drop: false }`
[INFO] [stdout] 6b1f05cdc2dcb632849387fddcaa416d40ac4c4693096f0c2ef7458cdd9045fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 373d2c95d3a7a7de70be55bbf289343f3ff4d7b954b415e8272d7ed777a491f5
[INFO] running `Command { std: "docker" "start" "-a" "373d2c95d3a7a7de70be55bbf289343f3ff4d7b954b415e8272d7ed777a491f5", kill_on_drop: false }`
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/node.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 31 |         match self.children.keys().max() {
[INFO] [stdout]    |               ------------- immutable borrow occurs here
[INFO] [stdout] 32 |             Some(max) => self.get_child(*max),
[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] [stderr]    Compiling semver-store v0.2.0 (/opt/rustwide/workdir)
[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/node.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 31 |         match self.children.keys().max() {
[INFO] [stdout]    |               ------------- immutable borrow occurs here
[INFO] [stdout] 32 |             Some(max) => self.get_child(*max),
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "373d2c95d3a7a7de70be55bbf289343f3ff4d7b954b415e8272d7ed777a491f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "373d2c95d3a7a7de70be55bbf289343f3ff4d7b954b415e8272d7ed777a491f5", kill_on_drop: false }`
[INFO] [stdout] 373d2c95d3a7a7de70be55bbf289343f3ff4d7b954b415e8272d7ed777a491f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] cb120d06d72057bc468788b7fe891bc572a3a0e6121cc02d003ec05bb6a12b9d
[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" "cb120d06d72057bc468788b7fe891bc572a3a0e6121cc02d003ec05bb6a12b9d", kill_on_drop: false }`
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/node.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |         match self.children.keys().max() {
[INFO] [stderr]    |               ------------- immutable borrow occurs here
[INFO] [stderr] 32 |             Some(max) => self.get_child(*max),
[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/node.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |         match self.children.keys().max() {
[INFO] [stderr]    |               ------------- immutable borrow occurs here
[INFO] [stderr] 32 |             Some(max) => self.get_child(*max),
[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] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 18 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/semver_store-7707c765c2e9b066
[INFO] [stdout] test node::node_tests::add_a_child ... ok
[INFO] [stdout] test node::node_tests::add_child_to_child ... ok
[INFO] [stdout] test semver_store_tests::delete_major_wildcard_shortcut ... ok
[INFO] [stdout] test node::node_tests::create_a_node ... ok
[INFO] [stdout] test semver_store_tests::delete_minor_wildcard_shortcut ... ok
[INFO] [stdout] test semver_store_tests::empty_store ... ok
[INFO] [stdout] test semver_store_tests::store_multiple_values ... ok
[INFO] [stdout] test semver_store_tests::create_a_store ... ok
[INFO] [stdout] test semver_store_tests::store_multiple_values_and_multiple_prefixes ... ok
[INFO] [stdout] test semver_store_tests::store_has_key ... ok
[INFO] [stdout] test node::node_tests::get_the_max_child ... ok
[INFO] [stdout] test node::node_tests::remove_a_child ... ok
[INFO] [stdout] test semver_store_tests::store_a_string ... ok
[INFO] [stdout] test semver_store_tests::not_found ... ok
[INFO] [stdout] test semver_store_tests::get_patch_wildcard_shortcut ... ok
[INFO] [stdout] test node::node_tests::add_a_child_multiple_times ... ok
[INFO] [stdout] test semver_store_tests::delete_stored_values ... ok
[INFO] [stdout] test semver_store_tests::get_minor_wildcard ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests semver-store
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb120d06d72057bc468788b7fe891bc572a3a0e6121cc02d003ec05bb6a12b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb120d06d72057bc468788b7fe891bc572a3a0e6121cc02d003ec05bb6a12b9d", kill_on_drop: false }`
[INFO] [stdout] cb120d06d72057bc468788b7fe891bc572a3a0e6121cc02d003ec05bb6a12b9d
