[INFO] crate semver-store 0.2.0 is already in cache
[INFO] testing semver-store-0.2.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate semver-store 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate semver-store 0.2.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a552b3e016856b318d4a6cb957cf7f2e5445c87e095f4d640fbb08f022dff3f9
[INFO] running `"docker" "start" "-a" "a552b3e016856b318d4a6cb957cf7f2e5445c87e095f4d640fbb08f022dff3f9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling semver-store v0.2.0 (/opt/rustwide/workdir)
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "a552b3e016856b318d4a6cb957cf7f2e5445c87e095f4d640fbb08f022dff3f9"`
[INFO] running `"docker" "rm" "-f" "a552b3e016856b318d4a6cb957cf7f2e5445c87e095f4d640fbb08f022dff3f9"`
[INFO] [stdout] a552b3e016856b318d4a6cb957cf7f2e5445c87e095f4d640fbb08f022dff3f9
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2d41b2decdca3ac0bc31784535eae16b1c86147c1d4e9e29c5b34c0c6c6f72e6
[INFO] running `"docker" "start" "-a" "2d41b2decdca3ac0bc31784535eae16b1c86147c1d4e9e29c5b34c0c6c6f72e6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling semver-store v0.2.0 (/opt/rustwide/workdir)
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `"docker" "inspect" "2d41b2decdca3ac0bc31784535eae16b1c86147c1d4e9e29c5b34c0c6c6f72e6"`
[INFO] running `"docker" "rm" "-f" "2d41b2decdca3ac0bc31784535eae16b1c86147c1d4e9e29c5b34c0c6c6f72e6"`
[INFO] [stdout] 2d41b2decdca3ac0bc31784535eae16b1c86147c1d4e9e29c5b34c0c6c6f72e6
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b9171c3b908b18ecc279bdb7086f7b2cd4b0fb6a69603029be7eaed1653eac67
[INFO] running `"docker" "start" "-a" "b9171c3b908b18ecc279bdb7086f7b2cd4b0fb6a69603029be7eaed1653eac67"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/semver_store-59414e1c0dc3627b
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test semver_store_tests::not_found ... ok
[INFO] [stdout] test semver_store_tests::get_patch_wildcard_shortcut ... ok
[INFO] [stdout] test semver_store_tests::store_a_string ... ok
[INFO] [stdout] test semver_store_tests::get_minor_wildcard ... ok
[INFO] [stdout] test semver_store_tests::empty_store ... ok
[INFO] [stdout] test semver_store_tests::delete_stored_values ... ok
[INFO] [stdout] test semver_store_tests::store_multiple_values ... ok
[INFO] [stdout] test semver_store_tests::store_multiple_values_and_multiple_prefixes ... ok
[INFO] [stderr]    Doc-tests semver-store
[INFO] [stdout] test semver_store_tests::delete_minor_wildcard_shortcut ... ok
[INFO] [stdout] test node::node_tests::create_a_node ... ok
[INFO] [stdout] test node::node_tests::add_child_to_child ... ok
[INFO] [stdout] test node::node_tests::add_a_child_multiple_times ... ok
[INFO] [stdout] test semver_store_tests::create_a_store ... ok
[INFO] [stdout] test semver_store_tests::store_has_key ... ok
[INFO] [stdout] test semver_store_tests::delete_major_wildcard_shortcut ... ok
[INFO] [stdout] test node::node_tests::add_a_child ... ok
[INFO] [stdout] test node::node_tests::remove_a_child ... ok
[INFO] [stdout] test node::node_tests::get_the_max_child ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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 `"docker" "inspect" "b9171c3b908b18ecc279bdb7086f7b2cd4b0fb6a69603029be7eaed1653eac67"`
[INFO] running `"docker" "rm" "-f" "b9171c3b908b18ecc279bdb7086f7b2cd4b0fb6a69603029be7eaed1653eac67"`
[INFO] [stdout] b9171c3b908b18ecc279bdb7086f7b2cd4b0fb6a69603029be7eaed1653eac67