[INFO] updating cached repository https://github.com/CrimsonAndRed/MyLittleTree [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 78579106ceda8e62514cfb157392a5c603b54fdf [INFO] testing CrimsonAndRed/MyLittleTree against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrimsonAndRed%2FMyLittleTree" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CrimsonAndRed/MyLittleTree on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/CrimsonAndRed/MyLittleTree [INFO] finished tweaking git repo https://github.com/CrimsonAndRed/MyLittleTree [INFO] tweaked toml for git repo https://github.com/CrimsonAndRed/MyLittleTree written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/CrimsonAndRed/MyLittleTree already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4637c1481bc4b25e4a1e6ca5adf973714a94cae7948e20709127e7692f2c3e0c [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" "4637c1481bc4b25e4a1e6ca5adf973714a94cae7948e20709127e7692f2c3e0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4637c1481bc4b25e4a1e6ca5adf973714a94cae7948e20709127e7692f2c3e0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4637c1481bc4b25e4a1e6ca5adf973714a94cae7948e20709127e7692f2c3e0c", kill_on_drop: false }` [INFO] [stdout] 4637c1481bc4b25e4a1e6ca5adf973714a94cae7948e20709127e7692f2c3e0c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 73ea8dee580a6ed55c2a0d770828987609f9dbdfd332ac151ae1a51c6eba6401 [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" "73ea8dee580a6ed55c2a0d770828987609f9dbdfd332ac151ae1a51c6eba6401", kill_on_drop: false }` [INFO] [stderr] Compiling my_little_tree v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/lib.rs:108:27 [INFO] [stdout] | [INFO] [stdout] 102 | match &self.root { [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 108 | Some(link) => self.inner_insert(new_node, Rc::clone(&link)), [INFO] [stdout] | ^^^^ mutable borrow occurs here ----- immutable borrow later used 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 0.40s [INFO] running `Command { std: "docker" "inspect" "73ea8dee580a6ed55c2a0d770828987609f9dbdfd332ac151ae1a51c6eba6401", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73ea8dee580a6ed55c2a0d770828987609f9dbdfd332ac151ae1a51c6eba6401", kill_on_drop: false }` [INFO] [stdout] 73ea8dee580a6ed55c2a0d770828987609f9dbdfd332ac151ae1a51c6eba6401 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 981b685dba505d585b563b977985c3b236544a21135898de473d2a5c3f30bb7f [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" "981b685dba505d585b563b977985c3b236544a21135898de473d2a5c3f30bb7f", kill_on_drop: false }` [INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/lib.rs:108:27 [INFO] [stdout] | [INFO] [stdout] 102 | match &self.root { [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 108 | Some(link) => self.inner_insert(new_node, Rc::clone(&link)), [INFO] [stdout] | ^^^^ mutable borrow occurs here ----- immutable borrow later used 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] [stderr] Compiling my_little_tree v1.0.0 (/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/lib.rs:108:27 [INFO] [stdout] | [INFO] [stdout] 102 | match &self.root { [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 108 | Some(link) => self.inner_insert(new_node, Rc::clone(&link)), [INFO] [stdout] | ^^^^ mutable borrow occurs here ----- immutable borrow later used 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 test [unoptimized + debuginfo] target(s) in 0.95s [INFO] running `Command { std: "docker" "inspect" "981b685dba505d585b563b977985c3b236544a21135898de473d2a5c3f30bb7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "981b685dba505d585b563b977985c3b236544a21135898de473d2a5c3f30bb7f", kill_on_drop: false }` [INFO] [stdout] 981b685dba505d585b563b977985c3b236544a21135898de473d2a5c3f30bb7f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c7eb972958f5263634fdc68343a8178adfaf6696651826891aa840fb9f12e3b1 [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" "c7eb972958f5263634fdc68343a8178adfaf6696651826891aa840fb9f12e3b1", kill_on_drop: false }` [INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/lib.rs:108:27 [INFO] [stderr] | [INFO] [stderr] 102 | match &self.root { [INFO] [stderr] | ---------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 108 | Some(link) => self.inner_insert(new_node, Rc::clone(&link)), [INFO] [stderr] | ^^^^ mutable borrow occurs here ----- immutable borrow later used 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 [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/lib.rs:108:27 [INFO] [stderr] | [INFO] [stderr] 102 | match &self.root { [INFO] [stderr] | ---------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 108 | Some(link) => self.inner_insert(new_node, Rc::clone(&link)), [INFO] [stderr] | ^^^^ mutable borrow occurs here ----- immutable borrow later used 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 [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/my_little_tree-0825f7008cdc2893 [INFO] [stdout] [INFO] [stdout] running 17 tests [INFO] [stdout] test tests::delete_node_both_l_same ... ok [INFO] [stdout] test tests::delete_node_both_r_diff ... ok [INFO] [stdout] test tests::insert_find ... ok [INFO] [stdout] test tests::empty_tree ... ok [INFO] [stdout] test tests::delete_node_r ... ok [INFO] [stdout] test tests::delete_node_none ... ok [INFO] [stdout] test tests::delete_find ... ok [INFO] [stdout] test tests::delete_node_both_l_diff ... ok [INFO] [stdout] test tests::delete_miss ... ok [INFO] [stdout] test tests::delete_root_both_diff ... ok [INFO] [stdout] test tests::iterate ... ok [INFO] [stdout] test tests::delete_root_l ... ok [INFO] [stdout] test tests::delete_root_none ... ok [INFO] [stdout] test tests::delete_root_r ... ok [INFO] [stdout] test tests::delete_node_l ... ok [INFO] [stdout] test tests::delete_node_both_r_same ... ok [INFO] [stdout] test tests::delete_root_both_same ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests my_little_tree [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" "c7eb972958f5263634fdc68343a8178adfaf6696651826891aa840fb9f12e3b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c7eb972958f5263634fdc68343a8178adfaf6696651826891aa840fb9f12e3b1", kill_on_drop: false }` [INFO] [stdout] c7eb972958f5263634fdc68343a8178adfaf6696651826891aa840fb9f12e3b1