[INFO] cloning repository https://github.com/CrimsonAndRed/MyLittleTree [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CrimsonAndRed/MyLittleTree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrimsonAndRed%2FMyLittleTree", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrimsonAndRed%2FMyLittleTree'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 78579106ceda8e62514cfb157392a5c603b54fdf [INFO] testing CrimsonAndRed/MyLittleTree against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrimsonAndRed%2FMyLittleTree" "/workspace/builds/worker-25/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CrimsonAndRed/MyLittleTree on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-25/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" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e8a19f62e3866039d057308b3cca6557062264f95170a5e894c077a56e8e8afe [INFO] running `Command { std: "docker" "start" "-a" "e8a19f62e3866039d057308b3cca6557062264f95170a5e894c077a56e8e8afe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e8a19f62e3866039d057308b3cca6557062264f95170a5e894c077a56e8e8afe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8a19f62e3866039d057308b3cca6557062264f95170a5e894c077a56e8e8afe", kill_on_drop: false }` [INFO] [stdout] e8a19f62e3866039d057308b3cca6557062264f95170a5e894c077a56e8e8afe [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fe73da310b1d2a677393548ec24133aaa7b4ed7cb9e7502f27502e5ca1bcd18d [INFO] running `Command { std: "docker" "start" "-a" "fe73da310b1d2a677393548ec24133aaa7b4ed7cb9e7502f27502e5ca1bcd18d", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-----^^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [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 1.02s [INFO] running `Command { std: "docker" "inspect" "fe73da310b1d2a677393548ec24133aaa7b4ed7cb9e7502f27502e5ca1bcd18d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe73da310b1d2a677393548ec24133aaa7b4ed7cb9e7502f27502e5ca1bcd18d", kill_on_drop: false }` [INFO] [stdout] fe73da310b1d2a677393548ec24133aaa7b4ed7cb9e7502f27502e5ca1bcd18d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 512b3f7f85496a4b599f91ed031edab7d1ea4b40211e32e94ae47dc1ed042b9a [INFO] running `Command { std: "docker" "start" "-a" "512b3f7f85496a4b599f91ed031edab7d1ea4b40211e32e94ae47dc1ed042b9a", 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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-----^^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [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] [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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-----^^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [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 test [unoptimized + debuginfo] target(s) in 0.44s [INFO] running `Command { std: "docker" "inspect" "512b3f7f85496a4b599f91ed031edab7d1ea4b40211e32e94ae47dc1ed042b9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "512b3f7f85496a4b599f91ed031edab7d1ea4b40211e32e94ae47dc1ed042b9a", kill_on_drop: false }` [INFO] [stdout] 512b3f7f85496a4b599f91ed031edab7d1ea4b40211e32e94ae47dc1ed042b9a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 76e9c58372c46ff05db761f0a40591dd4f20322da4497d08058e0a2170bb4415 [INFO] running `Command { std: "docker" "start" "-a" "76e9c58372c46ff05db761f0a40591dd4f20322da4497d08058e0a2170bb4415", 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] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-----^^ [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow later used here [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 [INFO] [stderr] [INFO] [stderr] warning: `my_little_tree` (lib) generated 1 warning [INFO] [stderr] warning: `my_little_tree` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/my_little_tree-752b8b63ce8652a4) [INFO] [stdout] [INFO] [stdout] running 17 tests [INFO] [stdout] test tests::delete_find ... ok [INFO] [stdout] test tests::delete_miss ... ok [INFO] [stdout] test tests::delete_node_both_l_same ... ok [INFO] [stdout] test tests::delete_node_both_r_diff ... ok [INFO] [stdout] test tests::delete_node_both_l_diff ... ok [INFO] [stdout] test tests::delete_node_l ... ok [INFO] [stdout] test tests::delete_node_both_r_same ... ok [INFO] [stdout] test tests::delete_node_none ... ok [INFO] [stdout] test tests::delete_node_r ... ok [INFO] [stdout] test tests::delete_root_both_diff ... ok [INFO] [stdout] test tests::delete_root_both_same ... 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::empty_tree ... ok [INFO] [stdout] test tests::insert_find ... ok [INFO] [stdout] test tests::iterate ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "76e9c58372c46ff05db761f0a40591dd4f20322da4497d08058e0a2170bb4415", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76e9c58372c46ff05db761f0a40591dd4f20322da4497d08058e0a2170bb4415", kill_on_drop: false }` [INFO] [stdout] 76e9c58372c46ff05db761f0a40591dd4f20322da4497d08058e0a2170bb4415