[INFO] cloning repository https://github.com/tslilyai/rustyrb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tslilyai/rustyrb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftslilyai%2Frustyrb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftslilyai%2Frustyrb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5310109fba877afa137980dad4715e076b1e1124
[INFO] testing tslilyai/rustyrb against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftslilyai%2Frustyrb" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tslilyai/rustyrb on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tslilyai/rustyrb
[INFO] finished tweaking git repo https://github.com/tslilyai/rustyrb
[INFO] tweaked toml for git repo https://github.com/tslilyai/rustyrb written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/tslilyai/rustyrb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 814a94b2c3c7a7c04297539148204eae7ccd8aaa08a48e2dd759939744f3b224
[INFO] running `Command { std: "docker" "start" "-a" "814a94b2c3c7a7c04297539148204eae7ccd8aaa08a48e2dd759939744f3b224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "814a94b2c3c7a7c04297539148204eae7ccd8aaa08a48e2dd759939744f3b224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "814a94b2c3c7a7c04297539148204eae7ccd8aaa08a48e2dd759939744f3b224", kill_on_drop: false }`
[INFO] [stdout] 814a94b2c3c7a7c04297539148204eae7ccd8aaa08a48e2dd759939744f3b224
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59961d780f748d2e7530b3118f5b6da07dfee9fe4ac5d66b4432979e224089bb
[INFO] running `Command { std: "docker" "start" "-a" "59961d780f748d2e7530b3118f5b6da07dfee9fe4ac5d66b4432979e224089bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustyrbtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: private type `Node<K, V>` in public interface (error E0446)
[INFO] [stdout]    --> src/rbtree.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Node<K, V>` in public interface (error E0446)
[INFO] [stdout]    --> src/rbtree.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height`
[INFO] [stdout]    --> src/rbtree.rs:324:12
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn height(&self) -> isize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height_helper`
[INFO] [stdout]    --> src/rbtree.rs:327:8
[INFO] [stdout]     |
[INFO] [stdout] 327 |     fn height_helper(&self, xptr: &NodeptrT<K,V>) -> isize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "59961d780f748d2e7530b3118f5b6da07dfee9fe4ac5d66b4432979e224089bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59961d780f748d2e7530b3118f5b6da07dfee9fe4ac5d66b4432979e224089bb", kill_on_drop: false }`
[INFO] [stdout] 59961d780f748d2e7530b3118f5b6da07dfee9fe4ac5d66b4432979e224089bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bb065cbd0fd4188a3715a577772fc08e7ad167357021867b76eabda46c32057
[INFO] running `Command { std: "docker" "start" "-a" "4bb065cbd0fd4188a3715a577772fc08e7ad167357021867b76eabda46c32057", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustyrbtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: private type `Node<K, V>` in public interface (error E0446)
[INFO] [stdout]    --> src/rbtree.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Node<K, V>` in public interface (error E0446)
[INFO] [stdout]    --> src/rbtree.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height`
[INFO] [stdout]    --> src/rbtree.rs:324:12
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn height(&self) -> isize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height_helper`
[INFO] [stdout]    --> src/rbtree.rs:327:8
[INFO] [stdout]     |
[INFO] [stdout] 327 |     fn height_helper(&self, xptr: &NodeptrT<K,V>) -> isize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "4bb065cbd0fd4188a3715a577772fc08e7ad167357021867b76eabda46c32057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb065cbd0fd4188a3715a577772fc08e7ad167357021867b76eabda46c32057", kill_on_drop: false }`
[INFO] [stdout] 4bb065cbd0fd4188a3715a577772fc08e7ad167357021867b76eabda46c32057
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a140b3072b1fcb0dab7ec9b60b27d1d436e1464dc91f30653774dc58c1aedd7
[INFO] running `Command { std: "docker" "start" "-a" "1a140b3072b1fcb0dab7ec9b60b27d1d436e1464dc91f30653774dc58c1aedd7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: private type `Node<K, V>` in public interface (error E0446)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/rbtree.rs:164:5
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 164 |     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stdout] 
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `Node<K, V>` in public interface (error E0446)
[INFO] [stderr]    --> src/rbtree.rs:164:5
[INFO] [stderr]     |
[INFO] [stderr] 164 |     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `height`
[INFO] [stderr]    --> src/rbtree.rs:324:12
[INFO] [stderr]     |
[INFO] [stderr] 324 |     pub fn height(&self) -> isize {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `height_helper`
[INFO] [stderr]    --> src/rbtree.rs:327:8
[INFO] [stderr]     |
[INFO] [stderr] 327 |     fn height_helper(&self, xptr: &NodeptrT<K,V>) -> isize {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustyrbtree-35042a90b03f0ba3)
[INFO] running `Command { std: "docker" "inspect" "1a140b3072b1fcb0dab7ec9b60b27d1d436e1464dc91f30653774dc58c1aedd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a140b3072b1fcb0dab7ec9b60b27d1d436e1464dc91f30653774dc58c1aedd7", kill_on_drop: false }`
[INFO] [stdout] 1a140b3072b1fcb0dab7ec9b60b27d1d436e1464dc91f30653774dc58c1aedd7