[INFO] cloning repository https://github.com/GabeVillalobos/rust_rb_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GabeVillalobos/rust_rb_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGabeVillalobos%2Frust_rb_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGabeVillalobos%2Frust_rb_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e784daa498867762590ae2996bb2f6894e62918
[INFO] testing GabeVillalobos/rust_rb_tree against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGabeVillalobos%2Frust_rb_tree" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GabeVillalobos/rust_rb_tree on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GabeVillalobos/rust_rb_tree
[INFO] finished tweaking git repo https://github.com/GabeVillalobos/rust_rb_tree
[INFO] tweaked toml for git repo https://github.com/GabeVillalobos/rust_rb_tree written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0264a9e8b2336a0399e784d25b995d59acbc1045f5c7ddff82743d812f3c3a3e
[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" "0264a9e8b2336a0399e784d25b995d59acbc1045f5c7ddff82743d812f3c3a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0264a9e8b2336a0399e784d25b995d59acbc1045f5c7ddff82743d812f3c3a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0264a9e8b2336a0399e784d25b995d59acbc1045f5c7ddff82743d812f3c3a3e", kill_on_drop: false }`
[INFO] [stdout] 0264a9e8b2336a0399e784d25b995d59acbc1045f5c7ddff82743d812f3c3a3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7297861b488cb02ff5b6a1824d3ac5add90f868eef835f8b5efd892400d47a22
[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" "7297861b488cb02ff5b6a1824d3ac5add90f868eef835f8b5efd892400d47a22", kill_on_drop: false }`
[INFO] [stderr]    Compiling trees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/red_black_tree.rs:245:30
[INFO] [stdout]     |
[INFO] [stdout] 245 |     pub fn remove(&mut self, item: &T) -> Result<(), NodeNotFoundErr> {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7297861b488cb02ff5b6a1824d3ac5add90f868eef835f8b5efd892400d47a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7297861b488cb02ff5b6a1824d3ac5add90f868eef835f8b5efd892400d47a22", kill_on_drop: false }`
[INFO] [stdout] 7297861b488cb02ff5b6a1824d3ac5add90f868eef835f8b5efd892400d47a22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dc8569af2f786ca9610e92b41ba16ce94de3013febd44adf2bd59d335461c94
[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" "2dc8569af2f786ca9610e92b41ba16ce94de3013febd44adf2bd59d335461c94", kill_on_drop: false }`
[INFO] [stderr]    Compiling trees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/red_black_tree.rs:245:30
[INFO] [stdout]     |
[INFO] [stdout] 245 |     pub fn remove(&mut self, item: &T) -> Result<(), NodeNotFoundErr> {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/red_black_tree.rs:245:30
[INFO] [stdout]     |
[INFO] [stdout] 245 |     pub fn remove(&mut self, item: &T) -> Result<(), NodeNotFoundErr> {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "2dc8569af2f786ca9610e92b41ba16ce94de3013febd44adf2bd59d335461c94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dc8569af2f786ca9610e92b41ba16ce94de3013febd44adf2bd59d335461c94", kill_on_drop: false }`
[INFO] [stdout] 2dc8569af2f786ca9610e92b41ba16ce94de3013febd44adf2bd59d335461c94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c6842e0d475e81f772b7285dc200cad51f6da3ebf08caa5baa35d8f7138a78e4
[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" "c6842e0d475e81f772b7285dc200cad51f6da3ebf08caa5baa35d8f7138a78e4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]    --> src/red_black_tree.rs:245:30
[INFO] [stderr]     |
[INFO] [stderr] 245 |     pub fn remove(&mut self, item: &T) -> Result<(), NodeNotFoundErr> {
[INFO] [stderr]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]    --> src/red_black_tree.rs:245:30
[INFO] [stderr]     |
[INFO] [stderr] 245 |     pub fn remove(&mut self, item: &T) -> Result<(), NodeNotFoundErr> {
[INFO] [stderr]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/trees-62f197c9d4a540b5
[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] [stderr]      Running /opt/rustwide/target/debug/deps/bst_tree_tests-b3749ab39ca5aae0
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test bfs_traversal ... ok
[INFO] [stdout] test bst_insertion ... ok
[INFO] [stdout] test dfs_traversal ... ok
[INFO] [stdout] test remove_node ... ok
[INFO] [stdout] test find_items ... ok
[INFO] [stdout] test remove_single_root ... ok
[INFO] [stdout] test test_insert_root_node ... ok
[INFO] [stdout] test test_instantiation ... ok
[INFO] [stdout] test test_get_size_after_insert ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rb_tree_tests-a3ada20a1b06e204
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test bfs_traversal ... ok
[INFO] [stdout] test bst_insertion ... ok
[INFO] [stdout] test left_subtree_with_root_rotation ... ok
[INFO] [stdout] test test_insert_root_node ... ok
[INFO] [stdout] test test_instantiation ... ok
[INFO] [stdout] test right_subtree_with_root_rotation ... ok
[INFO] [stdout] test test_get_size_after_insert ... ok
[INFO] [stdout] test find_items ... ok
[INFO] [stdout] test right_subtree_rl_case ... ok
[INFO] [stdout] test dfs_traversal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests trees
[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" "c6842e0d475e81f772b7285dc200cad51f6da3ebf08caa5baa35d8f7138a78e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6842e0d475e81f772b7285dc200cad51f6da3ebf08caa5baa35d8f7138a78e4", kill_on_drop: false }`
[INFO] [stdout] c6842e0d475e81f772b7285dc200cad51f6da3ebf08caa5baa35d8f7138a78e4
