[INFO] cloning repository https://github.com/tada3/binary-tree-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tada3/binary-tree-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftada3%2Fbinary-tree-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftada3%2Fbinary-tree-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a10a550dee688662d35104da8ff6d7f3c55a9d31
[INFO] testing tada3/binary-tree-rust against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftada3%2Fbinary-tree-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tada3/binary-tree-rust on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tada3/binary-tree-rust
[INFO] finished tweaking git repo https://github.com/tada3/binary-tree-rust
[INFO] tweaked toml for git repo https://github.com/tada3/binary-tree-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/tada3/binary-tree-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a796f0e79ac2e5e2d79bb330c02b3f3b973806923453cdb6700937c7d16b84ae
[INFO] running `Command { std: "docker" "start" "-a" "a796f0e79ac2e5e2d79bb330c02b3f3b973806923453cdb6700937c7d16b84ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a796f0e79ac2e5e2d79bb330c02b3f3b973806923453cdb6700937c7d16b84ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a796f0e79ac2e5e2d79bb330c02b3f3b973806923453cdb6700937c7d16b84ae", kill_on_drop: false }`
[INFO] [stdout] a796f0e79ac2e5e2d79bb330c02b3f3b973806923453cdb6700937c7d16b84ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 943623c1af91e3d9c215d72cac93ee04887a68c648e0a437de71952f5ab63d4e
[INFO] running `Command { std: "docker" "start" "-a" "943623c1af91e3d9c215d72cac93ee04887a68c648e0a437de71952f5ab63d4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling btree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `newNode` should have a snake case name
[INFO] [stdout]   --> src/main.rs:97:21
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 let newNode = Node::new(x);
[INFO] [stdout]    |                     ^^^^^^^ help: convert the identifier to snake case: `new_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `boxedNode` should have a snake case name
[INFO] [stdout]   --> src/main.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let boxedNode = Some(Box::new(newNode));
[INFO] [stdout]    |                     ^^^^^^^^^ help: convert the identifier to snake case: `boxed_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "943623c1af91e3d9c215d72cac93ee04887a68c648e0a437de71952f5ab63d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "943623c1af91e3d9c215d72cac93ee04887a68c648e0a437de71952f5ab63d4e", kill_on_drop: false }`
[INFO] [stdout] 943623c1af91e3d9c215d72cac93ee04887a68c648e0a437de71952f5ab63d4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a231ca89a793e5d0e4cd621d5bb7ae49ff4d59776b21c9b48cfd20a4d01ccf1
[INFO] running `Command { std: "docker" "start" "-a" "2a231ca89a793e5d0e4cd621d5bb7ae49ff4d59776b21c9b48cfd20a4d01ccf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling btree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `newNode` should have a snake case name
[INFO] [stdout]   --> src/main.rs:97:21
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 let newNode = Node::new(x);
[INFO] [stdout]    |                     ^^^^^^^ help: convert the identifier to snake case: `new_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `boxedNode` should have a snake case name
[INFO] [stdout]   --> src/main.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                 let boxedNode = Some(Box::new(newNode));
[INFO] [stdout]    |                     ^^^^^^^^^ help: convert the identifier to snake case: `boxed_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2a231ca89a793e5d0e4cd621d5bb7ae49ff4d59776b21c9b48cfd20a4d01ccf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a231ca89a793e5d0e4cd621d5bb7ae49ff4d59776b21c9b48cfd20a4d01ccf1", kill_on_drop: false }`
[INFO] [stdout] 2a231ca89a793e5d0e4cd621d5bb7ae49ff4d59776b21c9b48cfd20a4d01ccf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9c293d47ad6f849cce39cd89c63281af74ef6b949b0c500f6759d5ad1cc2cbc6
[INFO] running `Command { std: "docker" "start" "-a" "9c293d47ad6f849cce39cd89c63281af74ef6b949b0c500f6759d5ad1cc2cbc6", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable `newNode` should have a snake case name
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:97:21
[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] 97 |                 let newNode = Node::new(x);
[INFO] [stdout] 
[INFO] [stderr]    |                     ^^^^^^^ help: convert the identifier to snake case: `new_node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `boxedNode` should have a snake case name
[INFO] [stderr]   --> src/main.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let boxedNode = Some(Box::new(newNode));
[INFO] [stderr]    |                     ^^^^^^^^^ help: convert the identifier to snake case: `boxed_node`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/btree-80c154d880441d5d)
[INFO] running `Command { std: "docker" "inspect" "9c293d47ad6f849cce39cd89c63281af74ef6b949b0c500f6759d5ad1cc2cbc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c293d47ad6f849cce39cd89c63281af74ef6b949b0c500f6759d5ad1cc2cbc6", kill_on_drop: false }`
[INFO] [stdout] 9c293d47ad6f849cce39cd89c63281af74ef6b949b0c500f6759d5ad1cc2cbc6