[INFO] updating cached 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" "-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] a10a550dee688662d35104da8ff6d7f3c55a9d31
[INFO] testing tada3/binary-tree-rust against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftada3%2Fbinary-tree-rust" "/workspace/builds/worker-53/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-53/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tada3/binary-tree-rust on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-53/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6873c83fb1cdbd437ca75a9ec4daa1ce950e72273bcacd4159b35df714abf47d
[INFO] running `Command { std: "docker" "start" "-a" "6873c83fb1cdbd437ca75a9ec4daa1ce950e72273bcacd4159b35df714abf47d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6873c83fb1cdbd437ca75a9ec4daa1ce950e72273bcacd4159b35df714abf47d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6873c83fb1cdbd437ca75a9ec4daa1ce950e72273bcacd4159b35df714abf47d", kill_on_drop: false }`
[INFO] [stdout] 6873c83fb1cdbd437ca75a9ec4daa1ce950e72273bcacd4159b35df714abf47d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0a2710de8d4347b29bfc7f9b211866036aa4f3891e68fb81b4b6065a1f07671
[INFO] running `Command { std: "docker" "start" "-a" "c0a2710de8d4347b29bfc7f9b211866036aa4f3891e68fb81b4b6065a1f07671", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 13.10s
[INFO] running `Command { std: "docker" "inspect" "c0a2710de8d4347b29bfc7f9b211866036aa4f3891e68fb81b4b6065a1f07671", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a2710de8d4347b29bfc7f9b211866036aa4f3891e68fb81b4b6065a1f07671", kill_on_drop: false }`
[INFO] [stdout] c0a2710de8d4347b29bfc7f9b211866036aa4f3891e68fb81b4b6065a1f07671
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca6dedc861aa6f85273c1dc3dc68202e33be42ae41d08bd6ade0dd5fc4d14b3d
[INFO] running `Command { std: "docker" "start" "-a" "ca6dedc861aa6f85273c1dc3dc68202e33be42ae41d08bd6ade0dd5fc4d14b3d", 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 test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "ca6dedc861aa6f85273c1dc3dc68202e33be42ae41d08bd6ade0dd5fc4d14b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca6dedc861aa6f85273c1dc3dc68202e33be42ae41d08bd6ade0dd5fc4d14b3d", kill_on_drop: false }`
[INFO] [stdout] ca6dedc861aa6f85273c1dc3dc68202e33be42ae41d08bd6ade0dd5fc4d14b3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b5dd411d611e34d9d136414914d40a47fe0fd9fb95c0399ecba94c2e4db1bc56
[INFO] running `Command { std: "docker" "start" "-a" "b5dd411d611e34d9d136414914d40a47fe0fd9fb95c0399ecba94c2e4db1bc56", 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: `btree` (bin "btree" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/btree-8cacdd3e8afd2aa0)
[INFO] running `Command { std: "docker" "inspect" "b5dd411d611e34d9d136414914d40a47fe0fd9fb95c0399ecba94c2e4db1bc56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5dd411d611e34d9d136414914d40a47fe0fd9fb95c0399ecba94c2e4db1bc56", kill_on_drop: false }`
[INFO] [stdout] b5dd411d611e34d9d136414914d40a47fe0fd9fb95c0399ecba94c2e4db1bc56