[INFO] cloning repository https://github.com/ChakshuGupta/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/ChakshuGupta/binary-tree-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChakshuGupta%2Fbinary-tree-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChakshuGupta%2Fbinary-tree-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0d915d933c699538d44a3f24ab5f5c2b7630f73
[INFO] testing ChakshuGupta/binary-tree-rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChakshuGupta%2Fbinary-tree-rust" "/workspace/builds/worker-70/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-70/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ChakshuGupta/binary-tree-rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ChakshuGupta/binary-tree-rust
[INFO] finished tweaking git repo https://github.com/ChakshuGupta/binary-tree-rust
[INFO] tweaked toml for git repo https://github.com/ChakshuGupta/binary-tree-rust written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] crate git repo https://github.com/ChakshuGupta/binary-tree-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e04825f4192f3fc9e260b65d9099d602e9987e90da25e333f8d4d54c8d96d961
[INFO] running `Command { std: "docker" "start" "-a" "e04825f4192f3fc9e260b65d9099d602e9987e90da25e333f8d4d54c8d96d961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e04825f4192f3fc9e260b65d9099d602e9987e90da25e333f8d4d54c8d96d961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e04825f4192f3fc9e260b65d9099d602e9987e90da25e333f8d4d54c8d96d961", kill_on_drop: false }`
[INFO] [stdout] e04825f4192f3fc9e260b65d9099d602e9987e90da25e333f8d4d54c8d96d961
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5034733d9bbd41e4eebd0405388261e4810d20137f79bfff048eb96d14bb1315
[INFO] running `Command { std: "docker" "start" "-a" "5034733d9bbd41e4eebd0405388261e4810d20137f79bfff048eb96d14bb1315", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustsint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/tree.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `age`
[INFO] [stdout]    --> src/tree.rs:174:29
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn erase(&mut self, age: i32, name: String) -> bool {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/tree.rs:174:39
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn erase(&mut self, age: i32, name: String) -> bool {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.59s
[INFO] running `Command { std: "docker" "inspect" "5034733d9bbd41e4eebd0405388261e4810d20137f79bfff048eb96d14bb1315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5034733d9bbd41e4eebd0405388261e4810d20137f79bfff048eb96d14bb1315", kill_on_drop: false }`
[INFO] [stdout] 5034733d9bbd41e4eebd0405388261e4810d20137f79bfff048eb96d14bb1315
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26b3b9af4ada35315f8caabb5580d75fb30cc801be1bacb569f35d95cd62019d
[INFO] running `Command { std: "docker" "start" "-a" "26b3b9af4ada35315f8caabb5580d75fb30cc801be1bacb569f35d95cd62019d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustsint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/tree.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `age`
[INFO] [stdout]    --> src/tree.rs:174:29
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn erase(&mut self, age: i32, name: String) -> bool {
[INFO] [stdout]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/tree.rs:174:39
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn erase(&mut self, age: i32, name: String) -> bool {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "26b3b9af4ada35315f8caabb5580d75fb30cc801be1bacb569f35d95cd62019d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26b3b9af4ada35315f8caabb5580d75fb30cc801be1bacb569f35d95cd62019d", kill_on_drop: false }`
[INFO] [stdout] 26b3b9af4ada35315f8caabb5580d75fb30cc801be1bacb569f35d95cd62019d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b8580ff6f4c66eeac961e0fd273e45259d88e9c11154071c458564505bf8bf8
[INFO] running `Command { std: "docker" "start" "-a" "2b8580ff6f4c66eeac961e0fd273e45259d88e9c11154071c458564505bf8bf8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stdout] 
[INFO] [stderr]  --> src/tree.rs:3:5
[INFO] [stdout] running 3 tests
[INFO] [stderr]   |
[INFO] [stdout] test tree::test::insert ... ok
[INFO] [stderr] 3 | use std::mem;
[INFO] [stdout] test tree::test::print ... ok
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stdout] test tree::test::reset ... ok
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `age`
[INFO] [stderr]    --> src/tree.rs:174:29
[INFO] [stderr]     |
[INFO] [stderr] 174 |     pub fn erase(&mut self, age: i32, name: String) -> bool {
[INFO] [stderr]     |                             ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/tree.rs:174:39
[INFO] [stderr]     |
[INFO] [stderr] 174 |     pub fn erase(&mut self, age: i32, name: String) -> bool {
[INFO] [stderr]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: `rustsint` (bin "rustsint" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 31.57s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustsint-ad0124485bc90565)
[INFO] running `Command { std: "docker" "inspect" "2b8580ff6f4c66eeac961e0fd273e45259d88e9c11154071c458564505bf8bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b8580ff6f4c66eeac961e0fd273e45259d88e9c11154071c458564505bf8bf8", kill_on_drop: false }`
[INFO] [stdout] 2b8580ff6f4c66eeac961e0fd273e45259d88e9c11154071c458564505bf8bf8