[INFO] fetching crate binary_tree_zy 0.1.2...
[INFO] testing binary_tree_zy-0.1.2 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate binary_tree_zy 0.1.2 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate binary_tree_zy 0.1.2 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binary_tree_zy 0.1.2
[INFO] finished tweaking crates.io crate binary_tree_zy 0.1.2
[INFO] tweaked toml for crates.io crate binary_tree_zy 0.1.2 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72f26317d22a96e6f13fa28767a5238e407bdd65949428f4c2e360d5ac3bc867
[INFO] running `Command { std: "docker" "start" "-a" "72f26317d22a96e6f13fa28767a5238e407bdd65949428f4c2e360d5ac3bc867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72f26317d22a96e6f13fa28767a5238e407bdd65949428f4c2e360d5ac3bc867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f26317d22a96e6f13fa28767a5238e407bdd65949428f4c2e360d5ac3bc867", kill_on_drop: false }`
[INFO] [stdout] 72f26317d22a96e6f13fa28767a5238e407bdd65949428f4c2e360d5ac3bc867
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 367903c576a4f135a7dac9a3ecb4ea6870bfa15a29e21a3d58ad39dab9c9ccb7
[INFO] running `Command { std: "docker" "start" "-a" "367903c576a4f135a7dac9a3ecb4ea6870bfa15a29e21a3d58ad39dab9c9ccb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling binary_tree_zy v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/lib.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         for i in 10..space{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print2DUtil` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn print2DUtil(&self, mut space: i64){
[INFO] [stdout]    |            ^^^^^^^^^^^ help: convert the identifier to snake case: `print2_dutil`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "367903c576a4f135a7dac9a3ecb4ea6870bfa15a29e21a3d58ad39dab9c9ccb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "367903c576a4f135a7dac9a3ecb4ea6870bfa15a29e21a3d58ad39dab9c9ccb7", kill_on_drop: false }`
[INFO] [stdout] 367903c576a4f135a7dac9a3ecb4ea6870bfa15a29e21a3d58ad39dab9c9ccb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41c3ae15a6042055af7dae950486e1c81f57115679e410b753592713d6099a0d
[INFO] running `Command { std: "docker" "start" "-a" "41c3ae15a6042055af7dae950486e1c81f57115679e410b753592713d6099a0d", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/lib.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         for i in 10..space{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling binary_tree_zy v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `print2DUtil` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn print2DUtil(&self, mut space: i64){
[INFO] [stdout]    |            ^^^^^^^^^^^ help: convert the identifier to snake case: `print2_dutil`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/lib.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         for i in 10..space{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print2DUtil` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn print2DUtil(&self, mut space: i64){
[INFO] [stdout]    |            ^^^^^^^^^^^ help: convert the identifier to snake case: `print2_dutil`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_print2DUtil` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn test_print2DUtil(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_print2_dutil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/binary_tree_zy-b1c68d34797ed0d1)
[INFO] running `Command { std: "docker" "inspect" "41c3ae15a6042055af7dae950486e1c81f57115679e410b753592713d6099a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c3ae15a6042055af7dae950486e1c81f57115679e410b753592713d6099a0d", kill_on_drop: false }`
[INFO] [stdout] 41c3ae15a6042055af7dae950486e1c81f57115679e410b753592713d6099a0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cae87d0bce88498e6627e4b301c750d07b310dd9f51fcf7edc23d4202cf2b9a6
[INFO] running `Command { std: "docker" "start" "-a" "cae87d0bce88498e6627e4b301c750d07b310dd9f51fcf7edc23d4202cf2b9a6", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         for i in 10..space{
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `print2DUtil` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:52:12
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn print2DUtil(&self, mut space: i64){
[INFO] [stderr]    |            ^^^^^^^^^^^ help: convert the identifier to snake case: `print2_dutil`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `binary_tree_zy` (lib) generated 2 warnings
[INFO] [stderr] warning: function `test_print2DUtil` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:99:8
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn test_print2DUtil(){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_print2_dutil`
[INFO] [stderr] 
[INFO] [stderr] warning: `binary_tree_zy` (lib test) generated 3 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/binary_tree_zy-b1c68d34797ed0d1)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::test_print2DUtil ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests binary_tree_zy
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cae87d0bce88498e6627e4b301c750d07b310dd9f51fcf7edc23d4202cf2b9a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cae87d0bce88498e6627e4b301c750d07b310dd9f51fcf7edc23d4202cf2b9a6", kill_on_drop: false }`
[INFO] [stdout] cae87d0bce88498e6627e4b301c750d07b310dd9f51fcf7edc23d4202cf2b9a6