[INFO] cloning repository https://github.com/1000teslas/tree_traversal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/1000teslas/tree_traversal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1000teslas%2Ftree_traversal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1000teslas%2Ftree_traversal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2558f69dd7e1e3e5041c010976e999b5c83cab7f
[INFO] testing 1000teslas/tree_traversal against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1000teslas%2Ftree_traversal" "/workspace/builds/worker-97/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-97/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/1000teslas/tree_traversal 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 git repo https://github.com/1000teslas/tree_traversal
[INFO] finished tweaking git repo https://github.com/1000teslas/tree_traversal
[INFO] tweaked toml for git repo https://github.com/1000teslas/tree_traversal written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate git repo https://github.com/1000teslas/tree_traversal already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] ec151ad38656603cdee7e31fa3d30d3a411d49043a5ae22f134f1e725541d8fb
[INFO] running `Command { std: "docker" "start" "-a" "ec151ad38656603cdee7e31fa3d30d3a411d49043a5ae22f134f1e725541d8fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec151ad38656603cdee7e31fa3d30d3a411d49043a5ae22f134f1e725541d8fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec151ad38656603cdee7e31fa3d30d3a411d49043a5ae22f134f1e725541d8fb", kill_on_drop: false }`
[INFO] [stdout] ec151ad38656603cdee7e31fa3d30d3a411d49043a5ae22f134f1e725541d8fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] e7c5bd0dc0f8c03b93b7e41c41f9958c929f7e63b7963135b5059ee83d1eb470
[INFO] running `Command { std: "docker" "start" "-a" "e7c5bd0dc0f8c03b93b7e41c41f9958c929f7e63b7963135b5059ee83d1eb470", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling tree_traversal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.23s
[INFO] running `Command { std: "docker" "inspect" "e7c5bd0dc0f8c03b93b7e41c41f9958c929f7e63b7963135b5059ee83d1eb470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7c5bd0dc0f8c03b93b7e41c41f9958c929f7e63b7963135b5059ee83d1eb470", kill_on_drop: false }`
[INFO] [stdout] e7c5bd0dc0f8c03b93b7e41c41f9958c929f7e63b7963135b5059ee83d1eb470
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] e20a65b5ede4cbeb469a5712da6da0330fc31b879d4b9f501ceaca636a897984
[INFO] running `Command { std: "docker" "start" "-a" "e20a65b5ede4cbeb469a5712da6da0330fc31b879d4b9f501ceaca636a897984", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]    Compiling tree_traversal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 28.64s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_traversal-20c52259244d6bad)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/tree_traversal-fb31dfe1d888d516)
[INFO] running `Command { std: "docker" "inspect" "e20a65b5ede4cbeb469a5712da6da0330fc31b879d4b9f501ceaca636a897984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e20a65b5ede4cbeb469a5712da6da0330fc31b879d4b9f501ceaca636a897984", kill_on_drop: false }`
[INFO] [stdout] e20a65b5ede4cbeb469a5712da6da0330fc31b879d4b9f501ceaca636a897984
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] e721e555814782f439bc17d9a841c5f1856225e294c0f7fc4eafe8f6f581feb3
[INFO] running `Command { std: "docker" "start" "-a" "e721e555814782f439bc17d9a841c5f1856225e294c0f7fc4eafe8f6f581feb3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.92s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_traversal-20c52259244d6bad)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test::test_1 ... ok
[INFO] [stdout] test test::test_3 ... ok
[INFO] [stdout] test test::test_2 ... ok
[INFO] [stdout] test test::test_4 ... ok
[INFO] [stdout] test test::test_bf_traverse ... ok
[INFO] [stdout] test test::test_traverse ... ok
[INFO] [stdout] test test::test_stack_to_queue ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tree_traversal-fb31dfe1d888d516)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.76s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_traversal
[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] [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" "e721e555814782f439bc17d9a841c5f1856225e294c0f7fc4eafe8f6f581feb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e721e555814782f439bc17d9a841c5f1856225e294c0f7fc4eafe8f6f581feb3", kill_on_drop: false }`
[INFO] [stdout] e721e555814782f439bc17d9a841c5f1856225e294c0f7fc4eafe8f6f581feb3