[INFO] cloning repository https://github.com/stevenmsl/rust_bt_zigzag_level_order_103
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stevenmsl/rust_bt_zigzag_level_order_103" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_bt_zigzag_level_order_103", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevenmsl%2Frust_bt_zigzag_level_order_103'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2289d8d6835d1c70d28e77116eeb9825d74570fb
[INFO] testing stevenmsl/rust_bt_zigzag_level_order_103 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%2Fstevenmsl%2Frust_bt_zigzag_level_order_103" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stevenmsl/rust_bt_zigzag_level_order_103 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/stevenmsl/rust_bt_zigzag_level_order_103
[INFO] finished tweaking git repo https://github.com/stevenmsl/rust_bt_zigzag_level_order_103
[INFO] tweaked toml for git repo https://github.com/stevenmsl/rust_bt_zigzag_level_order_103 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/stevenmsl/rust_bt_zigzag_level_order_103 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] f57905df4a43899904ff7ae033c121e97343e1648a889c8ca0db78b9560c58a8
[INFO] running `Command { std: "docker" "start" "-a" "f57905df4a43899904ff7ae033c121e97343e1648a889c8ca0db78b9560c58a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f57905df4a43899904ff7ae033c121e97343e1648a889c8ca0db78b9560c58a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f57905df4a43899904ff7ae033c121e97343e1648a889c8ca0db78b9560c58a8", kill_on_drop: false }`
[INFO] [stdout] f57905df4a43899904ff7ae033c121e97343e1648a889c8ca0db78b9560c58a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 5d24248932b2a570d4ad971e28fc016d789fa4f63c739f3a0645622738281cfa
[INFO] running `Command { std: "docker" "start" "-a" "5d24248932b2a570d4ad971e28fc016d789fa4f63c739f3a0645622738281cfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_bt_zigzag_level_order_103 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "5d24248932b2a570d4ad971e28fc016d789fa4f63c739f3a0645622738281cfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d24248932b2a570d4ad971e28fc016d789fa4f63c739f3a0645622738281cfa", kill_on_drop: false }`
[INFO] [stdout] 5d24248932b2a570d4ad971e28fc016d789fa4f63c739f3a0645622738281cfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 85720f1e6dd50cd21faa3a8fba359b0f62db22f58846cfe961c37514e218d70e
[INFO] running `Command { std: "docker" "start" "-a" "85720f1e6dd50cd21faa3a8fba359b0f62db22f58846cfe961c37514e218d70e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_bt_zigzag_level_order_103 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_bt_zigzag_level_order_103-475efcf509c890a9)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_bt_zigzag_level_order_103-4faaf8a6af3d7f83)
[INFO] running `Command { std: "docker" "inspect" "85720f1e6dd50cd21faa3a8fba359b0f62db22f58846cfe961c37514e218d70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85720f1e6dd50cd21faa3a8fba359b0f62db22f58846cfe961c37514e218d70e", kill_on_drop: false }`
[INFO] [stdout] 85720f1e6dd50cd21faa3a8fba359b0f62db22f58846cfe961c37514e218d70e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 4e1891118bb9f5b9cce8f6d02bda64f7e490dcda30bb3bb5ae47b645e37e4d7f
[INFO] running `Command { std: "docker" "start" "-a" "4e1891118bb9f5b9cce8f6d02bda64f7e490dcda30bb3bb5ae47b645e37e4d7f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_bt_zigzag_level_order_103-475efcf509c890a9)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::sample_1 ... ok
[INFO] [stdout] test tests::sample_2 ... ok
[INFO] [stdout] test tests::sample_3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_bt_zigzag_level_order_103-4faaf8a6af3d7f83)
[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] [stderr]    Doc-tests rust_bt_zigzag_level_order_103
[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" "4e1891118bb9f5b9cce8f6d02bda64f7e490dcda30bb3bb5ae47b645e37e4d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e1891118bb9f5b9cce8f6d02bda64f7e490dcda30bb3bb5ae47b645e37e4d7f", kill_on_drop: false }`
[INFO] [stdout] 4e1891118bb9f5b9cce8f6d02bda64f7e490dcda30bb3bb5ae47b645e37e4d7f