[INFO] fetching crate rctree 0.4.0...
[INFO] testing rctree-0.4.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate rctree 0.4.0 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate rctree 0.4.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rctree 0.4.0
[INFO] finished tweaking crates.io crate rctree 0.4.0
[INFO] tweaked toml for crates.io crate rctree 0.4.0 written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2201100cd38fd5764bffb991103494418b7e9cd89dbdac09c02b7a0bff5a0d0
[INFO] running `Command { std: "docker" "start" "-a" "e2201100cd38fd5764bffb991103494418b7e9cd89dbdac09c02b7a0bff5a0d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2201100cd38fd5764bffb991103494418b7e9cd89dbdac09c02b7a0bff5a0d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2201100cd38fd5764bffb991103494418b7e9cd89dbdac09c02b7a0bff5a0d0", kill_on_drop: false }`
[INFO] [stdout] e2201100cd38fd5764bffb991103494418b7e9cd89dbdac09c02b7a0bff5a0d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5910f5b42d7c98f89ca19d8e7d877631462a441aae6c9427b085a0459b841f4
[INFO] running `Command { std: "docker" "start" "-a" "d5910f5b42d7c98f89ca19d8e7d877631462a441aae6c9427b085a0459b841f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rctree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "d5910f5b42d7c98f89ca19d8e7d877631462a441aae6c9427b085a0459b841f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5910f5b42d7c98f89ca19d8e7d877631462a441aae6c9427b085a0459b841f4", kill_on_drop: false }`
[INFO] [stdout] d5910f5b42d7c98f89ca19d8e7d877631462a441aae6c9427b085a0459b841f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb194f114a7c717289f58813d1fcb2b4c7023288e0193b35da91b43d8d0d60be
[INFO] running `Command { std: "docker" "start" "-a" "cb194f114a7c717289f58813d1fcb2b4c7023288e0193b35da91b43d8d0d60be", kill_on_drop: false }`
[INFO] [stderr]    Compiling rctree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "cb194f114a7c717289f58813d1fcb2b4c7023288e0193b35da91b43d8d0d60be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb194f114a7c717289f58813d1fcb2b4c7023288e0193b35da91b43d8d0d60be", kill_on_drop: false }`
[INFO] [stdout] cb194f114a7c717289f58813d1fcb2b4c7023288e0193b35da91b43d8d0d60be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e4d9ad815df3b0b82dbcb3ece4ee83fbc72257a992e0ca5d8fe7eea4fce5f47a
[INFO] running `Command { std: "docker" "start" "-a" "e4d9ad815df3b0b82dbcb3ece4ee83fbc72257a992e0ca5d8fe7eea4fce5f47a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rctree-04a58d09600f7117)
[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]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-964b295059e66844)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test children_2 ... ok
[INFO] [stdout] test children_1 ... ok
[INFO] [stdout] test it_works ... ok
[INFO] [stdout] test make_deep_copy_1 ... ok
[INFO] [stdout] test traverse_1 ... ok
[INFO] [stdout] test weak_2 ... ok
[INFO] [stdout] test make_copy_1 ... ok
[INFO] [stdout] test weak_1 ... ok
[INFO] [stdout] test traverse_2 ... ok
[INFO] [stdout] test append_1 - should panic ... ok
[INFO] [stdout] test insert_after_1 - should panic ... ok
[INFO] [stdout] test insert_before_1 - should panic ... ok
[INFO] [stdout] test iter_1 - should panic ... ok
[INFO] [stdout] test prepend_1 - should panic ... ok
[INFO] [stdout] test stack_overflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.93s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rctree
[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" "e4d9ad815df3b0b82dbcb3ece4ee83fbc72257a992e0ca5d8fe7eea4fce5f47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d9ad815df3b0b82dbcb3ece4ee83fbc72257a992e0ca5d8fe7eea4fce5f47a", kill_on_drop: false }`
[INFO] [stdout] e4d9ad815df3b0b82dbcb3ece4ee83fbc72257a992e0ca5d8fe7eea4fce5f47a