[INFO] fetching crate maomi-tree 0.5.0...
[INFO] testing maomi-tree-0.5.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate maomi-tree 0.5.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate maomi-tree 0.5.0
[INFO] finished tweaking crates.io crate maomi-tree 0.5.0
[INFO] tweaked toml for crates.io crate maomi-tree 0.5.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate maomi-tree 0.5.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebcdc95779d12ceaf12925e9a8f2f79104b7db3639f9c5f429dd68d78cb81928
[INFO] running `Command { std: "docker" "start" "-a" "ebcdc95779d12ceaf12925e9a8f2f79104b7db3639f9c5f429dd68d78cb81928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebcdc95779d12ceaf12925e9a8f2f79104b7db3639f9c5f429dd68d78cb81928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebcdc95779d12ceaf12925e9a8f2f79104b7db3639f9c5f429dd68d78cb81928", kill_on_drop: false }`
[INFO] [stdout] ebcdc95779d12ceaf12925e9a8f2f79104b7db3639f9c5f429dd68d78cb81928
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7c3fb2f76ed8c023030c177ad7fe085841f6a58a2f7ff0e6c3d834f17a81881
[INFO] running `Command { std: "docker" "start" "-a" "a7c3fb2f76ed8c023030c177ad7fe085841f6a58a2f7ff0e6c3d834f17a81881", kill_on_drop: false }`
[INFO] [stderr]    Compiling maomi-tree v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "a7c3fb2f76ed8c023030c177ad7fe085841f6a58a2f7ff0e6c3d834f17a81881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c3fb2f76ed8c023030c177ad7fe085841f6a58a2f7ff0e6c3d834f17a81881", kill_on_drop: false }`
[INFO] [stdout] a7c3fb2f76ed8c023030c177ad7fe085841f6a58a2f7ff0e6c3d834f17a81881
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d59f53183b893bfb083906fc6a6060cce02175b5604890eda8620951edeb3e51
[INFO] running `Command { std: "docker" "start" "-a" "d59f53183b893bfb083906fc6a6060cce02175b5604890eda8620951edeb3e51", kill_on_drop: false }`
[INFO] [stderr]    Compiling maomi-tree v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "d59f53183b893bfb083906fc6a6060cce02175b5604890eda8620951edeb3e51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d59f53183b893bfb083906fc6a6060cce02175b5604890eda8620951edeb3e51", kill_on_drop: false }`
[INFO] [stdout] d59f53183b893bfb083906fc6a6060cce02175b5604890eda8620951edeb3e51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f88632a76dac5256256bf7c913b61ed578f0187b2281780dc15e6861f479cb22
[INFO] running `Command { std: "docker" "start" "-a" "f88632a76dac5256256bf7c913b61ed578f0187b2281780dc15e6861f479cb22", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/maomi_tree-ab3971384b72502d)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test mem::test::leak ... ok
[INFO] [stdout] test test::append ... ok
[INFO] [stdout] test test::insert ... ok
[INFO] [stdout] test mem::test::reuse ... ok
[INFO] [stderr]    Doc-tests maomi_tree
[INFO] [stdout] test test::detach ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[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" "f88632a76dac5256256bf7c913b61ed578f0187b2281780dc15e6861f479cb22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f88632a76dac5256256bf7c913b61ed578f0187b2281780dc15e6861f479cb22", kill_on_drop: false }`
[INFO] [stdout] f88632a76dac5256256bf7c913b61ed578f0187b2281780dc15e6861f479cb22