[INFO] fetching crate maomi-tree 0.5.0...
[INFO] testing maomi-tree-0.5.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate maomi-tree 0.5.0 into /workspace/builds/worker-1-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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate maomi-tree 0.5.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a710e9061e197d72faa1bf2a9852ccf39699d0569b8b69d849e5a2abc6c0cbb
[INFO] running `Command { std: "docker" "start" "-a" "0a710e9061e197d72faa1bf2a9852ccf39699d0569b8b69d849e5a2abc6c0cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a710e9061e197d72faa1bf2a9852ccf39699d0569b8b69d849e5a2abc6c0cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a710e9061e197d72faa1bf2a9852ccf39699d0569b8b69d849e5a2abc6c0cbb", kill_on_drop: false }`
[INFO] [stdout] 0a710e9061e197d72faa1bf2a9852ccf39699d0569b8b69d849e5a2abc6c0cbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1aaca375d2194bbba23becd3c19217fef8fed59c4bb9793763fd69b81736dd78
[INFO] running `Command { std: "docker" "start" "-a" "1aaca375d2194bbba23becd3c19217fef8fed59c4bb9793763fd69b81736dd78", 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 0.21s
[INFO] running `Command { std: "docker" "inspect" "1aaca375d2194bbba23becd3c19217fef8fed59c4bb9793763fd69b81736dd78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aaca375d2194bbba23becd3c19217fef8fed59c4bb9793763fd69b81736dd78", kill_on_drop: false }`
[INFO] [stdout] 1aaca375d2194bbba23becd3c19217fef8fed59c4bb9793763fd69b81736dd78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de4f5952eddcb3a093daa29ee76675342b42ce3f147d2466f6f562567103e341
[INFO] running `Command { std: "docker" "start" "-a" "de4f5952eddcb3a093daa29ee76675342b42ce3f147d2466f6f562567103e341", 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 0.47s
[INFO] running `Command { std: "docker" "inspect" "de4f5952eddcb3a093daa29ee76675342b42ce3f147d2466f6f562567103e341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4f5952eddcb3a093daa29ee76675342b42ce3f147d2466f6f562567103e341", kill_on_drop: false }`
[INFO] [stdout] de4f5952eddcb3a093daa29ee76675342b42ce3f147d2466f6f562567103e341
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43482c69c1a17fed2c7c7a61fb17830d3fd327f1673ccdd59a217e20935e54a4
[INFO] running `Command { std: "docker" "start" "-a" "43482c69c1a17fed2c7c7a61fb17830d3fd327f1673ccdd59a217e20935e54a4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/maomi_tree-cf7301013e758ae6)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test mem::test::leak ... ok
[INFO] [stdout] test mem::test::reuse ... ok
[INFO] [stdout] test test::append ... ok
[INFO] [stdout] test test::insert ... ok
[INFO] [stdout] test test::detach ... ok
[INFO] [stderr]    Doc-tests maomi_tree
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 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" "43482c69c1a17fed2c7c7a61fb17830d3fd327f1673ccdd59a217e20935e54a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43482c69c1a17fed2c7c7a61fb17830d3fd327f1673ccdd59a217e20935e54a4", kill_on_drop: false }`
[INFO] [stdout] 43482c69c1a17fed2c7c7a61fb17830d3fd327f1673ccdd59a217e20935e54a4