[INFO] cloning repository https://github.com/polo-language/btree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/polo-language/btree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolo-language%2Fbtree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolo-language%2Fbtree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba28f1212a2314dc7def9c084472943140ae6046
[INFO] testing polo-language/btree against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolo-language%2Fbtree" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/polo-language/btree on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/polo-language/btree
[INFO] finished tweaking git repo https://github.com/polo-language/btree
[INFO] tweaked toml for git repo https://github.com/polo-language/btree written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/polo-language/btree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 499810aceca712beb7bfed39b19a4761cfb96dd5fc4b83cb9e8cb99e17d945fc
[INFO] running `Command { std: "docker" "start" "-a" "499810aceca712beb7bfed39b19a4761cfb96dd5fc4b83cb9e8cb99e17d945fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "499810aceca712beb7bfed39b19a4761cfb96dd5fc4b83cb9e8cb99e17d945fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "499810aceca712beb7bfed39b19a4761cfb96dd5fc4b83cb9e8cb99e17d945fc", kill_on_drop: false }`
[INFO] [stdout] 499810aceca712beb7bfed39b19a4761cfb96dd5fc4b83cb9e8cb99e17d945fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 718bf8b6863798a5304a19d2560082b8a29cd58def86cfd82b7eabe647fd2925
[INFO] running `Command { std: "docker" "start" "-a" "718bf8b6863798a5304a19d2560082b8a29cd58def86cfd82b7eabe647fd2925", kill_on_drop: false }`
[INFO] [stderr]    Compiling btree v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "718bf8b6863798a5304a19d2560082b8a29cd58def86cfd82b7eabe647fd2925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "718bf8b6863798a5304a19d2560082b8a29cd58def86cfd82b7eabe647fd2925", kill_on_drop: false }`
[INFO] [stdout] 718bf8b6863798a5304a19d2560082b8a29cd58def86cfd82b7eabe647fd2925
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca779cc83b0aa16a6898f1388dc3fe4a6c7a67e34849045ee8a29aa1751e267e
[INFO] running `Command { std: "docker" "start" "-a" "ca779cc83b0aa16a6898f1388dc3fe4a6c7a67e34849045ee8a29aa1751e267e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling btree v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2m 16s
[INFO] running `Command { std: "docker" "inspect" "ca779cc83b0aa16a6898f1388dc3fe4a6c7a67e34849045ee8a29aa1751e267e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca779cc83b0aa16a6898f1388dc3fe4a6c7a67e34849045ee8a29aa1751e267e", kill_on_drop: false }`
[INFO] [stdout] ca779cc83b0aa16a6898f1388dc3fe4a6c7a67e34849045ee8a29aa1751e267e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bc0786c1d56610eb8347fee6b70953b46872f1fea23ca5e2671b2e90431b130c
[INFO] running `Command { std: "docker" "start" "-a" "bc0786c1d56610eb8347fee6b70953b46872f1fea23ca5e2671b2e90431b130c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/btree-ea0b4de3e06cbd5e)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test node::tests::delete_from_root ... ok
[INFO] [stdout] test node::tests::new_root ... ok
[INFO] [stdout] test tests::new_tree ... ok
[INFO] [stdout] test node::tests::delete ... ok
[INFO] [stdout] test tests::insert_search ... ok
[INFO] [stdout] test tests::clear ... ok
[INFO] [stdout] test node::tests::update ... ok
[INFO] [stdout] test tests::new_tree_min_deg ... ok
[INFO] [stdout] test node::tests::child_counts ... ok
[INFO] [stdout] test node::tests::get ... ok
[INFO] [stdout] test node::tests::key_counts ... ok
[INFO] [stdout] test node::tests::all_leaves_same_height ... ok
[INFO] [stdout] test node::tests::only_one_root ... ok
[INFO] [stdout] test node::tests::n_key_len ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.87s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests btree
[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" "bc0786c1d56610eb8347fee6b70953b46872f1fea23ca5e2671b2e90431b130c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0786c1d56610eb8347fee6b70953b46872f1fea23ca5e2671b2e90431b130c", kill_on_drop: false }`
[INFO] [stdout] bc0786c1d56610eb8347fee6b70953b46872f1fea23ca5e2671b2e90431b130c