[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 beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolo-language%2Fbtree" "/workspace/builds/worker-83/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-83/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/polo-language/btree on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-83/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" "+beta-2021-09-08" "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-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2813be5c74a593a2c8cf6af61fc205a8d134ff7b5ebb8a6836703baacd2cd113
[INFO] running `Command { std: "docker" "start" "-a" "2813be5c74a593a2c8cf6af61fc205a8d134ff7b5ebb8a6836703baacd2cd113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2813be5c74a593a2c8cf6af61fc205a8d134ff7b5ebb8a6836703baacd2cd113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2813be5c74a593a2c8cf6af61fc205a8d134ff7b5ebb8a6836703baacd2cd113", kill_on_drop: false }`
[INFO] [stdout] 2813be5c74a593a2c8cf6af61fc205a8d134ff7b5ebb8a6836703baacd2cd113
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0af08a91cf05bb1e126ff63997119474fab5620b251dae9dc2e278b6e57ed2fc
[INFO] running `Command { std: "docker" "start" "-a" "0af08a91cf05bb1e126ff63997119474fab5620b251dae9dc2e278b6e57ed2fc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling btree v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.15s
[INFO] running `Command { std: "docker" "inspect" "0af08a91cf05bb1e126ff63997119474fab5620b251dae9dc2e278b6e57ed2fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0af08a91cf05bb1e126ff63997119474fab5620b251dae9dc2e278b6e57ed2fc", kill_on_drop: false }`
[INFO] [stdout] 0af08a91cf05bb1e126ff63997119474fab5620b251dae9dc2e278b6e57ed2fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94ed00597c0f5b933392cf5a5ee0f0d0a57d5509a90db6ec0ecefc2f1f77e764
[INFO] running `Command { std: "docker" "start" "-a" "94ed00597c0f5b933392cf5a5ee0f0d0a57d5509a90db6ec0ecefc2f1f77e764", 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 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 1m 36s
[INFO] running `Command { std: "docker" "inspect" "94ed00597c0f5b933392cf5a5ee0f0d0a57d5509a90db6ec0ecefc2f1f77e764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94ed00597c0f5b933392cf5a5ee0f0d0a57d5509a90db6ec0ecefc2f1f77e764", kill_on_drop: false }`
[INFO] [stdout] 94ed00597c0f5b933392cf5a5ee0f0d0a57d5509a90db6ec0ecefc2f1f77e764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 745ed6cab8d6a5f29034377d59c9da97935e362c39ec874f4dd2086c96fecc9d
[INFO] running `Command { std: "docker" "start" "-a" "745ed6cab8d6a5f29034377d59c9da97935e362c39ec874f4dd2086c96fecc9d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.88s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/btree-4a54ce2f3d554793)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test node::tests::delete_from_root ... ok
[INFO] [stdout] test node::tests::delete ... ok
[INFO] [stdout] test tests::insert_search ... ok
[INFO] [stdout] test node::tests::new_root ... ok
[INFO] [stdout] test tests::new_tree ... ok
[INFO] [stdout] test node::tests::update ... ok
[INFO] [stdout] test tests::clear ... ok
[INFO] [stdout] test tests::new_tree_min_deg ... ok
[INFO] [stdout] test node::tests::all_leaves_same_height ... ok
[INFO] [stdout] test node::tests::get ... ok
[INFO] [stdout] test node::tests::key_counts ... ok
[INFO] [stdout] test node::tests::only_one_root ... ok
[INFO] [stdout] test node::tests::n_key_len ... ok
[INFO] [stdout] test node::tests::child_counts ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.07s
[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" "745ed6cab8d6a5f29034377d59c9da97935e362c39ec874f4dd2086c96fecc9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "745ed6cab8d6a5f29034377d59c9da97935e362c39ec874f4dd2086c96fecc9d", kill_on_drop: false }`
[INFO] [stdout] 745ed6cab8d6a5f29034377d59c9da97935e362c39ec874f4dd2086c96fecc9d