[INFO] fetching crate incrementalmerkletree 0.1.0...
[INFO] testing incrementalmerkletree-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate incrementalmerkletree 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate incrementalmerkletree 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate incrementalmerkletree 0.1.0
[INFO] finished tweaking crates.io crate incrementalmerkletree 0.1.0
[INFO] tweaked toml for crates.io crate incrementalmerkletree 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c61ccfb145864f0d40e668c1ce02fa2e6325ae68d727a0a076f7ed563e44d35b
[INFO] running `Command { std: "docker" "start" "-a" "c61ccfb145864f0d40e668c1ce02fa2e6325ae68d727a0a076f7ed563e44d35b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c61ccfb145864f0d40e668c1ce02fa2e6325ae68d727a0a076f7ed563e44d35b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c61ccfb145864f0d40e668c1ce02fa2e6325ae68d727a0a076f7ed563e44d35b", kill_on_drop: false }`
[INFO] [stdout] c61ccfb145864f0d40e668c1ce02fa2e6325ae68d727a0a076f7ed563e44d35b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da1f6c21c1203054563b22606ee50d963aa7d075eed81f0246531440c369f2ce
[INFO] running `Command { std: "docker" "start" "-a" "da1f6c21c1203054563b22606ee50d963aa7d075eed81f0246531440c369f2ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling incrementalmerkletree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.20s
[INFO] running `Command { std: "docker" "inspect" "da1f6c21c1203054563b22606ee50d963aa7d075eed81f0246531440c369f2ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da1f6c21c1203054563b22606ee50d963aa7d075eed81f0246531440c369f2ce", kill_on_drop: false }`
[INFO] [stdout] da1f6c21c1203054563b22606ee50d963aa7d075eed81f0246531440c369f2ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81861047926ff7d5a0d6beee0f87a01f77405f9782094f897abc1365c479affe
[INFO] running `Command { std: "docker" "start" "-a" "81861047926ff7d5a0d6beee0f87a01f77405f9782094f897abc1365c479affe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v0.10.1
[INFO] [stderr]    Compiling incrementalmerkletree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.79s
[INFO] running `Command { std: "docker" "inspect" "81861047926ff7d5a0d6beee0f87a01f77405f9782094f897abc1365c479affe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81861047926ff7d5a0d6beee0f87a01f77405f9782094f897abc1365c479affe", kill_on_drop: false }`
[INFO] [stdout] 81861047926ff7d5a0d6beee0f87a01f77405f9782094f897abc1365c479affe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 274ddb3161133ecd5fdc6699fb89c75936237f5bcb15c7fc35256484743228c1
[INFO] running `Command { std: "docker" "start" "-a" "274ddb3161133ecd5fdc6699fb89c75936237f5bcb15c7fc35256484743228c1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/incrementalmerkletree-328dcec2685c52cd)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test bridgetree::tests::checkpoint_rewind ... ok
[INFO] [stdout] test bridgetree::tests::drop_oldest_checkpoint ... ok
[INFO] [stdout] test bridgetree::tests::auth_paths ... ok
[INFO] [stdout] test bridgetree::tests::frontier_positions ... ok
[INFO] [stdout] test bridgetree::tests::frontier_roots ... ok
[INFO] [stdout] test bridgetree::tests::position_levels ... ok
[INFO] [stdout] test bridgetree::tests::tree_depth ... ok
[INFO] [stdout] test bridgetree::tests::root_hashes ... ok
[INFO] [stdout] test sample::tests::correct_auth_path ... ok
[INFO] [stdout] test tests::test_compute_root_from_auth_path ... ok
[INFO] [stdout] test sample::tests::correct_empty_root ... ok
[INFO] [stdout] test sample::tests::correct_root ... ok
[INFO] [stdout] test tests::check_randomized_str_ops has been running for over 60 seconds
[INFO] [stdout] test tests::check_randomized_u64_ops has been running for over 60 seconds
[INFO] [stdout] test tests::check_randomized_u64_ops ... ok
[INFO] [stdout] test tests::check_randomized_str_ops ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 296.28s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests incrementalmerkletree
[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" "274ddb3161133ecd5fdc6699fb89c75936237f5bcb15c7fc35256484743228c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274ddb3161133ecd5fdc6699fb89c75936237f5bcb15c7fc35256484743228c1", kill_on_drop: false }`
[INFO] [stdout] 274ddb3161133ecd5fdc6699fb89c75936237f5bcb15c7fc35256484743228c1