[INFO] fetching crate merkle-tree-bulletin-board 0.1.0...
[INFO] testing merkle-tree-bulletin-board-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate merkle-tree-bulletin-board 0.1.0 into /workspace/builds/worker-68/source
[INFO] validating manifest of crates.io crate merkle-tree-bulletin-board 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 merkle-tree-bulletin-board 0.1.0
[INFO] finished tweaking crates.io crate merkle-tree-bulletin-board 0.1.0
[INFO] tweaked toml for crates.io crate merkle-tree-bulletin-board 0.1.0 written to /workspace/builds/worker-68/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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] e4fb362f290cc40840111c3dd6d21f6d62aaf2d11694e9cb8cc325c254250c60
[INFO] running `Command { std: "docker" "start" "-a" "e4fb362f290cc40840111c3dd6d21f6d62aaf2d11694e9cb8cc325c254250c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4fb362f290cc40840111c3dd6d21f6d62aaf2d11694e9cb8cc325c254250c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4fb362f290cc40840111c3dd6d21f6d62aaf2d11694e9cb8cc325c254250c60", kill_on_drop: false }`
[INFO] [stdout] e4fb362f290cc40840111c3dd6d21f6d62aaf2d11694e9cb8cc325c254250c60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] a79135a40c13d3146b362b223788d18c24c320f13b7bad37afeb20b2700a5f05
[INFO] running `Command { std: "docker" "start" "-a" "a79135a40c13d3146b362b223788d18c24c320f13b7bad37afeb20b2700a5f05", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling merkle-tree-bulletin-board v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.20s
[INFO] running `Command { std: "docker" "inspect" "a79135a40c13d3146b362b223788d18c24c320f13b7bad37afeb20b2700a5f05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79135a40c13d3146b362b223788d18c24c320f13b7bad37afeb20b2700a5f05", kill_on_drop: false }`
[INFO] [stdout] a79135a40c13d3146b362b223788d18c24c320f13b7bad37afeb20b2700a5f05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] ca454b15c6b9190a278c30643332c7315bbce06f123f02eda618a4ba5b01419f
[INFO] running `Command { std: "docker" "start" "-a" "ca454b15c6b9190a278c30643332c7315bbce06f123f02eda618a4ba5b01419f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling merkle-tree-bulletin-board v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.44s
[INFO] running `Command { std: "docker" "inspect" "ca454b15c6b9190a278c30643332c7315bbce06f123f02eda618a4ba5b01419f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca454b15c6b9190a278c30643332c7315bbce06f123f02eda618a4ba5b01419f", kill_on_drop: false }`
[INFO] [stdout] ca454b15c6b9190a278c30643332c7315bbce06f123f02eda618a4ba5b01419f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] 4c28a09e81cd5109abfc7404213d3f2334f28d9476f7318fd318ebd6b008ae2e
[INFO] running `Command { std: "docker" "start" "-a" "4c28a09e81cd5109abfc7404213d3f2334f28d9476f7318fd318ebd6b008ae2e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/merkle_tree_bulletin_board-d19bbd494539fb09)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test deduce_journal::tests::test_deduce_root_order ... ok
[INFO] [stdout] test backend_journal::tests::test_rebuild_all_journals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.98s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merkle-tree-bulletin-board
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test src/lib.rs - BulletinBoard<B>::get_most_recent_published_root (line 371) ... ok
[INFO] [stdout] test src/deduce_journal.rs - deduce_journal::deduce_journal (line 33) ... ok
[INFO] [stdout] test src/backend_flatfile.rs - backend_flatfile::write_transaction_to_csv (line 91) ... ok
[INFO] [stdout] test src/backend_flatfile.rs - backend_flatfile::TransactionIterator<R>::new (line 182) ... ok
[INFO] [stdout] test src/lib.rs - BulletinBoard<B>::get_proof_chain (line 490) ... ok
[INFO] [stdout] test src/lib.rs - BulletinBoard<B>::censor_leaf (line 571) ... ok
[INFO] [stdout] test src/lib.rs - BulletinBoard<B>::get_hash_info (line 462) ... ok
[INFO] [stdout] test src/lib.rs - BulletinBoard<B>::get_all_published_roots (line 391) ... ok
[INFO] [stdout] test src/lib.rs - BulletinBoard<B>::submit_leaf (line 343) ... ok
[INFO] [stdout] test src/deduce_journal.rs - deduce_journal::deduce_journal_last_published_root_to_present (line 152) ... ok
[INFO] [stdout] test src/backend_flatfile.rs - backend_flatfile::write_transaction_to_csv (line 108) ... ok
[INFO] [stdout] test src/deduce_journal.rs - deduce_journal::deduce_journal (line 55) ... ok
[INFO] [stdout] test src/lib.rs - BulletinBoard<B>::get_parentless_unpublished_hash_values (line 412) ... ok
[INFO] [stdout] test src/backend_journal.rs - backend_journal::BackendJournal<B>::new (line 200) ... ok
[INFO] [stdout] test src/backend_journal.rs - backend_journal::BackendJournal<B>::new (line 181) ... ok
[INFO] [stdout] test src/deduce_journal.rs - deduce_journal::deduce_journal_from_prior_root_to_given_root (line 177) ... ok
[INFO] [stdout] test src/verifier.rs - verifier::verify_proof (line 36) ... ok
[INFO] [stdout] test src/lib.rs - BulletinBoard (line 119) ... ok
[INFO] [stdout] test src/verifier.rs - verifier::bulk_verify_between_two_consecutive_published_roots (line 122) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.97s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4c28a09e81cd5109abfc7404213d3f2334f28d9476f7318fd318ebd6b008ae2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c28a09e81cd5109abfc7404213d3f2334f28d9476f7318fd318ebd6b008ae2e", kill_on_drop: false }`
[INFO] [stdout] 4c28a09e81cd5109abfc7404213d3f2334f28d9476f7318fd318ebd6b008ae2e