[INFO] fetching crate merkle-tree-stream 0.12.1...
[INFO] testing merkle-tree-stream-0.12.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate merkle-tree-stream 0.12.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate merkle-tree-stream 0.12.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merkle-tree-stream 0.12.1
[INFO] finished tweaking crates.io crate merkle-tree-stream 0.12.1
[INFO] tweaked toml for crates.io crate merkle-tree-stream 0.12.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate merkle-tree-stream 0.12.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crypto-hash v0.3.4
[INFO] [stderr]   Downloaded vcpkg v0.2.10
[INFO] [stderr]   Downloaded openssl-sys v0.9.58
[INFO] [stderr]   Downloaded hex v0.4.2
[INFO] [stderr]   Downloaded openssl v0.10.30
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.14
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.64
[INFO] [stderr]   Downloaded smol v0.1.18
[INFO] [stderr]   Downloaded socket2 v0.3.12
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded fastrand v1.3.3
[INFO] [stderr]   Downloaded futures-io v0.3.5
[INFO] [stderr]   Downloaded concurrent-queue v1.1.1
[INFO] [stderr]   Downloaded async-task v3.0.0
[INFO] [stderr]   Downloaded waker-fn v1.0.0
[INFO] [stderr]   Downloaded slab v0.4.2
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded futures-channel v0.3.5
[INFO] [stderr]   Downloaded parking v1.0.4
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.64
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.64
[INFO] [stderr]   Downloaded blocking v0.4.6
[INFO] [stderr]   Downloaded web-sys v0.3.41
[INFO] [stderr]   Downloaded pin-project-internal v0.4.22
[INFO] [stderr]   Downloaded pin-project-lite v0.1.7
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.8
[INFO] [stderr]   Downloaded flat-tree v5.0.0
[INFO] [stderr]   Downloaded syn v1.0.33
[INFO] [stderr]   Downloaded libc v0.2.72
[INFO] [stderr]   Downloaded regex-syntax v0.6.18
[INFO] [stderr]   Downloaded regex v1.3.9
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded aho-corasick v0.7.13
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded futures-core v0.3.5
[INFO] [stderr]   Downloaded futures-sink v0.3.5
[INFO] [stderr]   Downloaded pin-project v0.4.22
[INFO] [stderr]   Downloaded futures-util v0.3.5
[INFO] [stderr]   Downloaded futures-task v0.3.5
[INFO] [stderr]   Downloaded once_cell v1.4.0
[INFO] [stderr]   Downloaded wepoll-sys-stjepang v1.0.6
[INFO] [stderr]   Downloaded bumpalo v3.4.0
[INFO] [stderr]   Downloaded js-sys v0.3.41
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.64
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.64
[INFO] [stderr]   Downloaded cc v1.0.58
[INFO] [stderr]   Downloaded async-std v1.6.2
[INFO] [stderr]   Downloaded commoncrypto-sys v0.2.0
[INFO] [stderr]   Downloaded commoncrypto v0.2.0
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 60d19b9f085481d67279dcee31dc0a0a95ace304c38b1c65a51bfd3094274f10
[INFO] running `Command { std: "docker" "start" "-a" "60d19b9f085481d67279dcee31dc0a0a95ace304c38b1c65a51bfd3094274f10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60d19b9f085481d67279dcee31dc0a0a95ace304c38b1c65a51bfd3094274f10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d19b9f085481d67279dcee31dc0a0a95ace304c38b1c65a51bfd3094274f10", kill_on_drop: false }`
[INFO] [stdout] 60d19b9f085481d67279dcee31dc0a0a95ace304c38b1c65a51bfd3094274f10
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a76c6cef0f45000204ea9c022a5e71aa0a152e05f26b5ab224fdb5b11b2e8f66
[INFO] running `Command { std: "docker" "start" "-a" "a76c6cef0f45000204ea9c022a5e71aa0a152e05f26b5ab224fdb5b11b2e8f66", kill_on_drop: false }`
[INFO] [stderr]    Compiling flat-tree v5.0.0
[INFO] [stderr]    Compiling merkle-tree-stream v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "a76c6cef0f45000204ea9c022a5e71aa0a152e05f26b5ab224fdb5b11b2e8f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a76c6cef0f45000204ea9c022a5e71aa0a152e05f26b5ab224fdb5b11b2e8f66", kill_on_drop: false }`
[INFO] [stdout] a76c6cef0f45000204ea9c022a5e71aa0a152e05f26b5ab224fdb5b11b2e8f66
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bb33fdb318f4afae5c3f92aeb23ddf041adb464aee436e794b6abdbc6477de4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9bb33fdb318f4afae5c3f92aeb23ddf041adb464aee436e794b6abdbc6477de4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling parking v1.0.4
[INFO] [stderr]    Compiling fastrand v1.3.3
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling concurrent-queue v1.1.1
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling pin-project v0.4.22
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling blocking v0.4.6
[INFO] [stderr]    Compiling smol v0.1.18
[INFO] [stderr]    Compiling async-std v1.6.2
[INFO] [stderr]    Compiling merkle-tree-stream v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 56.18s
[INFO] running `Command { std: "docker" "inspect" "9bb33fdb318f4afae5c3f92aeb23ddf041adb464aee436e794b6abdbc6477de4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb33fdb318f4afae5c3f92aeb23ddf041adb464aee436e794b6abdbc6477de4", kill_on_drop: false }`
[INFO] [stdout] 9bb33fdb318f4afae5c3f92aeb23ddf041adb464aee436e794b6abdbc6477de4
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 11418563bb384b73af85465d32176da0536d9712d5bbfffda38e486afd02e7a9
[INFO] running `Command { std: "docker" "start" "-a" "11418563bb384b73af85465d32176da0536d9712d5bbfffda38e486afd02e7a9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/merkle_tree_stream-9e82096aed761815)
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-cfb7ba184cc8e3c7)
[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] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test mts_new_with_nodes ... ok
[INFO] [stdout] test mts_one_node ... ok
[INFO] [stdout] test mts_more_nodes ... ok
[INFO] [stdout] test mts_is_deterministic ... ok
[INFO] [stdout] test all_leaves_contain_data ... ok
[INFO] [stdout] test roots_are_subset_of_nodes ... ok
[INFO] [stdout] test contains_all_data_in_correct_order ... ok
[INFO] [stdout] test roots_have_no_parent ... ok
[INFO] [stdout] test all_nodes_are_reachable_from_roots ... ok
[INFO] [stderr]    Doc-tests merkle-tree-stream
[INFO] [stdout] test hashes_change_when_data_is_changed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.99s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - MerkleTreeStream (line 106) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.29s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "11418563bb384b73af85465d32176da0536d9712d5bbfffda38e486afd02e7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11418563bb384b73af85465d32176da0536d9712d5bbfffda38e486afd02e7a9", kill_on_drop: false }`
[INFO] [stdout] 11418563bb384b73af85465d32176da0536d9712d5bbfffda38e486afd02e7a9