[INFO] fetching crate mrkl 0.0.4...
[INFO] testing mrkl-0.0.4 against 1.45.2 for beta-1.46-1
[INFO] extracting crate mrkl 0.0.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mrkl 0.0.4 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mrkl 0.0.4
[INFO] finished tweaking crates.io crate mrkl 0.0.4
[INFO] tweaked toml for crates.io crate mrkl 0.0.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] 5d12e772c150b5b6679485596172017d112a669ab3630e125f9b16c3b217ba3d
[INFO] running `Command { std: "docker" "start" "-a" "5d12e772c150b5b6679485596172017d112a669ab3630e125f9b16c3b217ba3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d12e772c150b5b6679485596172017d112a669ab3630e125f9b16c3b217ba3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d12e772c150b5b6679485596172017d112a669ab3630e125f9b16c3b217ba3d", kill_on_drop: false }`
[INFO] [stdout] 5d12e772c150b5b6679485596172017d112a669ab3630e125f9b16c3b217ba3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 539ae5d164b0e395c7682ff17d94acc2d9e8db92e27816a9e3a64c83178c065b
[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" "539ae5d164b0e395c7682ff17d94acc2d9e8db92e27816a9e3a64c83178c065b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.37
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling digest-hash v0.3.0
[INFO] [stderr]    Compiling mrkl v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.69s
[INFO] running `Command { std: "docker" "inspect" "539ae5d164b0e395c7682ff17d94acc2d9e8db92e27816a9e3a64c83178c065b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539ae5d164b0e395c7682ff17d94acc2d9e8db92e27816a9e3a64c83178c065b", kill_on_drop: false }`
[INFO] [stdout] 539ae5d164b0e395c7682ff17d94acc2d9e8db92e27816a9e3a64c83178c065b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 297edffcf661517d0f82ae923f04ef1dd92a338b975a843a3ff04914c4a9a4ba
[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" "297edffcf661517d0f82ae923f04ef1dd92a338b975a843a3ff04914c4a9a4ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling mrkl v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.62s
[INFO] running `Command { std: "docker" "inspect" "297edffcf661517d0f82ae923f04ef1dd92a338b975a843a3ff04914c4a9a4ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "297edffcf661517d0f82ae923f04ef1dd92a338b975a843a3ff04914c4a9a4ba", kill_on_drop: false }`
[INFO] [stdout] 297edffcf661517d0f82ae923f04ef1dd92a338b975a843a3ff04914c4a9a4ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 83482af6ba64d5b422a0c7deebf246ee6fc9b2f2feecfba5626111cacccfc3dc
[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" "83482af6ba64d5b422a0c7deebf246ee6fc9b2f2feecfba5626111cacccfc3dc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mrkl-c129a9bf8180be91
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test tree::builder::tests::builder_over_nonstatic_slice ... ok
[INFO] [stdout] test leaf::tests::owned_is_always_cloneable ... ok
[INFO] [stdout] test tree::builder::tests::builder_with_owned_leaves ... ok
[INFO] [stdout] test leaf::tests::no_data_is_cloneable ... ok
[INFO] [stdout] test tree::builder::tests::builder_leaf_extract_with_plain_fn ... ok
[INFO] [stdout] test tree::builder::tests::builder_no_data_fixed_size_array ... ok
[INFO] [stdout] test tree::builder::tests::builder_leaf_extract_with_closure ... ok
[INFO] [stdout] test leaf::tests::result_of_extract_with_is_cloneable ... ok
[INFO] [stdout] test tree::builder::tests::cant_make_full_from_empty ... ok
[INFO] [stdout] test tree::builder::tests::collect_children_for_arbitrary_arity_tree ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_from_empty ... ok
[INFO] [stdout] test digest::tests::byte_digest_with_custom_node_hasher ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_using_leaf_extract_with ... ok
[INFO] [stdout] test digest::tests::endian_digest_with_custom_node_hasher ... ok
[INFO] [stdout] test tree::builder::tests::stack_trees ... ok
[INFO] [stdout] test tree::builder::tests::two_leaves_make_a_tree ... ok
[INFO] [stdout] test digest::tests::hash_endian_input ... ok
[INFO] [stdout] test digest::tests::hash_byte_input ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_with_owned_leaf_data ... ok
[INFO] [stdout] test tree::builder::tests::full_tree_is_full ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_with_no_leaf_data ... ok
[INFO] [stdout] test tree::parallel::tests::cant_make_full_from_empty ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_using_leaf_extract_closure ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_is_subgraph_of_its_math_definition ... ok
[INFO] [stdout] test tree::parallel::tests::complete_leaf ... ok
[INFO] [stdout] test tree::parallel::tests::complete_tree_is_subgraph_of_its_math_definition ... ok
[INFO] [stdout] test tree::parallel::tests::complete_tree_from_empty ... ok
[INFO] [stdout] test tree::parallel::tests::collect_nodes_for_arbitrary_arity_tree ... ok
[INFO] [stdout] test tree::parallel::tests::complete_tree ... ok
[INFO] [stdout] test tree::parallel::tests::full_tree_is_full ... ok
[INFO] [stdout] test tree::builder::tests::child_out_of_range ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test serialize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_serialization-2694ebea972970d0
[INFO] [stderr]    Doc-tests mrkl
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/tree/builder.rs - tree::builder::Builder<D, leaf::NoData<In>>::new (line 90) ... ok
[INFO] [stdout] test src/tree/builder.rs - tree::builder::Builder<D, L>::complete_tree_from (line 255) ... ok
[INFO] [stdout] test src/tree/builder.rs - tree::builder::Builder<D, L>::full_tree_from (line 358) ... ok
[INFO] [stdout] test src/tree/parallel.rs - tree::parallel (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "83482af6ba64d5b422a0c7deebf246ee6fc9b2f2feecfba5626111cacccfc3dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83482af6ba64d5b422a0c7deebf246ee6fc9b2f2feecfba5626111cacccfc3dc", kill_on_drop: false }`
[INFO] [stdout] 83482af6ba64d5b422a0c7deebf246ee6fc9b2f2feecfba5626111cacccfc3dc