[INFO] crate mrkl 0.0.4 is already in cache
[INFO] testing mrkl-0.0.4 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate mrkl 0.0.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate mrkl 0.0.4 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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] 0b2c2ff222018a2ebb8685bea608ebe3e9a0af4cfb9c8eaf09d7755208a5908d
[INFO] running `Command { std: "docker" "start" "-a" "0b2c2ff222018a2ebb8685bea608ebe3e9a0af4cfb9c8eaf09d7755208a5908d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b2c2ff222018a2ebb8685bea608ebe3e9a0af4cfb9c8eaf09d7755208a5908d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b2c2ff222018a2ebb8685bea608ebe3e9a0af4cfb9c8eaf09d7755208a5908d", kill_on_drop: false }`
[INFO] [stdout] 0b2c2ff222018a2ebb8685bea608ebe3e9a0af4cfb9c8eaf09d7755208a5908d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ddf91281b5c47986aa86f5cb65f313149927705861f81f33fc29c6970a3de45
[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" "3ddf91281b5c47986aa86f5cb65f313149927705861f81f33fc29c6970a3de45", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[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 syn v1.0.35
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rayon-core v1.7.1
[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 24.51s
[INFO] running `Command { std: "docker" "inspect" "3ddf91281b5c47986aa86f5cb65f313149927705861f81f33fc29c6970a3de45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ddf91281b5c47986aa86f5cb65f313149927705861f81f33fc29c6970a3de45", kill_on_drop: false }`
[INFO] [stdout] 3ddf91281b5c47986aa86f5cb65f313149927705861f81f33fc29c6970a3de45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7863785a7452232aabbe1d46f6b792ae98794ddc2a4156e8c604e969d3155d70
[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" "7863785a7452232aabbe1d46f6b792ae98794ddc2a4156e8c604e969d3155d70", kill_on_drop: false }`
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[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 serde_json v1.0.56
[INFO] [stderr]    Compiling mrkl v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.99s
[INFO] running `Command { std: "docker" "inspect" "7863785a7452232aabbe1d46f6b792ae98794ddc2a4156e8c604e969d3155d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7863785a7452232aabbe1d46f6b792ae98794ddc2a4156e8c604e969d3155d70", kill_on_drop: false }`
[INFO] [stdout] 7863785a7452232aabbe1d46f6b792ae98794ddc2a4156e8c604e969d3155d70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 99f60d8132a4c7341188bf778dabd7a34fb94a89e2f3b93848bc524e7c29a87b
[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" "99f60d8132a4c7341188bf778dabd7a34fb94a89e2f3b93848bc524e7c29a87b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] running 31 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mrkl-a8e5ed472ec15539
[INFO] [stdout] test digest::tests::hash_endian_input ... ok
[INFO] [stdout] test leaf::tests::no_data_is_cloneable ... ok
[INFO] [stdout] test digest::tests::endian_digest_with_custom_node_hasher ... ok
[INFO] [stdout] test digest::tests::byte_digest_with_custom_node_hasher ... ok
[INFO] [stdout] test tree::builder::tests::builder_leaf_extract_with_plain_fn ... ok
[INFO] [stdout] test tree::builder::tests::builder_with_owned_leaves ... ok
[INFO] [stdout] test tree::builder::tests::builder_no_data_fixed_size_array ... ok
[INFO] [stdout] test digest::tests::hash_byte_input ... ok
[INFO] [stdout] test tree::builder::tests::builder_over_nonstatic_slice ... ok
[INFO] [stdout] test tree::builder::tests::cant_make_full_from_empty ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_using_leaf_extract_with ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_with_owned_leaf_data ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_with_no_leaf_data ... ok
[INFO] [stdout] test leaf::tests::result_of_extract_with_is_cloneable ... ok
[INFO] [stdout] test tree::builder::tests::builder_leaf_extract_with_closure ... ok
[INFO] [stdout] test leaf::tests::owned_is_always_cloneable ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_is_subgraph_of_its_math_definition ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_using_leaf_extract_closure ... 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 tree::builder::tests::two_leaves_make_a_tree ... ok
[INFO] [stdout] test tree::builder::tests::stack_trees ... ok
[INFO] [stdout] test tree::parallel::tests::cant_make_full_from_empty ... ok
[INFO] [stdout] test tree::builder::tests::full_tree_is_full ... ok
[INFO] [stdout] test tree::parallel::tests::complete_leaf ... ok
[INFO] [stdout] test tree::parallel::tests::collect_nodes_for_arbitrary_arity_tree ... ok
[INFO] [stdout] test tree::parallel::tests::full_tree_is_full ... 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::complete_tree ... 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] [stderr]      Running /opt/rustwide/target/debug/deps/test_serialization-3e0910b36fce60e8
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests mrkl
[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] [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>::full_tree_from (line 358) ... ok
[INFO] [stdout] test src/tree/builder.rs - tree::builder::Builder<D, L>::complete_tree_from (line 255) ... 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" "99f60d8132a4c7341188bf778dabd7a34fb94a89e2f3b93848bc524e7c29a87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99f60d8132a4c7341188bf778dabd7a34fb94a89e2f3b93848bc524e7c29a87b", kill_on_drop: false }`
[INFO] [stdout] 99f60d8132a4c7341188bf778dabd7a34fb94a89e2f3b93848bc524e7c29a87b