[INFO] fetching crate mrkl 0.0.4...
[INFO] testing mrkl-0.0.4 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate mrkl 0.0.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mrkl 0.0.4 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded digest-hash v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0427fae3ecec5699fe32b327e8d0ffa2cb45fb02cc38ad3b01c77bd4fabb7cf4
[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" "0427fae3ecec5699fe32b327e8d0ffa2cb45fb02cc38ad3b01c77bd4fabb7cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0427fae3ecec5699fe32b327e8d0ffa2cb45fb02cc38ad3b01c77bd4fabb7cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0427fae3ecec5699fe32b327e8d0ffa2cb45fb02cc38ad3b01c77bd4fabb7cf4", kill_on_drop: false }`
[INFO] [stdout] 0427fae3ecec5699fe32b327e8d0ffa2cb45fb02cc38ad3b01c77bd4fabb7cf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e024786465ae0c4a04270bdd8814a9a1b931d6788c7758a03e4eebd6109d8dc
[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" "9e024786465ae0c4a04270bdd8814a9a1b931d6788c7758a03e4eebd6109d8dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling generic-array v0.12.4
[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 14.66s
[INFO] running `Command { std: "docker" "inspect" "9e024786465ae0c4a04270bdd8814a9a1b931d6788c7758a03e4eebd6109d8dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e024786465ae0c4a04270bdd8814a9a1b931d6788c7758a03e4eebd6109d8dc", kill_on_drop: false }`
[INFO] [stdout] 9e024786465ae0c4a04270bdd8814a9a1b931d6788c7758a03e4eebd6109d8dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e34e25a80849a17118e3040fbc6c93308547fe4f4068160753af6f257cd1a25
[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" "8e34e25a80849a17118e3040fbc6c93308547fe4f4068160753af6f257cd1a25", kill_on_drop: false }`
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[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 8.07s
[INFO] running `Command { std: "docker" "inspect" "8e34e25a80849a17118e3040fbc6c93308547fe4f4068160753af6f257cd1a25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e34e25a80849a17118e3040fbc6c93308547fe4f4068160753af6f257cd1a25", kill_on_drop: false }`
[INFO] [stdout] 8e34e25a80849a17118e3040fbc6c93308547fe4f4068160753af6f257cd1a25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08138d3348ac13bfa844170fb1264862948f5583583537887b42dfbac18aad9f
[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" "08138d3348ac13bfa844170fb1264862948f5583583537887b42dfbac18aad9f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mrkl-951ea6055efdac37)
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test digest::tests::byte_digest_with_custom_node_hasher ... ok
[INFO] [stdout] test tree::builder::tests::builder_leaf_extract_with_closure ... ok
[INFO] [stdout] test tree::builder::tests::builder_over_nonstatic_slice ... ok
[INFO] [stdout] test tree::builder::tests::builder_with_owned_leaves ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_is_subgraph_of_its_math_definition ... ok
[INFO] [stdout] test digest::tests::endian_digest_with_custom_node_hasher ... 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::cant_make_full_from_empty ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_with_owned_leaf_data ... 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 tree::parallel::tests::cant_make_full_from_empty ... ok
[INFO] [stdout] test tree::builder::tests::full_tree_is_full ... ok
[INFO] [stdout] test leaf::tests::owned_is_always_cloneable ... ok
[INFO] [stdout] test tree::builder::tests::builder_leaf_extract_with_plain_fn ... ok
[INFO] [stdout] test tree::parallel::tests::complete_tree_from_empty ... ok
[INFO] [stdout] test leaf::tests::result_of_extract_with_is_cloneable ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_using_leaf_extract_closure ... ok
[INFO] [stdout] test tree::parallel::tests::collect_nodes_for_arbitrary_arity_tree ... ok
[INFO] [stdout] test tree::builder::tests::builder_no_data_fixed_size_array ... ok
[INFO] [stdout] test tree::parallel::tests::complete_tree_is_subgraph_of_its_math_definition ... ok
[INFO] [stdout] test tree::parallel::tests::complete_tree ... ok
[INFO] [stdout] test leaf::tests::no_data_is_cloneable ... ok
[INFO] [stdout] test digest::tests::hash_endian_input ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_using_leaf_extract_with ... ok
[INFO] [stdout] test tree::builder::tests::complete_tree_with_no_leaf_data ... ok
[INFO] [stdout] test tree::parallel::tests::complete_leaf ... ok
[INFO] [stdout] test digest::tests::hash_byte_input ... ok
[INFO] [stdout] test tree::parallel::tests::full_tree_is_full ... ok
[INFO] [stdout] test tree::builder::tests::child_out_of_range - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test-serialization.rs (/opt/rustwide/target/debug/deps/test_serialization-156d2dd6afae0c8f)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[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, 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/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; finished in 2.53s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "08138d3348ac13bfa844170fb1264862948f5583583537887b42dfbac18aad9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08138d3348ac13bfa844170fb1264862948f5583583537887b42dfbac18aad9f", kill_on_drop: false }`
[INFO] [stdout] 08138d3348ac13bfa844170fb1264862948f5583583537887b42dfbac18aad9f