[INFO] fetching crate merkle-tree-bulletin-board 0.1.0...
[INFO] testing merkle-tree-bulletin-board-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate merkle-tree-bulletin-board 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate merkle-tree-bulletin-board 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 0ce1f4341bc7ab8ff3227c160c91ca6979d30efec5c8af3e51520be87f55a85d
[INFO] running `Command { std: "docker" "start" "-a" "0ce1f4341bc7ab8ff3227c160c91ca6979d30efec5c8af3e51520be87f55a85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ce1f4341bc7ab8ff3227c160c91ca6979d30efec5c8af3e51520be87f55a85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce1f4341bc7ab8ff3227c160c91ca6979d30efec5c8af3e51520be87f55a85d", kill_on_drop: false }`
[INFO] [stdout] 0ce1f4341bc7ab8ff3227c160c91ca6979d30efec5c8af3e51520be87f55a85d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cd74cfeb2f8266e9cb93699f612de9bf7f5a03a2d00761030f9b6f8c5634baa
[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" "3cd74cfeb2f8266e9cb93699f612de9bf7f5a03a2d00761030f9b6f8c5634baa", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling serde_json v1.0.71
[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 30.09s
[INFO] running `Command { std: "docker" "inspect" "3cd74cfeb2f8266e9cb93699f612de9bf7f5a03a2d00761030f9b6f8c5634baa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cd74cfeb2f8266e9cb93699f612de9bf7f5a03a2d00761030f9b6f8c5634baa", kill_on_drop: false }`
[INFO] [stdout] 3cd74cfeb2f8266e9cb93699f612de9bf7f5a03a2d00761030f9b6f8c5634baa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--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] 5b4a439d744295e7768fd3d05a499d49b727a48cc09302a2c96592606a8965b7
[INFO] running `Command { std: "docker" "start" "-a" "5b4a439d744295e7768fd3d05a499d49b727a48cc09302a2c96592606a8965b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[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 4.85s
[INFO] running `Command { std: "docker" "inspect" "5b4a439d744295e7768fd3d05a499d49b727a48cc09302a2c96592606a8965b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4a439d744295e7768fd3d05a499d49b727a48cc09302a2c96592606a8965b7", kill_on_drop: false }`
[INFO] [stdout] 5b4a439d744295e7768fd3d05a499d49b727a48cc09302a2c96592606a8965b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c53e6f86f69b033045d3a1fd2767119ae2554c12ee34b9293a823a8a664239f8
[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" "c53e6f86f69b033045d3a1fd2767119ae2554c12ee34b9293a823a8a664239f8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/merkle_tree_bulletin_board-b6785f231ca45559)
[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 0.30s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merkle-tree-bulletin-board
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name merkle_tree_bulletin_board --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f5ccf7dfbfa8eaad.rlib --extern csv=/opt/rustwide/target/debug/deps/libcsv-070fd40f94a283ed.rlib --extern hex=/opt/rustwide/target/debug/deps/libhex-df8306afd9dee15d.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-9ade512e5033c232.rlib --extern merkle_tree_bulletin_board=/opt/rustwide/target/debug/deps/libmerkle_tree_bulletin_board-0ae1b60ce528348f.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-36743584dc56c867.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-4096dee097cf2d0f.rlib --extern sha2=/opt/rustwide/target/debug/deps/libsha2-dcfe8c494cfc02f5.rlib --extern tempdir=/opt/rustwide/target/debug/deps/libtempdir-891fcb06bd742cc7.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "c53e6f86f69b033045d3a1fd2767119ae2554c12ee34b9293a823a8a664239f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c53e6f86f69b033045d3a1fd2767119ae2554c12ee34b9293a823a8a664239f8", kill_on_drop: false }`
[INFO] [stdout] c53e6f86f69b033045d3a1fd2767119ae2554c12ee34b9293a823a8a664239f8