[INFO] fetching crate incrementalmerkletree-testing 0.2.0-backcompat.0.8...
[INFO] testing incrementalmerkletree-testing-0.2.0-backcompat.0.8 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate incrementalmerkletree-testing 0.2.0-backcompat.0.8 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate incrementalmerkletree-testing 0.2.0-backcompat.0.8
[INFO] finished tweaking crates.io crate incrementalmerkletree-testing 0.2.0-backcompat.0.8
[INFO] tweaked toml for crates.io crate incrementalmerkletree-testing 0.2.0-backcompat.0.8 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate incrementalmerkletree-testing 0.2.0-backcompat.0.8 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate incrementalmerkletree-testing 0.2.0-backcompat.0.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48388aa11edf3d3f135ee3e32a3db114f3951f911d0ab2dfb3b0144fd78fe6da
[INFO] running `Command { std: "docker" "start" "-a" "48388aa11edf3d3f135ee3e32a3db114f3951f911d0ab2dfb3b0144fd78fe6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48388aa11edf3d3f135ee3e32a3db114f3951f911d0ab2dfb3b0144fd78fe6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48388aa11edf3d3f135ee3e32a3db114f3951f911d0ab2dfb3b0144fd78fe6da", kill_on_drop: false }`
[INFO] [stdout] 48388aa11edf3d3f135ee3e32a3db114f3951f911d0ab2dfb3b0144fd78fe6da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79b25ac24d3faa20e3de41aab261114bc63b3a35b7a5385d3ae198a848ea0352
[INFO] running `Command { std: "docker" "start" "-a" "79b25ac24d3faa20e3de41aab261114bc63b3a35b7a5385d3ae198a848ea0352", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v1.2.0
[INFO] [stderr]    Compiling incrementalmerkletree v0.8.2
[INFO] [stderr]    Compiling incrementalmerkletree-testing v0.2.0-backcompat.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.86s
[INFO] running `Command { std: "docker" "inspect" "79b25ac24d3faa20e3de41aab261114bc63b3a35b7a5385d3ae198a848ea0352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79b25ac24d3faa20e3de41aab261114bc63b3a35b7a5385d3ae198a848ea0352", kill_on_drop: false }`
[INFO] [stdout] 79b25ac24d3faa20e3de41aab261114bc63b3a35b7a5385d3ae198a848ea0352
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69fed648ea54e1259f1530fad6b3445c80137163ed5e96bbad45abb23a3d0666
[INFO] running `Command { std: "docker" "start" "-a" "69fed648ea54e1259f1530fad6b3445c80137163ed5e96bbad45abb23a3d0666", kill_on_drop: false }`
[INFO] [stderr]    Compiling incrementalmerkletree-testing v0.2.0-backcompat.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "69fed648ea54e1259f1530fad6b3445c80137163ed5e96bbad45abb23a3d0666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69fed648ea54e1259f1530fad6b3445c80137163ed5e96bbad45abb23a3d0666", kill_on_drop: false }`
[INFO] [stdout] 69fed648ea54e1259f1530fad6b3445c80137163ed5e96bbad45abb23a3d0666
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] afc86c9c42a7ea922110a7fac199257f20ed4d8b31cd1a4df7601b4c878c068d
[INFO] running `Command { std: "docker" "start" "-a" "afc86c9c42a7ea922110a7fac199257f20ed4d8b31cd1a4df7601b4c878c068d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/incrementalmerkletree_testing-5de20ffcf5c3e734)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test complete_tree::tests::correct_empty_root ... ok
[INFO] [stdout] test complete_tree::tests::witnesses ... ok
[INFO] [stdout] test complete_tree::tests::rewind_remove_mark ... ok
[INFO] [stdout] test complete_tree::tests::root_hashes ... ok
[INFO] [stdout] test complete_tree::tests::correct_root ... ok
[INFO] [stdout] test complete_tree::tests::append ... ok
[INFO] [stdout] test tests::test_compute_root_from_witness ... ok
[INFO] [stdout] test complete_tree::tests::checkpoint_rewind ... ok
[INFO] [stdout] test complete_tree::tests::correct_witness ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests incrementalmerkletree_testing
[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] running `Command { std: "docker" "inspect" "afc86c9c42a7ea922110a7fac199257f20ed4d8b31cd1a4df7601b4c878c068d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc86c9c42a7ea922110a7fac199257f20ed4d8b31cd1a4df7601b4c878c068d", kill_on_drop: false }`
[INFO] [stdout] afc86c9c42a7ea922110a7fac199257f20ed4d8b31cd1a4df7601b4c878c068d