[INFO] fetching crate trie-db 0.22.6...
[INFO] testing trie-db-0.22.6 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate trie-db 0.22.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate trie-db 0.22.6 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trie-db 0.22.6
[INFO] finished tweaking crates.io crate trie-db 0.22.6
[INFO] tweaked toml for crates.io crate trie-db 0.22.6 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] c9d12bbd7879b50c10603449b9a6b4587a888a856cd5660c788f5451c5e4a0b5
[INFO] running `Command { std: "docker" "start" "-a" "c9d12bbd7879b50c10603449b9a6b4587a888a856cd5660c788f5451c5e4a0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9d12bbd7879b50c10603449b9a6b4587a888a856cd5660c788f5451c5e4a0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9d12bbd7879b50c10603449b9a6b4587a888a856cd5660c788f5451c5e4a0b5", kill_on_drop: false }`
[INFO] [stdout] c9d12bbd7879b50c10603449b9a6b4587a888a856cd5660c788f5451c5e4a0b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b6a87475da660e8438b95137b5b9ba16fa68a8ff2c6c9864a8fda8c73758cbb
[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" "4b6a87475da660e8438b95137b5b9ba16fa68a8ff2c6c9864a8fda8c73758cbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling hash-db v0.15.2
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling trie-db v0.22.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/proof/generate.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 211 |                 &mut hash.as_mut()[..encoded_child.len()].copy_from_slice(encoded_child);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/proof/verify.rs:454:6
[INFO] [stdout]     |
[INFO] [stdout] 454 |                     &mut hash.as_mut()[..node_data.len()].copy_from_slice(node_data.as_ref());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/triedbmut.rs:334:5
[INFO] [stdout]     |
[INFO] [stdout] 334 |                 &mut hash.as_mut()[..data.len()].copy_from_slice(data);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.38s
[INFO] running `Command { std: "docker" "inspect" "4b6a87475da660e8438b95137b5b9ba16fa68a8ff2c6c9864a8fda8c73758cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6a87475da660e8438b95137b5b9ba16fa68a8ff2c6c9864a8fda8c73758cbb", kill_on_drop: false }`
[INFO] [stdout] 4b6a87475da660e8438b95137b5b9ba16fa68a8ff2c6c9864a8fda8c73758cbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] f5dc9365e9a0bde842dd83431360ba023bf75f8d86bad85ed95d7815d9212b08
[INFO] running `Command { std: "docker" "start" "-a" "f5dc9365e9a0bde842dd83431360ba023bf75f8d86bad85ed95d7815d9212b08", kill_on_drop: false }`
[INFO] [stderr]    Compiling trie-db v0.22.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/proof/generate.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 211 |                 &mut hash.as_mut()[..encoded_child.len()].copy_from_slice(encoded_child);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/proof/verify.rs:454:6
[INFO] [stdout]     |
[INFO] [stdout] 454 |                     &mut hash.as_mut()[..node_data.len()].copy_from_slice(node_data.as_ref());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/triedbmut.rs:334:5
[INFO] [stdout]     |
[INFO] [stdout] 334 |                 &mut hash.as_mut()[..data.len()].copy_from_slice(data);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/proof/generate.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 211 |                 &mut hash.as_mut()[..encoded_child.len()].copy_from_slice(encoded_child);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/proof/verify.rs:454:6
[INFO] [stdout]     |
[INFO] [stdout] 454 |                     &mut hash.as_mut()[..node_data.len()].copy_from_slice(node_data.as_ref());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/triedbmut.rs:334:5
[INFO] [stdout]     |
[INFO] [stdout] 334 |                 &mut hash.as_mut()[..data.len()].copy_from_slice(data);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "f5dc9365e9a0bde842dd83431360ba023bf75f8d86bad85ed95d7815d9212b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5dc9365e9a0bde842dd83431360ba023bf75f8d86bad85ed95d7815d9212b08", kill_on_drop: false }`
[INFO] [stdout] f5dc9365e9a0bde842dd83431360ba023bf75f8d86bad85ed95d7815d9212b08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", 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] ddd66cfb6ef6ef4800c03e06176f5e8f9439f300c0c35556c251e096e899f3bf
[INFO] running `Command { std: "docker" "start" "-a" "ddd66cfb6ef6ef4800c03e06176f5e8f9439f300c0c35556c251e096e899f3bf", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/proof/generate.rs:211:5
[INFO] [stderr]     |
[INFO] [stderr] 211 |                 &mut hash.as_mut()[..encoded_child.len()].copy_from_slice(encoded_child);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/proof/verify.rs:454:6
[INFO] [stderr]     |
[INFO] [stderr] 454 |                     &mut hash.as_mut()[..node_data.len()].copy_from_slice(node_data.as_ref());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/triedbmut.rs:334:5
[INFO] [stderr]     |
[INFO] [stderr] 334 |                 &mut hash.as_mut()[..data.len()].copy_from_slice(data);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/proof/generate.rs:211:5
[INFO] [stderr]     |
[INFO] [stderr] 211 |                 &mut hash.as_mut()[..encoded_child.len()].copy_from_slice(encoded_child);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/proof/verify.rs:454:6
[INFO] [stderr]     |
[INFO] [stderr] 454 |                     &mut hash.as_mut()[..node_data.len()].copy_from_slice(node_data.as_ref());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/triedbmut.rs:334:5
[INFO] [stderr]     |
[INFO] [stderr] 334 |                 &mut hash.as_mut()[..data.len()].copy_from_slice(data);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/trie_db-40dca9020f1be1d8)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test nibble::leftnibbleslice::tests::test_len ... ok
[INFO] [stdout] test nibble::leftnibbleslice::tests::test_starts_with ... ok
[INFO] [stdout] test nibble::nibbleslice::tests::compare ... ok
[INFO] [stdout] test nibble::nibbleslice::tests::from_encoded_pre ... ok
[INFO] [stdout] test nibble::nibbleslice::tests::iterator ... ok
[INFO] [stdout] test nibble::nibbleslice::tests::basics ... ok
[INFO] [stdout] test nibble::nibbleslice::tests::range_iter ... ok
[INFO] [stdout] test nibble::nibbleslice::tests::shared ... ok
[INFO] [stdout] test nibble::nibblevec::tests::push_pop ... ok
[INFO] [stdout] test nibble::nibblevec::tests::append_partial ... ok
[INFO] [stdout] test nibble::nibbleslice::tests::encoded_pre ... ok
[INFO] [stdout] test triedbmut::tests::combine_test ... ok
[INFO] [stdout] test triedbmut::tests::nice_debug_for_node ... ok
[INFO] [stdout] test nibble::nibblevec::tests::drop_lasts_test ... ok
[INFO] [stdout] test nibble::nibbleslice::tests::mid ... ok
[INFO] [stdout] test nibble::leftnibbleslice::tests::test_at ... ok
[INFO] [stdout] test nibble::leftnibbleslice::tests::test_contains ... ok
[INFO] [stdout] test nibble::leftnibbleslice::tests::test_cmp ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests trie-db
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/triedb.rs - triedb::TrieDB (line 36) ... ignored
[INFO] [stdout] test src/triedbmut.rs - triedbmut::TrieDBMut (line 396) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ddd66cfb6ef6ef4800c03e06176f5e8f9439f300c0c35556c251e096e899f3bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddd66cfb6ef6ef4800c03e06176f5e8f9439f300c0c35556c251e096e899f3bf", kill_on_drop: false }`
[INFO] [stdout] ddd66cfb6ef6ef4800c03e06176f5e8f9439f300c0c35556c251e096e899f3bf