[INFO] fetching crate ethereum-trie 0.5.0...
[INFO] checking ethereum-trie-0.5.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate ethereum-trie 0.5.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ethereum-trie 0.5.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ethereum-trie 0.5.0
[INFO] finished tweaking crates.io crate ethereum-trie 0.5.0
[INFO] tweaked toml for crates.io crate ethereum-trie 0.5.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding block-buffer v0.2.0 (available: v0.10.4)
[INFO] [stderr]       Adding byte-tools v0.2.0 (available: v0.3.1)
[INFO] [stderr]       Adding digest v0.6.1 (available: v0.10.7)
[INFO] [stderr]       Adding elastic-array-plus v0.9.1 (available: v0.10.0)
[INFO] [stderr]       Adding generic-array v0.8.4 (available: v1.1.0)
[INFO] [stderr]       Adding lazy_static v0.2.11 (available: v1.5.0)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (available: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (available: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (available: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (available: v0.8.3)
[INFO] [stderr]       Adding sha3 v0.6.0 (available: v0.10.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 974307528abefcf587b34285d07f3ae0f284e5e9363e73930150485faff9647b
[INFO] running `Command { std: "docker" "start" "-a" "974307528abefcf587b34285d07f3ae0f284e5e9363e73930150485faff9647b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "974307528abefcf587b34285d07f3ae0f284e5e9363e73930150485faff9647b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "974307528abefcf587b34285d07f3ae0f284e5e9363e73930150485faff9647b", kill_on_drop: false }`
[INFO] [stdout] 974307528abefcf587b34285d07f3ae0f284e5e9363e73930150485faff9647b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61c7c84513711516b3c3fc3da17110a9193f90fd9afc6556a2dbbfbe2c749be8
[INFO] running `Command { std: "docker" "start" "-a" "61c7c84513711516b3c3fc3da17110a9193f90fd9afc6556a2dbbfbe2c749be8", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking generic-array v0.8.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking ethereum-hexutil v0.2.3
[INFO] [stderr]     Checking elastic-array-plus v0.9.1
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking digest v0.6.1
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]     Checking sha3 v0.6.0
[INFO] [stderr]     Checking ethereum-rlp v0.2.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking ethereum-bigint v0.2.9
[INFO] [stderr]     Checking ethereum-trie v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]   --> src/merkle/node.rs:63:55
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 MerkleNode::Leaf(nibble.clone(), value.clone())
[INFO] [stdout]    |                                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]   --> src/ops/build.rs:12:54
[INFO] [stdout]    |
[INFO] [stdout] 12 |         submap.insert(key[common_len..].into(), value.clone());
[INFO] [stdout]    |                                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]   --> src/ops/build.rs:30:68
[INFO] [stdout]    |
[INFO] [stdout] 30 |         return (MerkleNode::Leaf(key.clone(), map.get(key).unwrap().clone()), change);
[INFO] [stdout]    |                                                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]   --> src/ops/build.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |             .map(|(_key, value)| value.clone());
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]   --> src/merkle/node.rs:63:55
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 MerkleNode::Leaf(nibble.clone(), value.clone())
[INFO] [stdout]    |                                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]   --> src/ops/build.rs:12:54
[INFO] [stdout]    |
[INFO] [stdout] 12 |         submap.insert(key[common_len..].into(), value.clone());
[INFO] [stdout]    |                                                      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]   --> src/ops/build.rs:30:68
[INFO] [stdout]    |
[INFO] [stdout] 30 |         return (MerkleNode::Leaf(key.clone(), map.get(key).unwrap().clone()), change);
[INFO] [stdout]    |                                                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]   --> src/ops/build.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |             .map(|(_key, value)| value.clone());
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "61c7c84513711516b3c3fc3da17110a9193f90fd9afc6556a2dbbfbe2c749be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61c7c84513711516b3c3fc3da17110a9193f90fd9afc6556a2dbbfbe2c749be8", kill_on_drop: false }`
[INFO] [stdout] 61c7c84513711516b3c3fc3da17110a9193f90fd9afc6556a2dbbfbe2c749be8