[INFO] fetching crate nibbletree 0.1.0...
[INFO] checking nibbletree-0.1.0 against try#024378d9203a4009ed73d6db2681b88a8d74ce7a for pr-112160
[INFO] extracting crate nibbletree 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate nibbletree 0.1.0 on toolchain 024378d9203a4009ed73d6db2681b88a8d74ce7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nibbletree 0.1.0
[INFO] finished tweaking crates.io crate nibbletree 0.1.0
[INFO] tweaked toml for crates.io crate nibbletree 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate nibbletree 0.1.0 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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 854e873768df0a34a53ecd13df44773e023317d9d932f24fb17b85a3e96c62eb
[INFO] running `Command { std: "docker" "start" "-a" "854e873768df0a34a53ecd13df44773e023317d9d932f24fb17b85a3e96c62eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "854e873768df0a34a53ecd13df44773e023317d9d932f24fb17b85a3e96c62eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854e873768df0a34a53ecd13df44773e023317d9d932f24fb17b85a3e96c62eb", kill_on_drop: false }`
[INFO] [stdout] 854e873768df0a34a53ecd13df44773e023317d9d932f24fb17b85a3e96c62eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f347f1cbee02ddabe9bb153fd745f47cfdb07af967673a257752a021439d46b
[INFO] running `Command { std: "docker" "start" "-a" "4f347f1cbee02ddabe9bb153fd745f47cfdb07af967673a257752a021439d46b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking thin-vec v0.2.10
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling rstest_macros v0.16.0
[INFO] [stderr]    Compiling rstest_reuse v0.5.0
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking nibbletree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/node.rs:324:53
[INFO] [stdout]     |
[INFO] [stdout] 324 |                 if let Some(result) = self.exact(key.clone()) {
[INFO] [stdout]     |                                                     ^^^^^^^^ unnecessary method call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `bitvec::slice::BitSlice` does not implement `Clone`, so calling `clone` on `&bitvec::slice::BitSlice` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nibbletree` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4f347f1cbee02ddabe9bb153fd745f47cfdb07af967673a257752a021439d46b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f347f1cbee02ddabe9bb153fd745f47cfdb07af967673a257752a021439d46b", kill_on_drop: false }`
[INFO] [stdout] 4f347f1cbee02ddabe9bb153fd745f47cfdb07af967673a257752a021439d46b