[INFO] fetching crate zdd 0.3.0...
[INFO] building zdd-0.3.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate zdd 0.3.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate zdd 0.3.0
[INFO] finished tweaking crates.io crate zdd 0.3.0
[INFO] tweaked toml for crates.io crate zdd 0.3.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate zdd 0.3.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hashconsing v1.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c757b2690b551037ca8e42c61c1bacf316dc80a3528c27eede2f3385d4c984e
[INFO] running `Command { std: "docker" "start" "-a" "2c757b2690b551037ca8e42c61c1bacf316dc80a3528c27eede2f3385d4c984e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c757b2690b551037ca8e42c61c1bacf316dc80a3528c27eede2f3385d4c984e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c757b2690b551037ca8e42c61c1bacf316dc80a3528c27eede2f3385d4c984e", kill_on_drop: false }`
[INFO] [stdout] 2c757b2690b551037ca8e42c61c1bacf316dc80a3528c27eede2f3385d4c984e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f24df7a2fdc5d06e07c0990ea91ec6b2c0fe191250929b4f05832ae0a608a8ce
[INFO] running `Command { std: "docker" "start" "-a" "f24df7a2fdc5d06e07c0990ea91ec6b2c0fe191250929b4f05832ae0a608a8ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling hashconsing v1.6.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling zdd v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:187:53
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let zdd = self.factory.union(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 187 -         let zdd = self.factory.union(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout] 187 +         let zdd = self.factory.union(&self.zdd, &rhs.zdd);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:195:53
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let zdd = self.factory.inter(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 195 -         let zdd = self.factory.inter(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout] 195 +         let zdd = self.factory.inter(&self.zdd, &rhs.zdd);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:203:53
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let zdd = self.factory.minus(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 203 -         let zdd = self.factory.minus(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout] 203 +         let zdd = self.factory.minus(&self.zdd, &rhs.zdd);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:212:44
[INFO] [stdout]     |
[INFO] [stdout] 212 |         self.factory.subset(&self.zdd, &rhs.borrow().zdd)
[INFO] [stdout]     |                                            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 212 -         self.factory.subset(&self.zdd, &rhs.borrow().zdd)
[INFO] [stdout] 212 +         self.factory.subset(&self.zdd, &rhs.zdd)
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "f24df7a2fdc5d06e07c0990ea91ec6b2c0fe191250929b4f05832ae0a608a8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f24df7a2fdc5d06e07c0990ea91ec6b2c0fe191250929b4f05832ae0a608a8ce", kill_on_drop: false }`
[INFO] [stdout] f24df7a2fdc5d06e07c0990ea91ec6b2c0fe191250929b4f05832ae0a608a8ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd8db7b6bd5cb9affc7568722324228518986488f182214d5d7fba6190e5b065
[INFO] running `Command { std: "docker" "start" "-a" "cd8db7b6bd5cb9affc7568722324228518986488f182214d5d7fba6190e5b065", kill_on_drop: false }`
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:187:53
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let zdd = self.factory.union(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 187 -         let zdd = self.factory.union(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout] 187 +         let zdd = self.factory.union(&self.zdd, &rhs.zdd);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:195:53
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let zdd = self.factory.inter(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 195 -         let zdd = self.factory.inter(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout] 195 +         let zdd = self.factory.inter(&self.zdd, &rhs.zdd);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:203:53
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let zdd = self.factory.minus(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 203 -         let zdd = self.factory.minus(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout] 203 +         let zdd = self.factory.minus(&self.zdd, &rhs.zdd);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:212:44
[INFO] [stdout]     |
[INFO] [stdout] 212 |         self.factory.subset(&self.zdd, &rhs.borrow().zdd)
[INFO] [stdout]     |                                            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 212 -         self.factory.subset(&self.zdd, &rhs.borrow().zdd)
[INFO] [stdout] 212 +         self.factory.subset(&self.zdd, &rhs.zdd)
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zdd v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:187:53
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let zdd = self.factory.union(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 187 -         let zdd = self.factory.union(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout] 187 +         let zdd = self.factory.union(&self.zdd, &rhs.zdd);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:195:53
[INFO] [stdout]     |
[INFO] [stdout] 195 |         let zdd = self.factory.inter(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 195 -         let zdd = self.factory.inter(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout] 195 +         let zdd = self.factory.inter(&self.zdd, &rhs.zdd);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:203:53
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let zdd = self.factory.minus(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 203 -         let zdd = self.factory.minus(&self.zdd, &rhs.borrow().zdd);
[INFO] [stdout] 203 +         let zdd = self.factory.minus(&self.zdd, &rhs.zdd);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/wrapped.rs:212:44
[INFO] [stdout]     |
[INFO] [stdout] 212 |         self.factory.subset(&self.zdd, &rhs.borrow().zdd)
[INFO] [stdout]     |                                            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `wrapped::Zdd<Label>` does not implement `Borrow`, so calling `borrow` on `&wrapped::Zdd<Label>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 212 -         self.factory.subset(&self.zdd, &rhs.borrow().zdd)
[INFO] [stdout] 212 +         self.factory.subset(&self.zdd, &rhs.zdd)
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `wrapped::Zdd<Label>`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout]  49 + #[derive(Clone)]
[INFO] [stdout]  50 | pub struct Zdd<Label: Eq + Hash + Clone> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "cd8db7b6bd5cb9affc7568722324228518986488f182214d5d7fba6190e5b065", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd8db7b6bd5cb9affc7568722324228518986488f182214d5d7fba6190e5b065", kill_on_drop: false }`
[INFO] [stdout] cd8db7b6bd5cb9affc7568722324228518986488f182214d5d7fba6190e5b065