[INFO] fetching crate zdd 0.3.0...
[INFO] checking zdd-0.3.0 against master#e4106065bf1bb515935d5d024e8d9c86454e2b22 for pr-112160
[INFO] extracting crate zdd 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate zdd 0.3.0 on toolchain e4106065bf1bb515935d5d024e8d9c86454e2b22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hashconsing v1.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f658d6858939b7d57aa27b33f363cd049ed4d8fbb9ad33bac61f3a2141270be3
[INFO] running `Command { std: "docker" "start" "-a" "f658d6858939b7d57aa27b33f363cd049ed4d8fbb9ad33bac61f3a2141270be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f658d6858939b7d57aa27b33f363cd049ed4d8fbb9ad33bac61f3a2141270be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f658d6858939b7d57aa27b33f363cd049ed4d8fbb9ad33bac61f3a2141270be3", kill_on_drop: false }`
[INFO] [stdout] f658d6858939b7d57aa27b33f363cd049ed4d8fbb9ad33bac61f3a2141270be3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdd9e061be0dd63382420a0b69f60fb9ed22e1c953def13f0f7ccffac8a87a96
[INFO] running `Command { std: "docker" "start" "-a" "bdd9e061be0dd63382420a0b69f60fb9ed22e1c953def13f0f7ccffac8a87a96", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.145
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking hashconsing v1.5.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking zdd v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&Label` instead of borrowing the inner type
[INFO] [stdout]    --> src/wrapped.rs:162:53
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let zdd = self.factory.offset(&self.zdd, lbl.borrow());
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&Label` instead of borrowing the inner type
[INFO] [stdout]    --> src/wrapped.rs:170:52
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let zdd = self.factory.onset(&self.zdd, lbl.borrow());
[INFO] [stdout]     |                                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&Label` instead of borrowing the inner type
[INFO] [stdout]    --> src/wrapped.rs:178:53
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let zdd = self.factory.change(&self.zdd, lbl.borrow());
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&Label` instead of borrowing the inner type
[INFO] [stdout]    --> src/wrapped.rs:162:53
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let zdd = self.factory.offset(&self.zdd, lbl.borrow());
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&Label` instead of borrowing the inner type
[INFO] [stdout]    --> src/wrapped.rs:170:52
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let zdd = self.factory.onset(&self.zdd, lbl.borrow());
[INFO] [stdout]     |                                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&Label` instead of borrowing the inner type
[INFO] [stdout]    --> src/wrapped.rs:178:53
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let zdd = self.factory.change(&self.zdd, lbl.borrow());
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "bdd9e061be0dd63382420a0b69f60fb9ed22e1c953def13f0f7ccffac8a87a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdd9e061be0dd63382420a0b69f60fb9ed22e1c953def13f0f7ccffac8a87a96", kill_on_drop: false }`
[INFO] [stdout] bdd9e061be0dd63382420a0b69f60fb9ed22e1c953def13f0f7ccffac8a87a96