[INFO] fetching crate verugent 0.1.3...
[INFO] checking verugent-0.1.3 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate verugent 0.1.3 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate verugent 0.1.3 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 verugent 0.1.3
[INFO] finished tweaking crates.io crate verugent 0.1.3
[INFO] tweaked toml for crates.io crate verugent 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate verugent 0.1.3 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" "+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] bc4d91f9f122b78995826227b4ade61d41525ed41eebb51b871d2622fab8a5a0
[INFO] running `Command { std: "docker" "start" "-a" "bc4d91f9f122b78995826227b4ade61d41525ed41eebb51b871d2622fab8a5a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc4d91f9f122b78995826227b4ade61d41525ed41eebb51b871d2622fab8a5a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc4d91f9f122b78995826227b4ade61d41525ed41eebb51b871d2622fab8a5a0", kill_on_drop: false }`
[INFO] [stdout] bc4d91f9f122b78995826227b4ade61d41525ed41eebb51b871d2622fab8a5a0
[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] 6c1013a40dd12faa9acae823cf678a2da70b1217590052b547a2272dacd556d2
[INFO] running `Command { std: "docker" "start" "-a" "6c1013a40dd12faa9acae823cf678a2da70b1217590052b547a2272dacd556d2", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking verugent v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]     --> src/vcore.rs:2999:20
[INFO] [stdout]      |
[INFO] [stdout] 2999 |         self.State[(self.Current_state as usize)].SetBranch(Branch.into(), F!(NState = Goto_));
[INFO] [stdout]      |                    ^                           ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2999 -         self.State[(self.Current_state as usize)].SetBranch(Branch.into(), F!(NState = Goto_));
[INFO] [stdout] 2999 +         self.State[self.Current_state as usize].SetBranch(Branch.into(), F!(NState = Goto_));
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]     --> src/vcore.rs:3011:43
[INFO] [stdout]      |
[INFO] [stdout] 3011 |         let NameCurrentState = self.State[((self.Current_state-1) as usize)].getStateName();
[INFO] [stdout]      |                                           ^                               ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3011 -         let NameCurrentState = self.State[((self.Current_state-1) as usize)].getStateName();
[INFO] [stdout] 3011 +         let NameCurrentState = self.State[(self.Current_state-1) as usize].getStateName();
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]     --> src/vcore.rs:2999:20
[INFO] [stdout]      |
[INFO] [stdout] 2999 |         self.State[(self.Current_state as usize)].SetBranch(Branch.into(), F!(NState = Goto_));
[INFO] [stdout]      |                    ^                           ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2999 -         self.State[(self.Current_state as usize)].SetBranch(Branch.into(), F!(NState = Goto_));
[INFO] [stdout] 2999 +         self.State[self.Current_state as usize].SetBranch(Branch.into(), F!(NState = Goto_));
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]     --> src/vcore.rs:3011:43
[INFO] [stdout]      |
[INFO] [stdout] 3011 |         let NameCurrentState = self.State[((self.Current_state-1) as usize)].getStateName();
[INFO] [stdout]      |                                           ^                               ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 3011 -         let NameCurrentState = self.State[((self.Current_state-1) as usize)].getStateName();
[INFO] [stdout] 3011 +         let NameCurrentState = self.State[(self.Current_state-1) as usize].getStateName();
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::new` that must be used
[INFO] [stdout]     --> src/vcore.rs:1456:13
[INFO] [stdout]      |
[INFO] [stdout] 1456 |             Box::new(E::Null);
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1456 |             let _ = Box::new(E::Null);
[INFO] [stdout]      |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/vcore.rs:2116:26
[INFO] [stdout]      |
[INFO] [stdout] 2116 |                 match tmp.clone() {
[INFO] [stdout]      |                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]      = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/vcore.rs:2126:22
[INFO] [stdout]      |
[INFO] [stdout] 2126 |             match tmp.clone() {
[INFO] [stdout]      |                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/vcore.rs:2235:22
[INFO] [stdout]      |
[INFO] [stdout] 2235 |             match tmp.clone() {
[INFO] [stdout]      |                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::new` that must be used
[INFO] [stdout]     --> src/vcore.rs:1456:13
[INFO] [stdout]      |
[INFO] [stdout] 1456 |             Box::new(E::Null);
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1456 |             let _ = Box::new(E::Null);
[INFO] [stdout]      |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/vcore.rs:2116:26
[INFO] [stdout]      |
[INFO] [stdout] 2116 |                 match tmp.clone() {
[INFO] [stdout]      |                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]      = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/vcore.rs:2126:22
[INFO] [stdout]      |
[INFO] [stdout] 2126 |             match tmp.clone() {
[INFO] [stdout]      |                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/vcore.rs:2235:22
[INFO] [stdout]      |
[INFO] [stdout] 2235 |             match tmp.clone() {
[INFO] [stdout]      |                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "6c1013a40dd12faa9acae823cf678a2da70b1217590052b547a2272dacd556d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1013a40dd12faa9acae823cf678a2da70b1217590052b547a2272dacd556d2", kill_on_drop: false }`
[INFO] [stdout] 6c1013a40dd12faa9acae823cf678a2da70b1217590052b547a2272dacd556d2