[INFO] fetching crate lynxlang 0.1.1...
[INFO] checking lynxlang-0.1.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate lynxlang 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate lynxlang 0.1.1 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] removed /workspace/builds/worker-1-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate lynxlang 0.1.1
[INFO] finished tweaking crates.io crate lynxlang 0.1.1
[INFO] tweaked toml for crates.io crate lynxlang 0.1.1 written to /workspace/builds/worker-1-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] 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] 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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b078064faaf9db9f4f63ec171a3a361bdfd61254439b93e29594c04379bb7d3
[INFO] running `Command { std: "docker" "start" "-a" "3b078064faaf9db9f4f63ec171a3a361bdfd61254439b93e29594c04379bb7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b078064faaf9db9f4f63ec171a3a361bdfd61254439b93e29594c04379bb7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b078064faaf9db9f4f63ec171a3a361bdfd61254439b93e29594c04379bb7d3", kill_on_drop: false }`
[INFO] [stdout] 3b078064faaf9db9f4f63ec171a3a361bdfd61254439b93e29594c04379bb7d3
[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 -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] 0dcdb4111c4cb3e499f6fd1634612f5dc04022874a3d39232b1943bf1c67eda8
[INFO] running `Command { std: "docker" "start" "-a" "0dcdb4111c4cb3e499f6fd1634612f5dc04022874a3d39232b1943bf1c67eda8", kill_on_drop: false }`
[INFO] [stderr]     Checking lynxlang v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/parser.rs:550:42
[INFO] [stdout]     |
[INFO] [stdout] 550 |                 hash_tuple.push((hash_key.deref().clone(), hash_value.deref().clone()));
[INFO] [stdout]     |                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `ast::Expression` does not implement `Deref`, so calling `deref` on `&ast::Expression` 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] 550 -                 hash_tuple.push((hash_key.deref().clone(), hash_value.deref().clone()));
[INFO] [stdout] 550 +                 hash_tuple.push((hash_key.clone(), hash_value.deref().clone()));
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `ast::Expression`, implement `Clone` for it
[INFO] [stdout]    --> src/ast.rs:29:1
[INFO] [stdout]     |
[INFO] [stdout] 29  + #[derive(Clone)]
[INFO] [stdout] 30  | pub enum Expression {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/parser.rs:550:70
[INFO] [stdout]     |
[INFO] [stdout] 550 |                 hash_tuple.push((hash_key.deref().clone(), hash_value.deref().clone()));
[INFO] [stdout]     |                                                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `ast::Expression` does not implement `Deref`, so calling `deref` on `&ast::Expression` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 550 -                 hash_tuple.push((hash_key.deref().clone(), hash_value.deref().clone()));
[INFO] [stdout] 550 +                 hash_tuple.push((hash_key.deref().clone(), hash_value.clone()));
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `ast::Expression`, implement `Clone` for it
[INFO] [stdout]    --> src/ast.rs:29:1
[INFO] [stdout]     |
[INFO] [stdout] 29  + #[derive(Clone)]
[INFO] [stdout] 30  | pub enum Expression {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/parser.rs:550:42
[INFO] [stdout]     |
[INFO] [stdout] 550 |                 hash_tuple.push((hash_key.deref().clone(), hash_value.deref().clone()));
[INFO] [stdout]     |                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `ast::Expression` does not implement `Deref`, so calling `deref` on `&ast::Expression` 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] 550 -                 hash_tuple.push((hash_key.deref().clone(), hash_value.deref().clone()));
[INFO] [stdout] 550 +                 hash_tuple.push((hash_key.clone(), hash_value.deref().clone()));
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `ast::Expression`, implement `Clone` for it
[INFO] [stdout]    --> src/ast.rs:29:1
[INFO] [stdout]     |
[INFO] [stdout] 29  + #[derive(Clone)]
[INFO] [stdout] 30  | pub enum Expression {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/parser.rs:550:70
[INFO] [stdout]     |
[INFO] [stdout] 550 |                 hash_tuple.push((hash_key.deref().clone(), hash_value.deref().clone()));
[INFO] [stdout]     |                                                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `ast::Expression` does not implement `Deref`, so calling `deref` on `&ast::Expression` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 550 -                 hash_tuple.push((hash_key.deref().clone(), hash_value.deref().clone()));
[INFO] [stdout] 550 +                 hash_tuple.push((hash_key.deref().clone(), hash_value.clone()));
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `ast::Expression`, implement `Clone` for it
[INFO] [stdout]    --> src/ast.rs:29:1
[INFO] [stdout]     |
[INFO] [stdout] 29  + #[derive(Clone)]
[INFO] [stdout] 30  | pub enum Expression {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "0dcdb4111c4cb3e499f6fd1634612f5dc04022874a3d39232b1943bf1c67eda8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dcdb4111c4cb3e499f6fd1634612f5dc04022874a3d39232b1943bf1c67eda8", kill_on_drop: false }`
[INFO] [stdout] 0dcdb4111c4cb3e499f6fd1634612f5dc04022874a3d39232b1943bf1c67eda8