[INFO] fetching crate percy-router-macro 0.1.5...
[INFO] checking percy-router-macro-0.1.5 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate percy-router-macro 0.1.5 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate percy-router-macro 0.1.5 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 percy-router-macro 0.1.5
[INFO] finished tweaking crates.io crate percy-router-macro 0.1.5
[INFO] tweaked toml for crates.io crate percy-router-macro 0.1.5 written to /workspace/builds/worker-4-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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (available: v1.0.86)
[INFO] [stderr]       Adding quote v0.6.13 (available: v1.0.37)
[INFO] [stderr]       Adding syn v0.15.44 (available: v2.0.79)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (available: v0.2.6)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0e4922c618bfab4b436fec3fc1c026f35254982a222da04ce4221c4eed4f7f54
[INFO] running `Command { std: "docker" "start" "-a" "0e4922c618bfab4b436fec3fc1c026f35254982a222da04ce4221c4eed4f7f54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e4922c618bfab4b436fec3fc1c026f35254982a222da04ce4221c4eed4f7f54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e4922c618bfab4b436fec3fc1c026f35254982a222da04ce4221c4eed4f7f54", kill_on_drop: false }`
[INFO] [stdout] 0e4922c618bfab4b436fec3fc1c026f35254982a222da04ce4221c4eed4f7f54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 933d287ffc213e19d7cb03fc52bf2eadda1b006c3f07ec117dfbe071cfc03abe
[INFO] running `Command { std: "docker" "start" "-a" "933d287ffc213e19d7cb03fc52bf2eadda1b006c3f07ec117dfbe071cfc03abe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking percy-router-macro v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `types`
[INFO] [stdout]   --> src/route_macro.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let types = as_param_types(&params);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_types`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path_params_map`
[INFO] [stdout]    --> src/route_macro.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let path_params_map: HashSet<String> = path_params.clone().into_iter().collect();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_path_params_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `types`
[INFO] [stdout]   --> src/route_macro.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let types = as_param_types(&params);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_types`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path_params_map`
[INFO] [stdout]    --> src/route_macro.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let path_params_map: HashSet<String> = path_params.clone().into_iter().collect();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_path_params_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pat`
[INFO] [stdout]    --> src/route_macro.rs:398:36
[INFO] [stdout]     |
[INFO] [stdout] 398 |                     Pat::Ident(ref pat) => &captured.ty,
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_pat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `equals`
[INFO] [stdout]    --> src/route_macro.rs:452:13
[INFO] [stdout]     |
[INFO] [stdout] 452 |         let equals = input.parse::<Token![=]>()?;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_equals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pat`
[INFO] [stdout]    --> src/route_macro.rs:398:36
[INFO] [stdout]     |
[INFO] [stdout] 398 |                     Pat::Ident(ref pat) => &captured.ty,
[INFO] [stdout]     |                                    ^^^ help: if this is intentional, prefix it with an underscore: `_pat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `equals`
[INFO] [stdout]    --> src/route_macro.rs:452:13
[INFO] [stdout]     |
[INFO] [stdout] 452 |         let equals = input.parse::<Token![=]>()?;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_equals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "933d287ffc213e19d7cb03fc52bf2eadda1b006c3f07ec117dfbe071cfc03abe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "933d287ffc213e19d7cb03fc52bf2eadda1b006c3f07ec117dfbe071cfc03abe", kill_on_drop: false }`
[INFO] [stdout] 933d287ffc213e19d7cb03fc52bf2eadda1b006c3f07ec117dfbe071cfc03abe