[INFO] fetching crate error-window-macro 1.0.0...
[INFO] checking error-window-macro-1.0.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate error-window-macro 1.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate error-window-macro 1.0.0 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 error-window-macro 1.0.0
[INFO] finished tweaking crates.io crate error-window-macro 1.0.0
[INFO] tweaked toml for crates.io crate error-window-macro 1.0.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[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] 696c447d407ccb10a44ed1aa5ddb93d9b8ac6a9fa5455260fc263e5c6e621035
[INFO] running `Command { std: "docker" "start" "-a" "696c447d407ccb10a44ed1aa5ddb93d9b8ac6a9fa5455260fc263e5c6e621035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "696c447d407ccb10a44ed1aa5ddb93d9b8ac6a9fa5455260fc263e5c6e621035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "696c447d407ccb10a44ed1aa5ddb93d9b8ac6a9fa5455260fc263e5c6e621035", kill_on_drop: false }`
[INFO] [stdout] 696c447d407ccb10a44ed1aa5ddb93d9b8ac6a9fa5455260fc263e5c6e621035
[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] 4c94ea44f7f8626e2fbd9e9e39cee2022fa54562166b64b93406b0db9596313f
[INFO] running `Command { std: "docker" "start" "-a" "4c94ea44f7f8626e2fbd9e9e39cee2022fa54562166b64b93406b0db9596313f", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.13
[INFO] [stderr]     Checking proc-macro2 v1.0.86
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking syn v2.0.79
[INFO] [stderr]     Checking error-window-macro v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `outer_attrs` and `inner_attrs` are never read
[INFO] [stdout]   --> src/entry.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | struct ItemFn {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 79 |     outer_attrs: Vec<Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     inner_attrs: Vec<Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `attrs` is never used
[INFO] [stdout]   --> src/entry.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | impl ItemFn {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 88 |     /// Access all attributes of the function item.
[INFO] [stdout] 89 |     fn attrs(&self) -> impl Iterator<Item = &Attribute> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `outer_attrs` and `inner_attrs` are never read
[INFO] [stdout]   --> src/entry.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | struct ItemFn {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 79 |     outer_attrs: Vec<Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     inner_attrs: Vec<Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `attrs` is never used
[INFO] [stdout]   --> src/entry.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | impl ItemFn {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 88 |     /// Access all attributes of the function item.
[INFO] [stdout] 89 |     fn attrs(&self) -> impl Iterator<Item = &Attribute> {
[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 2.21s
[INFO] running `Command { std: "docker" "inspect" "4c94ea44f7f8626e2fbd9e9e39cee2022fa54562166b64b93406b0db9596313f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c94ea44f7f8626e2fbd9e9e39cee2022fa54562166b64b93406b0db9596313f", kill_on_drop: false }`
[INFO] [stdout] 4c94ea44f7f8626e2fbd9e9e39cee2022fa54562166b64b93406b0db9596313f