[INFO] fetching crate obake_macros 1.0.5...
[INFO] checking obake_macros-1.0.5 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate obake_macros 1.0.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate obake_macros 1.0.5 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 obake_macros 1.0.5
[INFO] finished tweaking crates.io crate obake_macros 1.0.5
[INFO] tweaked toml for crates.io crate obake_macros 1.0.5 written to /workspace/builds/worker-0-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 5 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.79)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b789f6d5ceed07a9af5d8ce3a56f2031b2f067b535b2e64c5e34e86f414c986c
[INFO] running `Command { std: "docker" "start" "-a" "b789f6d5ceed07a9af5d8ce3a56f2031b2f067b535b2e64c5e34e86f414c986c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b789f6d5ceed07a9af5d8ce3a56f2031b2f067b535b2e64c5e34e86f414c986c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b789f6d5ceed07a9af5d8ce3a56f2031b2f067b535b2e64c5e34e86f414c986c", kill_on_drop: false }`
[INFO] [stdout] b789f6d5ceed07a9af5d8ce3a56f2031b2f067b535b2e64c5e34e86f414c986c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f07e14a505b17fd7cc641427e539cad7e93ed982a486942812afe93068d47227
[INFO] running `Command { std: "docker" "start" "-a" "f07e14a505b17fd7cc641427e539cad7e93ed982a486942812afe93068d47227", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking unicode-ident v1.0.13
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking obake_macros v1.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `proc_macro::TokenStream`
[INFO] [stdout]  --> src/internal.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use proc_macro::TokenStream;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proc_macro::TokenStream`
[INFO] [stdout]  --> src/internal.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use proc_macro::TokenStream;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/expand.rs:42:25
[INFO] [stdout]    |
[INFO] [stdout] 42 |             if let Some(mut terminator) = ty_path.path.segments.last_mut() {
[INFO] [stdout]    |                         ----^^^^^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/expand.rs:42:25
[INFO] [stdout]    |
[INFO] [stdout] 42 |             if let Some(mut terminator) = ty_path.path.segments.last_mut() {
[INFO] [stdout]    |                         ----^^^^^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace_token` is never read
[INFO] [stdout]    --> src/internal.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct VersionedFields {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 182 |     pub brace_token: syn::token::Brace,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VersionedFields` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace_token` is never read
[INFO] [stdout]    --> src/internal.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub struct VersionedVariants {
[INFO] [stdout]     |            ----------------- field in this struct
[INFO] [stdout] 202 |     pub brace_token: syn::token::Brace,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VersionedVariants` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace_token` is never read
[INFO] [stdout]    --> src/internal.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct VersionedFields {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 182 |     pub brace_token: syn::token::Brace,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VersionedFields` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace_token` is never read
[INFO] [stdout]    --> src/internal.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub struct VersionedVariants {
[INFO] [stdout]     |            ----------------- field in this struct
[INFO] [stdout] 202 |     pub brace_token: syn::token::Brace,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VersionedVariants` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "f07e14a505b17fd7cc641427e539cad7e93ed982a486942812afe93068d47227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f07e14a505b17fd7cc641427e539cad7e93ed982a486942812afe93068d47227", kill_on_drop: false }`
[INFO] [stdout] f07e14a505b17fd7cc641427e539cad7e93ed982a486942812afe93068d47227