[INFO] fetching crate purua 0.0.2...
[INFO] checking purua-0.0.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate purua 0.0.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate purua 0.0.2 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 purua 0.0.2
[INFO] finished tweaking crates.io crate purua 0.0.2
[INFO] tweaked toml for crates.io crate purua 0.0.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate purua 0.0.2 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]     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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0042a8015801d39c11f8f38d1d06c88b7d386283f62ed6a75fa280b63709bcd9
[INFO] running `Command { std: "docker" "start" "-a" "0042a8015801d39c11f8f38d1d06c88b7d386283f62ed6a75fa280b63709bcd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0042a8015801d39c11f8f38d1d06c88b7d386283f62ed6a75fa280b63709bcd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0042a8015801d39c11f8f38d1d06c88b7d386283f62ed6a75fa280b63709bcd9", kill_on_drop: false }`
[INFO] [stdout] 0042a8015801d39c11f8f38d1d06c88b7d386283f62ed6a75fa280b63709bcd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 48eb6d7b6c17d052af9a1540a46e779b4273090e097acf0a756a1ab939fc4d84
[INFO] running `Command { std: "docker" "start" "-a" "48eb6d7b6c17d052af9a1540a46e779b4273090e097acf0a756a1ab939fc4d84", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking combine v4.5.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking purua v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/state.rs:325:13
[INFO] [stdout]     |
[INFO] [stdout] 325 |         let mut f = self.frame_stack.last_mut().unwrap();
[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 `is_global` is never read
[INFO] [stdout]   --> src/function.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct LuaFunction {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 25 |     is_global: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LuaFunction` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/state.rs:325:13
[INFO] [stdout]     |
[INFO] [stdout] 325 |         let mut f = self.frame_stack.last_mut().unwrap();
[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 `is_global` is never read
[INFO] [stdout]   --> src/function.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct LuaFunction {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 25 |     is_global: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LuaFunction` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.49s
[INFO] running `Command { std: "docker" "inspect" "48eb6d7b6c17d052af9a1540a46e779b4273090e097acf0a756a1ab939fc4d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48eb6d7b6c17d052af9a1540a46e779b4273090e097acf0a756a1ab939fc4d84", kill_on_drop: false }`
[INFO] [stdout] 48eb6d7b6c17d052af9a1540a46e779b4273090e097acf0a756a1ab939fc4d84