[INFO] fetching crate renege 0.1.2...
[INFO] checking renege-0.1.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate renege 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate renege 0.1.2 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 renege 0.1.2
[INFO] finished tweaking crates.io crate renege 0.1.2
[INFO] tweaked toml for crates.io crate renege 0.1.2 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] 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-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] 6af7afbf15492e243b2c806f6a86103084433c37736e679d8a345f62c98507da
[INFO] running `Command { std: "docker" "start" "-a" "6af7afbf15492e243b2c806f6a86103084433c37736e679d8a345f62c98507da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6af7afbf15492e243b2c806f6a86103084433c37736e679d8a345f62c98507da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6af7afbf15492e243b2c806f6a86103084433c37736e679d8a345f62c98507da", kill_on_drop: false }`
[INFO] [stdout] 6af7afbf15492e243b2c806f6a86103084433c37736e679d8a345f62c98507da
[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] 459c4b3f30a5d04c9a20b69761d3e071eb59f89df72f6d64e05f85addf7f2715
[INFO] running `Command { std: "docker" "start" "-a" "459c4b3f30a5d04c9a20b69761d3e071eb59f89df72f6d64e05f85addf7f2715", kill_on_drop: false }`
[INFO] [stderr]     Checking renege v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/internal.rs:858:9
[INFO] [stdout]     |
[INFO] [stdout] 857 |         todo!();
[INFO] [stdout]     |         ------- any code following this expression is unreachable
[INFO] [stdout] 858 |         return never();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/internal.rs:877:9
[INFO] [stdout]     |
[INFO] [stdout] 876 |         todo!();
[INFO] [stdout]     |         ------- any code following this expression is unreachable
[INFO] [stdout] 877 |         return never();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/internal.rs:858:9
[INFO] [stdout]     |
[INFO] [stdout] 857 |         todo!();
[INFO] [stdout]     |         ------- any code following this expression is unreachable
[INFO] [stdout] 858 |         return never();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/internal.rs:877:9
[INFO] [stdout]     |
[INFO] [stdout] 876 |         todo!();
[INFO] [stdout]     |         ------- any code following this expression is unreachable
[INFO] [stdout] 877 |         return never();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/internal.rs:794:12
[INFO] [stdout]     |
[INFO] [stdout] 794 |         Ok(res) => {
[INFO] [stdout]     |            ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `alloc`
[INFO] [stdout]    --> src/internal.rs:951:11
[INFO] [stdout]     |
[INFO] [stdout] 951 | fn unlock(alloc: &mut ThreadAllocator, block: TokenBlockRef<'static>, ext_id: ExtTokenId) {
[INFO] [stdout]     |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/internal.rs:794:12
[INFO] [stdout]     |
[INFO] [stdout] 794 |         Ok(res) => {
[INFO] [stdout]     |            ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `alloc`
[INFO] [stdout]    --> src/internal.rs:951:11
[INFO] [stdout]     |
[INFO] [stdout] 951 | fn unlock(alloc: &mut ThreadAllocator, block: TokenBlockRef<'static>, ext_id: ExtTokenId) {
[INFO] [stdout]     |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc`
[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 0.28s
[INFO] running `Command { std: "docker" "inspect" "459c4b3f30a5d04c9a20b69761d3e071eb59f89df72f6d64e05f85addf7f2715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "459c4b3f30a5d04c9a20b69761d3e071eb59f89df72f6d64e05f85addf7f2715", kill_on_drop: false }`
[INFO] [stdout] 459c4b3f30a5d04c9a20b69761d3e071eb59f89df72f6d64e05f85addf7f2715