[INFO] fetching crate mileage 0.1.1...
[INFO] checking mileage-0.1.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate mileage 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate mileage 0.1.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mileage 0.1.1
[INFO] finished tweaking crates.io crate mileage 0.1.1
[INFO] tweaked toml for crates.io crate mileage 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 78 packages to latest compatible versions
[INFO] [stderr]       Adding anes v0.1.6 (available: v0.2.0)
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.13.0)
[INFO] [stderr]       Adding itertools v0.11.0 (available: v0.13.0)
[INFO] [stderr]       Adding radium v0.7.0 (available: v1.1.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] [stderr]       Adding wyz v0.5.1 (available: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb16316bed28d5725725e61574d2d6a76e18d082e1e06cf7478db36e1c8c86f5
[INFO] running `Command { std: "docker" "start" "-a" "bb16316bed28d5725725e61574d2d6a76e18d082e1e06cf7478db36e1c8c86f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb16316bed28d5725725e61574d2d6a76e18d082e1e06cf7478db36e1c8c86f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb16316bed28d5725725e61574d2d6a76e18d082e1e06cf7478db36e1c8c86f5", kill_on_drop: false }`
[INFO] [stdout] bb16316bed28d5725725e61574d2d6a76e18d082e1e06cf7478db36e1c8c86f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ac0ef7be1f102a46e5e994121651d4903e47fbe02472902e0683ccd12a4df88
[INFO] running `Command { std: "docker" "start" "-a" "1ac0ef7be1f102a46e5e994121651d4903e47fbe02472902e0683ccd12a4df88", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking mileage v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/range/iter.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         ((if self.low <= BEFORE_SURROGATE && self.high >= AFTER_SURROGATE {
[INFO] [stdout]     |         ^
[INFO] [stdout] ...
[INFO] [stdout] 122 |         }) as usize)
[INFO] [stdout]     |                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 118 ~         (if self.low <= BEFORE_SURROGATE && self.high >= AFTER_SURROGATE {
[INFO] [stdout] 119 |             len - (AFTER_SURROGATE as u32 - (BEFORE_SURROGATE as u32 + 1))
[INFO] [stdout] 120 |         } else {
[INFO] [stdout] 121 |             len
[INFO] [stdout] 122 ~         }) as usize
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/range/iter.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         ((if self.low <= BEFORE_SURROGATE && self.high >= AFTER_SURROGATE {
[INFO] [stdout]     |         ^
[INFO] [stdout] ...
[INFO] [stdout] 122 |         }) as usize)
[INFO] [stdout]     |                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 118 ~         (if self.low <= BEFORE_SURROGATE && self.high >= AFTER_SURROGATE {
[INFO] [stdout] 119 |             len - (AFTER_SURROGATE as u32 - (BEFORE_SURROGATE as u32 + 1))
[INFO] [stdout] 120 |         } else {
[INFO] [stdout] 121 |             len
[INFO] [stdout] 122 ~         }) as usize
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BenchmarkGroup`
[INFO] [stdout]  --> benches/range_iter.rs:6:73
[INFO] [stdout]   |
[INFO] [stdout] 6 |         black_box, criterion_group, criterion_main, BatchSize, Bencher, BenchmarkGroup, Criterion,
[INFO] [stdout]   |                                                                         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.20s
[INFO] running `Command { std: "docker" "inspect" "1ac0ef7be1f102a46e5e994121651d4903e47fbe02472902e0683ccd12a4df88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac0ef7be1f102a46e5e994121651d4903e47fbe02472902e0683ccd12a4df88", kill_on_drop: false }`
[INFO] [stdout] 1ac0ef7be1f102a46e5e994121651d4903e47fbe02472902e0683ccd12a4df88