[INFO] fetching crate mvutils 0.7.6...
[INFO] checking mvutils-0.7.6 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate mvutils 0.7.6 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate mvutils 0.7.6 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 mvutils 0.7.6
[INFO] finished tweaking crates.io crate mvutils 0.7.6
[INFO] tweaked toml for crates.io crate mvutils 0.7.6 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]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[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] 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] 9ff85f40add7dfc7a9f3c8176e55e7093ebc3c142c3c0f52d4dd1c7a75492581
[INFO] running `Command { std: "docker" "start" "-a" "9ff85f40add7dfc7a9f3c8176e55e7093ebc3c142c3c0f52d4dd1c7a75492581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ff85f40add7dfc7a9f3c8176e55e7093ebc3c142c3c0f52d4dd1c7a75492581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ff85f40add7dfc7a9f3c8176e55e7093ebc3c142c3c0f52d4dd1c7a75492581", kill_on_drop: false }`
[INFO] [stdout] 9ff85f40add7dfc7a9f3c8176e55e7093ebc3c142c3c0f52d4dd1c7a75492581
[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] bce60e690f561bb5bc9347717c9b00060899f6113f6c26b5594b7264aa5be395
[INFO] running `Command { std: "docker" "start" "-a" "bce60e690f561bb5bc9347717c9b00060899f6113f6c26b5594b7264aa5be395", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking allocator-api2 v0.2.18
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking bytebuffer v2.3.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling mvutils-proc-macro v0.4.0
[INFO] [stderr]     Checking mvutils v0.7.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ordefault.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut am = self.inner.as_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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ordefault.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut am = self.inner.as_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: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:110:21
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 for i in 0..10 {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` 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 11.28s
[INFO] running `Command { std: "docker" "inspect" "bce60e690f561bb5bc9347717c9b00060899f6113f6c26b5594b7264aa5be395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bce60e690f561bb5bc9347717c9b00060899f6113f6c26b5594b7264aa5be395", kill_on_drop: false }`
[INFO] [stdout] bce60e690f561bb5bc9347717c9b00060899f6113f6c26b5594b7264aa5be395