[INFO] fetching crate hbs-acc-pow 0.2.0...
[INFO] checking hbs-acc-pow-0.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate hbs-acc-pow 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate hbs-acc-pow 0.2.0 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 hbs-acc-pow 0.2.0
[INFO] finished tweaking crates.io crate hbs-acc-pow 0.2.0
[INFO] tweaked toml for crates.io crate hbs-acc-pow 0.2.0 written to /workspace/builds/worker-6-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 8 packages to latest compatible versions
[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] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 45f37bb0cb6b74c3a945b6d7f4645bf32716663203d828f8bd8119d208295d03
[INFO] running `Command { std: "docker" "start" "-a" "45f37bb0cb6b74c3a945b6d7f4645bf32716663203d828f8bd8119d208295d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45f37bb0cb6b74c3a945b6d7f4645bf32716663203d828f8bd8119d208295d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f37bb0cb6b74c3a945b6d7f4645bf32716663203d828f8bd8119d208295d03", kill_on_drop: false }`
[INFO] [stdout] 45f37bb0cb6b74c3a945b6d7f4645bf32716663203d828f8bd8119d208295d03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] dfdf4f45f1d2952eac3926f1e1c48147bf5bab9658570ac5b1f52402f4af7179
[INFO] running `Command { std: "docker" "start" "-a" "dfdf4f45f1d2952eac3926f1e1c48147bf5bab9658570ac5b1f52402f4af7179", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling cmake v0.1.51
[INFO] [stderr]     Checking hbs-common-sys v0.2.1
[INFO] [stderr]    Compiling hbs-builder v0.2.1
[INFO] [stderr]    Compiling hbs-acc-pow-sys v0.2.1
[INFO] [stderr]     Checking hbs-acc-pow v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> lib.rs:30:31
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut hb = mem::uninitialized();
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `heartbeat_acc_pow_context` does not permit being left uninitialized
[INFO] [stdout]   --> lib.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut hb = mem::uninitialized();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this code causes undefined behavior when executed
[INFO] [stdout]    |                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> lib.rs:30:31
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut hb = mem::uninitialized();
[INFO] [stdout]    |                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `heartbeat_acc_pow_context` does not permit being left uninitialized
[INFO] [stdout]   --> lib.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |             let mut hb = mem::uninitialized();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this code causes undefined behavior when executed
[INFO] [stdout]    |                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `received_cb` should have an upper case name
[INFO] [stdout]    --> lib.rs:251:20
[INFO] [stdout]     |
[INFO] [stdout] 251 |         static mut received_cb: bool = false;
[INFO] [stdout]     |                    ^^^^^^^^^^^ help: convert the identifier to upper case: `RECEIVED_CB`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `Command { std: "docker" "inspect" "dfdf4f45f1d2952eac3926f1e1c48147bf5bab9658570ac5b1f52402f4af7179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfdf4f45f1d2952eac3926f1e1c48147bf5bab9658570ac5b1f52402f4af7179", kill_on_drop: false }`
[INFO] [stdout] dfdf4f45f1d2952eac3926f1e1c48147bf5bab9658570ac5b1f52402f4af7179