[INFO] fetching crate rhook 0.8.0...
[INFO] checking rhook-0.8.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate rhook 0.8.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate rhook 0.8.0 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 rhook 0.8.0
[INFO] finished tweaking crates.io crate rhook 0.8.0
[INFO] tweaked toml for crates.io crate rhook 0.8.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate rhook 0.8.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7ed2233335616cf4b59a9c938736fb2c37830fa7be94e8508bf3df822bbc4ff0
[INFO] running `Command { std: "docker" "start" "-a" "7ed2233335616cf4b59a9c938736fb2c37830fa7be94e8508bf3df822bbc4ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ed2233335616cf4b59a9c938736fb2c37830fa7be94e8508bf3df822bbc4ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ed2233335616cf4b59a9c938736fb2c37830fa7be94e8508bf3df822bbc4ff0", kill_on_drop: false }`
[INFO] [stdout] 7ed2233335616cf4b59a9c938736fb2c37830fa7be94e8508bf3df822bbc4ff0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 556e7b7091343836e2462bbb341a4306854628ae9b58731a098d4f9f94d8aceb
[INFO] running `Command { std: "docker" "start" "-a" "556e7b7091343836e2462bbb341a4306854628ae9b58731a098d4f9f94d8aceb", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking rhook v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> examples/multithread.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 .unwrap();
[INFO] [stdout]    |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     let t1 = std::thread::spawn(|| command!("hello"));
[INFO] [stdout]    |                                    ----------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `command` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> examples/multithread.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 .unwrap();
[INFO] [stdout]    |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     let t2 = std::thread::spawn(|| command!("bye"));
[INFO] [stdout]    |                                    --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `command` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.91s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rhook v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "556e7b7091343836e2462bbb341a4306854628ae9b58731a098d4f9f94d8aceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "556e7b7091343836e2462bbb341a4306854628ae9b58731a098d4f9f94d8aceb", kill_on_drop: false }`
[INFO] [stdout] 556e7b7091343836e2462bbb341a4306854628ae9b58731a098d4f9f94d8aceb