[INFO] fetching crate ruver 0.1.7...
[INFO] checking ruver-0.1.7 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate ruver 0.1.7 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate ruver 0.1.7 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 ruver 0.1.7
[INFO] finished tweaking crates.io crate ruver 0.1.7
[INFO] tweaked toml for crates.io crate ruver 0.1.7 written to /workspace/builds/worker-0-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] 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3a196903cc51c13c0f5a6d62a8d6e442a42762c8e5d36d382b46737727a7b2cf
[INFO] running `Command { std: "docker" "start" "-a" "3a196903cc51c13c0f5a6d62a8d6e442a42762c8e5d36d382b46737727a7b2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a196903cc51c13c0f5a6d62a8d6e442a42762c8e5d36d382b46737727a7b2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a196903cc51c13c0f5a6d62a8d6e442a42762c8e5d36d382b46737727a7b2cf", kill_on_drop: false }`
[INFO] [stdout] 3a196903cc51c13c0f5a6d62a8d6e442a42762c8e5d36d382b46737727a7b2cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e5e03cd2b99cb826df33ee3e4d4bdd9260a3baa25f7fa31b72f232c8154327fd
[INFO] running `Command { std: "docker" "start" "-a" "e5e03cd2b99cb826df33ee3e4d4bdd9260a3baa25f7fa31b72f232c8154327fd", kill_on_drop: false }`
[INFO] [stderr]     Checking ruver v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/lib.rs:264:22
[INFO] [stdout]     |
[INFO] [stdout] 264 |             Ok(t) => (t),
[INFO] [stdout]     |                      ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 264 -             Ok(t) => (t),
[INFO] [stdout] 264 +             Ok(t) => t,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 | type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/lib.rs:264:22
[INFO] [stdout]     |
[INFO] [stdout] 264 |             Ok(t) => (t),
[INFO] [stdout]     |                      ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 264 -             Ok(t) => (t),
[INFO] [stdout] 264 +             Ok(t) => t,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 27 | type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:171:27
[INFO] [stdout]     |
[INFO] [stdout] 171 |                     error.description()
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:171:27
[INFO] [stdout]     |
[INFO] [stdout] 171 |                     error.description()
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:253:66
[INFO] [stdout]     |
[INFO] [stdout] 253 |             eprintln!("set_read_timeout call failed:\n{}", error.description())
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:253:66
[INFO] [stdout]     |
[INFO] [stdout] 253 |             eprintln!("set_read_timeout call failed:\n{}", error.description())
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:259:67
[INFO] [stdout]     |
[INFO] [stdout] 259 |             eprintln!("set_write_timeout call failed:\n{}", error.description())
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:268:27
[INFO] [stdout]     |
[INFO] [stdout] 268 |                     error.description()
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:259:67
[INFO] [stdout]     |
[INFO] [stdout] 259 |             eprintln!("set_write_timeout call failed:\n{}", error.description())
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:268:27
[INFO] [stdout]     |
[INFO] [stdout] 268 |                     error.description()
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 error.description()
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |                     error.description()
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 error.description()
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 |                     error.description()
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "e5e03cd2b99cb826df33ee3e4d4bdd9260a3baa25f7fa31b72f232c8154327fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5e03cd2b99cb826df33ee3e4d4bdd9260a3baa25f7fa31b72f232c8154327fd", kill_on_drop: false }`
[INFO] [stdout] e5e03cd2b99cb826df33ee3e4d4bdd9260a3baa25f7fa31b72f232c8154327fd