[INFO] fetching crate maybe-owned 0.3.4... [INFO] checking maybe-owned-0.3.4 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate maybe-owned 0.3.4 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate maybe-owned 0.3.4 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 maybe-owned 0.3.4 [INFO] finished tweaking crates.io crate maybe-owned 0.3.4 [INFO] tweaked toml for crates.io crate maybe-owned 0.3.4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate maybe-owned 0.3.4 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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f90f162a8586401b2824740de00db0dc324de02762d802ff84bb84021e317bda [INFO] running `Command { std: "docker" "start" "-a" "f90f162a8586401b2824740de00db0dc324de02762d802ff84bb84021e317bda", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f90f162a8586401b2824740de00db0dc324de02762d802ff84bb84021e317bda", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f90f162a8586401b2824740de00db0dc324de02762d802ff84bb84021e317bda", kill_on_drop: false }` [INFO] [stdout] f90f162a8586401b2824740de00db0dc324de02762d802ff84bb84021e317bda [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 00ba3700b1f6d257edffd8b1c79fe9dd7dbd2bbc0f24dd49302e78a0c8185ed3 [INFO] running `Command { std: "docker" "start" "-a" "00ba3700b1f6d257edffd8b1c79fe9dd7dbd2bbc0f24dd49302e78a0c8185ed3", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling proc-macro2 v1.0.13 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling serde v1.0.110 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Compiling syn v1.0.23 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking maybe-owned v0.3.4 (/opt/rustwide/workdir) [INFO] [stderr] Compiling quote v1.0.6 [INFO] [stderr] Compiling serde_derive v1.0.110 [INFO] [stderr] Checking serde_json v1.0.53 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:630:17 [INFO] [stdout] | [INFO] [stdout] 630 | let _ = AsRef::::borrow(&v); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] 630 | let _ = >::borrow(&v); [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:633:17 [INFO] [stdout] | [INFO] [stdout] 633 | let _ = AsRef::::borrow(&v); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 633 | let _ = >::borrow(&v); [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:647:17 [INFO] [stdout] | [INFO] [stdout] 647 | let _ = AsMut::::borrow_mut(&mut v); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 647 | let _ = >::borrow_mut(&mut v); [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:516:25 [INFO] [stdout] | [INFO] [stdout] 516 | struct TestType(u8); [INFO] [stdout] | -------- ^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `TestType` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:523:25 [INFO] [stdout] | [INFO] [stdout] 523 | struct TestType(u8); [INFO] [stdout] | -------- ^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `TestType` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.32s [INFO] running `Command { std: "docker" "inspect" "00ba3700b1f6d257edffd8b1c79fe9dd7dbd2bbc0f24dd49302e78a0c8185ed3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00ba3700b1f6d257edffd8b1c79fe9dd7dbd2bbc0f24dd49302e78a0c8185ed3", kill_on_drop: false }` [INFO] [stdout] 00ba3700b1f6d257edffd8b1c79fe9dd7dbd2bbc0f24dd49302e78a0c8185ed3