[INFO] fetching crate perftool 0.2.0... [INFO] checking perftool-0.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate perftool 0.2.0 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate perftool 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 perftool 0.2.0 [INFO] finished tweaking crates.io crate perftool 0.2.0 [INFO] tweaked toml for crates.io crate perftool 0.2.0 written to /workspace/builds/worker-2-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 72 packages to latest compatible versions [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding bytes v0.6.0 (available: v1.7.2) [INFO] [stderr] Adding env_logger v0.8.4 (available: v0.11.5) [INFO] [stderr] Adding hermit-abi v0.1.19 (available: v0.4.0) [INFO] [stderr] Adding hermit-abi v0.3.9 (available: v0.4.0) [INFO] [stderr] Adding mio v0.7.14 (available: v1.0.2) [INFO] [stderr] Adding miow v0.3.7 (available: v0.6.0) [INFO] [stderr] Adding ntapi v0.3.7 (available: v0.4.1) [INFO] [stderr] Adding parking_lot v0.11.2 (available: v0.12.3) [INFO] [stderr] Adding parking_lot_core v0.8.6 (available: v0.9.10) [INFO] [stderr] Adding redox_syscall v0.2.16 (available: v0.5.6) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.79) [INFO] [stderr] Adding tokio v0.3.7 (available: v1.40.0) [INFO] [stderr] Adding tokio-macros v0.3.2 (available: v2.4.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1) [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] 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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 44a19822657ec68b3765d3de4821bf177170accc69d577d38d6e073fbaa7c97f [INFO] running `Command { std: "docker" "start" "-a" "44a19822657ec68b3765d3de4821bf177170accc69d577d38d6e073fbaa7c97f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "44a19822657ec68b3765d3de4821bf177170accc69d577d38d6e073fbaa7c97f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "44a19822657ec68b3765d3de4821bf177170accc69d577d38d6e073fbaa7c97f", kill_on_drop: false }` [INFO] [stdout] 44a19822657ec68b3765d3de4821bf177170accc69d577d38d6e073fbaa7c97f [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 09eb5219053ac880df52fad2e84e0f5091f5143819a88ea205fc7ac335f2f9c9 [INFO] running `Command { std: "docker" "start" "-a" "09eb5219053ac880df52fad2e84e0f5091f5143819a88ea205fc7ac335f2f9c9", kill_on_drop: false }` [INFO] [stderr] Compiling parking_lot_core v0.8.6 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking instant v0.1.13 [INFO] [stderr] Checking regex-syntax v0.8.4 [INFO] [stderr] Compiling tokio v0.3.7 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking bytes v0.6.0 [INFO] [stderr] Compiling syn v2.0.79 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Compiling tokio-macros v0.3.2 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking regex v1.10.6 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking perftool v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::Rng` [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use rand::Rng; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:167:44 [INFO] [stdout] | [INFO] [stdout] 167 | Ok(Err(msg)) => assert!(false, msg), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 167 | Ok(Err(msg)) => assert!(false, "{}", msg), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.32s [INFO] running `Command { std: "docker" "inspect" "09eb5219053ac880df52fad2e84e0f5091f5143819a88ea205fc7ac335f2f9c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09eb5219053ac880df52fad2e84e0f5091f5143819a88ea205fc7ac335f2f9c9", kill_on_drop: false }` [INFO] [stdout] 09eb5219053ac880df52fad2e84e0f5091f5143819a88ea205fc7ac335f2f9c9