[INFO] fetching crate rust-kpdb 0.5.0...
[INFO] checking rust-kpdb-0.5.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate rust-kpdb 0.5.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate rust-kpdb 0.5.0 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 rust-kpdb 0.5.0
[INFO] finished tweaking crates.io crate rust-kpdb 0.5.0
[INFO] tweaked toml for crates.io crate rust-kpdb 0.5.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 74 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
[INFO] [stderr]       Adding env_logger v0.8.4 (available: v0.11.5)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (available: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (available: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (available: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (available: v0.8.3)
[INFO] [stderr]       Adding time v0.1.45 (available: v0.3.36)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-core v0.52.0 (available: v0.58.0)
[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]     Blocking waiting for file lock on package cache
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99da22038aa34fd97adb99d02f13d3dc0f1ad410174ffcc704ded4d9021d3841
[INFO] running `Command { std: "docker" "start" "-a" "99da22038aa34fd97adb99d02f13d3dc0f1ad410174ffcc704ded4d9021d3841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99da22038aa34fd97adb99d02f13d3dc0f1ad410174ffcc704ded4d9021d3841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99da22038aa34fd97adb99d02f13d3dc0f1ad410174ffcc704ded4d9021d3841", kill_on_drop: false }`
[INFO] [stdout] 99da22038aa34fd97adb99d02f13d3dc0f1ad410174ffcc704ded4d9021d3841
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbb3913221ba7ed990345f06bdf9df15bd22c7b8be7adc32b7467ed56ab815e6
[INFO] running `Command { std: "docker" "start" "-a" "dbb3913221ba7ed990345f06bdf9df15bd22c7b8be7adc32b7467ed56ab815e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking uuid v1.10.0
[INFO] [stderr]     Checking flate2 v1.0.33
[INFO] [stderr]     Checking secstr v0.5.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking xml-rs v0.8.22
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking rust-kpdb v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `start` is never used
[INFO] [stdout]   --> src/io/log.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Log {
[INFO] [stdout]    |           --- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn start(&mut self);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/types/group.rs:390:36
[INFO] [stdout]     |
[INFO] [stdout] 390 |         let group = Group::new(name.clone());
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.32s
[INFO] running `Command { std: "docker" "inspect" "dbb3913221ba7ed990345f06bdf9df15bd22c7b8be7adc32b7467ed56ab815e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb3913221ba7ed990345f06bdf9df15bd22c7b8be7adc32b7467ed56ab815e6", kill_on_drop: false }`
[INFO] [stdout] dbb3913221ba7ed990345f06bdf9df15bd22c7b8be7adc32b7467ed56ab815e6