[INFO] fetching crate nibbletree 0.2.0...
[INFO] checking nibbletree-0.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate nibbletree 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate nibbletree 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 nibbletree 0.2.0
[INFO] finished tweaking crates.io crate nibbletree 0.2.0
[INFO] tweaked toml for crates.io crate nibbletree 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate nibbletree 0.2.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 014ca1169d4a6ec5152f1b6074d7efd67629f364cd4bc85e543d174244ae75ff
[INFO] running `Command { std: "docker" "start" "-a" "014ca1169d4a6ec5152f1b6074d7efd67629f364cd4bc85e543d174244ae75ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "014ca1169d4a6ec5152f1b6074d7efd67629f364cd4bc85e543d174244ae75ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "014ca1169d4a6ec5152f1b6074d7efd67629f364cd4bc85e543d174244ae75ff", kill_on_drop: false }`
[INFO] [stdout] 014ca1169d4a6ec5152f1b6074d7efd67629f364cd4bc85e543d174244ae75ff
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b2d31ba9fc3463584341bb926b90db22d48ea54ad1bd05d6a7c485a1ad18f3e
[INFO] running `Command { std: "docker" "start" "-a" "6b2d31ba9fc3463584341bb926b90db22d48ea54ad1bd05d6a7c485a1ad18f3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]    Compiling rstest_reuse v0.6.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling relative-path v1.9.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]     Checking thin-vec v0.2.13
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]     Checking nibbletree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/node.rs:273:97
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + '_ {
[INFO] [stdout]     |                         -- lifetime `'a` declared here                                          ^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/node.rs:273:97
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + '_ {
[INFO] [stdout]     |                         -- lifetime `'a` declared here                                          ^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` 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 24.15s
[INFO] running `Command { std: "docker" "inspect" "6b2d31ba9fc3463584341bb926b90db22d48ea54ad1bd05d6a7c485a1ad18f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b2d31ba9fc3463584341bb926b90db22d48ea54ad1bd05d6a7c485a1ad18f3e", kill_on_drop: false }`
[INFO] [stdout] 6b2d31ba9fc3463584341bb926b90db22d48ea54ad1bd05d6a7c485a1ad18f3e