[INFO] fetching crate rtrees 0.1.0...
[INFO] checking rtrees-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate rtrees 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate rtrees 0.1.0 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 rtrees 0.1.0
[INFO] finished tweaking crates.io crate rtrees 0.1.0
[INFO] tweaked toml for crates.io crate rtrees 0.1.0 written to /workspace/builds/worker-1-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 10 packages to latest compatible versions
[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] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0a3015ff6796cb1a39f5bebf6025dc0739d1ffdcf31d583eef315029b4170d7f
[INFO] running `Command { std: "docker" "start" "-a" "0a3015ff6796cb1a39f5bebf6025dc0739d1ffdcf31d583eef315029b4170d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a3015ff6796cb1a39f5bebf6025dc0739d1ffdcf31d583eef315029b4170d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a3015ff6796cb1a39f5bebf6025dc0739d1ffdcf31d583eef315029b4170d7f", kill_on_drop: false }`
[INFO] [stdout] 0a3015ff6796cb1a39f5bebf6025dc0739d1ffdcf31d583eef315029b4170d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] fd643af9a9ab1653150d75c4133f5b631d3efa65b373fa4a2c8c30a84a678253
[INFO] running `Command { std: "docker" "start" "-a" "fd643af9a9ab1653150d75c4133f5b631d3efa65b373fa4a2c8c30a84a678253", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking rtrees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/ist/iter_ref.rs:31:61
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<'a, K: Ord + Copy, V> ISTRefIterator<'a, K, V> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] 31 |     pub(crate) fn new(root: &'a IST<K, V>) -> ISTRefIterator<K, V> {
[INFO] [stdout]    |                                                             ^ 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: elided lifetime has a name
[INFO] [stdout]   --> src/ist/iter_ref.rs:31:61
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<'a, K: Ord + Copy, V> ISTRefIterator<'a, K, V> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] 31 |     pub(crate) fn new(root: &'a IST<K, V>) -> ISTRefIterator<K, V> {
[INFO] [stdout]    |                                                             ^ 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: struct `Interval2` is never constructed
[INFO] [stdout]   --> src/ist/interval.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Interval2<T: Ord + Copy> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Interval2` has a derived impl for the trait `Clone`, 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interval2` is never constructed
[INFO] [stdout]   --> src/ist/interval.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Interval2<T: Ord + Copy> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Interval2` has a derived impl for the trait `Clone`, 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "fd643af9a9ab1653150d75c4133f5b631d3efa65b373fa4a2c8c30a84a678253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd643af9a9ab1653150d75c4133f5b631d3efa65b373fa4a2c8c30a84a678253", kill_on_drop: false }`
[INFO] [stdout] fd643af9a9ab1653150d75c4133f5b631d3efa65b373fa4a2c8c30a84a678253