[INFO] fetching crate ecstatic 0.0.2...
[INFO] checking ecstatic-0.0.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate ecstatic 0.0.2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate ecstatic 0.0.2 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 ecstatic 0.0.2
[INFO] finished tweaking crates.io crate ecstatic 0.0.2
[INFO] tweaked toml for crates.io crate ecstatic 0.0.2 written to /workspace/builds/worker-0-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] 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] [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 950fed46541cb417a9402f0cc0a74418276d17fdc8a7cf0f3b1b362a6afb2e97
[INFO] running `Command { std: "docker" "start" "-a" "950fed46541cb417a9402f0cc0a74418276d17fdc8a7cf0f3b1b362a6afb2e97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "950fed46541cb417a9402f0cc0a74418276d17fdc8a7cf0f3b1b362a6afb2e97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "950fed46541cb417a9402f0cc0a74418276d17fdc8a7cf0f3b1b362a6afb2e97", kill_on_drop: false }`
[INFO] [stdout] 950fed46541cb417a9402f0cc0a74418276d17fdc8a7cf0f3b1b362a6afb2e97
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c0033dea5508cb52369ae6b1e9e64a60fc29c89bb6f489de9ea68e3dcd342de
[INFO] running `Command { std: "docker" "start" "-a" "8c0033dea5508cb52369ae6b1e9e64a60fc29c89bb6f489de9ea68e3dcd342de", kill_on_drop: false }`
[INFO] [stderr]     Checking ecstatic v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/traits.rs:235:40
[INFO] [stdout]     |
[INFO] [stdout] 230 | impl<'a, WD, T> ComponentProviderRec<'a, ReadComponent<'a, T>> for WD
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 235 |     fn fetch(&'a self) -> ReadComponent<T> {
[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/traits.rs:247:41
[INFO] [stdout]     |
[INFO] [stdout] 242 | impl<'a, WD, T> ComponentProviderRec<'a, WriteComponent<'a, T>> for WD
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 247 |     fn fetch(&'a self) -> WriteComponent<T> {
[INFO] [stdout]     |                                         ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/traits.rs:235:40
[INFO] [stdout]     |
[INFO] [stdout] 230 | impl<'a, WD, T> ComponentProviderRec<'a, ReadComponent<'a, T>> for WD
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 235 |     fn fetch(&'a self) -> ReadComponent<T> {
[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/traits.rs:247:41
[INFO] [stdout]     |
[INFO] [stdout] 242 | impl<'a, WD, T> ComponentProviderRec<'a, WriteComponent<'a, T>> for WD
[INFO] [stdout]     |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 247 |     fn fetch(&'a self) -> WriteComponent<T> {
[INFO] [stdout]     |                                         ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_bit`, `set_bit`, `clear_bit`, and `and` are never used
[INFO] [stdout]    --> src/bitset.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub trait BitVec {
[INFO] [stdout]     |           ------ methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn get_bit(&self, i: usize) -> bool;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 110 |     /// Set bit `i` to `true`.
[INFO] [stdout] 111 |     fn set_bit(&mut self, i: usize);
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 112 |     /// Set bit `i` to `false`.
[INFO] [stdout] 113 |     fn clear_bit(&mut self, i: usize);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 114 |
[INFO] [stdout] 115 |     fn and(&self, other: &Self) -> Self;
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `iter` is never used
[INFO] [stdout]   --> src/bitset.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait BitSet {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn iter(&self) -> Self::Iter;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_bit`, `set_bit`, `clear_bit`, and `and` are never used
[INFO] [stdout]    --> src/bitset.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub trait BitVec {
[INFO] [stdout]     |           ------ methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn get_bit(&self, i: usize) -> bool;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 110 |     /// Set bit `i` to `true`.
[INFO] [stdout] 111 |     fn set_bit(&mut self, i: usize);
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 112 |     /// Set bit `i` to `false`.
[INFO] [stdout] 113 |     fn clear_bit(&mut self, i: usize);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 114 |
[INFO] [stdout] 115 |     fn and(&self, other: &Self) -> Self;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "8c0033dea5508cb52369ae6b1e9e64a60fc29c89bb6f489de9ea68e3dcd342de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c0033dea5508cb52369ae6b1e9e64a60fc29c89bb6f489de9ea68e3dcd342de", kill_on_drop: false }`
[INFO] [stdout] 8c0033dea5508cb52369ae6b1e9e64a60fc29c89bb6f489de9ea68e3dcd342de