[INFO] fetching crate prepona 0.1.0...
[INFO] checking prepona-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate prepona 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate prepona 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 prepona 0.1.0
[INFO] finished tweaking crates.io crate prepona 0.1.0
[INFO] tweaked toml for crates.io crate prepona 0.1.0 written to /workspace/builds/worker-4-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 4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5337afeb5bf97c9bdb8ed40c1dd92e9526559893978c36b52d3cb3b28a0dbbb2
[INFO] running `Command { std: "docker" "start" "-a" "5337afeb5bf97c9bdb8ed40c1dd92e9526559893978c36b52d3cb3b28a0dbbb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5337afeb5bf97c9bdb8ed40c1dd92e9526559893978c36b52d3cb3b28a0dbbb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5337afeb5bf97c9bdb8ed40c1dd92e9526559893978c36b52d3cb3b28a0dbbb2", kill_on_drop: false }`
[INFO] [stdout] 5337afeb5bf97c9bdb8ed40c1dd92e9526559893978c36b52d3cb3b28a0dbbb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a6a037fc39763c9f30e8a9175925ed8a9e6e34691cfc1e72c5bfd44c94abff69
[INFO] running `Command { std: "docker" "start" "-a" "a6a037fc39763c9f30e8a9175925ed8a9e6e34691cfc1e72c5bfd44c94abff69", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling anyhow v1.0.89
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking magnitude v0.3.2
[INFO] [stderr]     Checking prepona v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/algo/mst/kruskal.rs:93:18
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn execute<'a, G, W: Ord, E: Edge<W>>(
[INFO] [stdout]    |                    -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 93 |     ) -> Subgraph<W, E, UndirectedEdge, G>
[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/algo/vertex_edge_cut.rs:90:82
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl<'a, W, E: Edge<W>> VertexEdgeCut<'a, W, E> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn execute<G>(mut self, graph: &'a G) -> (Vec<usize>, Vec<(usize, usize, &E)>)
[INFO] [stdout]    |                                                                                  ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/algo/mst/kruskal.rs:93:18
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn execute<'a, G, W: Ord, E: Edge<W>>(
[INFO] [stdout]    |                    -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 93 |     ) -> Subgraph<W, E, UndirectedEdge, G>
[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/algo/vertex_edge_cut.rs:90:82
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl<'a, W, E: Edge<W>> VertexEdgeCut<'a, W, E> {
[INFO] [stdout]    |      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fn execute<G>(mut self, graph: &'a G) -> (Vec<usize>, Vec<(usize, usize, &E)>)
[INFO] [stdout]    |                                                                                  ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "a6a037fc39763c9f30e8a9175925ed8a9e6e34691cfc1e72c5bfd44c94abff69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a037fc39763c9f30e8a9175925ed8a9e6e34691cfc1e72c5bfd44c94abff69", kill_on_drop: false }`
[INFO] [stdout] a6a037fc39763c9f30e8a9175925ed8a9e6e34691cfc1e72c5bfd44c94abff69