[INFO] fetching crate index_alloc 0.1.1...
[INFO] checking index_alloc-0.1.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate index_alloc 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate index_alloc 0.1.1 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 index_alloc 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate index_alloc 0.1.1
[INFO] tweaked toml for crates.io crate index_alloc 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate index_alloc 0.1.1 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] 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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ec2cc9dd51867fadddad05b2154e9a62686a774b36b1c9ae6f2e96be06094d9
[INFO] running `Command { std: "docker" "start" "-a" "8ec2cc9dd51867fadddad05b2154e9a62686a774b36b1c9ae6f2e96be06094d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ec2cc9dd51867fadddad05b2154e9a62686a774b36b1c9ae6f2e96be06094d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ec2cc9dd51867fadddad05b2154e9a62686a774b36b1c9ae6f2e96be06094d9", kill_on_drop: false }`
[INFO] [stdout] 8ec2cc9dd51867fadddad05b2154e9a62686a774b36b1c9ae6f2e96be06094d9
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3861f1431e1e5f408a01b446f0b24c97f32d4d2ff88c4eaad9a785434e966c4
[INFO] running `Command { std: "docker" "start" "-a" "f3861f1431e1e5f408a01b446f0b24c97f32d4d2ff88c4eaad9a785434e966c4", kill_on_drop: false }`
[INFO] [stderr]     Checking index_alloc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/lib.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn try_boxed<'a, T, U>(
[INFO] [stdout]     |                      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 154 |     ) -> Result<Box<T, MEMORY_SIZE, INDEX_SIZE>, IndexError>
[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/lib.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn try_boxed<'a, T, U>(
[INFO] [stdout]     |                      -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 154 |     ) -> Result<Box<T, MEMORY_SIZE, INDEX_SIZE>, IndexError>
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_weak` is never used
[INFO] [stdout]   --> examples/rc_graph.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'a, T> Link<'a, T> {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn new_weak(node: Weak<'a, Node<'a, T>, MEMORY_SIZE, INDEX_SIZE>) -> 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "f3861f1431e1e5f408a01b446f0b24c97f32d4d2ff88c4eaad9a785434e966c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3861f1431e1e5f408a01b446f0b24c97f32d4d2ff88c4eaad9a785434e966c4", kill_on_drop: false }`
[INFO] [stdout] f3861f1431e1e5f408a01b446f0b24c97f32d4d2ff88c4eaad9a785434e966c4