[INFO] fetching crate aahc 0.1.0...
[INFO] checking aahc-0.1.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate aahc 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate aahc 0.1.0 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 aahc 0.1.0
[INFO] finished tweaking crates.io crate aahc 0.1.0
[INFO] tweaked toml for crates.io crate aahc 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding async-compat v0.1.4 (available: v0.2.4)
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.6.0)
[INFO] [stderr]       Adding bytes v0.5.6 (available: v1.7.2)
[INFO] [stderr]       Adding cfg-if v0.1.10 (available: v1.0.0)
[INFO] [stderr]       Adding mio v0.6.23 (available: v1.0.2)
[INFO] [stderr]       Adding miow v0.2.2 (available: v0.6.0)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (available: v0.2.14)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.40.0)
[INFO] [stderr]       Adding winapi v0.2.8 (available: v0.3.9)
[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] 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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8743663a82ee5bd9eec30761174194a8bd4acfed4d2da1bf8d27037f816329c
[INFO] running `Command { std: "docker" "start" "-a" "f8743663a82ee5bd9eec30761174194a8bd4acfed4d2da1bf8d27037f816329c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8743663a82ee5bd9eec30761174194a8bd4acfed4d2da1bf8d27037f816329c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8743663a82ee5bd9eec30761174194a8bd4acfed4d2da1bf8d27037f816329c", kill_on_drop: false }`
[INFO] [stdout] f8743663a82ee5bd9eec30761174194a8bd4acfed4d2da1bf8d27037f816329c
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcbea4b0a0cfc6c81228895f94dfecac7c931c587fb9b503f726d153c2fc939b
[INFO] running `Command { std: "docker" "start" "-a" "dcbea4b0a0cfc6c81228895f94dfecac7c931c587fb9b503f726d153c2fc939b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking aahc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stdout] warning: lint `rustdoc` has been removed: use `rustdoc::all` instead
[INFO] [stdout]  --> src/lib.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 6 |     rustdoc,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read`, `read_vectored`, and `read_vectored_bounded` are never used
[INFO] [stdout]   --> src/util/io.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub trait AsyncReadExt: AsyncRead {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] 38 |     /// Reads data to a caller-provided buffer.
[INFO] [stdout] 39 |     fn read<'buffer>(
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn read_vectored<'buffers>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn read_vectored_bounded<'bufs>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:7:2
[INFO] [stdout]    |
[INFO] [stdout] 7  |     unused
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking async-compat v0.1.4
[INFO] [stdout] warning: lint `rustdoc` has been removed: use `rustdoc::all` instead
[INFO] [stdout]  --> src/lib.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 6 |     rustdoc,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `async_compat` is unused in crate `aahc`
[INFO] [stdout]    |
[INFO] [stdout]    = help: remove the dependency or add `use async_compat as _;` to the crate root
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:20:2
[INFO] [stdout]    |
[INFO] [stdout] 20 |     unused_crate_dependencies,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `tokio` is unused in crate `aahc`
[INFO] [stdout]   |
[INFO] [stdout]   = help: remove the dependency or add `use tokio as _;` to the crate root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "dcbea4b0a0cfc6c81228895f94dfecac7c931c587fb9b503f726d153c2fc939b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcbea4b0a0cfc6c81228895f94dfecac7c931c587fb9b503f726d153c2fc939b", kill_on_drop: false }`
[INFO] [stdout] dcbea4b0a0cfc6c81228895f94dfecac7c931c587fb9b503f726d153c2fc939b