[INFO] fetching crate elfcore 1.1.5...
[INFO] checking elfcore-1.1.5 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate elfcore 1.1.5 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate elfcore 1.1.5 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 elfcore 1.1.5
[INFO] finished tweaking crates.io crate elfcore 1.1.5
[INFO] tweaked toml for crates.io crate elfcore 1.1.5 written to /workspace/builds/worker-5-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 19 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.6.0)
[INFO] [stderr]       Adding nix v0.26.4 (available: v0.29.0)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 73c3df41016c697d6a73f7e4efd0743eb631bcb8abc3245796d1ea86ac97e792
[INFO] running `Command { std: "docker" "start" "-a" "73c3df41016c697d6a73f7e4efd0743eb631bcb8abc3245796d1ea86ac97e792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73c3df41016c697d6a73f7e4efd0743eb631bcb8abc3245796d1ea86ac97e792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c3df41016c697d6a73f7e4efd0743eb631bcb8abc3245796d1ea86ac97e792", kill_on_drop: false }`
[INFO] [stdout] 73c3df41016c697d6a73f7e4efd0743eb631bcb8abc3245796d1ea86ac97e792
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] abf881ea5a52c229e3fcb329e00ed394b6ba78829498820226f7b06c69c238b2
[INFO] running `Command { std: "docker" "start" "-a" "abf881ea5a52c229e3fcb329e00ed394b6ba78829498820226f7b06c69c238b2", kill_on_drop: false }`
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking elfcore v1.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/arch/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct ArchComponentState {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 24 |     pub name: &'static str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ArchComponentState` has a derived impl for the trait `Debug`, 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: associated function `name` is never used
[INFO] [stdout]   --> src/arch/mod.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub trait Arch {
[INFO] [stdout]    |           ---- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn name() -> &'static str;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/arch/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct ArchComponentState {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] 24 |     pub name: &'static str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ArchComponentState` has a derived impl for the trait `Debug`, 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: associated function `name` is never used
[INFO] [stdout]   --> src/arch/mod.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub trait Arch {
[INFO] [stdout]    |           ---- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn name() -> &'static str;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "abf881ea5a52c229e3fcb329e00ed394b6ba78829498820226f7b06c69c238b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf881ea5a52c229e3fcb329e00ed394b6ba78829498820226f7b06c69c238b2", kill_on_drop: false }`
[INFO] [stdout] abf881ea5a52c229e3fcb329e00ed394b6ba78829498820226f7b06c69c238b2