[INFO] fetching crate impl-tools 0.10.0...
[INFO] checking impl-tools-0.10.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate impl-tools 0.10.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate impl-tools 0.10.0 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 impl-tools 0.10.0
[INFO] finished tweaking crates.io crate impl-tools 0.10.0
[INFO] tweaked toml for crates.io crate impl-tools 0.10.0 written to /workspace/builds/worker-1-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 23 packages to latest compatible versions
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4d183ed2c9d41863d66a9d27fb42f0113b755b259f94e0413b914c1d9579f63c
[INFO] running `Command { std: "docker" "start" "-a" "4d183ed2c9d41863d66a9d27fb42f0113b755b259f94e0413b914c1d9579f63c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d183ed2c9d41863d66a9d27fb42f0113b755b259f94e0413b914c1d9579f63c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d183ed2c9d41863d66a9d27fb42f0113b755b259f94e0413b914c1d9579f63c", kill_on_drop: false }`
[INFO] [stdout] 4d183ed2c9d41863d66a9d27fb42f0113b755b259f94e0413b914c1d9579f63c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4d7d42b11f604a43d19e67422854741ca5ca9962db3ef0eedb10f3c7ca3d133e
[INFO] running `Command { std: "docker" "start" "-a" "4d7d42b11f604a43d19e67422854741ca5ca9962db3ef0eedb10f3c7ca3d133e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling impl-tools v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking syn v2.0.79
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling impl-tools-lib v0.10.0
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stdout] warning: unexpected `cfg` condition value: `never`
[INFO] [stdout]    --> tests/for_deref.rs:154:11
[INFO] [stdout]     |
[INFO] [stdout] 154 |     #[cfg(feature = "never")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `never` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `H` is never used
[INFO] [stdout]   --> tests/for_deref.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 | trait H<X, Y: G<X>>
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Cfgs` is never used
[INFO] [stdout]    --> tests/for_deref.rs:150:7
[INFO] [stdout]     |
[INFO] [stdout] 150 | trait Cfgs {
[INFO] [stdout]     |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> tests/for_deref.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | trait SharedData<Key>: Debug {
[INFO] [stdout]     |       ---------- method in this trait
[INFO] [stdout] 160 |     type Item;
[INFO] [stdout] 161 |     fn get(&self, key: &Key) -> Option<Self::Item>;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Void` is never used
[INFO] [stdout]   --> tests/autoimpl_enum.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum Void {}
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.89s
[INFO] running `Command { std: "docker" "inspect" "4d7d42b11f604a43d19e67422854741ca5ca9962db3ef0eedb10f3c7ca3d133e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7d42b11f604a43d19e67422854741ca5ca9962db3ef0eedb10f3c7ca3d133e", kill_on_drop: false }`
[INFO] [stdout] 4d7d42b11f604a43d19e67422854741ca5ca9962db3ef0eedb10f3c7ca3d133e