[INFO] fetching crate katachi_core 0.0.0...
[INFO] checking katachi_core-0.0.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate katachi_core 0.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate katachi_core 0.0.0 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 katachi_core 0.0.0
[INFO] finished tweaking crates.io crate katachi_core 0.0.0
[INFO] tweaked toml for crates.io crate katachi_core 0.0.0 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 18 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.79)
[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] 6e791ac4f2bfa8145284296cd786bffc8df8fcfb5a996a7b19d58f292f5d19f3
[INFO] running `Command { std: "docker" "start" "-a" "6e791ac4f2bfa8145284296cd786bffc8df8fcfb5a996a7b19d58f292f5d19f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e791ac4f2bfa8145284296cd786bffc8df8fcfb5a996a7b19d58f292f5d19f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e791ac4f2bfa8145284296cd786bffc8df8fcfb5a996a7b19d58f292f5d19f3", kill_on_drop: false }`
[INFO] [stdout] 6e791ac4f2bfa8145284296cd786bffc8df8fcfb5a996a7b19d58f292f5d19f3
[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] da7f5e357274b9c1071e2f69325ae3a97f06b613974123ae25daac18f154372b
[INFO] running `Command { std: "docker" "start" "-a" "da7f5e357274b9c1071e2f69325ae3a97f06b613974123ae25daac18f154372b", kill_on_drop: false }`
[INFO] [stderr]     Checking allocator-api2 v0.2.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking lasso v0.7.3
[INFO] [stderr]    Compiling easy_from v0.0.0
[INFO] [stderr]     Checking katachi_core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `easy_from::EasyFrom`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use easy_from::EasyFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `easy_from::EasyFrom`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use easy_from::EasyFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]    --> src/katachi.rs:459:2
[INFO] [stdout]     |
[INFO] [stdout] 459 |     scope: &mut Scope,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arena`
[INFO] [stdout]    --> src/katachi.rs:460:2
[INFO] [stdout]     |
[INFO] [stdout] 460 |     arena: &Forms,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_arena`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/katachi.rs:461:2
[INFO] [stdout]     |
[INFO] [stdout] 461 |     stack: &EvalStack,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scope`
[INFO] [stdout]    --> src/katachi.rs:459:2
[INFO] [stdout]     |
[INFO] [stdout] 459 |     scope: &mut Scope,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_scope`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arena`
[INFO] [stdout]    --> src/katachi.rs:460:2
[INFO] [stdout]     |
[INFO] [stdout] 460 |     arena: &Forms,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_arena`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/katachi.rs:461:2
[INFO] [stdout]     |
[INFO] [stdout] 461 |     stack: &EvalStack,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `schema`
[INFO] [stdout]    --> src/katachi.rs:591:7
[INFO] [stdout]     |
[INFO] [stdout] 591 |         let schema = schema.as_struct().unwrap();
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_schema`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user`
[INFO] [stdout]    --> src/katachi.rs:608:7
[INFO] [stdout]     |
[INFO] [stdout] 608 |         let user = user.as_struct().unwrap();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_user`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `eval_stack` and `error` are never read
[INFO] [stdout]    --> src/katachi.rs:182:2
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct EvalError {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 182 |     eval_stack: EvalStack,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 183 |     error:      EvalErrorKind,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EvalError` 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: fields `name`, `type_`, and `default_value` are never read
[INFO] [stdout]    --> src/katachi.rs:236:2
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub struct Arg {
[INFO] [stdout]     |            --- fields in this struct
[INFO] [stdout] 236 |     name:          StrID,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 237 |     type_:         Type,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 238 |     default_value: Option<Value>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Arg` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_with_parent` is never used
[INFO] [stdout]    --> src/katachi.rs:335:5
[INFO] [stdout]     |
[INFO] [stdout] 327 | impl<'parent> Scope<'parent> {
[INFO] [stdout]     | ---------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 335 |     fn new_with_parent(parent: &'parent Scope) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `eval_stack` and `error` are never read
[INFO] [stdout]    --> src/katachi.rs:182:2
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct EvalError {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 182 |     eval_stack: EvalStack,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 183 |     error:      EvalErrorKind,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EvalError` 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: fields `name`, `type_`, and `default_value` are never read
[INFO] [stdout]    --> src/katachi.rs:236:2
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub struct Arg {
[INFO] [stdout]     |            --- fields in this struct
[INFO] [stdout] 236 |     name:          StrID,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 237 |     type_:         Type,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 238 |     default_value: Option<Value>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Arg` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_with_parent` is never used
[INFO] [stdout]    --> src/katachi.rs:335:5
[INFO] [stdout]     |
[INFO] [stdout] 327 | impl<'parent> Scope<'parent> {
[INFO] [stdout]     | ---------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 335 |     fn new_with_parent(parent: &'parent Scope) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "da7f5e357274b9c1071e2f69325ae3a97f06b613974123ae25daac18f154372b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7f5e357274b9c1071e2f69325ae3a97f06b613974123ae25daac18f154372b", kill_on_drop: false }`
[INFO] [stdout] da7f5e357274b9c1071e2f69325ae3a97f06b613974123ae25daac18f154372b