[INFO] fetching crate nexus-lib 0.1.0...
[INFO] checking nexus-lib-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate nexus-lib 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate nexus-lib 0.1.0 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 nexus-lib 0.1.0
[INFO] finished tweaking crates.io crate nexus-lib 0.1.0
[INFO] tweaked toml for crates.io crate nexus-lib 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding clutils v0.0.7 (available: v0.0.11)
[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-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 864acf0ba4ee49f95bc274394041876398df11db96881976f3c80272b5a866a7
[INFO] running `Command { std: "docker" "start" "-a" "864acf0ba4ee49f95bc274394041876398df11db96881976f3c80272b5a866a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "864acf0ba4ee49f95bc274394041876398df11db96881976f3c80272b5a866a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "864acf0ba4ee49f95bc274394041876398df11db96881976f3c80272b5a866a7", kill_on_drop: false }`
[INFO] [stdout] 864acf0ba4ee49f95bc274394041876398df11db96881976f3c80272b5a866a7
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecea5aa2c90b945688d87b3f43f1bb355beabf7758dbe977294dcf15abffc675
[INFO] running `Command { std: "docker" "start" "-a" "ecea5aa2c90b945688d87b3f43f1bb355beabf7758dbe977294dcf15abffc675", kill_on_drop: false }`
[INFO] [stderr]     Checking clutils v0.0.7
[INFO] [stderr]     Checking nexus-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser/ast.rs:223:45
[INFO] [stdout]     |
[INFO] [stdout] 223 |                   Statement::Variable(var) => format!(
[INFO] [stdout]     |  _____________________________________________^
[INFO] [stdout] 224 | |                     "{} {} = {}",
[INFO] [stdout] 225 | |                     match var.is_const {
[INFO] [stdout] 226 | |                         true => "const",
[INFO] [stdout] ...   |
[INFO] [stdout] 229 | |                     todo!(), //var.name,
[INFO] [stdout]     | |                     ------- any code following this expression is unreachable
[INFO] [stdout] 230 | |                     var.val,
[INFO] [stdout] 231 | |                 ),
[INFO] [stdout]     | |_________________^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parser/ast.rs:223:45
[INFO] [stdout]     |
[INFO] [stdout] 223 |                   Statement::Variable(var) => format!(
[INFO] [stdout]     |  _____________________________________________^
[INFO] [stdout] 224 | |                     "{} {} = {}",
[INFO] [stdout] 225 | |                     match var.is_const {
[INFO] [stdout] 226 | |                         true => "const",
[INFO] [stdout] ...   |
[INFO] [stdout] 229 | |                     todo!(), //var.name,
[INFO] [stdout]     | |                     ------- any code following this expression is unreachable
[INFO] [stdout] 230 | |                     var.val,
[INFO] [stdout] 231 | |                 ),
[INFO] [stdout]     | |_________________^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]    --> src/parser/ast.rs:232:35
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 Statement::Return(ret) => todo!(),
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `br`
[INFO] [stdout]    --> src/parser/ast.rs:233:34
[INFO] [stdout]     |
[INFO] [stdout] 233 |                 Statement::Break(br) => todo!(),
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_br`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lcl`
[INFO] [stdout]    --> src/parser/ast.rs:234:34
[INFO] [stdout]     |
[INFO] [stdout] 234 |                 Statement::Local(lcl) => todo!(),
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_lcl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]    --> src/parser/ast.rs:232:35
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 Statement::Return(ret) => todo!(),
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `br`
[INFO] [stdout]    --> src/parser/ast.rs:233:34
[INFO] [stdout]     |
[INFO] [stdout] 233 |                 Statement::Break(br) => todo!(),
[INFO] [stdout]     |                                  ^^ help: if this is intentional, prefix it with an underscore: `_br`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lcl`
[INFO] [stdout]    --> src/parser/ast.rs:234:34
[INFO] [stdout]     |
[INFO] [stdout] 234 |                 Statement::Local(lcl) => todo!(),
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_lcl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `CONTAINS`, `RANGE`, and `CONVERSION` are never constructed
[INFO] [stdout]   --> src/parser/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Precedence {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 29 |     CONTAINS,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     RANGE,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     CONVERSION,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Precedence` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `CONTAINS`, `RANGE`, and `CONVERSION` are never constructed
[INFO] [stdout]   --> src/parser/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Precedence {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 29 |     CONTAINS,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     RANGE,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     CONVERSION,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Precedence` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "ecea5aa2c90b945688d87b3f43f1bb355beabf7758dbe977294dcf15abffc675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecea5aa2c90b945688d87b3f43f1bb355beabf7758dbe977294dcf15abffc675", kill_on_drop: false }`
[INFO] [stdout] ecea5aa2c90b945688d87b3f43f1bb355beabf7758dbe977294dcf15abffc675