[INFO] cloning repository https://github.com/Jwaffled/jvm-r
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jwaffled/jvm-r" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJwaffled%2Fjvm-r", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJwaffled%2Fjvm-r'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2abd5d833aae465dbc54e16720c592e501a3a53
[INFO] checking Jwaffled/jvm-r/b2abd5d833aae465dbc54e16720c592e501a3a53 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJwaffled%2Fjvm-r" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jwaffled/jvm-r 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 git repo https://github.com/Jwaffled/jvm-r
[INFO] finished tweaking git repo https://github.com/Jwaffled/jvm-r
[INFO] tweaked toml for git repo https://github.com/Jwaffled/jvm-r written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Jwaffled/jvm-r already has a lockfile, it will not be regenerated
[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] 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] 4282a5160a123152df71e8e820c1669fa9373c1edebf644bf7e8e1aa2c5c2105
[INFO] running `Command { std: "docker" "start" "-a" "4282a5160a123152df71e8e820c1669fa9373c1edebf644bf7e8e1aa2c5c2105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4282a5160a123152df71e8e820c1669fa9373c1edebf644bf7e8e1aa2c5c2105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4282a5160a123152df71e8e820c1669fa9373c1edebf644bf7e8e1aa2c5c2105", kill_on_drop: false }`
[INFO] [stdout] 4282a5160a123152df71e8e820c1669fa9373c1edebf644bf7e8e1aa2c5c2105
[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] 91f0b8e1bf77f3d25f00f2d14ba43e28c143dc35eb23fd8e3c6a89eb5c41aa42
[INFO] running `Command { std: "docker" "start" "-a" "91f0b8e1bf77f3d25f00f2d14ba43e28c143dc35eb23fd8e3c6a89eb5c41aa42", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling winnow v0.5.17
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling indexmap v2.0.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling num_enum_derive v0.7.0
[INFO] [stderr]     Checking num_enum v0.7.0
[INFO] [stderr]     Checking jvm-r v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `JVM` is never constructed
[INFO] [stdout]  --> src/vm/jvm.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct JVM<'a> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClassLoader` is never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct ClassLoader {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `JVM` is never constructed
[INFO] [stdout]  --> src/vm/jvm.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct JVM<'a> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClassLoader` is never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct ClassLoader {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Runtime` is never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Runtime<'a> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/vm/jvm.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<'a> Runtime<'a> {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Interpreter {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ConstantPool` is never used
[INFO] [stdout]   --> src/vm/jvm.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | type ConstantPool = Vec<ConstantPoolInfo>;
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StackFrame` is never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct StackFrame<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `JValue` is never used
[INFO] [stdout]   --> src/vm/jvm.rs:38:6
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum JValue {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Runtime` is never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Runtime<'a> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/vm/jvm.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<'a> Runtime<'a> {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Interpreter {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ConstantPool` is never used
[INFO] [stdout]   --> src/vm/jvm.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | type ConstantPool = Vec<ConstantPoolInfo>;
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StackFrame` is never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct StackFrame<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `JValue` is never used
[INFO] [stdout]   --> src/vm/jvm.rs:38:6
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum JValue {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.93s
[INFO] running `Command { std: "docker" "inspect" "91f0b8e1bf77f3d25f00f2d14ba43e28c143dc35eb23fd8e3c6a89eb5c41aa42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91f0b8e1bf77f3d25f00f2d14ba43e28c143dc35eb23fd8e3c6a89eb5c41aa42", kill_on_drop: false }`
[INFO] [stdout] 91f0b8e1bf77f3d25f00f2d14ba43e28c143dc35eb23fd8e3c6a89eb5c41aa42