[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 against master#0ef0dd24510b52da980889546fcd15254dc56a23 for pr-126452
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJwaffled%2Fjvm-r" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jwaffled/jvm-r on toolchain 0ef0dd24510b52da980889546fcd15254dc56a23
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0ef0dd24510b52da980889546fcd15254dc56a23" "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-1-tc1/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" "+0ef0dd24510b52da980889546fcd15254dc56a23" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking Jwaffled/jvm-r against try#d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9 for pr-126452
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJwaffled%2Fjvm-r" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jwaffled/jvm-r on toolchain d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9" "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-1-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" "+d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_enum v0.7.0
[INFO] [stderr]   Downloaded num_enum_derive v0.7.0
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16ee9e6590df022b7dd4787583b87f48df49046f4305e9a83ce8bd115874c9ea
[INFO] running `Command { std: "docker" "start" "-a" "16ee9e6590df022b7dd4787583b87f48df49046f4305e9a83ce8bd115874c9ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16ee9e6590df022b7dd4787583b87f48df49046f4305e9a83ce8bd115874c9ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16ee9e6590df022b7dd4787583b87f48df49046f4305e9a83ce8bd115874c9ea", kill_on_drop: false }`
[INFO] [stdout] 16ee9e6590df022b7dd4787583b87f48df49046f4305e9a83ce8bd115874c9ea
[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" "-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dc73cd581bb74fb06b7bd169b86a8456bab9c559187d41712b1e65e667d8dd1
[INFO] running `Command { std: "docker" "start" "-a" "8dc73cd581bb74fb06b7bd169b86a8456bab9c559187d41712b1e65e667d8dd1", 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: fields `stack` and `opcodes` are never read
[INFO] [stdout]   --> src/vm/jvm.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Runtime<'a> {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 15 |     stack: VecDeque<StackFrame<'a>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     opcodes: Vec<Opcode>,
[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: fields `locals`, `operand_stack`, and `constant_pool` are never read
[INFO] [stdout]   --> src/vm/jvm.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct StackFrame<'a> {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 33 |     locals: Vec<JValue>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     operand_stack: VecDeque<JValue>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 35 |     constant_pool: &'a ConstantPool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum JValue {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 39 |     Byte(i8),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 40 |     Short(i16),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 41 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     Long(i64),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 43 |     Char(u16),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 44 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 45 |     Double(f64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 46 |     Boolean(bool),
[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: fields `stack` and `opcodes` are never read
[INFO] [stdout]   --> src/vm/jvm.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Runtime<'a> {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 15 |     stack: VecDeque<StackFrame<'a>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     opcodes: Vec<Opcode>,
[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: fields `locals`, `operand_stack`, and `constant_pool` are never read
[INFO] [stdout]   --> src/vm/jvm.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct StackFrame<'a> {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 33 |     locals: Vec<JValue>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     operand_stack: VecDeque<JValue>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 35 |     constant_pool: &'a ConstantPool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/vm/jvm.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum JValue {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 39 |     Byte(i8),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 40 |     Short(i16),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 41 |     Int(i32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     Long(i64),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 43 |     Char(u16),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 44 |     Float(f32),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 45 |     Double(f64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 46 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "8dc73cd581bb74fb06b7bd169b86a8456bab9c559187d41712b1e65e667d8dd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc73cd581bb74fb06b7bd169b86a8456bab9c559187d41712b1e65e667d8dd1", kill_on_drop: false }`
[INFO] [stdout] 8dc73cd581bb74fb06b7bd169b86a8456bab9c559187d41712b1e65e667d8dd1